Trane Indirect Fired Make Up Air Catalogue MUA DS 5 01/01/1998 Outdoor Gas Heating Units And Duct Furnaces Packaged Rooftop Unit For Heating, Cooling, Ventilating, M

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MUA-DS-5

January 1998

Second Printing

Outdoor Gas

Heating Units and

Duct Furnaces

Packaged Rooftop Unit for

Heating, Cooling, Ventilating

and Make-Up Air Applications

MUA-DS-5

2

©American Standard Inc. 1998

Features

and

Benefits

The Trane rooftop line is a packaged air

heating and cooling system, suitable

for heating, cooling, ventilating

and make- up air applications. Unit

sizes range from 800 to 14,000 cfm

(0.4-6.6 cu. m/s) with 1/2-15 hp motor

capabilities. These rooftops are

available with inputs from 100,000

Btu/h

to 1,200,000 Btu/h (29.3 to 351.4 kW).

Duct furnaces are AGA and CGA

certified for safety and performance

with a range of 100,000 Btu/h input to

400,000 Btu/h (29.3 to 117.1 kW) input

per duct furnace. Packaged units are

also ETL and CSA certified for electrical

safety in compliance with UL-1995

Standard for HVAC equipment. The

rooftop units can be ordered as

individual duct furnaces only, heating

with evaporative cooling or packaged

heating and cooling systems.

The mechanical configuration is

determined by selecting one of the nine

standard arrangements. Rooftop

arrangements are divided into two

classifications  standard and high cfm

blower types.

The standard blower unit consists of a

blower cabinet that houses the

dampers, filters and blower in one

cabinet. An optional evaporative

cooling unit is available on units up to

800 MBh (234.3 kW). Trane

recommends the use of 409 stainless

steel whenever an evaporative cooling

unit is installed upstream of a duct

furnace section(s).

The high cfm blower unit utilizes a

separate damper/filter cabinet with a

V bank filter arrangement, a blower

cabinet and up to three duct furnaces

(1200 MBh) (351.4 kW). An optional

cooling coil cabinet is offered on units

up to 800 MBh. Trane recommends the

use of 409 stainless steel whenever a

cooling coil is used upstream of a

furnace section(s). Both standard and

high cfm blower arrangements may

also include a downturn supply air

plenum, outside air and/or return air,

intake hood and a roof curb.

All units are completely packaged, rail-

mounted, wired, piped, waterproofed

and test fired to assure a smooth

installation and easy start-up.

Furnace types are divided into two

classifications  standard temperature

rise and high temperature rise with

natural and power vented models. All

furnaces have optional left or right

hand access. Standard temperature

rise units have a lower pressure drop

across the heat exchanger allowing

higher airflow capabilities and an 80

percent efficiency rating with a

temperature rise of 20 to 60 F (11 to

33 C). High temperature rise units are

configured for higher temperature rise,

and have a higher pressure drop

across the furnace section of the unit

and a 79 percent efficiency rating with

a temperature rise of 60 to 90 F (33 to

50 C). The high temperature rise type

furnace is not available in California

and only available in a single furnace

package. The maximum discharge air

temperature for all duct furnaces is

150 F (66 C).

In addition to a versatile offering of

mechanical features, this new rooftop

unit also offers a wide variety of factory

installed control options. Control

components are located in the main

electrical cabinet. The main electrical

cabinet is located out of the air stream

as part of the blower transition,

between the blower cabinet and the

first furnace for both standard and high

cfm units. The standard electrical

control scheme consists of a solid-state

fan time delay, two pre-wired relay

sockets which are mounted on the

units main connection board, a solid-

state gas ignition system and room or

duct thermostats. The units are also

equipped with a blower door safety

interlock, a 24 VAC circuit breaker, a

high temperature limit switch in each

furnace section and a reverse airflow

switch located in the blower cabinet as

standard equipment.

Gas control options range from single

stage to six stages of fire, mechanical

or electronic modulation and direct

digital control (DDC) interface. Air

control options offer a similar range of

control features from manual dampers

to modulating dampers that may

include mixed air, dry bulb, pressure

sensing, enthalpy control, DDC

interface or ASHRAE cycle control

arrangements.

The venting is an integral part of the

furnace and must not be altered in the

field. The rooftop furnaces are

equipped with a vent cap which is

designed for gravity venting. Air for

combustion enters at the base of the

vent through a protective grill, and the

design of the vent cap is such that the

products of combustion are discharged

at the upper section of the cap. This cap

is shipped in a separate carton. It

should be fastened in position and not

be altered in any way.

Gravity Venting

Power Venting

3

Features and Benefits 2

Unit Configurations 4

Model Number Description 7

General Data 9

Application Considerations 11

Selection Procedure 20

Performance Adjustment Factors

26

Performance Data 26

Electrical Data 42

Controls 43

Dimensional Data 46

Weights 100

Options 102

Features Summary 105

Mechanical Specifications 106

Contents

The proximity of the combustion air

inlet to products of combustion

discharge is designed to provide

trouble-free operation under all types of

wind conditions.

The power vented unit has a system

with the inlet and discharge grill located

in the upper section of a split-side

panel. This balanced flue design also

performs well under virtually all wind

conditions.

Features and Benefits

AGA and CGA Certified Duct Furnaces

ETL and CSA UL-1995 Certified

Packaged Units

FM (Factory Mutual) Compliant

Heating Capacities from 100 MBh to

1200 MBh (29.3 kW to 351.4 kW)

Gravity and Power Vented Furnaces

80% Efficient Standard Temperature

Rise Furnace - 20 to 60 F (11 to 33 C) per

Furnace

79% Efficient High Temperature Rise

Furnace - 60 to 90 F (33 to 50 C) - single

furnace only



CFM ranges from 800 to 14,000 CFM

(0.4 to 6.6 Cu.m/s)

Motor sizes up to 15 horsepower

ODP motors with high efficiency, totally

enclosed and two-speed options

Left hand or right hand service access

Draw-thru coil cabinet with stainless

steel drain pan

Evaporative cooling with standard 8 or

optional 12 media (203 or 305 mm)

Uninsulated or insulated roof curb

Standard 18-gauge cabinets

Standard 20-gauge aluminized steel

heat exchanger. Optional stainless

steel.

Standard one-inch washable filters

Standard single stage combination gas

valve

Standard high temperature limit (each

furnace)

Standard blower door safety interlock

switch

Standard reverse airflow safety switch

Standard 24-volt circuit breaker

Standard printed circuit main

connection board

Wiring harnesses with stamped wire

numbers

Solid-state automatic pilot ignition

control

Solid-state fan time delay

Over 40 standard gas and air control

packages

4

Unit Type Standard Features

Arrangement A - Natural or LP (Propane Gas)

Rooftop Duct Furnace - Single Stage 24-Volt Gas Valve

- Intermittent Pilot Ignition

- Orificed for Operation Up To 2000' Above Sea Level

- Aluminized Steel Heat Exchanger

- Flue Vent Cap (Gravity Vent Only)

- 24-Volt High Temperature Safety Circuit

- Terminal Block Wiring, Single Point Connection

- Quick Opening Access Doors

Arrangement B Same as Arrangement A with:

Rooftop Heating Unit With Standard Blower - Insulated Blower/Filter/Damper Cabinet

- 1 Permanent Filters

- Fan Time Delay Relay

- Electrical Cabinet Isolated from the Air Stream

- 24-Volt Control Circuitry

- Low Voltage Circuit Breaker

- Blower Door Interlock Switch with Service Override

Arrangement C Same as Arrangement B with:

Rooftop Heating Unit with Standard Blower - Insulated Supply Plenum

and Downflow Supply Plenum

See page 6 for Legend.

Unit

Configurations



5

Unit

Configurations



Unit Type Standard Features

Arrangement D Same as Arrangement B with:

Rooftop Heating Unit with Standard Blower - Evaporative Cooler

and Evaporative Cooler - High Efficiency 8 Media

- Self-Cleaning Design

- Sealed Pump Motor with Float Valve

- 24-Volt Control Circuitry

- Heavy-Duty Stainless Steel Water Tank

- Easy Access Intake Filter and PVC Distribution Tubes

Arrangement E

Rooftop Heating Unit with Standard Blower, Same as Arrangement D with:

Evaporative Cooler and Downflow Supply Plenum - Downflow Supply Plenum

Arrangement G - Natural or LP (Propane Gas)

Rooftop Heating Unit with High Cfm Blower - Single-Stage 24 Volt Gas Valve

- Intermittent Pilot Ignition

- Orificed for Operation up to 2000' above Sea Level

- Aluminized Steel Heat Exchanger

- Flue Vent Cap (Gravity Vent Only)

- 24-Volt High Temperature Safety Circuit

- Terminal Block Wiring, Single Point Connection

- Quick Opening Access Doors

- Permanent Filter

- Fan Time Delay Relay

- Standard V-bank Filter and Damper Cabinet

- Insulated Filter/Damper and Blower Cabinet

Arrangement J Same as Arrangement G with:

Rooftop Heating Unit with High Cfm Blower - Insulated Supply Plenum

and Downflow Supply Plenum

See page 6 for Legend.

6

Unit Type Standard Features

Arrangement K Same as Arrangement G with:

Rooftop Heating Unit with High Cfm Blower - Coil Section

and Coil Cabinet - Mounting for 4 to 6 Row Coils

- Stainless Steel Drain Pan with 3/4 Tapped Outlets

Arrangement L Same as Arrangement K with:

Rooftop Heating Unit with High Cfm Blower, - Insulated Supply Plenum

Coil Cabinet and Downflow Supply Plenum

Motors, Air Inlet Configuration/Air Control and Damper Arrangement Must Be Selected for Each Unit

Notes:

1. Gravity vent or power vent models available on all unit sizes.

2. Optional air inlet hood shown in dotted lines.

3. Legend is as follows:

B/F/D - Standard Blower/Filter/Damper

SP - Supply Plenum

EV - Evaporative Cooler

F/D - Filter/Damper

B - High cfm Blower

CC - Coil Cabinet

4. Horizontal outside air over return air. Specify air inlet configuration 4 or 5 and then select miscellaneous option D for

horizontal return.

Air Inlet Configurations (Digit 18 of the Model Number)

Unit

Configurations

1 2 3 4 5 See Note 4 Above

7

Model

Number

Description

Digit 1  Gas Heating Equipment

G = Gas

Digit 2  Unit Type

F = Rooftop Duct Furnace

R = Rooftop Heating Unit

S = Special Unit Type

Digit 3  Furnace Type

A = Standard Temp Rise (20-60 F) LH

B = Standard Temp Rise (20-60 F) RH

C = High Temp Rise (60-90 F) LH

D = High Temp Rise (60-90 F) RH

S = Special Furnace Type

Note: LH = Left Hand

RH = Right Hand

Digit 4  Development Sequence

A = First Generation

Digit 5,6  Input Capacity

Single Furnace

10 = 100 MBh Input

15 = 150 MBh Input

20 = 200 MBh Input

25 = 250 MBh Input

30 = 300 MBh Input

35 = 350 MBh Input

40 = 400 MBh Input

Double Furnace

50 = 500 MBh Input

60 = 600 MBh Input

70 = 700 MBh Input

80 = 800 MBh Input

Triple Furnace

12 = 1200 MBh Input

SS = Special unit

Digit 7  Venting Type

G = Gravity Venting

P = Power Venting

S = Special Venting

Digit 8  Main Power Supply

A = 115/60/1

B = 208/60/1

C = 230/60/1

D = 208/60/3

E = 230/60/3

F = 460/60/3

G = 575/60/3

S = Special Main Power Supply

Digit 9  Gas Control Option (Intermittent

Pilot Ignition)

A = Single-Stage

B = Two-Stage

C = Hydraulic Modulating (60-100)

D = Hydraulic Modulating (75-200)

E = Hydraulic Modulating With Bypass and

limit (60-100)

F = Hydraulic Modulating With Bypass

(75-200)

G = Electronic Modulating With Room

T-Stat

H = Electronic Modulating With Duct T-Stat

J = Electronic Modulating With Duct T-Stat

and Override Room Thermostat

K = Electronic Modulating W/External

4-20 mA Input (Furnace 1)

L = Electronic Modulating W/External

4-20 mA Input (All furnaces)

M = Electronic Modulating W/External

0-10 VDC Input (Furnace 1)

N = Electronic Modulating W/External

0-10 VDC Input (All furnaces)

P = Two-Stage Discharge Air Control w/OA

Reset.

R = Three-Stage Discharge Air Control

w/OA Reset.

T = Four-Stage Discharge Air Control w/OA

reset.

U = S-350 2 Stage Modular Electronic

Control System

W= S-350 3 Stage Modular Electronic

Control System

X = S-350 4 Stage Modular Electronic

Control System

Y = S-350 6 Stage Modular Electronic

Control System

S = Special Gas Control

Digit 10, 11  Design Sequence

DO = Design Sequence

Digit 12  Fuel Type

N = Natural Gas

P = LP (Propane) Gas

L = Natural Gas with 100% Lockout

S = Special Fuel type

Digit 13  Heat Exchanger Material

1 = Aluminized Steel

2 = #409 Stainless Steel (First Furnace Only)

3 = #409 Stainless Steel (All Furnace

Sections)

4 = #321 Stainless Steel (First Furnace Only)

5 = #321 Stainless Steel (All Furnace

Sections)

6 = #409 Stainless Steel Package

(First Furnace Only)

7 = #409 Stainless Steel Package

(All Furnace Sections)

8 = #321 Stainless Steel Package

(First Furnace Only)

9 = #321 Stainless Steel Package

(All Furnace Sections)

S= Special Heat Exchanger Package

Digit 14  Rooftop Arrangements

A = Duct Furnace

B = Blower (Standard)

C = Blower (Standard) Plenum

D = Blower (Standard) Evaporative Cooler

E = Blower (Standard) Evaporative Cooler/

Plenum

G = Blower (High CFM) /Plenum

J = Blower (High CFM) /Plenum

K = Blower (High CFM) /Coil Cabinet

L = Blower (High CFM) /Coil Cabinet/

Plenum

S = Special Rooftop Arrangement

Digit 15  Rooftop Heating Unit Motor

Selection

0 = None (Rooftop duct furnace)

A=1/2 HP w/contactor

B=

3/4 HP w/contactor

C = 1 HP w/contactor

D=1

1/2 HP w/contactor

E = 2 HP w/contactor

F = 3 HP w/contactor

G = 5 HP w/contactor

H=1/2 HP w/magnetic starter

J=

3/4 HP w/magnetic starter

K = 1 HP w/magnetic starter

L=1

1/2 HP w/magnetic starter

N = 2 HP w/magnetic starter

P = 3 HP w/magnetic starter

Q = 5 HP w/magnetic starter

R=7

1/2 HP w/magnetic starter

T = 10 HP w/magnetic starter

U = 15 HP w/magnetic starter

S = Special Motor

Digit 16  Motor Speed

0 = No Selection

1 = Single Speed ODP 1800 RPM

2 = Single Speed TEFC 1800 RPM

3 = Single Speed High Efficiency ODP

1800 RPM

4 = Single Speed High Efficiency

TEFC 1800 RPM

5 = 2S1W ODP 1800/900 RPM

6 = 2S2W ODP 1800/1200 RPM

S = Special Motor Speed & Starter

Digit 17  Coil Options

0 = No cooling coil selection

A = DX coil, 4 Row, Single Circuit

B = DX coil, 4 Row, Dual Circuit

C = DX coil, 6 Row, Single Circuit

D = DX coil, 6 Row, Dual Circuit

E = Chilled Water Coil, 4 Row,

G = Chilled Water Coil, 6 Row,

S = Special coil

G R A A 40 G D C C 0 N 2 B Q 1 0 2 A 0 +

12345,6789101112131415161718192021

8

Model

Number

Description

Digit 18  Air Inlet Configuration

0 = None (Rooftop Duct Furnace)

1 = Outside Air (OA) (Horizontal Inlet)

2 = Outside Air W/Air Hood (Horizontal

Inlet

3 = Bottom Return Air (RA)

4 = Outside And Return Air (OA/RA)

5 = Outside and Return Air W/Air Hood

S= Special Air inlet configuration

Digit 19  Air Control and Damper

Arrangement

0 = None (Rooftop Duct Furnace)

A = Outside Air 2 pos. Motor/SR

B = Return Air 2 pos. Motor/SR

C = OA/RA 2 pos SR

E = OA/RA Mod Mtr W/Mixed Air Control/

Min Pot/SR

H = OA/RA Mod Mtr W/Mixed Air Control/

SR

K = OA/RA Mod Mtr W/Min Pot/SR

M = OA/RA Mod Mtr W/Dry Bulb/Mixed Air

Control/Min Pot/SR

N = OA/RA Mod Mtr W/ Enthalpy

Controlled Economizer/SR

P = OA/RA Mod Mtr W/ Space Pressure

Controller

R = OA/RA Mod Mtr W/ S-350 P

Proportional Mixed Air Control/SR

U = OA/RA Mtr. W/External 0-10 VDC and

4-20 mA Analog Input/SR (External

Input)

W= ASHRAE Cycle I (OA/RA 2 pos. w/

warm-up stat/SR

X = ASHRAE Cycle II (OA/RA Mod

W/Warm-up Stat/Mixed Air/min pot/SR

Y = ASHRAE Cycle III (OA/RA Mod.

W/Warm-up Stat/Mixed Air/SR

Z = Manual Dampers

S = Special Air Control and Damper

Arrangement

Digit 20

0 = Non-California Shipment

1 = California Shipment

Digit 21  Miscellaneous Options

A = Orifices For Elevation Above 2000 Feet

(Specify Elevation)

B = 12 Evaporative Media

C = Moisture Eliminators

D = Horizontal Return

E = Continuous Fan Relay

F = Freezestat

G = Fan Time Delay Control

(Duct Furnace Only)

H = Return Air Firestat

J = Supply Air Firestat

K = Manual Blower Switch

L = 409 Stainless Steel Furnace Drip Pan

N = Foil Face Insulation

P = Low Leak Dampers

Q = Clogged Filter Switch

R = High/Low Gas Pressure Limit Switches

T = Status Indicator Lamps (Elec Cabinet)

V = Manual Reset High LImit Switch

W= Interlock Relay 24/115V Coil

SPDT 10A

X = Interlock Relay 24/115-230V Coil

DPDT 10A

Y = Ambient Lockout

9

Furnace Type A,B Capacity 50-80 Capacity 50-80 Capacity 50-80 Capacity 50-80

∆T40 - 120F 50 - 3,000-3,500 CFM, 1 - 5 HP 50 - 3,000-3,500 CFM, 1 - 5 HP 50 - 3,100-7,500 CFM, 1 - 10 HP 50 - 3,000-4,400 CFM, 1 - 10 HP

60 - 3,700-6,500 CFM, 1 - 5 HP 60 - 3,700-6,500 CFM, 1 - 5 HP 60 - 3,700-11,000 CFM, 3/4 - 15 HP 60 - 3,700-5,700 CFM, 3/4 - 15 HP

70 - 4,500-8,000 CFM, 1 - 5 HP 70 - 4,500-8,000 CFM, 1 - 5 HP 70 - 4,500-13,000 CFM, 1 - 15 HP 70 - 4,500-5,700 CFM, 1 - 15 HP

80 - 5,000-8,000 CFM, 1 - 5 HP 80 - 5,000-8,000 CFM, 1 - 5 HP 80 - 5,000-13,500 CFM, 1 - 15 HP 80 - 5,000-6,300 CFM, 1 - 15 HP

ESP .1 - 2 in. WC ESP .1 - 2 in. WC ESP .1 - 2 in. WC ESP .1 - 2 in. WC

Furnace Type A,B NA NA Capacity 12 NA

∆T60 - 180F 12 - 5,500-13,000 CFM, 1 1/2 - 15 HP

ESP .1 - 2 in. WC

These minimum and maximum CFMs shown are for Arrangements K and L in the cooling mode. See Performance Data for heating mode specifications.

Furnace Type C,D Capacity 10-40 Capacity 10-40 NA Capacity 20-40

∆T60 - 90F 10 - 800-1,200 CFM, 1/2 - 1 1/2 HP 10 - 800-1,200 CFM, 1/2 - 1 1/2 HP 20 - 1,600-2,400 CFM, 1/2 - 2 HP

15 - 12,000-1,800 CFM, 1

/2 - 2 HP 15 - 12,000-1,800 CFM, 1

/2 - 2 HP 25 - 2,000-3,000 CFM, 1/2 - 2 HP

20 - 1,600-2,400 CFM, 1/2 - 2 HP 20 - 1,600-2,400 CFM, 1/2 - 2 HP 30 - 2,400-3,600 CFM, 1/2 - 5 HP

25 - 2,000-3,000 CFM, 1/2 - 3 HP 25 - 2,000-3,000 CFM, 1/2 - 3 HP 35 - 3,000-4,200 CFM, 1/2 - 5 HP

30 - 2,400-3,600 CFM, 1/2 - 5 HP 30 - 2,400-3,600 CFM, 1/2 - 5 HP 40 - 3,300-5,000 CFM, 1/2 - 5 HP

35 - 2,800-4,200 CFM, 1/2 - 5 HP 35 - 2,800-4,200 CFM, 1/2 - 5 HP

40 - 3,200-4,800 CFM, 1/2 - 5 HP 40 - 3,200-4,800 CFM, 1/2 - 5 HP

ESP .1 - 2 in. WC ESP .1 - 2 in. WC ESP .1 - 2 in. WC

Furnace Type A,B Capacity 10-40 Capacity 10-40 Capacity 20-40 Capacity 10-40

∆T20 - 60F 10 - 1,200-3,500 CFM, 1/2 - 5 HP 10 -1,200-3,500 CFM, 1/2 - 5 HP 20 -2,500-7,400 CFM, 3/4 - 10 HP 10 -1,200-3,000 CFM, 1/2 - 5 HP

15 - 2,000-4,500 CFM, 1/2 - 5 HP 15 - 2,000-4,500 CFM, 1/2 - 5 HP 25 - 3,100-7,500 CFM, 3/4 - 10 HP 15 - 2,000-3,000 CFM, 1/2 - 5 HP

20 - 2,500-5,500 CFM, 1/2 - 5 HP 20 - 2,500-5,500 CFM, 1/2 - 5 HP 30 - 3,700-11,00 CFM, 1/2 - 15 HP 20 - 2,500-4,400 CFM, 3/4 - 10 HP

25 - 3,000-5,500 CFM, 3/4 - 5 HP 25 - 3,000-5,500 CFM, 3/4 - 5 HP 35 - 4,500-13,000 CFM, 3/4 - 15 HP 25 - 3,100-4,400 CFM, 3/4 - 10 HP

30 - 3,700-7,000 CFM, 3/4 - 5 HP 30 - 3,700-7,000 CFM, 3/4 - 5 HP 40 - 5,000-14,000 CFM, 1 - 15 HP 30 - 3,700-5,700 CFM, 1/2 - 15 HP

35 - 4,500-8,500 CFM, 3/4 - 5 HP 35 - 4,500-8,500 CFM, 3/4 - 5 HP 35 - 4,500-5,700 CFM, 3/4 - 15 HP

40 - 5,000-8,500 CFM, 1 - 5 HP 40 - 5,000-8,500 CFM, 1 - 5 HP 40 - 5,000-6,300 CFM, 1 - 15 HP

ESP .1 - 2 in. WC ESP .1 - 2 in. WC ESP .1 - 2 in. WC ESP .1 - 2 in. WC

Standard Blower Standard Blower w/Evap. High CFM Blower High CFM Blower w/Cooling

Rooftop Arrangements B,C Rooftop Arrangements D,E Rooftop Arrangements G, J Rooftop Arrangements K,L*

General

Data

Intake Hood

Blower/Main Electrical

(High CFM) 0-15 HP

Damper/Filters

(High CFM)

Coil Cabinet

(High CFM) Furnace One

Dampers/Filters/Blower/Main

Electrical

(Standard) 0-5 HP

Evaporative Cooler

(Standard)

Supply Plenum

Furnace Two

Furnace Type A-B

Arrangement B-E

Arrangement G-L

Furnace Three

Furnace Type A-B

Arrangement G-J Only

*The maximum CFM for

Rooftop Arrangements

K and L is 6,300

(3.0 m3/S). A two-speed

motor may be utilized

for non-cooling airflow

up to 14,000 CFM

(6.6 m3/S).

10

Table G-1  Filter Data

Rooftop Unit Size

Arrangement 10,15 20,25,50 30,35,60,70 40,80,12

B-E (4)16 x 20 (4)20 x 20 (4)16 x 20 (6)20 x 20

(2)20 x 20

G-L (8)16 x 20 (8)20 x 20 (8)16 x 20 (12)20 x 20

(4)20 x 20

Table G-2  Metric Conversion Table

Unless otherwise specified, the following conversions may be used for calculating SI unit measurements:

1 cubic foot= 0.028 m31 inch water column = 0.029 kPa

1 foot = 0.0305 m 1 gallon = 3.785 L

1 inch = 25.4 mm 1,000 Btu/Cu. Ft. = 37.5 MJ/m3

1 psig = 6.894 kPa 1 liter/second = CFM x 0.472

1 pound = 0.453 kg 1 meter/second = FPM ÷ 196.8

1,000 Btu per hour = 0.293 kW

General

Data



11

Gas Heating Value

The majority of gas heating units are

installed in applications where natural

gas is readily available. In areas where

natural gas is not available, Trane units

may be ordered directly from the

factory for use on LP (propane) gas.

Gas heat content varies by fuel type

and location. The standard gross

heating value for natural gas is 1,000

Btuh per cubic foot; for propane it is

2,500 Btuh per cubic foot. Significant

variations from these standard values

should be taken into account in

equipment selections. To account for

variations in the gross heating value of

the fuel, adjust the total heat input

required and select the unit on the

basis of the adjusted load using the

following formula:

Adjusted load = Calculated load x

Standard gross heat value (Btuh/cu ft)

Actual gross heat value (Btuh/cu ft)

Low Temperature Rise

Trane recommends against the set-up

of a unit which will result in a

temperature rise of less than 20 F. With

such low temperature rises, the flue

gases passing through the heat

exchanger are cooled to condensate

before reaching the flue outlet. This

condensate is corrosive and will result

in shortened heat exchanger life.

Air Density

Catalog performance data is based on

elevations up to 2,000 feet (610 m)

above sea level. Above 2,000 feet

(610 m), the units heating capacity

must be derated four percent for each

1,000 feet above sea level and special

orifice selections are required. Table

PAF-1 contains correction factors that

can be applied to the units cataloged

heating capacity, fan rpm, and fan bhp

to obtain actual values for elevations

above 2,000 feet.

Corrosive Atmospheres

Corrosion of heat exchangers and draft

diverters have two basic variables 

moisture (condensation) and sulphur.

These two ingredients form to make

sulfuric acid in the combustion

process. Condensation occurs

commonly in make-up air systems,

using large amounts of fresh air, when

air temperatures entering the heat

exchanger drop to 40 F or below. This

reaction can also occur in recirculating

systems where some quantity of

outside air is introduced upstream

of the exchanger. The sulphur will

always be present as an integral

component of the gas. The resulting

concentration of the acid is governed

by the amount of sulphur in the gas.

This concentration varies from gas to

gas and geographically within the

same type of gas.

Beyond sulfuric acid corrosion, there is

the area of chlorinated or halogenated

hydrocarbon vapor corrosion. This

type of corrosion occurs when

substances are mixed with combustion

air that will cause the formation of

hydrochloric or hydrofluoric acid when

burned. These basic substances are

found in degreasers, dry cleaning

solvents, glues, cements, paint

removers and aerosol propellants.

Specific chemicals included in this

group are trichloroethylene,

perchloroethylene, carbon

tetrachloride, methylene chloride,

methyl chloroform and refrigerants 11,

12, 21, 22 and 114.

If sufficient PPM content of these

corrosives is present, none of the

common heat exchanger materials will

hold up. The dilemma becomes

whether to place the gas heating

equipment outside of the area to be

conditioned or use equipment in the

space which does not burn a fuel such

as gas (i.e., electric or hydronic).

Units should not be installed in areas

with corrosive or inflammable

atmospheres. Locations containing

solvents or chlorinated hydrocarbons

will produce corrosive acids when

coming in contact with burner flames.

This reaction will greatly reduce the life

of the heat exchanger and may void

the warranty. For added protection

against heat exchanger corrosion,

optional 409 and 321 stainless steel

construction is available.

On units using outside air, with

entering air temperature below 40 F,

condensation of flue gas in the heat

exchanger is possible. In these cases,

stainless steel heat exchangers are

recommended. An optional 409 or 321

stainless steel heat exchanger is

recommended whenever there is an

evaporative cooler or cooling coil

upstream of the furnace section(s).

Application

Considerations

General

Outdoor duct furnaces are designed for

use in ducted applications with a

separate air handling device such as a

horizontal blower assembly. By utilizing

a separate air source, greater

application flexibility in airflow delivery

can be obtained. Multiple duct furnaces

can be used with an air handling unit to

provide zone heating.

Note: When installing duct furnaces in

parallel or in series, minimum

clearance requirements must be

considered. This clearance is required

for serviceability. Duct furnaces are

approved for blow-thru applications

only. Right-hand burner drawers are

available for parallel applications.

Contact your local Trane representative

for more information.

When used in conjunction with filters,

cooling coils and an air handler, the

duct furnace can become part of a built-

up heating and cooling system.

Outdoor heating units are designed for

make-up air or space heating

applications. These weatherproofed

units are intended for roof or slab

mounting, saving indoor space and

offering easy access for service and

maintenance. The units are typically

used in ducted applications.

Outdoor units cannot be mounted

indoors due to the flue configuration.

Filter Fan

Supply

Duct

Furnace

Cooling

Coil

Air

Handling

Unit

To Zone

No. 1

To Zone

No. 2

To Zone

No. 3

DUCT

FURN

DUCT

FURN

DUCT

FURN

12

Careful review of the job application

with respect to use, probable

contaminants within a conditioned

space and the amount of fresh air to be

brought in will help to make the proper

selection of heat exchanger material.

This review will help to eliminate

problems before they begin.

Outdoor gas heating products are used

in either make-up air or space heating

applications (constant volume or

variable air volume). These two basic

applications are discussed in detail

below.

Make-Up Air Applications

Make-up air systems provide outside

air for ventilation requirements and

replace air removed by an exhaust air

system. Typical applications include

kitchens, restaurants, manufacturing

areas, sports centers, garages and

terminals.

Local codes and ordinances frequently

specify ventilation requirements for

public places and industrial

installations. Generally accepted

industry practices are given in the

ASHRAE Handbook of Fundamentals.

Published industrial ventilation codes

are usually based on summer

ventilation conditions of a work

environment and should be reviewed

for winter operation. Exhaust

requirements should also be examined

to establish the year-round make-up

air requirement within limitations of

codes and regulations. Whenever

fresh air will be used and is present at

temperatures below 40 F, 409 stainless

steel heat exchangers are

recommended.

Space Heating Applications 

Constant Volume

Make-up air units can be used to offset

a portion of the building heat losses in

addition to supplying make-up air. This

is accomplished by heating the make-

up air beyond the required space

temperature. The additional heat

supplied above room temperature can

satisfy a portion of the space heating

requirement. The additional capacity

(Btuh) available for heating can be

calculated with the following equation:

Space Heating Capacity =

1.085 x SCFM Make-up Air x

(Max ∆T - (Troom - TO.A.))

Outdoor units using 100 percent return

air or a combination of return and

outside air are more efficient in

providing space heat than make-up air

units using 100 percent outside air at a

colder temperature.

Space Heating Applications 

Variable Air Volume

Dual duct VAV systems have one duct

to distribute cold air to those spaces

that need cooling and another to

distribute warm air to those spaces

that need heating. When separate fans

are used to handle the two duct

systems, the ductwork can be arranged

to allow simultaneous use of airside

economizers and plenum heat of

lights. The cooling unit uses return air

or cold outside air in order to save

compressor energy. The heating unit

uses only plenum heated return air.

This return air contains the rejected

heat from the lights in the building and

when recovered through the heating

unit, can lower gas heating costs.

In this mode, the dual duct VAV is not

unlike water source heat pumps or

three deck multizone air handlers, but

also has the added savings of variable

air volume.

Result  dual duct VAV is an efficient

system capable of using economizers

and heat recovery devices. Occupant

comfort is enhanced because heating

and cooling are always available to the

perimeter zones.

Application

Considerations

*Refer to Outdoor Duct Furnace Manual for specific clearances.

18

(457 mm)

AIR FLOW 18

(457 mm)

Blower

Electrical Cabinet

Duct Furnace Duct Furnace

Supply Plenum 18

(457 mm)

F*

13

Application

Considerations

General System Types

Single-Zone Staged Systems

Electronic controls generally provide

more stages of control with a higher

degree of precision in temperature

sensing and actuation of stages. A six-

Single-zone staged systems can use

multistage thermostats or ductstats for

control of heating and cooling as well

as multi-stage electronic controls.

Systems need to be sized with respect

to the heated space. Typical staged

single-zone heating is achieved with a

two-stage thermostat, delivering 50

percent of the units rated input at low

fire and 100 percent at high fire. The

thermostat is set to the desired space

temperature with a differential setting

for high and low fire. A fan time delay

relay provides fan control with a post

warm-up delay period preventing

discomfort in the space.

stage system equipped with an

electronic control system can deliver

16 percent of a units input at stage 1

(low fire), 33 percent at stage 2,

50 percent at stage 3, 66 percent at

stage 4, 84 percent at stage 5 and

100 percent at stage 6 (high fire).

Large areas may incur hot and cold

spots due to thermostat location, this

can be overcome with electronic

controls by incorporating within the

space a scheme of temperature

averaging, by locating a number of

series or series/paralleled temperature

sensors such as thermisters, rtds or

prtd type sensors, an average

temperature within the space can be

transmitted to the control system.

100%

85%

67%

50%

33%

17%

0%

Stages of Fire

Supply Fan Gas Fired Furnace

Return Air Supply Air

T = Temperature Sensor F = Fan Switch

I = Ignition System E = Electronic Control

T = Thermostat F = Fan Switch I = Ignition System

333.3 Ohms

To

Controller

Direct

To

Controller

Series/Parallel

To

Controller

Series/Parallel

To

Controller

Series

1000 Ohms 500 Ohms 500 Ohms 1000 Ohms 1000 Ohms 333.3 Ohms

1000 Ohms 1000 Ohms 333.3 Ohms 333.3 Ohms

100%

50%

0%

Stages of Fire

Supply Fan Gas Fired Furnace

Return Air Supply Air

14

Application

Considerations

Multizone Staged Systems

Multizone staged systems act on the

same basic principals as a single-zone

staged system where as each stage is

engaged with respect to demand. With

multizone systems a thermostat or

zone sensor is used for each zone. The

system must be sized to maintain

comfort levels for all zones. Zone

dampers are used for efficient

operation of multizone systems. Upon

a call for heat from either zone the

system will fire at low fire, upon a call

from both zones the system will go to

high fire. The zone dampers shall open

and close upon a call for heat from

their respective zone sensors. Typically

a discharge air thermostat or sensor is

used to maintain supply air

temperature in multizone systems.

Outside and Return Air Damper

Control

Outside and return air damper control

may be included in a staged single or

multizone system. Interlocked outside

and return air dampers with

proportional actuator control, either

electronic or electromechanical can

maintain a minimum outside air setting

and a mixed air setting. Damper

control may also include enthalpy or

pressure control.

Supply Fan Gas Fired Furnace

Return Air

Supply Air

Td = Discharge Air Temperature

Ta/b = Temperature Sensor Zone A/B

F = Fan Switch

I = Ignition System

D = Damper Actuator

Two Zone System

Zone A Zone B

Return Air Supply Air

Outside Air

100%

50%

0%

Damper

Percent

Open

T = Temperature Sensor

D = Damper Actuator

Interlocked Outside and Return Air Dampers Outside and Return Air Damper Arrangement

Outside Air Damper

Return Air Damper

15

Application

Considerations

Rooftop Make-Up Air Unit with a

Rooftop Exhaust Unit

Outside air is introduced in order to

replace or make up for exhausted air

due to commercial or industrial

processes that require exhausted air

within a space. The make up air is

heated to a comfortable level relieving

any additional load on the space

heating system. Make-up air systems

may also be configured to supplement

space heating by increasing the

discharge air temperature beyond the

required temperature for the space.

This additional heat above space

temperature can offset a portion of the

buildings heat losses. The additional

heating capacity (Btuh) can be

calculated as:

Space Heating Capacity =

1.085 x SCFM Make-Up Air x

(Max ∆T - (TROOM - TO.A.)).

Make-Up Air Systems

Typical applications for make up air

may include restaurants, kitchens,

public arenas, airport and bus

terminals, parking and maintenance

garages, manufacturing and process

areas. Make-up air and exhaust units

may be matched in size and electrically

interlocked with 100 percent outside air

introduced when the exhaust fan is

engaged. The make-up air system may

also incorporate outside and return air

and modulate the mixture based upon

building pressure typically maintaining

a slightly positive pressure within the

space in order to reduce infiltration.

The mixed air arrangement is

generally the more efficient method

due to the tempering of the outside air,

however some applications may

require 100 percent outside air due to

poor return air quality. The use of 409

or 321 stainless steel heat exchangers

is recommended whenever outside air

is used.



Supply Fan

Return Air Supply Air

Exhaust Fan

Outside Air

T = Temperature Sensor

D = Damper Actuator

P = Pressure Sensor

Exhaust Air

Inside Air

16

Application

Considerations

The basic direct digital control (DDC)

system uses a microprocessor based

controller and software to perform

system and building control functions.

The controller receives input from

sensors mounted within the system.

Based upon input data, the controller

outputs a programmed response to the

systems actuators (gas valves, fan

motors and damper motors). Inputs

may consist of temperature, pressure

or flow and can be analog or digital

signals. Output can also be analog or

digital; analog output signals are

generally 4-20 mA or 0-10 VDC and

digital outputs a relay actuation.

Direct Digital Control (DDC) Systems

The control may be located in the unit

or in the building. A personal computer

(PC) and software may be provided for

remote communication. Temperature

setpoints, night setback, time limited

cycling, safety interlock input and

system override functions may be

setup at the controller or by PC

interface via modem or direct

connection. The controller may store in

memory a number of previous cycles

of operation with date, time, sensed

temperatures, rate of fire and duration-

of-cycle information available for down

loading to a PC for report generation

and printout. With digital control,

energy use can be easily optimized for

economical operation while

maintaining comfort levels with a

higher degree of accuracy.

Unit Placement

Refer to the applicable Trane

Installation, Operation and

Maintenance literature for specific

installation instructions. Installations

must conform with local building

codes or, in the absence of local codes,

with the National Fuel Gas Code ANSI

Z223.1.

Outdoor units are designed and

certified for outdoor use only. They

may be located on the roof or at any

convenient location outside the

building to be heated. When locating

units on the roof, make certain that it is

capable of carrying the additional load

of this equipment.

Units are mounted on skids and are

suitable for curb or slab mounting. It is

recommended that the units skids be

mounted either on solid planking or

steel channels, but not on a soft tar roof

where the skids could sink and reduce

the clearance between the bottom of

the unit and the roof.

Basic DDC Control System with Heating/Cooling Rooftop Unit

Damper

Actuator Cooling Supply Fan Heating

Discharge

Air Sensor

Mixed Air

Sensor

Outside Air

Sensor

Room Sensor

Communication

Via Modem

Personal Computer

Digital Control Panel

17

Application

Considerations

Venting

The venting is an integral part of the

furnace and must not be altered in the

field. The rooftop furnaces are

equipped with a vent cap which is

designed for gravity venting. Air for

combustion enters at the base of the

vent through a protective grill, and the

design of the vent cap is such that the

products of combustion are

discharged at the upper section of the

cap. This cap is shipped in a separate

carton. It should be fastened in

position and not be altered in any way.

The proximity of the combustion air

inlet to products of combustion

discharge is designed to provide

trouble-free operation under all types

of wind conditions.

The power vented unit has a system

with the inlet and discharge grill

located in the upper section of a split-

side panel. This balanced flue design

also performs well under virtually all

wind conditions.

FM and IRI Requirements

IRI, which stands for Industrial Risk

Insurers, and FM, which stands for

Factory Mutual, are both basically

insurance companies which insure

commercial/industrial firms against a

variety of losses. Both publish

requirements which must be met by

certain equipment operating in the

facilities they are preparing to insure.

Listed below is our interpretation of

the requirements of both insurers

pertaining to heating units only to the

extent of features/controls required by

IRI and/or FM. There are a number of

additional requirements which pertain

to electrical service, details of

installation, etc., and we urge you to

obtain copies of the publications

pertaining to these details if you are

involved in a job where IRI or FM

adherence has been indicated. The

requirements detailed herein are our

interpretations of the latest

publications in our possession and we

must disclaim any responsibility for

errors due to our interpretation and/or

lack of any updated revision of these

standards. Our intent is to provide you

with an understanding of the

application of these standards and

how we believe our indirect-fired gas

heating equipment applies.

IRI Requirements

1

All input sizes require 100 percent

shutoff. This requires that any natural

gas unit, equipped with intermittent

pilot ignition, must employ a lock-

out type ignition system which will

shut off pilot gas if the pilot fails to

light at any time. This system is

required by AGA on LP gas units as

standard equipment. However, for

natural gas units, you will need to

specify fuel type L Natural Gas with

100 percent lockout.

2

All units require AGA certification or

UL listed controls. Our units are

AGA certified and meet this

requirement.

3

Models with inputs of 150,000 to

400,000 Btuh (43.9-117.1 kW) require

mechanical exhaust and a safety

interlock. For our units this means a

power vented unit.

FM Requirements

1

All units must be AGA certified or UL

listed. Our units are AGA certified.

2

The high limit control must be in a

circuit, the voltage of which does not

exceed 120 VAC. All of our high limits

would meet this requirement.

The specific requirement for an IRI or

FM gas train, while it applies to direct

and indirect-fired gas heating

equipment as well as oil-fired, comes

into play only with units having an

input in excess of 400,000 Btuh (117.1

kW). This may be one of the reasons

why the majority of gas heating

equipment manufacturers (indirect-

fired) limit their largest individual

furnace to 400,000 Btuh (117.1 kW).

Minimum/Maximum Gas

Inlet Pressures

Gas valves are suitable to a maximum

inlet pressure of 0.5 psi (14 inches

water column) on natural gas. If the

main gas supply pressure is greater

than 14 inches WC (3.5 kPa), a step

down pressure regulator must be field

installed ahead of the gas valve.

Minimum inlet pressure for natural gas

units is 6 1/2 inches W.C (1.6 kPa).

For LP (propane) gas, the minimum

inlet pressure is 11 1/2 inches WC

(2.9 kPa) and the maximum inlet

pressure is 14.0 inches WC (3.5 kPa).

18

Application

Considerations

High Pressure Regulators 

Natural Gas Only

The Trane gas heating products

contained in this catalog are designed

to operate at a pressure of 3.5-inch WC

(0.9 kPa) (water column) when firing

on natural gas. This is the manifold

pressure or that which is present at the

burner orifices. All five and six-function

valves provide a built-in pressure

regulator which is capable of reducing

supply pressures from a maximum

of 14-inch WC (3.5 kPa) (1/2 psi) down to

3.5-inch WC (0.9 kPa) on the leaving

side of the valve. The valve typically

drops about 1 1/2-inch so the

minimum supply pressure is 5-inch

WC.

Whenever supply pressures exceed

14-inch WC (3.5 kPa), a high pressure

regulator should be selected. We

supply an Equimeter regulator which

is fitted with pressure springs and

capacity orificing to meet the

requirements of each specific job. In

order to select the proper spring/orifice

combination, we need to know what

the supply pressure is on that

particular job and the input size of the

unit being ordered. More than one unit

can be run from one regulator;

however, we recommend that each

unit have its own regulator.

We require that the job supply

pressure be included on all jobs

requiring high pressure regulators

along with the unit size. The table that

follows displays the regulators range

as it pertains to inlet pressure and

MBh. NA requires the customer to

contact a local utility or an industrial

supply house.

These devices are not available from

Trane for LP gas. LP accessories must

be secured from the gas supplier or

industrial supply house.

19

Selection

Procedure

Quick Sizer Chart 1

Furnace Type (A, B) Standard Temperature Rise

Rooftop Arrangement (B, C, D, E)

20

Selection

Procedure

Quick Sizer Chart 2

Furnace Type (C, D) High Temperature Rise

Rooftop Arrangement (B, C, D, E)

21

Selection

Procedure

Quick Sizer Chart 3

Furnace Type (A, B) Low Temperature Rise

Rooftop Arrangement (G, J, K, L)

22

Selection

Procedure

Quick Sizer Chart 4

Furnace Type (C, D) High Temperature Rise

Rooftop Arrangement (G, J, K, L)

23

Selection

Procedure

Step 1

To properly select a unit, two of the

three following items must be known:

temperature rise (TR) required, cubic

feet per minute of air delivery (cfm)

required and output (Btu/h out)

required. From any two of these items

the third item can be determined, as

well as the input (Btu/h In) required by

using the following:

TR = BTU/H Out ÷ (1.085 x CFM)

CFM = BTU/H ÷ (1.085 x TR)

BTU/H Out = (CFM x 1.085) x TR

BTU/H In = BTU/H Out ÷ Efficiency

.80 or .79

(The value 1.085 represents a constant.)

With any two of the three required

values, match these requirements to a

unit with the nearest input (Btu/h),

temperature rise (TR) and airflow (cfm)

capabilities keeping in mind that:

BTU/H Out = BTU/H In x Efficiency

Refer to the Packaged Rooftop

Arrangement Reference, page 9, to

match a capacity range (Btu/h), air

delivery (cfm) and temperature rise

(TR) with a rooftop arrangement.

The top portion of Quick Sizer Charts 1,

2, 3 and 4 allows the use of

temperature rise and cfm to determine

capacity, or temperature rise and

capacity to determine cfm, or capacity

and cfm to determine temperature rise.

Follow the top chart down to the

corresponding filter and cooling range

for the selection.

Step 2

Once capacity, temperature rise and

cfm have been determined, go to the

accessory pressure losses table for the

arrangement and calculate pressure

losses for unit accessories. Add the

losses for filters, plenums, dampers,

rainhood with screen or moisture

eliminators, evaporative cooler or

cooling coil and losses due to ductwork

to determine the total esp.

Step 3A  2000 ft. Altitude and Below

Refer to the performance table for the

selection and determine rpm and bhp

for the total external static pressure

(esp). Go to the table row that most

closely matches unit capacity,

temperature rise and cfm, follow the

row out to the column that equals the

total esp for rpm and bhp values.

Step 3B  Above 2000 ft. Altitude

To correct for altitude, go to Table

PAF-1, Correction Factors for Altitude.

From this table, determine the

correction factor from temperature and

altitude for the system.

Correct the esp from ductwork to actual

esp for altitude, then add sp from

accessories as shown below. Refer to

the performance table for the selected

unit. Go to the row that most closely

matches unit capacity, temperature rise

and cfm, and follow the row out to the

column that equals the corrected actual

esp for rpm and bhp values. The bhp

value can now be corrected to actual

bhp for altitude as shown below.

Actual ESP = Duct ESP x Factor +

Access. SP

Actual BHP = Cat. BHP ÷ Factor

Corrected BTUH Input =

Catalog BTUH Input ÷ Factor

Corrected BTUH Output =

Corrected BTUH Input x Efficiency

Performance

Evaporative cooling is most commonly

used in areas where the relative

humidity is low and the dry bulb

temperatures are high. However,

cooling through evaporation can be

used in most areas.

Evaporative cooling is best utilized

whenever the wet bulb depression

(difference between dry and wet bulb

temperature) is a minimum of 15 F.

The efficiency of the evaporative cooler

is determined by a variety of factors:

geographical location, application, air

change requirements, sufficient water

supply, airflow and maintenance. In

most instances, efficiency is expected

to be between 77 percent and 88

percent. Heat gains in the distribution

system will affect the final output

temperature.

Note: For SI metric conversion, see

Table G-2 on page 10.

Figure SP-1  Zone Chart

24

Selection

Procedure

Table SP-1  Air Changes Per Minute

Zone

Type Heat Load 1 2 3 4

High Load/High Gain 3

/411

1/32

High Load/Normal Gain 1

/2 3

/411

1/3

Normal Load/High Gain 1

/2 3

/411

1/3

Normal Load/Normal Gain 1

/2 1

/2 3/41

Cooling Coils

Cooling coils are used in air handling

systems to cool and dehumidify an air

stream for comfort purposes. To reduce

the cooling load in buildings, most

applications recirculate a large

percentage of the air. Usually

recirculated air is 75 to 80 percent of

the airflow with the remainder being

outside fresh air. Some codes require

100 percent outside air, particularly for

hospitals and schools. Also many

engineers specify higher percentages

of outside air to meet the requirements

of ASHRAE Standard 62-1989

Ventilation for Acceptable Indoor Air

Quality.

1

In order to select the least expensive

coil to meet the specific performance

criteria, the following information is

required:

- Unit size

- Airflow in SCFM or ACFM and altitude

(see Fan Selection at Altitude)

- Entering air dry bulb and wet bulb

temperatures based on ratio of

outside to return air.

- Cooling load MBh (1000s Btu/h) or

leaving air wet bulb.

2

For chilled water coils, the following

additional information is required.

- Fluid type: water, ethylene glycol,

propylene glycol and percent of

mixture.

- Entering fluid temperature  F

- Leaving fluid temperature  F or rate

of flow GPM.

Chilled water catalog tables are based

on:

45 F entering water temperature

Entering air temperature of 80 F DB/67

F WB. Data is certified in accordance

with ARI Standard 410. For other than

these conditions, please consult the

factory.

Figure SP-2  Psychrometrics Chart

Use the psychrometric chart (shown in

Figure SP-2) or actual humidity

temperature readings to estimate the

leaving dry bulb temperature at the

outlet of the evaporative cooler.

Example:

Entering Dry Bulb: 95 F

Entering Wet Bulb: 75 F

Wet Bulb Depression (95 F - 75 F)

= 20 F

Effective Wet Bulb Depression

(20 F x .85) = 17 F

Leaving Dry Bulb Temperature

(95 F - 17 F) = 78 F

Leaving Wet Bulb = Entering Wet Bulb

= 75 F

Selection Method

The easiest method for selecting an

evaporative cooler is to first determine

the required number of air changes per

minute.

1

Using Figure SP-1, choose the

geographical zone in which the unit is

to be installed.

2

Determine the internal load within the

structure:

Normal Load: structures with normal

people loads, and without high internal

heat gains.

High Load: Structures with high

equipment loads (i.e. factories,

laundromats, beauty salons, restaurant

kitchens, etc.), and structures with high

occupancy (night clubs, arenas, etc.).

3

Determine whether the structure has

normal or high heat gains.

Normal Gain: Structures that have

insulated roofs or are in shaded areas.

Structures that have two or more

stories or facing directions with no sun.

High Gain: Structures that have

uninsulated roofs, unshaded areas, or

rooms that are exposed to sun.

4

Using Table SP-1, determine the

required air changes per minute based

on zone selection and the type of heat

load.

5

Finally, determine the air quantity for

the space chosen, by calculating the

volume (L x W x H). Multiply this

volume by the air changes per minute.

Example:

Structure Dimensions:

25 L x 24 W x 10 H = 6000 Ft3

Exterior Load Type: Normal

Interior Load Type: Normal

Location: Dallas, Texas  Zone 3

Air Changes Per Minute: 3/4

Evaporative Cooler Requirements:

6000 Ft3 x 3/4 Air Change/Minute =

4500 CFM Required

See the evaporative cooler

performance chart for unit size that

would best apply.

25

Table SP-2  Enthalpy of Saturated Air at

Various Wet Bulb

Temperatures

Wet BTU Wet BTU

Bulb per Bulb Per

Temp. Pound Temp. Pound

50 20.38 65 30.05

50.5 20.64 65.5 30.44

51 20.90 66 30.83

51.5 21.17 66.5 31.23

52 21.45 67 31.63

52.5 21.73 67.5 32.03

53 22.01 68 32.44

53.5 22.29 68.5 32.86

54 22.59 69 33.27

54.5 22.88 69.5 33.70

55 23.18 70 34.12

55.5 23.48 70.5 34.55

56 23.79 71 34.99

56.5 24.10 71.5 35.42

57 24.42 72 35.87

57.5 24.74 72.5 36.31

58 25.06 73 36.77

58.5 25.39 73.5 37.22

59 25.73 74 37.68

59.5 26.06 74.5 38.15

60 26.40 75 38.61

60.5 26.75 75.5 39.09

61 27.10 76 39.56

61.5 27.45 76.5 40.04

62 27.81 77 40.53

62.5 28.17 77.5 41.02

63 28.54 78 41.51

63.5 28.91 78.5 42.01

64 29.29 79 42.51

64.5 29.67 79.5 43.02

Selection

Procedure

3

For DX (refrigerant) coils the following

additional information is required:

- Refrigerant type

- Suction temperature  F

- Liquid temperature  F

- Type of circuiting desired

- Hot gas bypass required?

DX catalog tables are based on:

45 F suction temperature

Entering air temperature of 80 F DB/

67 F WB

R-22 refrigerant

100 F liquid temperature

Data is certified in accordance with

ARI Standard 410. For other than

these conditions, please consult the

factory.

4

When specifying a coil, one of the most

important pieces of information is the

airflow in SCFM. As stated in the Fan

Selection at Altitude section, SCFM

means Standard CFM or air at a

density of 0.075 lb./cu. ft. A fan must be

selected using ACFM or ACTUAL CFM.

A cooling coil or heating coil must be

selected using SCFM. Up to an altitude

of approximately 1,500 feet above sea

level, very little error would be

introduced in the selection of a cooling

coil. For altitudes above 1,500 feet

above sea level, the coil must be

selected using SCFM. The relationship

between ACFM and SCFM is shown by

the following equation:

SCFM = ACFM x (Actual Density

÷ 0.075)

The term 0.075 ÷ Actual Density is

referred to as the density correction

factor, herein called the Factor. This

factor can be found in Table PAF-1. The

previous equation can then be

rewritten as:

SCFM = (ACFM ÷ Factor)

Example: A cooling coil must be

selected at 5,000 ft. altitude. The unit

delivers 10,000 ACFM. What is the

SCFM? At 5,000 ft. altitude, the factor

from Table PAF-1 is 1.20, therefore:

SCFM = 10,000 ACFM ÷ 1.20 =

8.333 SCFM

5

The entering air temperatures, both

wet bulb and dry bulb, must also be

considered when selecting a coil. A

majority of units usually use

recirculated air with a percentage of

outside air. The cooling coil must be

selected using the mixed air

temperature entering the coil.

The following example shows how to

calculate the mixed air temperature:

25 percent outside air at 95 F DB/

75 F WB

75 percent recirculated air at 78 F DB/

67 F WB

The mixed dry bulb is simply the

proportional value between the outside

and recirculated dry bulb

temperatures.

.25 x 95 + .75 x 78 = 82.3 F

The mixed wet bulb temperatures

must be calculated using either the

humidity ratio from a psychrometric

chart or from Table SP-2, The enthalpy

of saturated air at various wet bulb

temperatures.

Using Table SP-2, the enthalpy of the

outside air at 75 F WB is 38.62 Btu/lb.

and the recirculated air at 67 F WB is

31.63 Btu/lb., the mixed enthalpy is:

.25 x 38.62 + .75 x 31.63 = 33.38 Btu/lb.

Using this value in Table SP-2, the

interpolated wet bulb temperature is

69.1 F.

So the final mixed temperatures are:

82.3 F DB/69.1 F WB

26

Table PAF-1  Correction Factors for Altitude

Altitude (Feet)

0 500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000

Temp. Barometric Pressure (In. Hg)

F 39.92 29.38 28.86 28.33 27.82 27.31 26.82 26.32 25.84 25.36 24.9 24.43 29.98

-40 0.79 0.81 0.82 0.84 0.85 0.87 0.88 0.90 0.92 0.93 0.95 0.97 0.99

0 0.87 0.88 0.90 0.92 0.93 0.95 0.97 0.99 1.00 1.02 1.04 1.06 1.08

40 0.94 0.96 0.98 1.00 1.01 1.03 1.05 1.07 1.09 1.11 1.13 1.16 1.18

 70 1.00 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.18 1.20 1.22 1.25

 80 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.18 1.20 1.22 1.25 1.27

100 1.06 1.08 1.10 1.12 1.14 1.16 1.18 1.20 1.22 1.25 1.27 1.29 1.32

120 1.90 1.11 1.13 1.16 1.18 1.20 1.22 1.24 1.27 1.29 1.31 1.34 1.37

1. Actual ESP = Duct ESP x Factor ÷ Accs. SP

2. Actual BHP = Cat. BHP ÷ Factor

3. Correct BTUH Input = Catalog BTUH Input ÷ Factor

4. Corrected BTUH Output = Corrected BTUH Input x Efficiency

Performance

Adjustment

Factors

Table PD-1  Rooftop Gas Duct Furnace Performance Data  Arrangement A

Input Output Temp. Rise Pressure Drop

Capacity 10-12 Rating Rating Deg. F CFM in. of Water Nat. Gas L.P. Gas

Furnace Type A,B/C,D BTU/Hr BTU/Hr Eff. (Deg. C) (cu. m/s) (cu. m/s) (kPa) (kPa) Inlet Inlet

Rooftop Arrangement A (kW) (kW) % Min. Max. Min. Max. Min. Max. in. in.

10 A/B 100,000 80,000 80 20 60 1,235 3,704 0.15 1.10 1/2 1/2

(29.3) (23.4) (11) (33) (0.583) (1.748) (0.04) (0.27)

15 A/B 150,000 120,000 80 20 60 1,852 5,556 0.15 1.00 1/2 1/2

(43.9) (35.1) (11) (33) (0.874) (2.622) (0.04) (0.25)

20 A/B 200,000 160,000 80 20 60 2,469 7,407 0.15 1.05 1/2 1/2

(58.6) (46.9) (11) (33) (1.165) (3.496) (0.04) (0.26)

25 A/B 250,000 200,000 80 20 60 3,086 9,259 0.15 1.08 3/4 1/2 OR 3

/4

(73.2) (58.6) (11) (33) (1.457) (4.370) (0.04) (0.27)

30 A/B 300,000 240,000 80 20 60 3,704 11,111 0.15 1.10 3/4 1/2 OR 3

/4

(87.8) (70.3) (11) (33) (1.748) (5.244) (0.04) (0.27)

35 A/B 350,000 280,000 80 20 60 4,321 12,963 0.15 1.11 3/4 1/2 OR 3

/4

(102.5) (82.0) (11) (33) (2.040) (6.119) (0.04) (0.28)

40 A/B 400,000 320,000 80 20 60 4,938 14,815 0.15 1.12 3/4 1/2 OR 3

/4

(117.1) (93.7) (11) (33) (2.331) (6.993) (0.04) (0.28)

50 A/B 500,000 400,000 80 40 120 3,086 9,269 0.30 2.16 3/4 1/2 OR 3

/4

(146.4) (117.1) (22) (67) (1.457) (4.375) (0.07) (0.54)

60 A/B 600,000 480,000 80 40 120 3,704 11,111 0.30 2.20 3/4 1/2 OR 3

/4

(175.7) (140.6) (22) (67) (1.748) (5.244) (0.07) (0.55)

70 A/B 700,000 560,000 80 40 120 4,321 12,963 0.30 2.22 3/4 1/2 OR 3

/4

(205.0) (164.0) (22) (67) (2.040) (6.119) (0.07) (0.55)

80 A/B 800,000 640,000 80 40 120 4,938 14,815 0.30 2.24 3/4 1/2 OR 3

/4

(234.3) (187.4) (22) (67) (2.331) (6.993) (0.07) (0.56)

12 A/B 1,200,000 960,000 80 60 180 4,938 14,815 0.45 3.36 3/4 1/2 OR 3

/4

(351.4) (281.1) (33) (100) (2.331) (6.993) (0.11) (0.84)

10 C/D 100,000 79,000 79 30 90 823 2,469 0.10 0.88 1/2 1/2

(29.3) (23.1) (17) (50) (0.388) (1.165) (0.02) (0.22)

15 C/D 150,000 118,500 79 30 90 1,219 3,657 0.10 0.78 1/2 1/2

(43.9) (34.7) (17) (50) (0.575) (1.726) (0.02) (0.19)

20 C/D 200,000 158,000 79 30 90 1,626 4,876 0.10 0.81 1/2 1/2

(58.6) (46.3) (17) (50) (0.767) (2.301) (0.02) (0.20)

25 C/D 250,000 197,500 79 30 90 2,032 6,096 0.10 0.85 3/4 1/2 OR 3

/4

(73.2) (57.8) (17) (50) (0.959) (2.877) (0.02) (0.21)

30 C/D 300,000 237,000 79 30 90 2,438 7,315 0.10 0.86 3/4 1/2 OR 3

/4

(87.8) (69.4) (17) (50) (1.151) (3.453) (0.02) (0.21)

35 C/D 350,000 276,500 79 30 90 2,845 8,534 0.10 0.87 3/4 1/2 OR 3

/4

(102.5) (81.0) (17) (50) (1.343) (4.028) (0.02) (0.22)

40 C/D 400,000 316,000 79 30 90 3,251 9,753 0.10 0.88 3/4 1/2 OR 3

/4

(117.1) (92.5) (17) (50) (1.534) (4.603) (0.02) (0.22)

Ratings shown are for elevations up to 2000 feet (610 m) above sea level. Above 2000 feet (610 m), input must be derated four percent for each 1000 feet (305 m)

above sea level.

Performance

Data

27

Chart PD-1  Duct Furnace Performance

Furnace Type  (A, B)

Performance

Data

Standard Temperature Rise Duct Furnace Performance

Furnace Type  (A, B)

20-60 F Rise/Furnace

80% Efficiency

Chart PD-2  Duct Furnace Performance

Furnace Type  (C, D)

High Temperature Rise Duct Furnace Performance

Furnace Type  (C, D)

60-90 F Rise/Furnace

79% Efficiency

28

Performance

Data

Table PD-2  Rooftop Gas Heating Units Performance Data  Furnace Type (A,B) Standard Temperature Rise 

Rooftop Arrangement B,C,D,E

Capacity TOTAL EXTERNAL STATIC PRESSURE (INCHES OF WATER)

Furnace TR Input Output 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

Type (F) CFM BTU/H BTU/H RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

61 1,200 100,000 80,000 575 0.16 705 0.23 825 0.31 940 0.4 1040 0.5 1135 0.6 1220 0.7 1300 0.8 1375 0.91 1440 1.02

49 1,500 655 0.26 765 0.35 870 0.44 965 0.54 1060 0.64 1150 0.75 1235 0.87 1315 0.99 1390 1.12 1460 1.24

10-A,B 37 2,000 795 0.55 890 0.65 975 0.77 1055 0.88 1130 1 1205 1.12 1280 1.25 1355 1.39 1425 1.54 1490 1.68

29 2,500 950 1.01 1030 1.12 1105 1.25 1175 1.39 1240 1.54 1305 1.68 1365 1.83 1425 1.98 1485 2.13 1545 2.29

25 3,000 1110 1.68 1175 1.82 1240 1.95 1305 2.1 1365 2.27 1420 2.44 1475 2.62 1530 2.79 1580 2.97 1635 3.14

21 3,500 1270 2.59 1330 2.77 1385 2.93 1440 3.08 1495 3.25 1550 3.43 1600 3.63 1650 3.83 1695 4.04 1745 4.25

55 2,000 150,000 120,000 685 0.44 785 0.54 880 0.63 965 0.75 1045 0.87 1120 0.98 1195 1.11 1270 1.24 1345 1.37 1415 1.52

44 2,500 805 0.78 890 0.91 970 1.04 1045 1.15 1120 1.28 1190 1.43 1255 1.57 1320 1.72 1380 1.86 1440 2.01

15-A,B 37 3,000 935 1.28 1005 1.44 1075 1.6 1140 1.75 1205 1.88 1270 2.02 1335 2.18 1390 2.35 1450 2.53 1500 2.7

32 3,500 1065 1.97 1130 2.15 1190 2.33 1250 2.52 1305 2.7 1360 2.87 1420 3.02 1475 3.17 1525 3.35 1580 3.55

28 4,000 1200 2.88 1255 3.08 1310 3.28 1365 3.49 1415 3.7 1465 3.91 1515 4.12 1565 4.3 1615 4.48 1660 4.65

25 4,500 1340 4.04 1390 4.26 1435 4.49 1485 4.72 1530 4.95

59 2,500 200,000 160,000 555 0.44 650 0.55 740 0.66 820 0.78 895 0.89 965 1.02 1035 1.14 1105 1.28 1170 1.41 1230 1.56

49 3,000 630 0.71 710 0.83 790 0.96 865 1.1 935 1.23 1000 1.37 1065 1.52 1125 1.66 1180 1.81 1240 1.96

20-A,B 37 4,000 790 1.58 855 1.72 915 1.86 975 2.03 1035 2.21 1090 2.39 1145 2.57 1200 2.76 1250 2.94 1300 3.13

29 5,000 965 2.98 1010 3.15 1060 3.32 1110 3.5 1160 3.7 1205 3.9 1255 4.12 1300 4.35 1345 4.57 1390 4.8

27 5,500 1050 3.92 1095 4.11 1135 4.3 1180 4.49 1225 4.7 1270 4.91

61 3,000 250,000 200,000 615 0.69 695 0.8 775 0.93 850 1.07 920 1.21 985 1.34 1050 1.49 1110 1.63 1170 1.78 1225 1.93

53 3,500 690 1.05 760 1.17 830 1.31 900 1.46 965 1.62 1025 1.78 1085 1.94 1140 2.11 1195 2.27 1250 2.44

25-A,B 46 4,000 770 1.53 830 1.66 895 1.81 955 1.97 1015 2.14 1070 2.32 1125 2.51 1180 2.69 1235 2.87 1285 3.06

41 4,500 855 2.13 905 2.29 960 2.44 1015 2.61 1070 2.79 1125 2.98 1175 3.19 1225 3.39 1275 3.6 1320 3.8

37 5,000 940 2.88 985 3.05 1030 3.23 1080 3.4 1130 3.59 1180 3.79 1230 4 1275 4.22 1320 4.45 1365 4.68

34 5,500 1025 3.8 1065 3.98 1110 4.17 1150 4.36 1195 4.56 1240 4.77 1285 4.98

60 3,700 300,000 240,000 655 0.73 760 0.91 860 1.11 945 1.32 1030 1.54 1110 1.76 1190 2.01 1270 2.26 1345 2.53 1415 2.81

55 4,000 690 0.89 790 1.09 885 1.28 970 1.51 1050 1.74 1125 1.98 1200 2.22 1275 2.48 1345 2.76 1415 3.05

30-A,B 44 5,000 815 1.59 895 1.85 975 2.1 1055 2.32 1125 2.58 1195 2.88 1260 3.17 1325 3.46 1385 3.75 1445 4.05

37 6,000 945 2.6 1015 2.91 1080 3.23 1150 3.53 1215 3.79 1280 4.07 1340 4.39 1400 4.74

34 6,500 1010 3.25 1075 3.58 1140 3.92 1200 4.26 1260 4.58 1320 4.86

32 7,000 1075 4 1140 4.35 1200 4.71

57 4,500 350,000 280,000 535 0.7 640 0.9 730 1.11 815 1.32 890 1.55 970 1.78 1040 2.02 1110 2.28 1175 2.55 1235 2.82

52 5,000 575 0.91 670 1.13 755 1.36 835 1.59 910 1.83 980 2.08 1050 2.33 1115 2.6 1180 2.88 1240 3.16

35-A,B 43 6,000 650 1.48 735 1.72 810 1.99 880 2.26 950 2.54 1015 2.82 1080 3.1 1140 3.39 1195 3.69 1255 4

37 7,000 735 2.25 805 2.51 875 2.81 940 3.12 1000 3.44 1060 3.76 1120 4.09 1175 4.41 1230 4.74

32 8,000 820 3.27 880 3.56 940 3.87 1000 4.21 1060 4.57 1115 4.94

30 8,500 860 3.88 920 4.18 980 4.51 1035 4.86

59 5,000 400,000 320,000 560 0.89 655 1.1 745 1.33 825 1.56 900 1.8 970 2.04 1040 2.3 1105 2.56 1170 2.84 1230 3.12

45 6,500 675 1.78 750 2.03 825 2.3 895 2.6 960 2.9 1025 3.2 1085 3.5 1145 3.8 1200 4.12 1255 4.44

40-A,B 42 7,000 715 2.19 785 2.44 855 2.73 920 3.04 985 3.36 1045 3.68 1105 4 1160 4.33 1215 4.66 1270 4.99

37 8,000 800 3.18 860 3.46 920 3.76 980 4.09 1040 4.45 1095 4.81

35 8,500 840 3.77 895 4.07 955 4.38 1015 4.72

123 3,000 500,000 400,000 645 0.73 730 0.85 805 0.99 880 1.12 950 1.26 1015 1.4 1075 1.55 1135 1.69 1195 1.84 1250 1.99

105 3,500 730 1.12 800 1.25 870 1.39 935 1.55 1000 1.71 1060 1.87 1115 2.03 1175 2.2 1225 2.36 1280 2.53

50-A,B 92 4,000 815 1.63 875 1.77 940 1.92 1000 2.09 1055 2.27 1110 2.46 1165 2.64 1220 2.82 1270 3.01 1320 3.19

82 4,500 900 2.27 955 2.43 1010 2.59 1065 2.77 1120 2.97 1170 3.17 1220 3.37 1270 3.58 1320 3.78 1365 3.99

74 5,000 990 3.07 1040 3.25 1085 3.42 1135 3.61 1185 3.81 1235 4.03 1280 4.25 1325 4.47 1370 4.7 1415 4.93

67 5,500 1080 4.05 1120 4.23 1165 4.43 1210 4.63 1255 4.84

120 3,700 600,000 480,000 700 0.82 805 0.99 900 1.2 985 1.42 1065 1.64 1145 1.87 1225 2.12 1305 2.38 1375 2.65 1450 2.94

111 4,000 740 1 840 1.18 930 1.4 1010 1.63 1090 1.86 1165 2.1 1240 2.36 1310 2.63 1385 2.91 1455 3.2

60-A,B 88 5,000 880 1.79 960 2.05 1035 2.27 1110 2.53 1180 2.82 1250 3.11 1310 3.4 1370 3.69 1430 3.99 1490 4.29

74 6,000 1025 2.95 1090 3.27 1155 3.57 1220 3.83 1285 4.11 1345 4.43 1405 4.78

68 6,500 1095 3.69 1160 4.03 1220 4.37 1280 4.67 1340 4.95

115 4,500 700,000 560,000 590 0.8 685 1.01 770 1.22 855 1.43 930 1.66 1005 1.9 1075 2.15 1140 2.41 1205 2.68 1265 2.96

103 5,000 630 1.04 720 1.27 805 1.5 880 1.74 950 1.98 1020 2.23 1090 2.49 1155 2.76 1215 3.05 1275 3.34

70-A,B 86 6,000 720 1.68 800 1.95 870 2.22 940 2.5 1005 2.78 1070 3.06 1130 3.35 1190 3.65 1245 3.96 1300 4.27

74 7,000 815 2.55 885 2.85 950 3.17 1010 3.49 1070 3.81 1130 4.13 1185 4.46 1240 4.79

65 8,000 910 3.7 970 4.03 1030 4.38 1085 4.75

118 5,000 800,000 640,000 605 0.98 695 1.21 780 1.44 860 1.67 935 1.91 1005 2.16 1070 2.42 1135 2.69 1200 2.97 1260 3.26

80-A,B 98 6,000 690 1.59 770 1.84 845 2.12 915 2.39 980 2.67 1045 2.95 1105 3.24 1165 3.53 1225 3.84 1280 4.15

84 7,000 780 2.41 850 2.7 915 3.01 980 3.33 1040 3.65 1100 3.97 1155 4.29 1210 4.62 1265 4.96

74 8,000 870 3.51 930 3.81 990 4.15 1050 4.51 1105 4.87

Notes:

1. Refer to Accessory Pressure Loss table.

2. Values are based on the Basic Packaged Unit which includes pressure drop of the duct furnace(s) and system effect of the blower module.

3. Brake horsepower (BHP) includes drive losses.

4. Unit leaving air temperature is limited to 150 F (66 C) and is equal to: Entering Air Temperature + Duct Furnace(s) Temperature Rise.

5. Total External Pressure is the sum of the units Internal accessory pressure loss(es) plus the external static pressure.

6. Ratings shown are for elevations between 0 and 2000 ft. (610 m). For unit installation in the U.S.A. above 2000 ft. (610 m), the unit input must be derated 4%

for each 1000 ft. (305 m) above sea level; refer to local codes, or in absence of local codes, refer to the National Fuel Gas Code, ANSI Standard Z223.1-1992

(N.F.P.A. No. 54), or the latest edition.

For installation in Canada, any references to deration at altitudes in excess of 2000 ft. (610 m) are to be ignored. At altitudes of 2000 to 4500 ft. (610 to 1372 m),

the unit must be derated to 90% of the normal rating, and be so marked in accordance with the C.G.A. certification.

29

Performance

Data

Table PD-3  Rooftop Gas Heating Units Performance Data  Furnace Type C,D  High Temperature Rise 

Rooftop Arrangement B,C,D,E

Capacity TOTAL EXTERNAL STATIC PRESSURE (INCHES OF WATER)

Furnace TR Input Output 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

Type (F) CFM BTU/H BTU/H RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

91 800 100,000 79,000 550 .09 710 .15 840 .22 950 .29 1045 .37 1135 .45 1210 .53 1285 .61 1355 .69 1420 .78

81 900 575 .11 730 .18 855 .25 965 .33 1065 .41 1150 .50 1230 .58 1305 .67 1375 .76 1440 .86

10-C,D 73 1,000 605 .14 745 .21 870 .29 980 .37 1080 .46 1165 .55 1245 .64 1320 .74 1390 .83 1455 .93

66 1,100 635 .17 770 .25 890 .33 995 .42 1095 .51 1180 .61 1260 .71 1335 .81 1410 .91 1475 1.01

61 1,200 670 .21 795 .29 910 .38 1015 .47 1110 .57 1195 .67 1280 .77 1355 .88 1425 .99 1490 1.10

91 1,200 150,000 118,500 580 .16 705 .23 830 .31 940 .40 1045 .50 1135 .60 1220 .70 1300 .80 1375 .91 1445 1.02

15-C,D 78 1,400 630 .23 745 .31 855 .39 960 .49 1055 .59 1150 .70 1235 .81 1315 .93 1385 1.05 1460 1.17

68 1,600 685 .31 795 .40 890 .50 985 .60 1075 .70 1160 .82 1245 .94 1325 1.07 1400 1.19 1470 1.33

61 1,800 740 .42 845 .52 935 .62 1020 .73 1100 .84 1180 .96 1260 1.09 1340 1.22 1410 1.36 1480 1.50

91 1,600 200,000 158,000 500 .19 615 .26 720 .35 815 .44 900 .54 980 .64 1055 .76 1130 .88 1200 1.00 1270 1.13

81 1,800 530 .24 640 .33 735 .42 830 .51 915 .62 990 .73 1060 .84 1130 .96 1200 1.09 1265 1.23

20-C,D 73 2,000 560 .31 665 .41 755 .50 845 .60 925 .71 1000 .83 1075 .95 1140 1.07 1205 1.20 1265 1.34

66 2,200 595 .40 695 .50 780 .60 860 .71 940 .82 1015 .94 1085 1.07 1150 1.19 1215 1.33 1270 1.47

61 2,400 635 .49 725 .60 805 .71 885 .83 955 .95 1030 1.07 1095 1.20 1160 1.34 1225 1.48 1285 1.62

91 2,000 250,000 197,500 540 .30 645 .39 740 .48 825 .58 910 .69 985 .80 1060 .92 1125 1.05 1190 1.18 1250 1.31

81 2,250 580 .39 680 .50 765 .60 850 .71 925 .82 1000 .94 1070 1.07 1140 1.20 1200 1.33 1260 1.47

25-C,D 73 2,500 625 .51 715 .63 795 .74 875 .86 945 .98 1015 1.10 1085 1.23 1150 1.37 1210 1.51 1270 1.66

66 2,750 665 .66 750 .78 830 .90 905 1.03 970 1.16 1035 1.29 1100 1.43 1160 1.57 1225 1.72 1280 1.87

61 3,000 710 .83 790 .96 865 1.10 935 1.23 1000 1.37 1065 1.51 1125 1.66 1180 1.81 1240 1.96 1295 2.12

91 2,400 300,000 237,000 585 .33 710 .47 835 .63 945 .81 1045 1.00 1140 1.20 1225 1.41 1305 1.62 1375 1.83 1445 2.05

81 2,700 625 .43 740 .58 850 .75 960 .94 1055 1.14 1150 1.36 1235 1.58 1315 1.80 1390 2.04 1460 2.27

30-C,D 73 3,000 665 .54 775 .72 875 .90 975 1.09 1070 1.30 1160 1.53 1245 1.76 1325 2.00 1395 2.25 1470 2.50

66 3,300 705 .69 815 .87 905 1.07 1000 1.27 1085 1.49 1175 1.72 1255 1.97 1335 2.22 1405 2.48 1475 2.75

61 3,600 750 .86 850 1.05 940 1.26 1025 1.47 1110 1.70 1190 1.94 1270 2.20 1345 2.46 1415 2.74 1485 3.02

91 2,800 350,000 276,500 485 .30 610 .44 720 .60 815 .77 905 .96 990 1.17 1070 1.40 1145 1.63 1215 1.87 1280 2.12

82 3,100 510 .37 625 .52 730 .69 825 .87 910 1.07 990 1.28 1070 1.51 1140 1.75 1210 2.00 1280 2.26

35-C,D 75 3,400 535 .46 645 .62 745 .79 840 .98 920 1.19 1000 1.40 1070 1.63 1140 1.88 1210 2.14 1275 2.41

69 3,700 560 .56 665 .73 760 .91 850 1.11 935 1.32 1010 1.55 1080 1.78 1145 2.03 1210 2.29 1275 2.57

64 4,000 590 .67 690 .86 780 1.05 865 1.26 945 1.48 1020 1.71 1090 1.95 1155 2.20 1220 2.47 1280 2.75

61 4,200 605 .76 705 .95 790 1.15 875 1.36 950 1.59 1025 1.82 1095 2.07 1160 2.33 1225 2.60 1285 2.88

91 3,200 400,000 316,000 500 .38 620 .53 725 .70 820 .88 905 1.08 985 1.29 1060 1.52 1130 1.76 1205 2.01 1270 2.28

81 3,600 535 .50 645 .66 740 .84 830 1.04 915 1.24 995 1.46 1065 1.69 1135 1.94 1200 2.20 1265 2.47

40-C,D 73 4,000 570 .64 670 .82 760 1.01 845 1.22 930 1.43 1005 1.66 1075 1.90 1145 2.15 1205 2.42 1265 2.69

66 4,400 605 .80 700 1.01 785 1.21 865 1.43 945 1.66 1020 1.90 1090 2.15 1155 2.41 1215 2.68 1275 2.96

61 4,800 640 1.00 730 1.22 815 1.44 890 1.67 960 1.91 1035 2.16 1100 2.42 1165 2.69 1230 2.97 1285 3.26

Notes:

1. Refer to Accessory Pressure Loss table.

2. Values are based on the Basic Packaged Unit which includes pressure drop of the duct furnace(s) and system effect of the blower module.

3. Brake horsepower (BHP) includes drive losses.

4. Unit leaving air temperature is limited to 150 F (66 C) and is equal to: Entering Air Temperature + Duct Furnace(s) Temperature Rise.

5. Total External Pressure is the sum of the units Internal accessory pressure loss(es) plus the external static pressure.

6. Ratings shown are for elevations between 0 and 2000 ft. (610 m). For unit installation in the U.S.A. above 2000 ft. (610 m), the unit input must be derated 4%

for each 1000 ft. (305 m) above sea level; refer to local codes, or in absence of local codes, refer to the National Fuel Gas Code, ANSI Standard Z223.1-1992

(N.F.P.A. No. 54), or the latest edition.

For installation in Canada, any references to deration at altitudes in excess of 2000 ft. (610 m) are to be ignored. At altitudes of 2000 to 4500 ft. (610 to 1372 m),

the unit must be derated to 90% of the normal rating, and be so marked in accordance with the C.G.A. certification.

30

Performance

Data

Table PD-4  Rooftop Gas Heating Units Accessory Pressure Loss Data  Rooftop Arrangements B,C,D,E

Pressure Loss (Inches of Water)

Rainhood Filters Supply Evaporative Return or Outside

With Throwaway Washable Pleated Air Media Air

Capacity CFM Screen Mstr.Elim. 2 1 2 1 2 Plenum 8 12 Damper

800 <.01 .01 .03 <.01 <.01 .03 .01 .02 .01 .02 .01

900 .01 .01 .03 <.01 <.01 .03 .02 .02 .02 .02 .02

1,100 .02 .02 .04 <.01 <.01 .04 .02 .03 .02 .04 .03

10 1,200 .02 .02 .05 <.01 <.01 .05 .03 .04 .03 .04 .03

1,500 .03 .04 .06 .01 .02 .07 .04 .06 .04 .07 .05

2,000 .05 .07 .09 .02 .03 .12 .07 .10 .08 .12 .09

2,500 .08 .11 .12 .03 .04 .17 .10 .15 .12 .18 .13

3,000 .11 .15 .16 .04 .06 .23 .14 .22 .17 .26 .19

3,500 .16 .21 .19 .06 .08 .30 .18 .29 .24 .35 .25

1,200 .02 .02 .05 <.01 <.01 .05 .03 .03 .03 .04 .03

1,400 .03 .03 .06 <.01 .01 .06 .03 .03 .04 .06 .04

1,600 .03 .04 .07 .01 .02 .08 .04 .04 .05 .07 .06

1,800 .04 .05 .08 .02 .02 .10 .05 .06 .06 .09 .07

15 2,000 .05 .07 .09 .02 .03 .12 .07 .07 .08 .12 .09

2,500 .08 .11 .12 .03 .04 .17 .10 .11 .12 .18 .13

3,000 .11 .15 .16 .04 .06 .23 .14 .15 .17 .26 .19

3,500 .16 .21 .19 .06 .08 .30 .18 .21 .24 .35 .25

4,000 .20 .27 .07 .11 .38 .23 .27 N/A N/A .33

4,500 .26 .34 .09 .14 .34 N/A N/A .42

1,600 .02 .02 .05 <.01 .01 .06 .03 .02 .02 .03 .03

1,800 .02 .03 .06 <.01 .01 .07 .04 .03 .02 .03 .03

2,000 .02 .03 .07 .01 .02 .08 .04 .03 .03 .04 .04

2,200 .03 .04 .08 .01 .02 .09 .05 .04 .03 .05 .05

20 2,400 .03 .05 .09 .02 .02 .11 .06 .05 .04 .06 .05

2,500 .04 .05 .09 .02 .03 .12 .07 .05 .04 .07 .06

3,000 .05 .07 .12 .03 .04 .16 .09 .07 .06 .10 .08

4,000 .09 .13 .17 .05 .07 .26 .16 .13 .11 .17 .15

5,000 .15 .20 .07 .11 .38 .23 .21 .18 .27 .23

5,500 .18 .25 .09 .13 .44 .28 .25 .22 .32 .28

2,000 .02 .03 .07 .01 .02 .08 .04 .02 .03 .04 .04

2,250 .03 .04 .08 .02 .02 .10 .05 .03 .04 .05 .05

2,500 .04 .05 .09 .02 .03 .12 .07 .04 .04 .07 .06

2,750 .04 .06 .10 .02 .03 .14 .08 .04 .05 .08 .07

25 3,000 .05 .07 .12 .03 .04 .16 .09 .05 .06 .10 .08

4,000 .09 .13 .17 .05 .07 .26 .16 .09 .11 .17 .15

4,500 .12 .16 .06 .09 .31 .19 .12 .15 .22 .19

5,000 .15 .20 .07 .11 .38 .23 .14 .18 .27 .23

5,500 .18 .25 .09 .13 .44 .28 .17 .22 .32 .28

2,400 .02 .03 .06 .01 .01 .07 .04 .02 .03 .04 .03

2,700 .02 .03 .07 .01 .02 .09 .05 .03 .03 .05 .04

3,000 .03 .04 .08 .02 .02 .10 .06 .03 .04 .06 .05

3,300 .04 .05 .09 .02 .03 .12 .07 .04 .05 .07 .06

30 3,600 .04 .06 .10 .02 .03 .14 .08 .05 .06 .09 .07

4,000 .05 .08 .12 .03 .04 .17 .10 .06 .07 .11 .08

5,000 .09 .12 .16 .04 .06 .24 .14 .09 .11 .17 .13

6,000 .12 .17 .06 .09 .33 .20 .13 .16 .24 .19

6,500 .14 .20 .07 .11 .38 .23 .16 .19 .29 .22

7,000 .17 .23 .09 .13 .43 .27 .18 .22 .33 .25

31

Performance

Data

Table PD-4 (Continued)  Rooftop Gas Heating Units Accessory Pressure Loss Data  Rooftop Arrangements B,C,D,E

Pressure Loss (Inches of Water)

Rainhood Filters Supply Evaporative Return or Outside

With Throwaway Washable Pleated Air Media Air

Capacity CFM Screen Mstr.Elim. 2 1 2 1 2 Plenum 8 12 Damper

2,800 .03 .04 .07 .01 .02 .09 .05 .02 .04 .05 .04

3,100 .03 .05 .08 .02 .02 .11 .06 .03 .04 .07 .05

3,400 .04 .06 .10 .02 .03 .13 .07 .04 .05 .08 .06

3,700 .05 .07 .11 .02 .03 .15 .08 .04 .06 .09 .07

35 4,000 .05 .08 .12 .03 .04 .17 .10 .05 .07 .11 .08

5,000 .09 .12 .16 .04 .06 .24 .14 .08 .11 .17 .13

6,000 .12 .17 .06 .09 .33 .20 .11 .16 .24 .19

7,000 .17 .23 .09 .13 .43 .27 .15 .22 .33 .25

8,000 .22 .31 .11 .16 .19 .29 .44 .33

9,000 .28 .39 .24 N/A N/A .42

3,200 .03 .04 .07 .01 .02 .09 .05 .02 .04 .06 .04

3,600 .04 .05 .09 .02 .02 .11 .06 .03 .05 .07 .05

4,000 .04 .06 .10 .02 .03 .13 .07 .04 .06 .09 .07

4,400 .05 .07 .11 .03 .04 .15 .09 .05 .07 .11 .08

40 4,800 .06 .09 .13 .03 .04 .18 .10 .05 .09 .13 .10

5,000 .07 .10 .13 .03 .05 .19 .11 .06 .09 .14 .10

6,000 .10 .14 .17 .05 .07 .26 .16 .08 .14 .20 .15

7,000 .13 .19 .07 .09 .33 .21 .11 .18 .27 .20

8,000 .17 .24 .09 .12 .42 .26 .15 .24 .36 .26

8,500 .20 .28 .10 .14 .17 .27 .41 .30

3,000 .05 .07 .12 .03 .04 .16 .09 .05 .06 .10 .08

3,500 .07 .10 .14 .04 .05 .21 .12 .07 .09 .13 .11

50 4,000 .09 .13 .17 .05 .07 .26 .16 .09 .11 .17 .15

4,500 .12 .16 .06 .09 .31 .19 .12 .15 .22 .19

5,000 .15 .20 .07 .11 .38 .23 .14 .18 .27 .23

5,500 .18 .25 .09 .13 .44 .28 .17 .22 .32 .28

3,700 .05 .07 .11 .02 .03 .15 .08 .05 .06 .09 .07

4,000 .05 .08 .12 .03 .04 .17 .10 .06 .07 .11 .08

60 5,000 .09 .12 .16 .04 .06 .24 .14 .09 .11 .17 .13

6,000 .12 .17 .06 .09 .33 .20 .13 .16 .24 .19

6,500 .14 .20 .07 .11 .38 .23 .16 .19 .29 .22

4,500 .07 .10 .14 .04 .05 .20 .12 .06 .09 .14 .11

5,000 .09 .12 .16 .04 .06 .24 .14 .08 .11 .17 .13

70 6,000 .12 .17 .06 .09 .33 .20 .11 .16 .24 .19

7,000 .17 .23 .09 .13 .43 .27 .15 .22 .33 .25

8,000 .22 .31 .11 .16 .19 .29 .44 .33

5,000 .07 .10 .13 .03 .05 .19 .11 .06 .09 .14 .10

80 6,000 .10 .14 .17 .05 .07 .26 .16 .08 .14 .20 .15

7,000 .13 .19 .07 .09 .33 .21 .11 .18 .27 .20

8,000 .17 .24 .09 .12 .42 .26 .15 .24 .36 .26

32

Performance

Data

Table PD-5  Rooftop Gas Heating Units Performance Data - Furnace Type (A,B) - Standard Temperature Rise - Rooftop Arrangement G,J

Capacity TOTAL EXTERNAL STATIC PRESSURE (INCHES OF WATER)

Furnace TR Input Output 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

Type (F) CFM BTU/H BTU/H RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

59 2,500 200,000 160,000 425 .36 495 .46 565 .55 635 .67 700 .80 760 .93 820 1.07 875 1.21 925 1.35 975 1.50

49 3,000 490 .59 540 .68 600 .80 660 .92 720 1.05 775 1.19 830 1.35 885 1.51 930 1.67 980 1.84

37 4,000 630 1.30 660 1.41 700 1.54 740 1.68 785 1.84 830 2.00 875 2.16 920 2.32 965 2.49 1005 2.68

20-A,B 29 5,000 770 2.46 795 2.59 825 2.73 850 2.88 880 3.05 915 3.24 950 3.43 990 3.63 1025 3.83 1065 4.02

25 6,000 915 4.18 940 4.34 960 4.50 980 4.66 1000 4.84 1025 5.02 1050 5.23 1080 5.44 1110 5.67 1140 5.90

23 6,500 990 5.27 1010 5.45 1030 5.62 1050 5.80 1070 5.98 1090 6.17 1110 6.37 1135 6.59 1160 6.82 1185 7.06

21 7,000 1060 6.55 1080 6.74 1100 6.93 1115 7.12 1135 7.31 1155 7.50 1175 7.71 1195 7.93 1215 8.16 1240 8.41

20 7,400 1120 7.71 1140 7.92 1155 8.12 1175 8.31 1190 8.51 1205 8.71 1225 8.92 1245 9.15 1265 9.38 1285 9.62

59 3,100 250,000 200,000 495 .62 540 .72 595 .83 655 .95 715 1.08 770 1.22 820 1.37 875 1.54 925 1.71 970 1.87

46 4,000 620 1.26 650 1.37 685 1.49 725 1.63 770 1.79 815 1.95 860 2.10 905 2.26 950 2.43 990 2.61

25-A,B 37 5,000 755 2.39 785 2.52 810 2.66 835 2.80 865 2.96 895 3.13 930 3.32 970 3.52 1005 3.72 1045 3.92

31 6,000 895 4.05 920 4.21 945 4.37 965 4.53 985 4.70 1010 4.88 1030 5.07 1060 5.27 1085 5.49 1115 5.72

26 7,000 1040 6.35 1060 6.55 1080 6.74 1100 6.92 1115 7.11 1135 7.30 1155 7.50 1170 7.70 1195 7.92 1215 8.15

25 7,500 1110 7.77 1130 7.99 1150 8.19 1165 8.39 1185 8.59 1200 8.79 1215 9.00 1235 9.21 1250 9.43 1270 9.66

60 3,700 300,000 240,000 415 .47 505 .65 590 .86 665 1.08 740 1.33 815 1.60 885 1.89 950 2.19 1010 2.51 1065 2.82

55 4,000 430 .56 520 .76 600 .97 675 1.20 745 1.45 815 1.72 880 2.02 945 2.33 1005 2.65 1065 2.99

30-A,B 37 6,000 560 1.51 630 1.79 690 2.08 750 2.38 805 2.69 860 3.01 910 3.34 960 3.68 1010 4.03 1055 4.40

28 8,000 710 3.29 760 3.64 810 4.01 860 4.40 905 4.79 950 5.19 995 6.00 1035 5.99 1075 6.41 1115 6.83

22 10,000 860 6.18 900 6.59 945 7.03 985 7.48 1025 7.95 1065 8.44 1100 8.93 1140 9.42 1175 9.92 1210 10.42

20 11,000 940 8.12 975 8.57 1015 9.04 1050 9.52 1085 10.03 1125 10.55 1160 11.08 1195 11.61 1230 12.16 1260 12.70

57 4,500 350,000 280,000 405 .58 490 .76 565 .96 640 1.19 705 1.43 765 1.68 825 1.93 880 2.19 930 2.46 975 2.74

43 6,000 500 1.22 555 1.43 615 1.66 675 1.90 735 2.16 790 2.46 845 2.78 895 3.10 945 3.43 990 3.75

35-A,B 32 8,000 645 2.70 675 2.93 715 3.20 760 3.51 805 3.83 850 4.14 895 4.45 940 4.79 985 5.15 1025 5.55

26 10,000 790 5.10 815 5.37 840 5.67 870 5.99 905 6.35 940 6.74 980 7.14 1015 7.53 1050 7.92 1085 8.31

22 12,000 935 8.66 960 8.98 980 9.31 1000 9.66 1025 10.04 1050 10.44 1080 10.87 1110 11.32 1140 11.79 1170 12.27

20 13,000 1010 10.95 1030 11.29 1050 11.64 1070 12.01 1090 12.39 1115 12.80 1140 13.24 1165 13.71 1190 14.19 1215 14.69

59 5,000 400,000 320,000 430 .73 500 .92 570 1.12 640 1.35 705 1.61 765 1.88 820 2.15 875 2.43 925 2.71 975 3.00

49 6,000 495 1.18 545 1.38 605 1.62 665 1.85 725 2.11 780 2.40 835 2.72 885 3.04 935 3.36 985 3.69

40-A,B 37 8,000 630 2.62 665 2.85 700 3.10 745 3.40 790 3.72 835 4.03 880 4.34 925 4.67 970 5.02 1010 5.41

29 10,000 775 4.96 800 5.23 825 5.51 855 5.82 885 6.16 920 6.54 960 6.93 995 7.33 1030 7.72 1070 8.11

25 12,000 920 8.42 945 8.74 965 9.07 985 9.40 1010 9.75 1030 10.14 1060 10.55 1085 10.98 1115 11.44 1145 11.92

21 14,000 1065 13.22 1085 13.60 1105 13.97 1120 14.35 1140 14.73

119 3,100 500,000 400,000 515 .66 565 .76 625 .89 680 1.01 740 1.14 790 1.29 845 1.45 895 1.61 945 1.78 990 1.95

92 4,000 640 1.34 675 1.45 715 1.59 755 1.74 805 1.90 850 2.06 895 2.21 935 2.38 980 2.56 1020 2.76

50-A,B 74 5,000 785 2.54 810 2.67 840 2.82 870 2.98 900 3.16 935 3.35 975 3.55 1010 3.74 1045 3.94 1085 4.13

61 6,000 935 4.30 955 4.46 975 4.63 1000 4.80 1020 4.98 1045 5.18 1075 5.40 1105 5.62 1135 5.86 1165 6.10

53 7,000 1080 6.76 1100 6.94 1120 7.13 1135 7.32 1155 7.52 1175 7.73 1195 7.95 1215 8.18 1240 8.42 1265 8.68

49 7,500 1155 8.28 1175 8.48 1190 8.68 1205 8.88 1225 9.08 1240 9.30 1260 9.52 1280 9.76

120 3,700 600,000 480,000 455 .55 545 .74 625 .95 700 1.19 775 1.45 845 1.73 915 2.02 975 2.33 1035 2.65 1090 2.97

111 4,000 480 .66 560 .86 640 1.09 710 1.33 780 1.59 850 1.87 915 2.18 975 2.50 1035 2.83 1090 3.16

60-A,B 74 6,000 640 1.83 700 2.12 755 2.42 810 2.73 865 3.05 915 3.38 965 3.72 1015 4.08 1065 4.45 1110 4.83

55 8,000 810 4.00 855 4.38 905 4.78 950 5.17 990 5.57 1035 5.98 1075 6.39 1115 6.81 1155 7.24 1195 7.68

44 10,000 985 7.49 1025 7.96 1065 8.45 1100 8.94 1140 9.43 1175 9.92 1210 10.42 1245 10.93 1280 11.43 1310 11.95

40 11,000 1075 9.83 1110 10.35 1145 10.87 1180 11.41 1215 11.95 1250 12.49 1280 13.04 1315 13.58 1345 14.14 1375 14.69

115 4,500 700,000 560,000 445 .67 525 .85 600 1.07 670 1.31 735 1.55 795 1.80 850 2.06 905 2.32 955 2.60 1000 2.88

86 6,000 545 1.39 610 1.63 670 1.86 725 2.12 780 2.42 835 2.73 890 3.05 940 3.38 985 3.71 1030 4.04

70-A,B 65 8,000 695 3.06 735 3.35 785 3.66 830 3.98 875 4.29 920 4.61 960 4.96 1005 5.34 1045 5.74 1085 6.16

52 10,000 850 5.75 880 6.09 915 6.46 950 6.85 990 7.25 1025 7.64 1060 8.03 1095 8.42 1130 8.82 1165 9.23

43 12,000 1005 9.74 1030 10.13 1060 10.54 1085 10.97 1115 11.43 1145 11.90 1175 12.38 1210 12.86 1240 13.33 1270 13.79

40 13,000 1085 12.30 1110 12.71 1130 13.14 1155 13.59 1185 14.08 1210 14.57

118 5,000 800,000 640,000 460 .82 535 1.01 605 1.22 670 1.47 735 1.74 790 2.01 850 2.28 900 2.56 950 2.85 995 3.14

98 6,000 525 1.31 585 1.54 645 1.77 705 2.02 760 2.30 815 2.61 870 2.93 920 3.25 965 3.58 1015 3.91

80-A,B 74 8,000 670 2.88 710 3.15 750 3.45 800 3.77 845 4.08 890 4.39 935 4.72 975 5.08 1020 5.47 1060 5.88

59 10,000 820 5.45 850 5.75 880 6.08 915 6.45 950 6.84 985 7.24 1025 7.63 1060 8.02 1095 8.41 1130 8.81

49 12,000 975 9.24 995 9.58 1020 9.95 1045 10.35 1075 10.77 1100 11.22 1130 11.69 1165 12.17 1195 12.65 1225 13.12

44 13,500 1090 13.03 1110 13.41 1130 13.81 1150 14.23 1175 14.68

161 5,500 1,200,000 960,000 530 1.16 595 1.38 660 1.61 720 1.87 780 2.17 835 2.46 885 2.76 935 3.06 985 3.37 1030 3.68

147 6,000 565 1.46 625 1.70 685 1.93 740 2.20 800 2.50 850 2.82 905 3.15 950 3.47 1000 3.80 1045 4.13

126 7,000 640 2.21 690 2.49 745 2.76 795 3.03 845 3.34 890 3.68 940 4.04 985 4.41 1030 4.79 1070 5.16

12-A,B 111 8,000 715 3.20 760 3.50 805 3.82 850 4.13 895 4.45 940 4.78 980 5.14 1025 5.54 1065 5.95 1105 6.37

88 10,000 875 6.01 905 6.37 940 6.75 980 7.15 1015 7.55 1050 7.94 1090 8.32 1125 8.72 1160 9.13 1195 9.57

74 12,000 1035 10.16 1060 10.57 1090 11.01 1120 11.47 1150 11.94 1180 12.42 1210 12.90 1240 13.36 1270 13.83 1300 14.29

68 13,000 1115 12.81 1140 13.25 1165 13.72 1190 14.20 1220 14.71

1. Refer to Accessory Pressure Loss table.

2. Values are based on the Basic Packaged Unit which includes pressure drop of the duct furnace(s) and system effect of the blower module.

3. Brake horsepower (BHP) includes drive losses.

4. Unit leaving air temperature is limited to 150 F (66 C) and is equal to: Entering Air Temperature + Duct Furnace(s) Temperature Rise.

5. Total External Pressure is the sum of the units Internal accessory pressure loss(es) plus the external static pressure.

6. Ratings shown are for elevations between 0 and 2000 ft. (610 m). For unit installation in the U.S.A. above 2000 ft. (610 m), the unit input must be derated 4% for

each 1000 ft. (305 m) above sea level; refer to local codes, or in absence of local codes, refer to the National Fuel Gas Code, ANSI Standard Z223.1-1992

(N.F.P.A. No. 54), or the latest edition.

For installation in Canada, any references to deration at altitudes in excess of 2000 ft. (610 m) are to be ignored. At altitudes of 2000 to 4500 ft. (610 to 1372 m),

the unit must be derated to 90% of the normal rating, and be so marked in accordance with the C.G.A. certification.

33

Performance

Data

Table PD-6  Rooftop Gas Heating Units Performance Data - Furnace Type (A,B) - Standard Temperature Rise - Rooftop Arrangement K,L

Capacity TOTAL EXTERNAL STATIC PRESSURE (INCHES OF WATER)

Furnace TR Input Output 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

Type (F) CFM BTU/H BTU/H RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

61 1,200 100,000 80,000 575 .16 705 .23 825 .31 940 .40 1040 .50 1135 .60 1220 .70 1300 .80 1375 .91 1440 1.02

49 1,500 655 .26 765 .35 870 .44 965 .54 1060 .64 1150 .75 1235 .87 1315 .99 1390 1.12 1460 1.24

10-A,B 37 2,000 795 .55 890 .65 975 .77 1055 .88 1130 1.00 1205 1.12 1280 1.25 1355 1.39 1425 1.54 1490 1.68

29 2,500 950 1.01 1030 1.12 1105 1.25 1175 1.39 1240 1.54 1305 1.68 1365 1.83 1425 1.98 1485 2.13 1545 2.29

25 3,000 1110 1.68 1175 1.82 1240 1.95 1305 2.10 1365 2.27 1420 2.44 1475 2.62 1530 2.79 1580 2.97 1635 3.14

55 2,000 150,000 120,000 685 .44 785 .54 880 .63 965 .75 1045 .87 1120 .98 1195 1.11 1270 1.24 1345 1.37 1415 1.52

15-A,B 44 2,500 805 .78 890 .91 970 1.04 1045 1.15 1120 1.28 1190 1.43 1255 1.57 1320 1.72 1380 1.86 1440 2.01

37 3,000 935 1.28 1005 1.44 1075 1.60 1140 1.75 1205 1.88 1270 2.02 1335 2.18 1390 2.35 1450 2.53 1500 2.70

59 2,500 200,000 160,000 425 .36 495 .46 565 .55 635 .67 700 .80 760 .93 820 1.07 875 1.21 925 1.35 975 1.50

20-A,B 49 3,000 490 .59 540 .68 600 .80 660 .92 720 1.05 775 1.19 830 1.35 885 1.51 930 1.67 980 1.84

37 4,000 630 1.30 660 1.41 700 1.54 740 1.68 785 1.84 830 2.00 875 2.16 920 2.32 965 2.49 1005 2.68

25-A,B 59 3,100 250,000 200,000 495 .62 540 .72 595 .83 655 .95 715 1.08 770 1.22 820 1.37 875 1.54 925 1.71 970 1.87

46 4,000 620 1.26 650 1.37 685 1.49 725 1.63 770 1.79 815 1.95 860 2.10 905 2.26 950 2.43 990 2.61

60 3,700 300,000 240,000 415 .47 505 .65 590 .86 665 1.08 740 1.33 815 1.60 885 1.89 950 2.19 1010 2.51 1065 2.82

30-A,B 55 4,000 430 .56 520 .76 600 .97 675 1.20 745 1.45 815 1.72 880 2.02 945 2.33 1005 2.65 1065 2.99

37 6,000 560 1.51 630 1.79 690 2.08 750 2.38 805 2.69 860 3.01 910 3.34 960 3.68 1010 4.03 1055 4.40

35-A,B 57 4,500 350,000 280,000 405 .58 490 .76 565 .96 640 1.19 705 1.43 765 1.68 825 1.93 880 2.19 930 2.46 975 2.74

43 6,000 500 1.22 555 1.43 615 1.66 675 1.90 735 2.16 790 2.46 845 2.78 895 3.10 945 3.43 990 3.75

40-A,B 59 5,000 400,000 320,000 430 .73 500 .92 570 1.12 640 1.35 705 1.61 765 1.88 820 2.15 875 2.43 925 2.71 975 3.00

49 6,000 495 1.18 545 1.38 605 1.62 665 1.85 725 2.11 780 2.40 835 2.72 885 3.04 935 3.36 985 3.69

50-A,B 119 3,100 500,000 400,000 515 .66 565 .76 625 .89 680 1.01 740 1.14 790 1.29 845 1.45 895 1.61 945 1.78 990 1.95

92 4,000 640 1.34 675 1.45 715 1.59 755 1.74 805 1.90 850 2.06 895 2.21 935 2.38 980 2.56 1020 2.76

120 3,700 600,000 480,000 455 .55 545 .74 625 .95 700 1.19 775 1.45 845 1.73 915 2.02 975 2.33 1035 2.65 1090 2.97

60-A,B 111 4,000 480 .66 560 .86 640 1.09 710 1.33 780 1.59 850 1.87 915 2.18 975 2.50 1035 2.83 1090 3.16

74 6,000 640 1.83 700 2.12 755 2.42 810 2.73 865 3.05 915 3.38 965 3.72 1015 4.08 1065 4.45 1110 4.83

70-A,B 115 4,500 700,000 560,000 445 .67 525 .85 600 1.07 670 1.31 735 1.55 795 1.80 850 2.06 905 2.32 955 2.60 1000 2.88

86 6,000 545 1.39 610 1.63 670 1.86 725 2.12 780 2.42 835 2.73 890 3.05 940 3.38 985 3.71 1030 4.04

80-A,B 118 5,000 800,000 640,000 460 .82 535 1.01 605 1.22 670 1.47 735 1.74 790 2.01 850 2.28 900 2.56 950 2.85 995 3.14

98 6,000 525 1.31 585 1.54 645 1.77 705 2.02 760 2.30 815 2.61 870 2.93 920 3.25 965 3.58 1015 3.91

Table PD-7  Rooftop Gas Heating Units Performance Data - Furnace Type C,D - High Temperature Rise - Rooftop Arrangement K,L

Capacity TOTAL EXTERNAL STATIC PRESSURE (INCHES OF WATER)

Furnace TR Input Output 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2

Type (F) CFM BTU/H BTU/H RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

91 1,600 200,000 158,000 380 .16 480 .24 565 .33 645 .42 710 .52 770 .63 830 .74 880 .86 930 .98 980 1.10

81 1,800 400 .20 495 .29 580 .39 650 .49 720 .59 780 .70 835 .82 890 .94 940 1.07 985 1.20

20-C,D 73 2,000 425 .26 510 .35 590 .45 665 .56 730 .67 790 .79 845 .91 900 1.04 950 1.17 995 1.31

66 2,200 450 .33 530 .42 605 .53 675 .64 740 .76 800 .89 855 1.02 905 1.15 955 1.28 1000 1.43

61 2,400 475 .40 550 .50 620 .61 690 .74 750 .87 810 1.00 865 1.13 915 1.27 965 1.41 1010 1.56

91 2,000 250,000 197,500 405 .24 495 .33 575 .43 650 .54 715 .65 780 .76 835 .89 890 1.01 940 1.14 985 1.28

81 2,250 435 .32 515 .41 590 .52 660 .64 725 .76 785 .88 845 1.01 895 1.14 945 1.28 995 1.42

25-C,D 73 2,500 465 .42 540 .52 610 .62 675 .75 740 .88 795 1.02 855 1.15 905 1.29 955 1.44 1000 1.58

66 2,750 500 .53 565 .64 630 .75 695 .87 755 1.02 810 1.16 865 1.31 915 1.46 965 1.62 1010 1.77

61 3,000 535 .67 595 .79 655 .90 710 1.03 770 1.17 825 1.33 875 1.49 925 1.65 975 1.81 1020 1.98

91 2,400 300,000 237,000 390 .25 510 .40 615 .60 700 .80 775 1.01 845 1.23 905 1.45 960 1.68 1010 1.92 1055 2.16

84 2,600 405 .29 515 .45 615 .65 705 .86 780 1.09 850 1.31 910 1.55 965 1.79 1020 2.04 1065 2.29

78 2,800 420 .33 520 .50 620 .70 710 .92 785 1.16 855 1.40 920 1.65 975 1.91 1025 2.16 1075 2.43

30-C,D 73 3,000 435 .38 530 .56 625 .76 710 .99 790 1.24 860 1.49 925 1.76 980 2.02 1035 2.29 1085 2.57

68 3,200 450 .44 540 .62 630 .83 715 1.06 790 1.32 865 1.59 930 1.86 985 2.14 1040 2.42 1090 2.71

64 3,400 465 .51 555 .69 640 .91 720 1.14 795 1.40 865 1.68 930 1.97 990 2.26 1045 2.56 1100 2.86

61 3,600 480 .58 565 .77 645 .99 725 1.23 800 1.49 870 1.78 935 2.08 995 2.38 1050 2.69 1105 3.00

85 3,000 350,000 276,500 385 .29 485 .46 575 .62 650 .81 715 1.00 775 1.21 835 1.44 885 1.67 935 1.90 980 2.15

80 3,200 395 .34 495 .50 580 .68 655 .87 720 1.07 780 1.29 840 1.51 890 1.75 940 2.00 985 2.25

35-C,D 75 3,400 410 .38 505 .56 585 .74 660 .94 725 1.14 785 1.36 840 1.60 895 1.84 945 2.09 990 2.35

67 3,800 430 .49 520 .68 600 .88 670 1.09 735 1.31 795 1.54 855 1.78 905 2.03 955 2.29 1000 2.57

64 4,000 445 .55 530 .74 610 .96 680 1.17 745 1.40 805 1.63 860 1.88 910 2.14 960 2.41 1005 2.68

61 4,200 460 .62 540 .81 615 1.04 685 1.26 750 1.50 810 1.74 865 1.99 915 2.25 965 2.52 1010 2.81

88 3,300 400,000 316,000 390 .34 485 .51 575 .69 650 .88 715 1.08 775 1.30 835 1.52 885 1.76 935 2.01 985 2.27

83 3,500 400 .38 495 .56 580 .75 655 .94 720 1.15 780 1.37 835 1.60 890 1.85 940 2.10 985 2.37

40-C,D 73 4,000 430 .52 515 .70 595 .92 665 1.13 730 1.36 790 1.59 850 1.83 900 2.09 950 2.35 995 2.63

65 4,500 460 .70 540 .88 615 1.11 680 1.35 745 1.60 805 1.85 860 2.10 910 2.37 960 2.65 1005 2.93

58 5,000 495 .91 565 1.11 635 1.34 700 1.60 760 1.87 820 2.14 875 2.41 925 2.70 975 2.99 1020 3.29

Notes:

1. Refer to Accessory Pressure Loss table.

2. Values are based on the Basic Packaged Unit which includes pressure drop of the duct furnace(s) and system effect of the blower module.

3. Brake horsepower (BHP) includes drive losses.

4. Unit leaving air temperature is limited to 150 F (66 C) and is equal to: Entering Air Temperature + Duct Furnace(s) Temperature Rise.

5. Total External Pressure is the sum of the units Internal accessory pressure loss(es) plus the external static pressure.

6. Ratings shown are for elevations between 0 and 2000 ft. (610 m). For unit installation in the U.S.A. above 2000 ft. (610 m), the unit input must be derated 4%

for each 1000 ft. (305 m) above sea level; refer to local codes, or in absence of local codes, refer to the National Fuel Gas Code, ANSI Standard Z223.1-1992

(N.F.P.A. No. 54), or the latest edition.

For installation in Canada, any references to deration at altitudes in excess of 2000 ft. (610 m) are to be ignored. At altitudes of 2000 to 4500 ft. (610 to 1372 m),

the unit must be derated to 90% of the normal rating, and be so marked in accordance with the C.G.A. certification.

34

Performance

Data

Table PD-8  Rooftop Gas Heating Units Accessory Pressure Loss Data  Rooftop Arrangement G,J,K,L

Pressure Loss (Inches of Water)

Rainhood Filters Supply Return or Outside

With Throwaway Washable Pleated Air Air

Capacity CFM Screen Mstr.Elim. 2 1 2 1 2 Plenum Damper

800 <.01 .01 .01 <.01 <.01 <.01 <.01 .02 .01

900 .01 .02 .01 <.01 <.01 <.01 <.01 .02 .02

1,100 .02 .02 .02 <.01 <.01 .01 <.01 .03 .03

10* 1,200 .02 .03 .02 <.01 <.01 .02 <.01 .04 .03

1,500 .03 .04 .02 <.01 <.01 .02 .01 .06 .05

2,000 .06 .07 .04 <.01 <.01 .04 .02 .10 .09

2,500 .09 .12 .05 <.01 .01 .05 .03 .15 .13

3,000 .13 .17 .06 .01 .02 .07 .04 .22 .19

3,500 .18 .23 .08 .01 .02 .09 .05 .29 .25

1,200 .02 .03 .02 <.01 <.01 .02 <.01 .03 .03

1,400 .03 .04 .02 <.01 <.01 .02 <.01 .03 .04

1,600 .04 .05 .03 <.01 <.01 .03 .01 .04 .06

1,800 .05 .06 .03 <.01 <.01 .03 .02 .06 .07

15* 2,000 .06 .07 .04 <.01 <.01 .04 .02 .07 .09

2,500 .09 .12 .05 <.01 .01 .05 .03 .11 .13

3,000 .13 .17 .06 .01 .02 .07 .04 .15 .19

3,500 .18 .23 .08 .01 .02 .09 .05 .21 .25

4,000 .23 .30 .09 .02 .03 .12 .07 .27 .33

4,500 .29 .38 .11 .02 .03 .14 .08 .34 .42

1,600 .02 .02 .03 <.01 <.01 .03 .01 .02 .03

1,800 .02 .03 .03 <.01 <.01 .03 .02 .03 .03

2,000 .02 .03 .04 <.01 <.01 .04 .02 .03 .04

2,200 .03 .04 .04 <.01 <.01 .04 .02 .04 .05

2,400 .03 .05 .05 <.01 <.01 .05 .03 .05 .05

2,500 .04 .05 .05 <.01 .01 .05 .03 .05 .06

20 3,000 .05 .07 .06 .01 .02 .07 .04 .07 .08

4,000 .09 .13 .09 .02 .03 .12 .07 .13 .15

5,000 .15 .20 .12 .03 .04 .17 .10 .21 .23

6,000 .21 .29 .16 .04 .06 .23 .14 .30 .33

6,500 .25 .34 .17 .05 .07 .26 .16 .35 .39

7,000 .29 .40 .19 .06 .08 .30 .18 .40 .45

7,400 .32 .45 .06 .09 .33 .20 .45 .50

2,000 .02 .03 .04 <.01 <.01 .04 .02 .02 .04

2,250 .03 .04 .04 <.01 <.01 .04 .02 .03 .05

2,500 .04 .05 .05 <.01 .01 .05 .03 .04 .06

2,750 .04 .06 .05 <.01 .01 .06 .03 .04 .07

25 3,000 .05 .07 .06 .01 .02 .07 .04 .05 .08

4,000 .09 .13 .09 .02 .03 .12 .07 .09 .15

5,000 .15 .20 .12 .03 .04 .17 .10 .14 .23

6,000 .21 .29 .16 .04 .06 .23 .14 .21 .33

7,000 .29 .40 .19 .06 .08 .30 .18 .28 .45

7,500 .33 .46 .07 .09 .34 .21 .32 .52

2,400 .02 .03 .02 <.01 <.01 .02 .01 .02 .03

2,600 .02 .03 .03 <.01 <.01 .03 .01 .03 .04

2,800 .03 .04 .03 <.01 <.01 .03 .01 .03 .04

3,000 .03 .04 .03 <.01 <.01 .03 .02 .03 .05

3,200 .03 .05 .03 <.01 <.01 .04 .02 .04 .05

30 3,400 .04 .06 .04 <.01 <.01 .04 .02 .04 .06

3,600 .04 .06 .04 <.01 <.01 .04 .02 .05 .07

4,000 .05 .08 .05 <.01 .01 .05 .03 .06 .08

6,000 .12 .17 .08 .02 .02 .10 .06 .13 .19

8,000 .22 .31 .12 .03 .04 .17 .10 .24 .33

10,000 .34 .48 .16 .04 .06 .24 .14 .37 .52

11,000 .41 .58 .18 .05 .08 .28 .17 .45 .63

3,000 .03 .04 .03 <.01 <.01 .03 .02 .03 .05

3,200 .03 .05 .03 <.01 <.01 .04 .02 .03 .05

3,400 .04 .06 .04 <.01 <.01 .04 .02 .04 .06

3,600 .04 .06 .04 <.01 <.01 .04 .02 .04 .07

3,800 .05 .07 .04 <.01 <.01 .05 .03 .04 .08

35 4,000 .05 .08 .05 <.01 .01 .05 .03 .05 .08

4,500 .07 .10 .05 <.01 .01 .06 .03 .06 .11

6,000 .12 .17 .08 .02 .02 .10 .06 .11 .19

8,000 .22 .31 .12 .03 .04 .17 .10 .19 .33

10,000 .34 .48 .16 .04 .06 .24 .14 .30 .52

12,000 .49 .69 .06 .09 .33 .20 .43 .75

13,000 .58 .81 .07 .11 .38 .23 .51 .88

*Available in arrangements K and L only.

Refer to Table for Cooling Coil and Chilled Water Coil Pressure Losses (Arrangement K, L). Include the coil pressure loss with the above data.

35

Performance

Data

Table PD-8 (Continued)  Rooftop Gas Heating Units Accessory Pressure Loss Data  Rooftop Arrangement G,J,K,L

Pressure Loss (Inches of Water)

Rainhood Filters Supply Return or Outside

With Throwaway Washable Pleated Air Air

Capacity CFM Screen Mstr.Elim. 2 1 2 1 2 Plenum Damper

3,300 .03 .04 .03 <.01 <.01 .03 .02 .03 .05

3,500 .03 .05 .03 <.01 <.01 .03 .02 .03 .05

4,000 .04 .06 .04 <.01 <.01 .04 .02 .04 .07

4,500 .05 .08 .05 <.01 <.01 .05 .03 .05 .08

40 5,000 .07 .10 .05 <.01 .01 .06 .03 .06 .10

6,000 .10 .14 .07 .01 .02 .08 .04 .08 .15

8,000 .17 .24 .10 .02 .03 .13 .07 .15 .26

10,000 .27 .38 .13 .03 .05 .19 .11 .23 .41

12,000 .39 .55 .17 .05 .07 .26 .16 .34 .59

14,000 .53 .75 .07 .09 .33 .21 .46 .80

3,100 .06 .08 .06 .01 .02 .08 .04 .06 .09

4,000 .09 .13 .09 .02 .03 .12 .07 .09 .15

50 5,000 .15 .20 .12 .03 .04 .17 .10 .14 .23

6,000 .21 .29 .16 .04 .06 .23 .14 .21 .33

7,000 .29 .40 .19 .06 .08 .30 .18 .28 .45

7,500 .33 .46 .07 .09 .34 .21 .32 .52

3,700 .05 .07 .04 <.01 <.01 .05 .02 .05 .07

4,000 .05 .08 .05 <.01 .01 .05 .03 .06 .08

60 6,000 .12 .17 .08 .02 .02 .10 .06 .13 .19

8,000 .22 .31 .12 .03 .04 .17 .10 .24 .33

10,000 .34 .48 .16 .04 .06 .24 .14 .37 .52

11,000 .41 .58 .18 .05 .08 .28 .17 .45 .63

4,500 .07 .10 .05 <.01 .01 .06 .03 .06 .11

6,000 .12 .17 .08 .02 .02 .10 .06 .11 .19

70 8,000 .22 .31 .12 .03 .04 .17 .10 .19 .33

10,000 .34 .48 .16 .04 .06 .24 .14 .30 .52

12,000 .49 .69 .06 .09 .33 .20 .43 .75

13,000 .58 .81 .07 .11 .38 .23 .51 .88

5,000 .07 .10 .05 <.01 .01 .06 .03 .06 .10

6,000 .10 .14 .07 .01 .02 .08 .04 .08 .15

80 8,000 .17 .24 .10 .02 .03 .13 .07 .15 .26

10,000 .27 .38 .13 .03 .05 .19 .11 .23 .41

12,000 .39 .55 .17 .05 .07 .26 .16 .34 .59

13,500 .49 .70 .06 .09 .31 .19 .43 .75

7,400 .15 .21 .09 .02 .03 .11 .06 .13 .22

8,000 .17 .24 .10 .02 .03 .13 .07 .15 .26

12 10,000 .27 .38 .13 .03 .05 .19 .11 .23 .41

12,000 .39 .55 .17 .05 .07 .26 .16 .34 .59

13,000 .46 .65 .19 .06 .08 .30 .18 .40 .69

Note: Refer to Table for Cooling Coil and Chilled Water Coil Pressure Losses. (Rooftop Arrangements K,L). Include the coil pressure loss with the above data.

36

Performance

Data

Table PD-9  DX Cooling Coil Performance Data (Ref. R-22)  Rooftop Arrangements K, L

Capacity based on 95 F EDB, 74 F EWB, 45 F Sat. Suction, 100 F Liquid

Number of Rows

Air Face Fin 4 6

Unit Flow Velocity Spacing Capacity L.A.T. A.P.D. WT. Capacity L.A.T. A.P.D. WT.

Capacity (SCFM) (FPM) (FPF) (MBH) (DB/WB) In. W.C. (LBS) (MBH) (DB/WB) In. W.C. (LBS)

10,15 1200 240 *96 62 84

*120 65 89

144 77.0 55 / 55 0.16 70 87.1 52 / 52 0.23 95

1500 301 96 75.5 62 / 60 0.20 62 84

*120 83.8 59 / 58 0.22 65 97.8 55 / 55 0.32 89

144 90.3 57 / 56 0.23 70 103.8 53 / 53 0.35 95

2000 401 96 89.5 64 / 62 0.33 62 110.2 59 / 58 0.49 84

120 100.3 61 / 60 0.35 65 121.6 57 / 56 0.52 89

144 109.0 59 / 58 0.37 70 130.6 55 / 55 0.55 95

2500 501 96 100.8 66 / 63 0.46 62 127.7 61 / 60 0.68 84

120 113.7 63 / 61 0.49 65 142.5 58 / 58 0.73 89

144 124.5 61 / 60 0.52 70 154.5 56 / 56 0.78 95

3000 601 96 110.2 68 / 64 0.59 62 142.9 62 / 61 0.88 84

120 124.9 65 / 63 0.64 65 161.1 59 / 59 0.94 89

144 139.2 62 / 61 0.66 70 176.0 57 / 57 1.01 95

20,25,50 1600 217 *96 91.1 59 / 58 0.11 84 115

*120 99.5 56 / 56 0.12 89 122

144 106.4 54 / 54 0.13 95 120.8 51 / 51 0.20 130

2000 271 96 105.3 61 / 59 0.17 84 129.3 55 / 55 0.25 115

120 117.2 58 / 57 0.18 89 138.7 53 / 53 0.27 122

144 126.6 56 / 55 0.20 95 145.3 52 / 52 0.29 130

3000 407 96 136.1 64 / 61 0.33 84 171.4 58 / 57 0.50 115

120 154.4 61 / 59 0.36 89 186.6 56 / 56 0.54 122

144 169.8 58 / 58 0.38 95 198.1 54 / 54 0.57 130

4000 542 96 160.0 66 / 63 0.51 84 204.4 61 / 60 0.77 115

120 184.1 63 / 61 0.55 89 224.8 58 / 58 0.82 122

144 205.2 61 / 59 0.59 95 243.3 56 / 56 0.87 130

4400 596 96 168.6 67 / 64 0.58 84 215.7 62 / 60 0.87 115

120 194.5 64 / 62 0.63 89 238.1 59 / 59 0.94 122

144 217.7 61 / 60 0.67 95 261.2 57 / 57 1.00 130

30,35,60, 2400 246 96 134.9 59 / 58 0.14 105 159.5 55 / 54 0.21 145

70 120 148.7 57 / 56 0.15 112 169.1 53 / 53 0.23 155

144 159.0 55 / 54 0.17 119 176.9 51 / 51 0.24 166

3000 307 96 156.2 61 / 59 0.21 105 186.3 56 / 56 0.32 145

120 173.6 58 / 57 0.23 112 201.5 54 / 54 0.34 155

144 187.2 56 / 56 0.24 119 213.6 52 / 52 0.36 166

4000 410 96 185.7 64 / 61 0.34 105 228.1 58 / 58 0.51 145

120 208.6 61 / 59 0.36 112 251.1 56 / 55 0.54 155

144 227.3 58 / 58 0.39 119 269.5 54 / 54 0.58 166

5000 512 96 209.8 66 / 62 0.47 105 264.7 60 / 59 0.71 145

120 237.6 63 / 61 0.51 112 294.9 57 / 57 0.76 155

144 260.7 60 / 59 0.55 119 319.7 55 / 55 0.81 166

5700 584 96 224.3 67 / 63 0.57 105 287.5 61 / 60 0.85 145

120 255.0 64 / 62 0.61 112 322.7 58 / 58 0.91 155

144 281.8 61 / 60 0.65 119 352.0 56 / 56 0.97 166

40,80 3300 304 96 173.1 61 / 59 0.21 115 207.5 56 / 55 0.31 158

120 191.6 58 / 57 0.22 122 224.7 54 / 54 0.33 170

144 205.9 56 / 56 0.24 130 237.6 52 / 52 0.36 182

4000 369 96 194.3 63 / 60 0.29 115 238.6 57 / 57 0.43 158

120 216.5 60 / 58 0.31 122 260.6 55 / 55 0.46 170

144 234.1 58 / 57 0.33 130 277.7 53 / 53 0.49 182

5000 461 96 219.9 65 / 62 0.40 115 277.9 59 / 58 0.60 158

120 246.8 62 / 60 0.43 122 306.9 56 / 56 0.65 170

144 271.9 59 / 58 0.46 130 330.3 54 / 54 0.69 182

6000 553 96 241.3 66 / 63 0.53 115 312.4 60 / 59 0.79 158

120 273.5 63 / 61 0.56 122 348.2 58 / 57 0.85 170

144 307.7 61 / 59 0.60 130 377.9 56 / 55 0.91 182

6300 581 96 247.1 67 / 63 0.56 115 321.9 61 / 60 0.84 158

120 281.7 64 / 62 0.60 122 359.7 58 / 57 0.91 170

144 317.7 61 / 60 0.64 130 391.3 56 / 56 0.97 182

Conversions:

2119 SCFM = 1 m/s

196.8 FPM = 1 m/s

3.412 MBH = 1 kW

(F-32) 5/9 = C

1 In. W.C. = 248.8 Pa

1 LB. = 0.453 kg

Notes:

1.) Data certified in accordance with ARI Standard 410.

2.) Capacity based on 95 F EDB, 74 F EWB, 45 F Sat. Suction, 100 F Liquid.

3.) Weight listed is the total weight of the dry coil.

4.) Coils denoted by an asterisk ( * ) require special pricing; consult product marketing for special coil requirements and pricing.

37

Performance

Data

Table PD-10  DX Cooling Coil Performance Data (Ref. R-22)  Rooftop Arrangements K, L

Capacity based on 80 F EDB, 67 F EWB, 45 F Sat. Suction, 100 F Liquid

Number of Rows

Air Face Fin 4 6

Unit Flow Velocity Spacing Capacity L.A.T. A.P.D. WT. Capacity L.A.T. A.P.D. WT.

Capacity (SCFM) (FPM) (FPF) (MBH) (DB/WB) In. W.C. (LBS) (MBH) (DB/WB) In. W.C. (LBS)

10,15 1200 240 *96 62 84

*120 65 89

*144 70 95

1500 301 *96 62 84

*120 65 89

*144 58.6 55 / 54 0.23 70 95

2000 401 96 57.4 60 / 58 0.33 62 68.7 57 / 56 0.48 84

120 64.9 58 / 57 0.35 65 80.4 54 / 54 0.52 89

144 71.3 56 / 56 0.37 70 84.8 53 / 53 0.55 95

2500 501 96 64.9 61 / 59 0.46 62 79.5 58 / 57 0.67 84

120 74.1 59 / 58 0.49 65 89.9 56 / 56 0.71 89

144 82.0 57 / 57 0.52 70 97.4 55 / 54 0.76 95

3000 601 96 71.3 62 / 60 0.59 62 89.8 59 / 58 0.87 84

120 82.0 60 / 59 0.63 65 101.2 57 / 56 0.93 89

144 91.3 58 / 57 0.67 70 111.1 55 / 55 1.00 95

20,25,50 1600 217 *96 84 115

*120 89 122

*144 95 79.8 50 / 50 0.19 130

2000 271 *96 84 115

*120 89 122

144 82.2 54 / 54 0.20 95 97.7 51 / 51 0.29 130

3000 407 96 88.2 59 / 58 0.33 84 112.0 56 / 55 0.50 115

120 97.7 58 / 57 0.36 89 123.1 54 / 54 0.53 122

144 107.5 56 / 56 0.38 95 131.8 53 / 53 0.57 130

4000 542 96 101.3 61 / 59 0.51 84 134.3 57 / 56 0.77 115

120 116.3 59 / 58 0.54 89 149.4 55 / 55 0.82 122

144 130.5 57 / 57 0.58 95 161.7 54 / 54 0.87 130

4400 596 96 105.6 62 / 60 0.58 84 142.1 58 / 57 0.87 115

120 123.1 60 / 58 0.62 89 158.7 56 / 55 0.94 122

144 138.6 58 / 57 0.66 95 172.3 55 / 54 1.00 130

30,35,60, 2400 246 *96 105 145

70 *120 112 155

144 103.8 53 / 53 0.16 119 119.4 50 / 50 0.25 166

3000 307 *96 100.9 58 / 56 0.21 105 145

*120 112.9 56 / 55 0.23 112 155

144 122.5 54 / 54 0.24 119 141.9 51 / 51 0.36 166

4000 410 96 120.4 59 / 58 0.34 105 151.4 55 / 55 0.51 145

120 136.3 57 / 56 0.36 112 164.4 54 / 54 0.54 155

144 149.7 56 / 55 0.39 119 174.3 53 / 53 0.58 166

5000 512 96 136.6 60 / 59 0.47 105 172.9 57 / 56 0.71 145

120 155.9 58 / 57 0.51 112 188.8 55 / 55 0.76 155

144 172.9 57 / 56 0.54 119 204.6 54 / 54 0.80 166

5700 584 96 146.4 61 / 59 0.57 105 185.7 58 / 57 0.85 145

120 168.0 59 / 58 0.61 112 205.5 56 / 55 0.90 155

144 187.2 57 / 57 0.65 119 225.4 54 / 54 0.96 166

40,80 3300 304 *96 113.2 57 / 56 0.21 115 158

*120 126.2 55 / 55 0.22 122 170

144 136.5 54 / 54 0.24 130 155.2 51 / 51 0.36 182

4000 369 96 127.4 58 / 57 0.29 115 156.7 55 / 54 0.43 158

120 143.1 56 / 56 0.31 122 168.7 53 / 53 0.46 170

144 155.9 55 / 54 0.33 130 179.8 52 / 52 0.48 182

5000 461 96 144.9 60 / 58 0.40 115 179.0 56 / 56 0.60 158

120 164.1 58 / 57 0.43 122 197.6 55 / 54 0.64 170

144 180.2 56 / 55 0.46 130 213.9 53 / 53 0.68 182

6000 553 96 159.7 61 / 59 0.53 115 199.4 57 / 56 0.79 158

120 182.0 59 / 58 0.57 122 224.5 55 / 55 0.84 170

144 201.1 57 / 56 0.61 130 245.1 54 / 54 0.90 182

6300 581 96 163.8 61 / 59 0.56 115 205.6 58 / 57 0.84 158

120 186.9 59 / 58 0.61 122 232.1 56 / 55 0.90 170

144 206.9 57 / 57 0.65 130 253.9 54 / 54 0.96 182

Conversions:

2119 SCFM = 1 m/s

196.8 FPM = 1 m/s

3.412 MBH = 1 kW

(F-32) 5/9 = C

1 In. W.C. = 248.8 Pa

1 LB. = 0.453 kg

Notes:

1.) Data certified in accordance with ARI Standard 410.

2.) Capacity based on 80 F EDB, 67 F EWB, 45 F Sat. Suction, 100 F Liquid.

3.) Weight listed is the total weight of the dry coil.

4.) Coils denoted by an asterisk ( * ) require special pricing; consult product marketing for special coil requirements and pricing.

38

Performance

Data

Table PD-11  Standard Conditions and Specifications  Refrigerant DX Coil

CONDITIONS

Elevation 0 Ft.

Entering Air Temperature DB: 80 F 95

Entering Air Temperature WB: 67 F 74

Suction Temperature: 45 F 45

Liquid Temperature: 100 F 100

Fouling Factor: 0 HR x FT2 x F/BTU

SPECIFICATIONS

Coil Type: FD  Staggered Tube Pattern

Tube Size: 1/2 O.D. x 0.016 TWT Copper

Row Sizes: 4,6

Fin Type: DE Optional DH

Fin Size: 0.0055 Aluminum

Fin Spacing: Standard  96, 120, 144 Fins/Ft.

Optional  72 thru 180 Fins/Ft.

Circuiting: Standard  Single

Optional  Dual:

a) Intertwined

b) Face-Split

Turbulators: No

DIMENSIONAL DATA LISTING

Unit Size Finned Width Fixed Finned Length

10, 15 30.00 23.00

20, 25, 50 30.00 34.00

30, 35, 60, 70 30.00 45.00

40, 80 30.00 50.00

Note:

1. Above specification is for standard coil with standard fin spacing. Specify fin spacing and dual

circuiting.

2. Special coils  contact Product Marketing.

3. Every order requires a coil selection.

39

Performance

Data

Table PD-12  Chilled Water Coil Performance Data  Rooftop Arrangements K, L

Capacity based on 95 F EDB, 74 F EWB, 45 EWT, 70 GPM

Number of Rows

Air Face Fin 4 6

Unit Flow Velocity Spacing Capacity L.A.T. A.P.D. WT. Capacity L.A.T. A.P.D. WT.

Capacity (SCFM) (FPM) (FPF) (MBH) (DB/WB) In. W.C. (LBS) (MBH) (DB/WB) In. W.C. (LBS)

10,15 960 200 96 63.4 56 / 54 0.08 62 74.1 50 / 50 0.12 84

120 68.4 53 / 52 0.09 65 77.7 49 / 49 0.14 89

144 72.1 51 / 51 0.11 70 80.0 48 / 47 0.16 95

1600 334 96 89.0 60 / 58 0.18 62 109.1 54 / 53 0.28 84

120 97.3 58 / 56 0.22 65 116.4 52 / 52 0.32 89

144 103.8 55 / 55 0.24 70 121.8 51 / 50 0.37 95

2900 605 96 120.6 66 / 63 0.47 62 156.0 60 / 59 0.70 84

120 134.4 64 / 61 0.52 65 170.7 58 / 57 0.78 89

144 145.0 61 / 60 0.60 70 181.6 56 / 56 0.90 95

20,25,50 1800 254 96 109.8 58 / 56 0.12 84 131.2 52 / 52 0.18 115

120 119.0 55 / 54 0.14 89 138.6 50 / 50 0.21 122

144 126.3 53 / 53 0.16 95 143.9 49 / 49 0.24 130

3000 424 96 148.1 63 / 60 0.27 84 185.5 57 / 56 0.40 115

120 163.0 60 / 58 0.31 89 199.9 55 / 54 0.46 122

144 174.9 58 / 57 0.35 95 210.8 53 / 53 0.52 130

4300 607 96 175.1 67 / 63 0.47 84 226.1 61 / 59 0.70 115

120 195.3 64 / 61 0.52 89 247.5 58 / 57 0.78 122

144 210.8 62 / 60 0.60 95 263.2 56 / 56 0.90 130

30,35,60, 1900 203 96 123.5 56 / 55 0.08 105 144.6 51 / 50 0.12 145

70 120 133.2 54 / 53 0.09 112 151.8 49 / 49 0.14 155

144 140.5 52 / 51 0.11 119 156.7 48 / 48 0.17 166

3200 341 96 172.1 61 / 59 0.19 105 211.2 55 / 54 0.29 145

120 188.1 58 / 57 0.22 112 225.7 53 / 53 0.34 155

144 200.8 56 / 55 0.25 119 236.7 51 / 51 0.38 166

4500 480 96 205.0 65 / 61 0.33 105 258.8 59 / 57 0.49 145

120 226.7 62 / 60 0.37 112 281.0 56 / 56 0.55 155

144 243.8 60 / 58 0.42 119 297.4 55 / 54 0.63 166

5700 608 96 227.8 67 / 63 0.46 105 292.9 61 / 59 0.69 145

120 253.7 64 / 62 0.52 112 320.4 59 / 58 0.78 155

144 273.7 62 / 61 0.59 119 340.8 57 / 57 0.89 166

40,80 2100 202 96 136.2 56 / 55 0.08 115 159.5 51 / 51 0.12 158

120 146.9 54 / 53 0.09 122 167.5 49 / 49 0.14 170

144 155.0 52 / 51 0.11 130 172.9 48 / 48 0.16 182

3500 336 96 188.4 61 / 59 0.19 115 230.8 55 / 54 0.28 158

120 205.7 58 / 57 0.22 122 246.5 53 / 53 0.33 170

144 219.6 56 / 55 0.25 130 258.6 51 / 51 0.37 182

4900 470 96 223.8 64 / 61 0.32 115 281.9 59 / 57 0.47 158

120 247.4 62 / 60 0.36 122 305.8 56 / 56 0.54 170

144 265.9 60 / 58 0.41 130 323.6 55 / 54 0.61 182

6300 605 96 250.4 67 / 63 0.46 115 321.3 61 / 60 0.68 158

120 278.8 64 / 62 0.51 122 351.4 59 / 58 0.77 170

144 300.7 62 / 61 0.59 130 373.6 57 / 57 0.89 182

Conversions:

2119 SCFM = 1 m/s

196.8 FPM = 1 m/s

3.412 MBH = 1 kW

(F-32) 5/9 = C

1 In. W.C. = 248.8 Pa

1 LB. = 0.453 kg

Notes:

1.) Data certified in accordance with ARI Standard 410.

2.) Capacity based on 95 F EDB, 74 F EWB, 45 F EWT, 70 GPM.

3.) Weight listed is the total weight of the dry coil.

4.) Contact product marketing for special coil requirements.

40

Table PD-13  Chilled Water Coil Performance Data  Rooftop Arrangements K, L

Capacity based on 80 F EDB, 67 F EWB, 45 EWT, 70 GPM

Number of Rows

Air Face Fin 4 6

Unit Flow Velocity Spacing Capacity L.A.T. A.P.D. WT. Capacity L.A.T. A.P.D. WT.

Capacity (SCFM) (FPM) (FPF) (MBH) (DB/WB) In. W.C. (LBS) (MBH) (DB/WB) In. W.C. (LBS)

10,15 960 200 96 44.6 53 / 52 0.08 62 52.0 49 / 49 0.12 84

120 48.1 51 / 50 0.09 65 54.5 48 / 47 0.14 89

144 50.6 49 / 49 0.11 70 56.1 47 / 47 0.16 95

1600 334 96 62.8 56 / 54 0.18 62 76.9 52 / 51 0.28 84

120 68.7 54 / 53 0.22 65 82.0 50 / 50 0.32 89

144 73.3 52 / 52 0.24 70 85.7 49 / 49 0.37 95

2900 605 96 85.6 60 / 58 0.47 62 110.5 56 / 55 0.70 84

120 95.3 58 / 57 0.53 65 120.7 54 / 53 0.79 89

144 102.7 57 / 56 0.60 70 128.2 53 / 52 0.90 95

20,25,50 1800 254 96 77.4 54 / 53 0.12 84 92.3 50 / 50 0.18 115

120 83.9 52 / 52 0.14 89 97.5 49 / 49 0.21 122

144 89.0 51 / 50 0.16 95 101.2 48 / 48 0.24 130

3000 424 96 104.9 58 / 56 0.27 84 131.0 53 / 53 0.40 115

120 115.5 56 / 55 0.31 89 141.2 52 / 51 0.47 122

144 123.7 54 / 54 0.35 95 148.6 51 / 50 0.53 130

4300 607 96 124.5 60 / 58 0.47 84 160.1 56 / 55 0.70 115

120 138.4 58 / 57 0.53 89 174.9 54 / 54 0.79 122

144 149.2 57 / 56 0.60 95 185.9 53 / 53 0.90 130

30,35,60, 1900 203 96 86.9 53 / 52 0.08 105 101.6 49 / 49 0.12 145

70 120 93.7 51 / 50 0.09 112 106.6 48 / 48 0.14 155

144 98.8 50 / 49 0.11 119 110.0 47 / 47 0.17 166

3200 341 96 121.7 56 / 55 0.19 105 149.1 52 / 52 0.29 145

120 133.0 54 / 53 0.22 112 159.3 51 / 50 0.34 155

144 141.9 53 / 52 0.25 119 166.8 49 / 49 0.38 166

4500 480 96 145.5 59 / 57 0.33 105 183.3 55 / 54 0.49 145

120 160.6 57 / 56 0.37 112 198.5 53 / 53 0.56 155

144 172.5 55 / 55 0.42 119 209.9 52 / 52 0.63 166

5700 608 96 161.7 61 / 58 0.47 105 207.3 56 / 55 0.70 145

120 179.8 59 / 57 0.53 112 226.6 55 / 54 0.79 155

144 193.8 57 / 56 0.60 119 240.7 53 / 53 0.90 166

40,80 2100 202 96 95.9 53 / 52 0.08 115 112.1 49 / 49 0.12 158

120 103.4 51 / 51 0.09 122 117.7 48 / 48 0.14 170

144 109.0 50 / 49 0.11 130 121.5 47 / 47 0.16 182

3500 336 96 133.3 56 / 55 0.19 115 162.9 52 / 52 0.28 158

120 145.5 54 / 53 0.22 122 174.0 51 / 50 0.33 170

144 155.2 53 / 52 0.25 130 182.2 49 / 49 0.37 182

4900 470 96 158.9 59 / 57 0.32 115 199.6 55 / 54 0.47 158

120 175.2 57 / 56 0.36 122 216.1 53 / 53 0.54 170

144 188.1 55 / 55 0.41 130 228.4 52 / 52 0.61 182

6300 605 96 177.7 61 / 58 0.47 115 227.4 56 / 55 0.69 158

120 197.5 59 / 57 0.52 122 248.5 55 / 54 0.78 170

144 212.8 57 / 56 0.59 130 263.9 54 / 53 0.89 182

Conversions:

2119 SCFM = 1 m/s

196.8 FPM = 1 m/s

3.412 MBH = 1 kW

(F-32) 5/9 = C

1 In. W.C. = 248.8 Pa

1 LB. = 0.453 kg

Notes:

1.) Data certified in accordance with ARI Standard 410.

2.) Capacity based on 80 F EDB, 67 F EWB, 45 F EWT. 70 GPM.

3.) Weight listed is the total weight of the dry coil.

4.) Contact product marketing for special coil requirements.

Performance

Data

41

Performance

Data

Table PD-14  Standard Conditions and Specifications  Chilled Water Coil

CONDITIONS

Elevation 0 Ft.

Entering Air Temperature DB: 80 F 95

Entering Air Temperature WB: 67 F 78

Entering Water Temperature: 45 F 45

Water Flow Rate: 70 GPM 70 GPM

Tube Velocity: 4 Ft./Sec.

Fouling Factor: 0 HR x FT2 x F/BTU

SPECIFICATIONS

Coil Type: W  Full Row Serpentine

Tube Size: 5/8 O.D. x 0.024 TWT Copper

Row Sizes: 4,6

Fin Type: Prima Flo

Fin Size: 0.0075 Aluminum

Fin Spacing: Standard  96, 120, 144 Fins/Ft.

Optional  80 thru 168 Fins/Ft.

Circuiting: Single Circuit

Drainable: Yes

Turbulators: No

DIMENSIONAL DATA LISTING

Unit Size Finned Width Fixed Finned Length

10, 15 30.00 23.00

20, 25, 50 30.00 34.00

30, 35, 60, 70 30.00 45.00

40, 80 30.00 50.00

Note:

1. Above specification is for standard coil with standard fin spacing.

2. Special coils  contact Product Marketing.

3. Every order requires a coil selection.

Table PD-15  Evaporative Cooling Performance Data and Pressure Drop  Rooftop Arrangements D,E

8 Saturation 12 Saturation Pressure Drop (1) (1)

CFM Efficiency Efficiency 8 or 12 Deep Media in. of Water A Unit Shipping Operating

(cu. m/s) (cu. m/s) Range Range Face Area Size (KPa) (KPa) Width Wt. Wt.

Unit Size Min. Max. Min. Max. Min. Max. Ft.2

(m2

) In. (mm) Min. Max. In. (mm) lb. (kg) lb. (kg)

10, 15 800 4,500 78 88 89 92 7.01 31 x 32 9/16 0.03 0.23 32 3/4137 301

(0.378) (2.124) (0.65) (787) (827) (0.01) (0.06) (832) (62) (136)

20, 25, 50 1,600 5,500 77 88 88 92 9.38 31 x 43 9/16 0.03 0.20 43 3/4166 386

(0.755) (2.596) (0.87) (787) (1106) (0.01) (0.05) (1111) (75) (175)

30, 35, 60, 70 2,400 8,500 77 86 88 92 11.75 31 x 54 9/16 0.05 0.30 54 3/4192 468

(1.133) (4.012) (1.09) (787) (1386) (0.01) (0.07) (1391) (87) (212)

40, 80 3,200 8,500 77 86 87 92 12.92 31 x 60 0.07 0.28 60 1/4206 509

(1.510) (4.012) (1.20) (787) (1524) (0.02) (0.07) (1530) (93) (231)

Note:

1. These weights are for evaporative cooler only.

CELdek® Evaporative Media

The Trane Evaporative Cooler uses

high efficiency CELdek® media.

CELdek® is made from a special

cellulose paper, impregnated with

insoluble anti-rot salts and rigidifying

saturants. The cross fluted design of

the pads induces high-turbulent

mixing of air and water for optimum

heat and moisture transfer. The Trane

evaporative coolers are standard with

eight-inch deep media which produce

high efficiency and high face

velocities, along with a two-inch

distribution pad to disperses the water

evenly over the pads. We offer an

optional 12-inch deep media (see chart

at right for efficiencies).

Chart PD-3  Evaporative Cooler Efficiency/A.P.D. Chart

42

Electrical

Data

Rooftop Gas Heating Units  Motor Electrical Data

Voltage 1/2 HP 3/4 HP 1 HP 1 1/2 HP 2 HP 3 HP 5 HP 7 1/2 HP 10 HP 15 HP

115/60/1 ODP 7.2 10.9 13.4 18.0 26.0 33.0 NA NA NA NA

208/60/1 ODP 4.3 6.0 6.7 9.3 11.5 16.5 NA NA NA NA

230/60/1 ODP 4.3 5.5 6.7 9.0 13.0 16.5 NA NA NA NA

208/60/3 ODP 2.8 2.6 3.2 4.8 6.2 8.4 12.2 24.0 28.0 44.9

230/60/3 ODP 2.8 2.6 3.2 4.8 6.2 8.4 12.2 21.6 26.6 40.6

460/60/3 ODP 1.4 1.3 1.6 2.4 3.1 4.2 6.1 10.8 13.3 20.3

575/60/3 ODP 1.1 1.4 1.5 1.9 2.5 3.6 5.3 8.6 10.6 15.6

115/60/1 TE 9.0 11.4 13.6 17.6 24.6 34.0 NA NA NA NA

208/60/1 TE 3.9 4.5 6.8 8.0 12.3 17.0 NA NA NA NA

230/60/1 TE 4.5 5.7 6.8 8.8 12.3 17.0 NA NA NA NA

208/60/3 TE 2.1 2.8 3.4 4.8 6.4 9.4 14.0 21.8 28.7 42.6

230/60/3 TE 2.2 2.8 3.6 4.9 6.4 9.2 13.0 20.4 26.4 28.4

460/60/3 TE 1.1 1.4 1.8 2.4 3.2 4.6 6.5 10.2 13.2 19.2

575/60/3 TE 0.9 1.3 1.7 1.9 2.6 3.6 5.1 7.6 9.6 14.4

115/60/1 HEODP 5.2 6.4 9.2 12.5 16.4 NA NA NA NA NA

208/60/1 HEODP 2.8 4.2 NA NA NA NA NA NA NA NA

230/60/1 HEODP 2.6 5.2 4.6 6.3 8.2 NA NA NA NA NA

208/60/3 HEODP 1.8 2.5 3.6 5.0 6.7 9.2 14.7 22.1 29.0 40.0

230/60/3 HEODP 1.6 2.3 2.8 3.8 5.4 8.0 12.8 19.2 25.2 36.0

460/60/3 HEODP 0.8 1.2 1.4 1.9 2.7 4.0 6.4 9.6 25.2 18.0

575/60/3 HEODP NA NA 1.1 1.8 2.3 3.2 5.2 7.7 10.1 14.5

115/60/1 HETE 5.5 7.6 9.2 14.0 19.2 NA NA NA NA NA

208/60/1 HETE NA NA NA NA NA NA NA NA NA NA

230/60/1 HETE 2.8 3.8 4.6 7.0 9.6 NA NA NA NA NA

208/60/3 HETE NA NA 3.2 4.6 6.2 8.8 14.7 21.4 29.0 41.2

230/60/3 HETE 4.6 6.3 3.0 4.2 5.8 8.0 12.0 18.8 25.2 37.0

460/60/3 HETE 2.3 3.2 1.5 2..1 2.9 4.0 6.0 9.4 12.6 18.5

575/60/3 HETE NA NA 1.1 1.8 2.4 3.2 4.8 7.5 10.2 14.9

208/60/3 2S1W NA NA 3.0/1.0 4.4/1.8 6.2/3.0 9.0/3.4 15.0/6.0 21.0/7.5 29.0/9.6 NA

230/60/3 2S1W NA NA 3.0/1.0 4.4/1.8 5.9/2.9 8.0/3.3 14.0/6.2 19.5/7.5 25.0/9.3 NA

460/60/3 2S1W NA NA 1.5/0.5 2.2/1.9 3.1/1.3 3.8/1.6 6.8/2.8 10.0/4.0 12.0/4.3 18.0/6.0

575/60/3 2S1W NA NA NA NA NA NA NA NA NA NA

115/60/1 2S2W 9.2/6.0 9.2/4.6 11.9/6.9 NA NA NA NA NA NA NA

208/60/1 2S2W NA 5.0/2.5 6.3/3.0 NA NA NA NA NA NA NA

230/60/1 2S2W 4.6/3.0 4.6/2.3 6.0/3.6 NA NA NA NA NA NA NA

208/60/3 2S2W 2.4/1.6 3.0/1.9 3.4/2.0 5.0/2.6 6.5/3.5 9.3/4.9 NA 20.0/11.0 27.0/14.0 NA

230/60/3 2S2W 2.1/1.4 2.7/1.7 3.2/2.0 4.8/2.9 6.3/3.5 8.5/4.6 NA 19.0/10.0 25.0/12.5 NA

460/60/3 2S2W 1.1/0.7 1.3/0.9 1.5/1.0 2.3/1.3 3.0/1.7 4.6/2.7 NA 9.7/5.5 12.2/7.0 NA

575/60/3 2S2W NA NA NA NA NA NA NA NA NA NA

Notes:

1. ODP = Open Drip-proof

2. TE = Totally enclosed

3. HEODP = High Efficiency Open Drip-proof

4. HETE = High Efficiency Totally Enclosed

5. 2S1W = Two Speed One Winding

6. 2S2W = Two Speed Two Winding

7. NA = Not Available

FLA based on NEC Ratings

43

Controls

Outside Air or Return Air

Two-Position Motor/Spring Return

Units with outside air or return air only

shall be provided with damper, two-

position spring return damper motor

and controls. The motor shall power

the damper full open when the unit is

on and full closed when the unit is off.

Outside Air/Return Air

Two-Position Spring Return

Two-position spring return motor with

interlocked outside and return air

dampers shall be provided. The motor

shall power either the outside air

damper full open and the return air

damper full closed or the outside air

damper full closed and the return air

damper full open in response to an

outside air temperature sensor. When

the unit is off, the motor will drive the

outside air damper full closed and the

return air damper full open.

Outside Air/Return Air Modulating

Motor W/Mixed Air Control/Minimum

Position Potentiometer/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream. Units shall also be

provided with a minimum position

potentiometer for minimum outside air

damper position.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

Outside Air/Return Air Modulating

Motor W/Mixed Air Temperature

Control/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

Outside Air/Return Air Modulating

Motor W/Minimum Position

Potentiometer/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall position the

outside and return air dampers in

response to a manually set

potentiometer. The spring return

feature drives the outside air damper

full closed and the return air damper

full open when the unit is off.

Outside Air/Return Air Modulating

Motor W/Dry Bulb/ Mixed Air

Temperature Control and Minimum

Position Potentiometer/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate the

position of the outside and return air

dampers in response to a thermostatic

controller and dry bulb thermostat

located in the mixed air stream. Units

shall also be provided with a minimum

position potentiometer for minimum

outside air damper position. The spring

return feature drives the outside air

damper full open and the return air

damper full closed when the unit is off.

Outside Air/Return Air Modulating

Motor W/Enthalpy Controlled

Economizer/Spring Return

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to an enthalpy controlled

economizer. When the unit is off, the

motor will drive the outside air damper

full closed and the return air damper

full open.

Pilot Control

Intermittent pilot ignition is standard on

all outdoor units. Intermittent pilot

ignition contains a solid-state ignition

control system that ignites the pilot by

spark for each cycle of operation. When

the pilot flame is proven, the main

burner valve opens to allow gas flow to

the burners. Both the pilot and burners

are extinguished during the off cycle.

Energy savings will be realized using

this system as the pilot is extinguished

in the off cycle.

Air Inlet Configuration

The air inlet configuration defines the

entering air opening for the rooftop gas

heating units. This selection does not

include dampers and must match the

required opening for the air control and

damper arrangement. A horizontal

return air feature is offered on air inlet

configurations 3 and 4.

Air Inlet Configuration

Note: Horizontal outside air over return

air. Specify air inlet configuration 4 or 5

and then select miscellaneous option

D for horizontal return.

Damper Options

Dampers shall be of the opposed blade

type, constructed of galvanized steel

with neoprene nylon bushings, blades

to be mechanically interlocked.

Optional low leak dampers shall be of

the opposed blade type, construction

of galvanized steel with neoprene

nylon bushings and vinyl blade edge

seals, blades to be mechanically

interlocked.

See Note

Below

1 2 3

4 5

44

Controls

Outside Air/Return Air Modulating

Motor W/Space Pressure Controller

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a pressure sensor located

in the building. Non-spring return.

Outside Air/Return Air Modulating

Motor W/S-350P Proportional Mixed

Air Control/Spring Return

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a solid-state mixed air

sensor and S-350 proportional

controller. When the unit is off the

motor will drive the outside air damper

full closed and the return air damper

full open.

Outside Air/Return Air Modulating

Motor W/External 4-20 mA or

0-10 VDC Analog Input/Spring Return

Modulating motor interlocked with

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a 4-10 mA

or 0-10 VDC signal supplied by an

external DDC controller. The spring

return feature drives the outside air

damper full closed and the return air

damper full open when the unit is shut

down.

ASHRAE Cycle I - Outside/Return Air

Two Position W/Warm-Up Stat/Spring

Return

Two position spring return motor with

interlocked outside and return air

dampers shall be provided. The motor

shall power the outside air damper full

open after a warm up period

determined by a minimum supply air

temperature sensor when the unit is

on, and full closed when the unit is off.

ASHRAE Cycle II - Outside Air/Return

Air Modulating Motor W/Warm-Up

Stat/Mixed Air Temperature

Controller/Minimum Position

Potentiometer/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate the

position of the outside and return air

dampers in response to a thermostatic

controller located in the mixed air

stream after a warm up period

determined by a minimum supply air

temperature sensor. Units shall also be

provided with a minimum position

potentiometer for minimum outside air

damper position. When the unit is off,

the motor will drive the outside air

damper full closed and the return air

damper full open.

ASHRAE CYCLE III - Outside Air/

Return Air Modulating Motor W/

Warm-Up Thermostat/Mixed Air

Temperature Controller/Spring Return

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a thermostatic controller

located in the mixed air stream after a

warm up period determined by a

minimum supply air temperature

sensor. Units shall also be provided

with a minimum position

potentiometer for minimum outside air

damper position. When the unit is off,

the motor will drive the outside air

damper full closed and the return air

damper full open.

Manual Dampers

Units with outside air and return air

shall be provided with manually set

outside and return air dampers.

45

Controls

Single-Stage Control

Outdoor gas heating units are provided

with an automatic single-stage gas

valve as standard. This valve is an on/

off type control, typically activated by a

low voltage single-stage thermostat

(thermostat not included).

Two-Stage Gas Valve

Provides two stages of heat. Ignition is

at low fire (one half of the units full

rated input). Requires the use of an

optional two-stage thermostat.

Hydraulic Modulating Gas Valve

Provides modulated heat output.

Ignition is at low fire (one half of the

units full rated input), and a discharge

air temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an

automatic electric valve in series with

the hydraulic valve which cycles the

unit in response to an optional low

voltage single-stage thermostat.

Hydraulic Modulating Gas Valve with

Bypass

Provides modulated heat output.

Ignition is at low fire (one half of the

units full rated input), and a discharge

temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an

automatic electric valve in series with

the hydraulic valve which cycles the

unit. An additional electric valve in

parallel bypasses the hydraulic

modulating valve, overriding the

discharge temperature sensing bulb,

allowing full fire. Requires the use of an

optional thermostat to control the

electric valve.

Electronic Modulating  Room or

Duct Stat Control

Provides modulated heat output. An

automatic valve in series with the

modulating valve shall be provided to

cycle the unit. Ignition is at full fire (100

percent input), and modulates the gas

input from 100 percent to 40 percent

rated input.

Available for use with a room

thermostat or duct thermostat with

remote setpoint adjustment. Duct

thermostat available with optional

override room thermostat which

causes the unit to go to full fire when

the room temperature falls below the

override room thermostats setpoint.

Electronic Modulating  4-20 mA/

0-10 VDC Input

Provides modulated heat output.

Ignition is at full fire (100 percent

input), and modulates the gas input

from 100 percent to 40 percent rated

input. The modulating gas valve shall

operate in response to a 4-20 mA or a

0-10 VDC input from an external DDC

control. When furnace one only is

specified on double and triple

furnaces, additional furnace sections

will have single-stage on-off control.

Discharge Air Control with

Outside Air Reset

Unit provided with factory-mounted

discharge air controller, discharge air

sensor, outdoor air reset, summer/

winter thermostat and velocity

pressure switch. The outdoor air reset

range is from 10 F to 60 F. Full reset

occurs at 10 F outside air temperature.

There is a straight line relationship

between outside air temperature and

reset. Therefore, at 60 F outside air

temperature, no reset will occur. The

amount of reset is adjustable from 20 F

to 50 F.

Discharge air controller provides two-

minute delay between successive on

and off stages. A summer/winter

thermostat locks out heating when

outside air temperature is above 55 F.

The velocity pressure switch is

provided for protection against high

temperatures at low airflows. Available

in two-stage (half of the units full rated

input-single furnace units only), three-

stage (33 percent of the units full rated

input) and four-stage (25 percent of the

units full rated input). Three and four-

stage available on double and triple

furnace units only.

S-350 Modular Electronic Control

System

Basic system utilizes a controller

module with discharge air sensor,

setpoint and one-stage output, a stage

module with differential setpoint and

one-stage output and a display module

with LCD display for temperature

readout. The system stages the units

rate of fire based upon sensed

discharge air temperature, setpoint

setting and differential setting between

stages. Provided as a two-stage (all

furnaces), three and four-stage (double

and triple furnaces only) and six-stage

(triple furnace only).

Gas Controls

Single Furnace

Capacities 10-40

Gas Control Reference

Triple Furnace

Capacities 12

Dual Furnace

Capacities 50-80

Furnace

1Furnace

2Furnace

1Furnace

2

AIRFLOW

Furnace

3

AIRFLOW

1 Stage

2 Stage

Modulation

1 Stage

2 Stage

4 Stage

Modulation

1 Stage

2 Stage

3 Stage

6 Stage

Modulation

46

Dimensional

Data

Rooftop Gas Duct Furnace  Arrangement A

Single Furnace 10-40 (100-400 MBh)

POWER VENT (MODELS 10-40)

(Left Hand Service Access Shown)

NATURAL VENT (MODELS 10-40)

(Left Hand Service Access Shown)

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

47

Dimensional

Data

Unit Dimensional Data  Rooftop Gas Duct Furnace  Arrangement A

D Gas Inlet

Capacity A B C AGA CGA *F K NAT LP

10 32 7/815 9/16 12 11 20 11/16 19 3/830 3/16 1/2 1

/2

(835) (395) (305) (279) (525) (492) (767)

15 32 7/818 5/16 21 1/216 25 3/16 23 1/230 3/16 1/2 1

/2

(835) (465) (546) (406) (640) (597) (767)

20 43 7/823 13/16 23 1/216 25 3/16 26 1/441 3/16 1/2 1

/2

(1114) (605) (597) (406) (640) (667) (1046)

25 43 7/829 5/16 23 1/216 25 3/16 34 1/241 3/16 3/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1046)

30 54 7/834 13/16 26 17 1/226 11/16 37 1/452 3/16 3/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1326)

35 54 7/840 5/16 26 17 1/226 11/16 45 1/252 3/16 3/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1326)

40 60 3/845 13/16 26 17 1/226 11/16 51 57 11/16 3/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1465)

NOTE:

DIMENSIONS ARE IN INCHES (DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS).

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

Gravity Vent Model Power Vent Model

48

Dimensional

Data

Rooftop Gas Duct Furnace  Arrangement A

Double Furnace 50-80 (500-800 MBh)

Standard (40-120°) Temperature Rise Furnace

NATURAL VENT (MODELS 50-80)

(Left Hand Service Access Shown)

POWER VENT (MODELS 50-80)

(Left Hand Service Access Shown)

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

49

Unit Dimensional Data  Rooftop Gas Duct Furnace  Arrangement A

D Gas Inlet

Capacity A B C AGA CGA *F K NAT LP

50 43 7/829 5

/16 23 1/216 25 3

/16 34 1/241 3

/16 3/4 1/2 OR 3

/4

(1114) (745) (597) (406) (640) (876) (1046)

60 54 7/834 13/16 26 17 1

/226 11/16 37 1/452 3

/16 3/4 1/2 OR 3

/4

(1394) (884) (660) (445) (678) (946) (1326)

70 54 7/840 5

/16 26 17 1

/226 11/16 45 1/252 3

/16 3/4 1/2 OR 3

/4

(1394) (1024) (660) (445) (678) (1156) (1326)

80 60 3/845 13/16 26 17 1

/226 11/16 51 57 11/16 3/4 1/2 OR 3

/4

(1534) (1164) (660) (445) (678) (1295) (1465)

NOTE:

DIMENSIONS ARE IN INCHES (DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS).

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

Dimensional

Data

50

Dimensional

Data

Rooftop Gas Duct Furnace  Arrangement A

Triple Furnace 12 (1200 MBh)

Standard (40-120°) Temperature Rise Furnace

NATURAL VENT (MODEL 12)

(Left Hand Service Access Shown)

POWER VENT (MODEL 12)

(Left Hand Service Access Shown)

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

51

Unit Dimensional Data  Rooftop Gas Duct Furnace  Arrangement A

D Gas Inlet

Capacity A B C AGA CGA *F K NAT LP

12 60 3/845 13/16 26 17 1/226 11/16 51 57 11/16 3/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1465)

NOTE:

DIMENSIONS ARE IN INCHES (DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS).

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

Dimensional

Data

52

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Standard Blower Module for Arrangements B, C, D, E

Unit Sizes 10-80 (100-800 MBh)

STANDARD BLOWER MODULE

Unit Sizes 10-80

(Left Hand Service Access Shown)

Note: The dimensions shown do not include base skid rail.

Model A B J

10/15 32 7/8 15 9/16 24

(835) (395) (610)

20/25/50 43 7/8 23 13/16 35

(1114) (605) (889)

30/35 54 7/8 34 13/16 46

60/70 (1394) (884) (1168)

40/80 60 3/4 45 13/16 51 1/2

(1534) (1164) (1308)

53

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

HIGH CFM BLOWER MODULE

*For Cooling Arrangements Only

(Left Hand Service Access Shown)

Note: The dimensions shown do not include base skid rail.

Model A B ∆J

10/15* 32 7/8 15 9/16 24

(835) (395) (610)

20/25/50 43 7/8 23 13/16 35

(1114) (605) (889)

30/35 54 7/8 34 13/16 46

60/70 (1394) (884) (1168)

40/80/12 60 3/8 45 13/16 51 1/2

(1534) (1164) (1308)

Detail Drawing

High CFM Blower Module for Arrangements G, J

Unit Sizes 10-12 (100-1200 MBh)

100 and 150 MBh Units Not Available on Arrangements G and J

54

Air Intake Hood

Arrangements B, C, D, E, G, J, K, L

Unit Sizes 10-12 (100-1200 MBh)

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Model E Dimension

10/15 29 3/8

(746)

20/25/50 40 3/8

(1025)

30/35 51 3/8

60/70 (1305)

40/80/12 56 7/8

(1445)

55

Over/Under Air Intake with Hood

Arrangements B, C, D, E, G, J, K, L

Unit Sizes 10-12 (100-1200 MBh)

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Model E Dimension

10/15 29 3/8

(746)

20/25/50 40 3/8

(1025)

30/35 51 3/8

60/70 (1305)

40/80/12 56 7/8

(1445)

56

Dimensional

Data

Over/Under Air Intake without Hood

Arrangements B, C, D, E, G, J, K, L

Unit Sizes 10-12 (100-1200 MBh)

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Model E Dimension

10/15 27 3/4

(705)

20/25/50 38 3/4

(984)

30/35 49 3/4

60/70 (1264)

40/80/12 55 1/4

(1403)

57

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Supply Plenum Module

Arrangements C, E, J, L

Unit Sizes 10-12 (100-1200 MBh)

Note: The dimensions shown do not include base skid rail.

Model A J

10/15 32 7/8 24

(835) (610)

20/25/50 43 7/8 35

(1114) (889)

30/35 54 7/8 46

60/70 (1394) (1168)

40/80/12 60 3/8 51

(1534) (1295)

58

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS

IN PARENTHESIS ARE IN MILLIMETERS.

Coil Module

Arrangements K, L

Unit Sizes 10-80 (100-800 MBh)

L Inside Max.

Unit Size Cabinet Opening

10/15 32 1/4 (794)

20/25/50 42 1/4 (1073)

30/35/60/70 53 1/4 (1353)

40/80 58 3/4 (1492)

Model A

10/15 32 7/8

(835)

20/25/50 43 7/8

(1114)

30/35 54 7/8

60/70 (1394)

40/80 60 3/8

(1534)

Maximum Coil Dimensions

Side Opening of Cooling Module



The coil section drain pan connection is 3/4 inch NPT pipe thread. It is a female fitting that

just protrudes outside of the unit base rail. It is located on the service side of the unit.



The drain pan is constructed of stainless steel, including the fitting. It is sloped towards

the center of the pan and level across the width of the unit.



P-trap required external to the unit provided by others.

59

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Evaporative Cooler Module

Arrangements D, E

Unit Sizes 10-80 (100-800 MBh)

EVAPORATIVE COOLER MODULE

Models 10/80

Model A

10/15 32 7/8

(835)

20/25/50 43 7/8

(1114)

30/35 54 7/8

60/70 (1394)

40/80 60 3/8

(1534)

60

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

ARRANGEMENT B

MODELS 10-40

NATURAL VENT

(Left Hand Service Access Shown)

Rooftop Heating Unit with Standard Blower  Arrangement B

Models GRAA, GRBA, GRCA, GRDA

10, 15, 20, 25, 30, 35, 40 (100-400 MBh) Single Furnace

Standard (20-60 F) and High (60-90 F) Temperature Rise Furnace

ARRANGEMENT B

MODELS 10-40

POWER VENT

(Left Hand Service Access Shown)

61

Unit Dimensional Data  Arrangement B 10-40 (100-400 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

10 32 7

/815 9/16 12 11 20 11/16 19 3/831 1/16 24 1

/2 1/2

(835) (395) (305) (279) (525) (492) (789) (610)

15 32 7

/818 5/16 21 1/216 25 3/16 23 1/231 1/16 24 1

/2 1/2

(835) (465) (546) (406) (640) (597) (789) (610)

20 43 7

/823 13/16 23 1/216 25 3/16 26 1/442 1/16 35 1

/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7

/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7

/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7

/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

Dimensional

Data

Power Vented Model

62

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Rooftop Heating Unit with Standard Blower  Arrangement B

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace

Standard (40-120 F) Temperature Rise Furnace

ARRANGEMENT B

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT B

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

63

Unit Dimensional Data  Arrangement B  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

Dimensional

Data

Gravity Vent Model

64

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Rooftop Heating Unit with Standard Blower and Downflow Supply Plenum 

Arrangement C

Models GRAA, GRBA, GRCA, GRDA  10, 15, 20, 25, 30, 35, 40 (100-400 MBh)

Single Furnace

Standard (20-60 F) and high (60-90 F) Temperature Rise Furnace

ARRANGEMENT C

MODELS 10-40

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT C

MODELS 10-40

POWER VENT

(Left Hand Service Access Shown)

65

Dimensional

Data

Power Vent Model

Unit Dimensional Data  Arrangement C  10-40 (100-400 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

10 32 7/815 9/16 12 11 20 11/16 19 3/831 1/16 24 1/2 1/2

(835) (395) (305) (279) (525) (492) (789) (610)

15 32 7/818 5/16 21 1/216 25 3

/16 23 1/231 1/16 24 1/2 1/2

(835) (465) (546) (406) (640) (597) (789) (610)

20 43 7/823 13/16 23 1/216 25 3

/16 26 1/442 1/16 35 1/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

66

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Rooftop Heating Unit with Standard Blower and Downflow Supply Plenum 

Arrangement C

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace

Standard (40-120 F) Temperature Rise Furnace

ARRANGEMENT C

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

ARRANGEMENT C

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

67

Dimensional

Data

Unit Dimensional Data  Arrangement C  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7

/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7

/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7

/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

68

Dimensional

Data

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Rooftop Heating Unit with Standard Blower and Evaporative Cooler 

Arrangement D

Models GRAA, GRBA, GRCA, GRDA  10, 15, 20, 25, 30, 35, 40 (100-400 MBh)

Single Furnace

Standard (20-60 F) and High (60-90 F) Temperature Rise Furnace

ARRANGEMENT D

MODELS 10-40

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT D

MODELS 10-40

POWER VENT

(Left Hand Service Access Shown)

69

Dimensional

Data

Unit Dimensional Data  Arrangement D  10-40 (100-400 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

10 32 7/815 9/16 12 11 20 11/16 19 3/831 1/16 24 1

/2 1/2

(835) (395) (305) (279) (525) (492) (789) (610)

15 32 7/818 5/16 21 1/216 25 3/16 23 1/231 1/16 24 1

/2 1/2

(835) (465) (546) (406) (640) (597) (789) (610)

20 43 7/823 13/16 23 1/216 25 3/16 26 1/442 1/16 35 1

/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1

/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1

/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1

/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1

/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

70

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with Standard Blower and Evaporative Cooler 

Arrangement D

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace

Standard (40-120 F) Temperature Rise Furnace

ARRANGEMENT D

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

ARRANGEMENT D

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

71

Unit Dimensional Data  Arrangement D  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7

/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7

/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7

/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

Dimensional

Data

72

Rooftop Heating Unit with Standard Blower, Evaporative Cooler

and Downflow Supply Plenum  Arrangement E

Models GRAA, GRBA, GRCA, GRDA  10, 15, 20, 25, 30, 35, 40 (100-400 MBh)

Single Furnace  Standard (20-60 F) and High (60-90 F) Temperature Rise Furnace

ARRANGEMENT E

MODELS 10-40

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT E

MODELS 10-40

POWER VENT

(Left Hand Service Access Shown)

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

73

Unit Dimensional Data  Arrangement E  10-40 (100-400 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

10 32 7/815 9/16 12 11 20 11/16 19 3/831 1/16 24 1/2 1/2

(835) (395) (305) (279) (525) (492) (789) (610)

15 32 7/818 5/16 21 1/216 25 3

/16 23 1/231 1/16 24 1/2 1/2

(835) (465) (546) (406) (640) (597) (789) (610)

20 43 7/823 13/16 23 1/216 25 3

/16 26 1/442 1/16 35 1/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

Dimensional

Data

74

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with Standard Blower, Evaporative Cooler

and Downflow Supply Plenum  Arrangement E

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace  Standard (40-120 F) Temperature Rise Furnace

ARRANGEMENT E

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT E

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

75

Unit Dimensional Data  Arrangement E  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

Dimensional

Data

76

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with High Cfm Blower  Arrangement G

Models GRAA, GRBA  20, 25, 30, 35, 40 (200-400 MBh)

Single Furnace

Standard (20-60 F) Temperature Rise Furnace

ARRANGEMENT G

MODELS 20-40

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT G

MODELS 20-40

POWER VENT

(Left Hand Service Access Shown)

77

Dimensional

Data

Unit Dimensional Data  Arrangement G  20-40 (200-400 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

20 43 7

/823 13/16 23 1/216 25 3/16 26 1/442 1/16 35 1

/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7

/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7

/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7

/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

78

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with High Cfm Blower  Arrangement G

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace

Standard (40-120 F) Temperature Rise Furnace

ARRANGEMENT G

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT G

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

79

Unit Dimensional Data  Arrangement G  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7

/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7

/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7

/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

Dimensional

Data

Power Vent Model

80

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with High Cfm Blower  Arrangement G

Models GRAA, GRBA  12 (1200 MBh)

Triple Furnace

Standard (60-180 F) Temperature Rise Furnace

ARRANGEMENT G

MODEL 12

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT G

MODEL 12

POWER VENT

(Left Hand Service Access Shown)

81

Dimensional

Data

Unit Dimensional Data  Arrangement G  12 (1200 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

12 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR RETURN AIR DAMPERS.

82

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with High Cfm Blower and Downflow Supply Plenum 

Arrangement J

Models GRAA, GRBA  20, 25, 30, 35, 40 (200-400 MBh)

Single Furnace

Standard (20-60 F) Temperature Rise Furnace

ARRANGEMENT J

MODEL 20-40

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT J

MODEL 20-40

POWER VENT

(Left Hand Service Access Shown)

83

Dimensional

Data

Unit Dimensional Data  Arrangement J  20-40 (200-400 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

20 43 7/823 13/16 23 1/216 25 3

/16 26 1/442 1/16 35 1/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

Gravity Vent Model

84

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with High Cfm Blower and Downflow Supply Plenum 

Arrangement J

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace

Standard (40-120 F) Temperature Rise Furnace

ARRANGEMENT J

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT J

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

85

Dimensional

Data

Unit Dimensional Data  Arrangement J  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7

/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7

/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7

/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

86

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

ARRANGEMENT J

MODEL 12

NATURAL VENT

(Left Hand Service Access Shown)

Rooftop Heating Unit with High Cfm Blower and Downflow Supply Plenum 

Arrangement J

Models GRAA, GRBA  12 (1200 MBh)

Triple Furnace

Standard (60-180 F) Temperature Rise Furnace

ARRANGEMENT J

MODEL 12

POWER VENT

(Left Hand Service Access Shown)

87

Dimensional

Data

Unit Dimensional Data  Arrangement J  12 (1200 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

12 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

Gravity Vent Model

88

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Heating Unit with High Cfm Blower and Coil Cabinet  Arrangement K

Models GRAA, GRBA, GRCA, GRDA  Single Furnace

10, 15, 20, 25, 30, 35, 40 (100-400 MBh)  Std. (20-60 F) Temperature Rise Furnace

20, 25, 30, 35, 40 (200-400 MBh)  High (60-90 F) Temperature Rise Furnace

ARRANGEMENT K

MODELS 10-40

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT K

MODELS 10-40

POWER VENT

(Left Hand Service Access Shown)

89

Unit Dimensional Data  Arrangement K  10-40

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

10 32 7

/815 9/16 12 11 20 11/16 19 3/831 1/16 24 1

/2 1/2

(835) (395) (305) (279) (525) (492) (789) (610)

15 32 7

/818 5/16 21 1/216 25 3/16 23 1/231 1/16 24 1

/2 1/2

(835) (465) (546) (406) (640) (597) (789) (610)

20 43 7

/823 13/16 23 1/216 25 3/16 26 1/442 1/16 35 1

/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7

/829 5/16 23 1/216 25 3/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7

/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7

/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3

/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

Dimensional

Data

90

Rooftop Heating Unit with High Cfm Blower and Coil Cabinet  Arrangement K

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace

Standard (40-120 F) Temperature Rise Furnace

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

ARRANGEMENT K

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT K

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

91

Dimensional

Data

Unit Dimensional Data  Arrangement K  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

92

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

ARRANGEMENT L

MODELS 10-40

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT L

MODELS 10-40

POWER VENT

(Left Hand Service Access Shown)

Rooftop Heating Unit with High Cfm Blower, Coil Cabinet and

Downflow Supply Plenum  Arrangement L

Models GRAA, GRBA, GRCA, GRDA  Single Furnace

10, 15, 20, 25, 30, 35, 40 (100-400 MBh)  Std. (20-60 F) Temperature Rise Furnace

20, 25, 30, 35, 40 (200-400 MBh)  High (60-90 F) Temperature Rise Furnace

93

Dimensional

Data

Unit Dimensional Data  Arrangement L  10-40 (100-400 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

10 32 7/815 9/16 12 11 20 11/16 19 3/831 1/16 24 1

/2 1/2

(835) (395) (305) (279) (525) (492) (789) (610)

15 32 7/818 5/16 21 1/216 25 3

/16 23 1/231 1/16 24 1/2 1/2

(835) (465) (546) (406) (640) (597) (789) (610)

20 43 7/823 13/16 23 1/216 25 3

/16 26 1/442 1/16 35 1/2 1/2

(1114) (605) (597) (406) (640) (667) (1068) (889)

25 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

30 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

35 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

40 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

94

Rooftop Heating Unit with High Cfm Blower, Coil Cabinet

and Downflow Supply Plenum  Arrangement L

Models GRAA, GRBA  50, 60, 70, 80 (500-800 MBh)

Double Furnace  Standard (40-120 F) Temperature Rise Furnace

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

ARRANGEMENT L

MODELS 50-80

NATURAL VENT

(Left Hand Service Access Shown)

ARRANGEMENT L

MODELS 50-80

POWER VENT

(Left Hand Service Access Shown)

95

Dimensional

Data

Unit Dimensional Data  Arrangement L  50-80 (500-800 MBh)

A.G.A. C.G.A. GAS INLET

CAPACITY A B C D D *F G J NAT LP

50 43 7/829 5/16 23 1/216 25 3

/16 34 1/242 1/16 35 3

/4 1/2 OR 3/4

(1114) (745) (597) (406) (640) (876) (1068) (889)

60 54 7/834 13/16 26 17 1/226 11/16 37 1/453 1/16 46 3

/4 1/2 OR 3/4

(1394) (884) (660) (445) (678) (946) (1348) (1168)

70 54 7/840 5/16 26 17 1/226 11/16 45 1/253 1/16 46 3

/4 1/2 OR 3/4

(1394) (1024) (660) (445) (678) (1156) (1348) (1168)

80 60 3/845 13/16 26 17 1/226 11/16 51 58 9/16 51 1/2 3

/4 1/2 OR 3/4

(1534) (1164) (660) (445) (678) (1295) (1487) (1308)

NOTE:

DIMENSIONS ARE IN INCHES, DIMENSIONS IN PARENTHESIS ARE IN MILLIMETERS.

*F DIMENSION IS THE RECOMMENDED CLEARANCE TO SERVICE THE BURNER DRAWER(S).

J DIMENSION IS AN OUTSIDE DIMENSION FOR OUTSIDE OR RETURN AIR DAMPERS.

J DIMENSION IS AN INSIDE DIMENSION FOR SUPPLY AIR (WITHOUT DAMPER).

96

DIMENSIONS ARE IN INCHES, DIMENSIONS IN

PARENTHESIS ARE IN MILLIMETERS.

Dimensional

Data

Rooftop Gas Heating Unit  Arrangements B-L

Roof Curb

10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80, 12

97

Dimensional

Data

Roof Opening

Model D E

10,15 24 26

(610) (660)

20,25,50 35 37

(889) (940)

30,35,60,70 46 48

(1168) (1219)

40,80,12 51 1/2 53 1/2

(1308) (1359)

Arrg. Cap. B

C&E 10/40 18 7/8 (479)

C&E 50/80 19 3/8 (492)

J 12 18 7/8

L 50/80 (479)

G 50/80 19 1/8

J 20/40 (486)

K 10/40

G 12 19 1/4

J&K 50/80 (489)

L 10/40

Arrg. Cap. A

C&E 10-40 18 7/8 (479)

C&E 50-80 19 3/8 (492)

J 12, L 50-80 18 7/8 (479)

G 50-80, J 20-40, K 10-40 19 1/8 (486)

G 12, J&K 50-80, L 10-40 19 1/4 (489)

Section Y-Y Section X-X

Blower/Filter/Damper or Filter/Damper Area Supply Plenum Area

Detail A

➀ Curb Cross Brace Channel

Á Curb Side Rail Channel

 Curb End Rail Channel

à Screw - #10 x 5/8 Lg. Pan Hd. Type AB 8 Reqd.

➀ Roof Mounting Angle

Á Curb End Rail Channel

 Screw - #10 x 5/8 Lg. Pan Hd. Type AB K Reqd.

à Fasteners by Others

Item #3

K

Capacity (CA) Reqd

10/15 3

20/25/50 4

30/35/60/70 4

40/80/12 5

Item #4

K

Capacity D Reqd

10/15 24 12

20/25/50 35 14

30/35/60/70 46 14

40/80/12 51 1/216

Detail D Detail E

98

Dimensional

Data

Curb Specifications

Capacity Dimension E*

10/15 26 (660)

20/25/50 37 (940)

30/35/60/70 48 (1219)

40/80/12 53 1/2 (1359

*All dimensions shown have been calculated to

include a one (1) inch clearance around return

and supply ducts.

Section

X-X Return

Air

Opening

Supply

Air

Opening

Section

Y-Y

E*

20 7/8

(530) A* 20 7/8

(530)

See preceding page for Sections X-X and Y-Y.

Section Curb Side Rail

Detail K

99

Dimensional

Data

Unit/Curb End Rail Assembly

Curb Cap End Adaptor -

Supplied with the Unit

(one each end)

Unit/Base Rail Assembly

Rooftop Gas Heating Units  Arrangements D, E

Evaporative Cooler  Platform

10, 15, 20, 25, 30, 35, 40, 50, 60, 70, 80

Evaporative Cooler

Curb/Platform 10-80

Evaporative Cooler Curb/Platform Mounting Assembly

➀ Evaporative Cooler Assembly

Á Curb

 1/4-20 KEPS Nut (8) Required

à 1/4-20 x 5/8 Lg. Hex Hd. Bolt (8) Required

See View A

View A

Typ. (8) PLCs.

100

Weights

Table W-1  Gravity Vented Unit and Option Weight Data (Pounds)

A B C D E G J K L Outside

Arrangement Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Air Hood

10 199 218 537 638 651 776 674 805 788 943 NA NA NA NA 775 930 880 1059 43

15 226 245 566 667 679 804 702 833 815 970 NA NA NA NA 801 956 905 1084 43

20 281 302 689 798 819 953 855 995 984 1149 848 988 968 1133 950 1115 1070 1260 51

25 306 327 716 825 844 978 882 1022 1010 1175 898 1038 1023 1188 1000 1165 1125 1315 51

30 362 384 843 959 988 1131 1035 1184 1181 1356 1066 1215 1209 1384 1176 1351 1319 1520 59

35 387 409 889 1005 1033 1176 1081 1230 1225 1400 1110 1259 1252 1427 1220 1395 1362 1563 59

40 423 455 950 1070 1101 1248 1156 1309 1307 1487 1183 1336 1333 1513 1302 1482 1452 1658 63

50 614 711 1035 1169 1155 1314 1201 1366 1321 1511 1209 1374 1329 1519 1311 1501 1439 1654 51

60 727 831 1219 1362 1356 1525 1411 1586 1548 1749 1434 1609 1571 1772 1544 1745 1689 1916 59

70 777 881 1289 1432 1425 1594 1482 1657 1618 1819 1503 1678 1638 1839 1613 1814 1756 1983 59

80 850 958 1386 1533 1530 1704 1592 1772 1736 1942 1612 1792 1755 1961 1730 1936 1874 2107 63

12 1264 1399 NA NA NA NA NA NA NA NA 2040 2246 2192 2425 NA NA NA NA 63

Note:

1. Weights do not include motors or coils.

Table W-2  Power Vented Unit and Option Weight Data (Pounds)

A B C D E G J K L Outside

Arrangement Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Net Ship Air Hood

10 197 216 536 637 650 775 672 803 786 941 NA NA NA NA 774 929 879 1058 43

15 221 240 561 662 673 798 697 828 810 965 NA NA NA NA 799 954 903 1082 43

20 268 289 676 785 806 940 842 982 972 1137 832 972 956 1121 938 1103 1063 1253 51

25 293 314 703 812 831 965 869 1009 997 1162 881 1021 1010 1175 984 1149 1112 1302 51

30 340 362 821 937 966 1109 1014 1163 1159 1334 1037 1186 1188 1363 1146 1321 1298 1499 59

35 365 387 867 983 1011 1154 1060 1209 1203 1378 1089 1238 1230 1405 1199 1374 1340 1541 59

40 401 433 928 1048 1079 1226 1134 1287 1286 1466 1161 1314 1311 1491 1280 1460 1430 1636 63

50 589 686 1010 1144 1130 1289 1175 1340 1296 1486 1184 1349 1304 1494 1286 1476 1414 1629 51

60 684 788 1175 1318 1312 1481 1368 1543 1505 1706 1390 1565 1527 1728 1500 1701 1645 1872 59

70 784 838 1246 1389 1382 1551 1438 1613 1574 1775 1459 1634 1595 1796 1569 1770 1713 1940 59

80 806 914 1343 1490 1487 1661 1549 1729 1693 1899 1568 1748 1712 1918 1687 1893 1838 2071 63

12 1198 1333 NA NA NA NA NA NA NA NA 1975 2181 2127 2360 NA NA NA NA 63

Note:

1. Weights do not include motors or coils.

Table W-3  Roof Curb Weights

Arrangement 10 15 20 25 30 35 40 50 60 70 80 12

B 115 115 133 133 151 151 161 168 186 186 196

C 150 150 168 168 186 186 196 197 217 217 227

D 115 115 133 133 151 151 161 168 186 186 196

E 150 150 168 168 186 186 196 197 217 217 227

G 179 179 197 197 207 210 228 228 238 381

J 210 210 228 228 238 338 366 366 381 418

K 192 192 210 210 228 228 238 338 366 366 381

L 310 310 338 338 366 366 381 375 403 403 418

Metric Conversion  1 lb. = 0.453 kg

101

Weights

Table W-4  Motor Weights

Voltage 1/2 HP 3/4 HP 1 HP 1 1/2 HP 2 HP 3 HP 5 HP 7 1/2 HP 10 HP 15 HP

115/60/1 ODP 20 25 25 40 42 80 NA NA NA NA

208/60/1 ODP 21 27 25 40 66 80 NA NA NA NA

230/60/1 ODP 21 25 25 40 42 80 NA NA NA NA

208/60/3 ODP 20 24 31 29 35 47 49 99 118 152

230/60/3 ODP 20 24 31 29 35 47 49 99 118 150

460/60/3 ODP 20 24 31 29 35 47 49 99 118 150

575/60/3 ODP 20 20 27 31 37 56 73 105 116 150

115/60/1 TE 26 30 34 41 65 74 NA NA NA NA

208/60/1 TE 27 36 39 48 65 74 NA NA NA NA

230/60/1 TE 26 30 34 41 65 74 NA NA NA NA

208/60/3 TE 18 23 28 32 36 55 65 90 123 295

230/60/3 TE 18 23 28 32 36 55 65 90 123 295

460/60/3 TE 18 23 28 32 36 55 65 90 123 295

575/60/3 TE 21 21 26 36 40 90 92 161 199 284

115/60/1 HEODP 32 33 38 58 72 NA NA NA NA NA

208/60/1 HEODP 32 30 NA NA NA NA NA NA NA NA

230/60/1 HEODP 32 33 38 58 72 NA NA NA NA NA

208/60/3 HEODP 22 25 40 44 44 83 89 139 141 213

230/60/3 HEODP 24 26 40 43 44 80 91 137 138 238

460/60/3 HEODP 24 26 40 43 44 80 91 137 138 238

575/60/3 HEODP NA NA 41 44 45 90 100 170 141 215

115/60/1 HETE 28 37 38 41 53 NA NA NA NA NA

208/60/1 HETE NA NA NA NA NA NA NA NA NA NA

230/60/1 HETE 28 37 38 41 53 NA NA NA NA NA

208/60/3 HETE NA NA 39 34 48 71 78 107 124 225

230/60/3 HETE 32 52 39 34 48 94 110 158 166 294

460/60/3 HETE 32 52 39 34 48 94 110 158 166 294

575/60/3 HETE NA NA 44 69 88 76 80 132 140 260

208/60/3 2S1W NA NA 34 38 48 66 81 125 143 NA

230/60/3 2S1W NA NA 34 38 48 66 81 125 143 NA

460/60/3 2S1W NA NA 34 38 41 58 94 125 136 218

575/60/3 2S1W NA NA NA NA NA NA NA NA NA NA

115/60/1 2S2W 23 30 37 NA NA NA NA NA NA NA

208/60/1 2S2W NA 29 36 NA NA NA NA NA NA NA

230/60/1 2S2W 23 29 36 NA NA NA NA NA NA NA

208/60/3 2S2W 27 32 44 47 67 84 NA 221 192 NA

230/60/3 2S2W 26 32 44 47 67 84 NA 221 192 NA

460/60/3 2S2W 26 33 40 44 55 67 NA 214 230 NA

575/60/3 2S2W NA NA NA NA NA NA NA NA NA NA

Notes:

1. ODP = Open Drip-proof

2. TE = Totally enclosed

3. HEODP = High Efficiency Open Drip-proof

4. HETE = High Efficiency Totally Enclosed

5. 2S1W = Two Speed One Winding

6. 2S2W = Two Speed Two Winding

7. NA = Not Available

FLA based on NEC Ratings

Table W-5  Evaporative Cooler Weight

Shipping Wt. Operating Wt.

Unit Size lb lb

10, 15 137 301

20, 25, 50 166 386

30, 35, 60, 70 192 468

40, 80 206 509

Metric Conversion  1 lb. = 0.453 kg

102

Options Thermostats

Single-Stage Room Thermostat

(Order No. 134-0207-01)

Low Voltage (24V)

40 F to 90 F Range

Fan Auto-On Switch

System Heat-Off-Cool Switch

Two-Stage Room Thermostat

(Order No. 134-0207-04)

Low Voltage (24V)

40 F to 90 F Range

Fan Auto-On Switch

System Off-Heat-Auto-Cool Switch

5 5/8 W x 3 1/2 H x 2 1/8 D

Single-Stage Room Thermostat

with Summer/Winter Switch

(Order No. 134-0207-02)

Low Voltage (24V)

55 to 95 F Range

Fan Auto-On Switch

3 1/2 W x 4 1/5 H x 1 3/8 D

T7300 Programmable Room

Thermostat

(Order No. 134-0207-05)

Provides seven-day programmability

for two stages of heating and two

stages of cooling

Heat-Off-Cool-Auto system switching

four time periods per day for occupied

and unoccupied modes with three-hour

override of unoccupied mode.

Automatic heat-cool changeover and

battery backup.



8 W x 4 H x 1 5/8 D

Universal Guard

(Order No. 134-0207-07)

Clear Plastic

Ring Base

Tumbler Lock and Two Keys

Cover:6 7/8 W x 5 5/8 H x 3 D

Base:6 9/16 W x 5 1/2 H x 3/8 D

Single-Stage Duct Thermostat

(Order No. 134-0207-03)

Low Voltage (24V)

55 to 175 F Range

5 Capillary

2 W x 5 5/8 H x 2 7/16 D

Two-Stage Duct Thermostat

(Order No. 134-0207-06)

Low Voltage (24V)

55 to 175 F Range

5 Capillary

2 W x 5 5/8 H x 2 7/16 D

103

Electronic Modulating Duct

Thermostat

(Included with Gas Control)

Low voltage (24 V)

55-90 F range

Sensor: 10-inch probe

Remote temperature selector:

4 1/4 W x 4 1/4 H x 1 7/8 D

Duct thermostat:

4 1/4 W x 4 1/4 H x 1 5/8 D

Natural gas only

Options Thermostats

Controls

Electronic Modulating Duct

Thermostat with Room Override

Line voltage (115 V) roomstat

50-90 F range

2 7/8 W x 4 9/16 H x 1 1/4 D

Low voltage (24 V) Ductstat

55-90 F range

Sensor: 10-inch probe

Remote temperature selector:

4 1/4 W x 4 1/4 H x 1 5/8 D

Duct thermostat:

4 1/4 W x 4 1/4 H x 1 5/8 D

Natural gas only

Electronic Modulating Room

Thermostat

(Included with Gas Control)

Low voltage (24 V)

60-85 F range

Natural gas only 



Room thermostat:

4 1/2 H x 2 1/2 W x 1 1/2 D

Seven-Day Timeclock

(Order No. 134-0201-02)

 Single pole double throw (SPDT) relay

output at setpoint time

 Maximum of six setpoints per day

7 3/4 H x 5 W x 3 7/16 D

24-Hour Timeclock

(Order No. 134-0201-03)

Single pole double throw (SPDT) relay

output at setpoint time.

Maximum 12 setpoints per day.

7 3/4 H x 5 W x 3 7/16 D

Remote Control Station

(Order No. 134-0201-01)

Wall mounted

Six LED status lamps

System on/off, fan auto/on, heat auto/

off, cool auto/off, auxiliary on/off

switching and modulating damper

potentiometer mounting.

Plug-in terminal block wiring and wall

mounting bracket.



6 1/4 W x 3 3/4 H x 1 1/2 D

Room

Thermostat Duct

Stat

Remote

Temperature

Selector

Duct

Stat

Remote

Temperature

Selector

Room

Override

104

Options Controls

Electronic Modulating

4-20 mA or 0-10 VDC Input

A200 signal conditioner

Control replaces amplifier in duct or

room control package





Discharge Air Control with Outside

Air Reset

Available in two, three and four-stage

control. Shown below is the discharge

air controller.

Roof Curbs

Roof Curbs

Roof curbs are available for all Trane

single, double and triple furnace

outdoor units. All curbs are shipped

knocked down for field assembly.

Curbs are normally available on a short

lead time basis so they may be on the

jobsite well in advance of the units.

Curbs are 12 inches high, factoring in

the four-inch unit base rail, overall

height to the bottom of the rooftop unit

is actually 16 inches. Roof curbs can be

supplied with one-inch fiberglass

insulation.

105

Features

Summary

Trane rooftop gas heating units have

the following design features:



All units have AGA and CGA certified

duct furnaces.

ETL and CSA UL-1995 certified

packaged units.

All units fabricated from aluminized

steel. The heat exchanger uses 20-

gauge tubes and 18-gauge header

sections.

Units are complete, wired, tested and

rail-mounted packages with blower

drives preset.

Units are available with left hand or

right hand gas control configuration.

This flexibility helps to meet special

application requirements.

Draw-thru coil cabinet arrangements

with stainless steel drain pan.

Evaporative cooling arrangement with

standard 8 or optional 12-inch media

(203 or 305 mm).

106

Mechanical

Specifications

Rooftop

Duct Furnace

Arrangement A

GENERAL

Units shall be completely factory

assembled, piped, wired and test fired.

All duct furnaces shall be AGA and

CGA certified and conform with the

latest ANSI Standards for safe and

efficient performance. Units shall be

mounted on metal rails with lifting and

anchor holes and shall be suitable for

slab mounting. Units shall be available

for operation on either natural or LP

(propane) gas. The firing rate of each

furnace will not exceed 400 MBh and

shall contain its own heat exchanger,

flue collector, venting, burners, safety

and ignition controls. All furnaces shall

be in compliance with FM (Factory

Mutual) requirements.

ELECTRICAL

Standard control relays shall be socket

mounted with terminal block

connections. All control wiring shall

terminate at terminal strips (single

point connection) and include an

identifying marker corresponding to

the wiring diagram. Control wiring

shall be harnessed with terminal block

connections.

Casing

Casings shall be die-formed, 18-gauge

galvanized steel and finished in air-dry

enamel. Service and access panels

shall be provided through easily

removable side access panels with

captive fasteners.

Heat Exchanger

Standard heat exchanger construction

shall consist of 20-gauge aluminized

steel tubes and 18-gauge aluminized

steel headers. Standard drip pan

construction shall be corrosion

resistant aluminized steel.

Flue Collector

Standard flue collector construction

shall be corrosion resistant aluminized

steel.

Venting System

Natural vent units shall be provided

with a vent cap designed for gravity

venting. Outside air for combustion

enters at the base of the vent cap

through a protective grille, and

products of combustion are discharged

through the upper section of the flue

vent cap.

Power vent units shall be provided with

a vent fan. Outside air for combustion

and products of combustion shall have

individual air inlet and discharge grilles

located in the upper section of the

furnace service panel. An air proving

switch shall be installed and disengage

gas flow if for any reason the drafter

has failed to operate. (Power venting

and 100 percent shutoff ignition

systems are required for compliance

with IRI (Industrial Risk Insurers).

Burners

Burners shall be die-formed, corrosion

resistant aluminized steel, with

stamped porting and stainless steel

port protectors. Port protectors prevent

foreign matter from obstructing the

burner ports. Burners are individually

removable for ease of inspection and

servicing. The entire burner assembly

is easily removed with its slide-out

drawer design. The pilot shall be

accessible through an access plate

without removing the burner drawer

assembly.

Electrical Cabinet

Electrical cabinet shall be isolated from

the air stream with a non-removable

access panel interior to the outer

service panel. There is provision in this

cabinet for component mounting, wire

routing and high voltage isolation.

Control wiring shall be harnessed with

terminal block connections.

Controls

Standard units shall be provided with

24-volt combination single-stage

automatic gas valves, including main

operating valve and pilot safety shutoff,

pressure regulator, manual main and

pilot shutoff valve, and adjustable pilot

valve. Gas valves shall be suitable for

NEC Class 2 use for a maximum inlet

gas pressure of 0.5 psi (14 WC) on

natural gas. All rooftop units shall be

provided with a low voltage circuit

breaker rated for 150 percent of the

units normal 24-volt operating load.

Each duct furnace shall be provided

with a 24 V high temperature limit

switch and a (redundant) combination

gas valve.

All units provided with a solid state

ignition control system which ignites

the intermittent pilot by spark during

each cycle of operation. When pilot

flame is proven, main burner valve

opens to allow gas flow to the burners.

Pilot and burners are extinguished

during the off cycle.

107

Mechanical

Specifications

FACTORY INSTALLED OPTIONS

Control Options (Per Furnace)

Two-Stage Gas Valve

Provides two stages of heat. Ignition is

at low fire (one half of the units full

rated input). Requires the use of an

optional two-stage thermostat.

Hydraulic Modulating Gas Valve

Provides modulated heat output.

Ignition is at low fire (one half of the

units full rated input), and a discharge

air temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an

automatic electric valve in series with

the hydraulic valve which cycles the

unit in response to an optional low

voltage single-stage thermostat.

Hydraulic Modulating Gas Valve with

Bypass

Provides modulated heat output.

Ignition is at low fire (one half of the

units full rated input), and a discharge

temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an

automatic electric valve in series with

the hydraulic valve which cycles the

unit. An additional electric valve in

parallel bypasses the hydraulic

modulating valve, overriding the

discharge temperature sensing bulb,

allowing full fire. Requires the use of an

optional thermostat to control the

electric valve.

Electronic Modulating  Room or

Duct Stat Control

Provides modulated heat output. An

automatic valve in series with the

modulating valve shall be provided to

cycle the unit. Ignition is at full fire (100

percent input), and modulates the gas

input from 100 percent to 40 percent

rated input. Available for use with a

room thermostat or duct thermostat

with remote setpoint adjustment. Duct

thermostat available with optional

override room thermostat which

causes the unit to go to full fire when

the room temperature falls below the

override room thermostats setpoint.

Electronic Modulating 

4-20 mA/0-10 VDC Input

Provides modulated heat output.

Ignition is at full fire (100 percent input),

and modulates the gas input from 100

percent to 40 percent rated input. The

modulating gas valve shall operate in

response to a 4-20 mA or a 0-10 VDC

input from an external DDC control.

When furnace one only is specified

on double and triple furnaces,

additional furnace sections will have

single-stage on-off control.

Discharge Air Control with Outside

Air Reset

Unit provided with factory-mounted

discharge air controller, discharge air

sensor, outdoor air reset, summer/

winter thermostat and velocity

pressure switch. The outdoor air reset

range is from 10 F to 60 F. Full reset

occurs at 10 F outside air temperature.

There is a straight line relationship

between outside air temperature and

reset. Therefore, at 60 F outside air

temperature, no reset will occur. The

amount of reset is adjustable from 20 F

to 50 F. Discharge air controller

provides two minute delay between

successive on and off stages. A

summer/winter thermostat locks out

heating when outside air temperature

is above 55 F. The velocity pressure

switch is provided for protection

against high temperatures at low

airflows.

Available in two-stage (half of the units

full rated input), three-stage (33 percent

of the units full rated input) and four-

stage (25 percent of the units full rated

input). Three and four-stage available

on double and triple furnace units only.

S-350 Modular Electronic Control

System

Basic system utilizes a controller

module with discharge air sensor,

setpoint and one stage output, a stage

module with differential setpoint and

one stage output and a display module

with LCD display for temperature

readout. The system stages the units

rate of fire based upon sensed

discharge air temperature, setpoint

setting and differential setting between

stages.

Provided as a two-stage (all furnaces),

three and four-stage (double and triple

furnaces only) and six-stage (triple

furnace only).

Heat Exchanger Options

Type 409 Stainless Steel (one or all

furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 409 stainless

steel. Burners and flue collector shall

be aluminized steel. 409 stainless steel

is recommended when outside air is

used for make-up air in areas where

outside temperatures are 40 F or

below.

Type 409 Stainless Steel Package

(one or all furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 409 stainless

steel. Burners and flue collector shall

be 409 stainless steel. 409 stainless

steel is recommended where outside

air is used for make-up air in areas

where outside temperatures are 40 F

or below.

Type 321 Stainless Steel (one or all

furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 321 stainless

steel. Burners and flue collector shall

be aluminized steel.

Type 321 Stainless Steel Package

(one or all furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 321 stainless

steel. Burners and flue collector shall

be 409 stainless steel.

Additional Factory Installed Options

Fan Time Delay

The fan time delay relay minimizes

cold blasts of air on start-up. It also

allows the fan to operate after burner

shutdown (120 second delay off),

removing the residual heat from the

heat exchanger.

Manual Blower Switch

Manual blower switch shall be factory

installed in the electrical cabinet.

108

Mechanical

Specifications

Firestat

If temperature reaches the setpoint, the

unit will close all gas valves, return the

dampers to their normal position and

shut down the blower. Manual reset.

Return Air Mounted (setpoint

typically 130 F)

Supply Air Mounted (setpoint

typically 150 F)

Orifices for Elevations over 2000 feet

409 Stainless Steel Furnace Drip Pan

Replaces the standard aluminized steel

furnace drip pan.

Airflow Proving Switch

High/Low Gas Pressure Limit

Switches

A high pressure and a low pressure

interlock switch and shutoff valve shall

be provided for each furnace section.

High/low gas pressure limits disengage

heating upon detecting either high line

pressure or low manifold pressure.

Status Indicator Lamps (Electrical

Cabinet)

Status indicator lamps shall include

power on, blower on and one lamp per

stage of heat mounted in the electrical

cabinet.

Field Installed Accessories

High Gas Line Pressure Regulator

Reduces main gas line pressure to a

minimum of 7 inches WC. Pressure at

the jobsite must be specified. The

regulator is selected to accommodate

that specific pressure.

Remote Control Station

Wall mounted. Provides six LED status

lamps with System On/Off, Fan Auto/

On, Heat Auto/Off, Cool Auto/Off,

Auxiliary On/Off switching and

Modulating damper potentiometer

mounting. Designed for easy

installation with plug-in terminal block

wiring and wall mounting bracket.

(Auxiliary On/Off may be used with the

Evaporative Cooler fill and drain kit.)

Seven-Day Timeclock

Provides single-pole double-throw

(SPDT) relay output at setpoint time

with maximum six setpoints per day.

24-Hour Timeclock

Provides single-pole double-throw

(SPDT) relay output at setting time with

maximum 12 setpoints per day.

Disconnect Switch

115V Convenience Outlet

GFI (Ground Fault Convenience Outlet)

is manual reset with weatherproof

enclosure. (Requires separate 115V

power source.)

Manual Reset High Limit Switch

The rooftop unit shall be provided with

a manual reset high limit switch wired

in series to the lead furnace high limit.

If the setpoint is reached, the gas valve

will close and the blower will continue

to run until the sensed temperature is

below the setpoint.

THERMOSTATS

Low voltage room thermostat, single

stage with fan auto-on-switch and

system heat off- cool switch.

Low voltage room thermostat, single

stage with fan auto-on switch.

Low voltage room thermostat, two

stage with fan auto-on switch and

system off-heat-auto-cool switch.

Low voltage programmable room

thermostat, two stage with LCD

display, fan auto-on switch and system

off-heat-auto-cool switch.

Universal tamperproof guard for all

room thermostats.

Low voltage duct thermostat, single

stage.

Low voltage duct thermostat, two-

stage.

Room thermostat, electronic

modulating control.

Duct thermostat, electronic

modulating control.

Duct thermostat, electronic

modulating control with override room

thermostat.

109

Mechanical

Specifications

Arrangement B, C, D, E

GENERAL

Units shall be completely factory

assembled, piped, wired and test fired.

All units shall contain duct furnaces that

are AGA and CGA certified and

conform with the latest ANSI Standards

for safe and efficient performance.

Units shall be mounted on metal rails

with lifting and anchor holes and shall

be suitable for slab or curb mounting.

Units shall be available for operation on

either natural or LP (propane) gas.

The firing rate of each furnace will not

exceed 400 MBh and shall contain its

own heat exchanger, flue collector,

venting, burners, safety and ignition

controls. All units shall be ETL or UL

certified for electrical safety in

compliance with UL 1995 safety

standard for heating, ventilating and

cooling equipment. All units shall be in

compliance with FM (Factory Mutual)

requirements.

ELECTRICAL

Standard control relays shall be socket

mounted with terminal block

connections. All control wiring shall

terminate at terminal strips (single point

connection) and include an identifying

marker corresponding to the wiring

diagram. Motor and control wiring shall

be harnessed with terminal block

connections.

Casing

Casings shall be die-formed, 18-gauge

galvanized steel and finished in air-dry

enamel. Service and access panels shall

be provided through easily removable

side access panels with captive

fasteners. Fan sections and supply

plenums (when provided) shall be

insulated with fire resistant, odorless,

matte-faced one-inch glass fiber

material. Outside air hoods, when

provided, ship with a wire mesh inlet

screen.

Heat Exchanger

Standard heat exchanger construction

shall consist of 20-gauge aluminized

steel tubes and 18-gauge aluminized

steel headers. Standard drip pan

construction shall be corrosion resistant

aluminized steel.

Flue Collector

Standard flue collector construction

shall be corrosion resistant aluminized

steel.

Venting System

Natural vent units shall be provided

with a vent cap designed for gravity

venting. Outside air for combustion

enters at the base of the vent cap

through a protective grille, and

products of combustion are discharged

through the upper section of the flue

vent cap.

Power vent units shall be provided with

a vent fan. Outside air for combustion

and products of combustion shall have

individual air inlet and discharge grilles

located in the upper section of the

furnace service panel. An air proving

switch shall be installed and disengage

gas flow if for any reason the draftor

has failed to operate. Power venting

and 100 percent shutoff ignition

systems are required for compliance

with IRI (Industrial Risk Insurers).

Burners

Burners shall be die-formed, corrosion

resistant aluminized steel, with

stamped porting and stainless steel

port protectors. Port protectors prevent

foreign matter from obstructing the

burner ports. Burners are individually

removable for ease of inspection and

servicing. The entire burner assembly is

easily removed with its slide-out

drawer design. The pilot shall be

accessible through an access plate

without removing the burner drawer

assembly.

Evaporative Cooler (Standard on

Arrangement D and E only)

An evaporative cooler with 8-inch

media shall be provided. The

evaporative cooler shall be of a self

cleaning design with a stainless steel

water tank, regulated water flow and

overflow protection. The cooler shall

have a cabinet assembly of heavy-

gauge aluminized steel with

weatherproof finish, a UL recognized

thermally protected sealed recirculating

pump motor, two inch distribution pad,

and corrosion resistant PVC water

distribution tubes.

Fans

Centrifugal fan shall be belt driven,

forward curved with double inlet,

statically and dynamically balanced.

The blower wheel shall be fixed on a

keyed shaft, supported with rubber

grommet on bearing only, and ball

bearing secured. An access interlock

switch shall be installed in the blower

compartment and will disengage the

blower upon removing the service

panel. An override shall be

incorporated into the interlock switch

for serviceability.

Filters

Filter rack shall be constructed of

galvanized steel with access through

the side service panel. Standard filters

are one-inch permanent washable type.

Electrical Cabinet

Electrical cabinet shall be isolated from

the air stream with a non-removable

access panel interior to the outer

service panel. There is provision in this

cabinet for component mounting, wire

routing and high voltage isolation.

Motor and control wiring shall be

harnessed with terminal block

connections.

Controls

Standard units shall be provided with

24-volt combination single-stage

automatic gas valves, including main

operating valve and pilot safety shutoff,

pressure regulator, manual main and

pilot shutoff valve, and adjustable pilot

valve. Gas valves shall be suitable for

NEC Class 2 use for a maximum inlet

gas pressure of 0.5 psi (14 WC) on

natural gas. All rooftop units shall be

provided with a low voltage circuit

breaker rated for 150 percent of the

units normal 24-volt operating load.

Each duct furnace shall be provided

with a 24-volt high temperature limit

switch, a (redundant) combination gas

valve and a fan time delay relay. The

fan time delay relay minimizes cold

blasts of air on start-up. It also allows

the fan to operate after burner

shutdown, removing residual heat

from the heat exchanger. All rooftop

furnace units shall contain a reverse

airflow interlock switch. The normally

closed switch, when activated, shall

cause gas valves to close and continue

blower operation. All units provided

with a solid-state ignition control

system which ignites the intermittent

pilot by spark during each cycle of

operation. When pilot flame is proven,

main burner valve opens to allow gas

flow to the burners. Pilot and burners

are extinguished during the off cycle.

Rooftop

Heating Unit

110

Mechanical

Specifications

FACTORY INSTALLED OPTIONS

Control Options (Per Furnace)

Two-Stage Gas Valve

Provides two stages of heat. Ignition is

at low fire (one half of the units full

rated input). Requires the use of an

optional two-stage thermostat.

Hydraulic Modulating Gas Valve

Provides modulated heat output.

Ignition is at low fire (one half of the

units full rated input), and a discharge

air temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an automatic

electric valve in series with the

hydraulic valve which cycles the unit in

response to an optional low voltage

single-stage thermostat.

Hydraulic Modulating Gas Valve with

Bypass

Provides modulated heat output.

Ignition is at low fire (one-half of the

units full rated input), and a discharge

temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an automatic

electric valve in series with the

hydraulic valve which cycles the unit.

An additional electric valve in parallel

bypasses the hydraulic modulating

valve, overriding the discharge

temperature sensing bulb, allowing full

fire. Requires the use of an optional

thermostat to control the electric valve.

Electronic Modulating  Room or

Duct Stat Control

Provides modulated heat output. An

automatic valve in series with the

modulating valve shall be provided to

cycle the unit. Ignition is at full fire (100

percent input), and modulates the gas

input from 100 percent to 40 percent

rated input. Available for use with a

room thermostat or duct thermostat

with remote setpoint adjustment. Duct

thermostat available with optional

override room thermostat which

causes the unit to go to full fire when

the room temperature falls below the

override room thermostats setpoint.

Electronic Modulating  4-20 mA /

0-10 VDC Input

Provides modulated heat output.

Ignition is at full fire (100 percent input),

and modulates the gas input from 100

percent to 40 percent rated input. The

modulating gas valve shall operate in

response to a 4-20 mA or a 0-10 VDC

input from an external DDC control.

When furnace one only is specified

on double and triple furnaces,

additional furnace sections will have

single-stage on-off control.

Discharge Air Control with Outside

Air Reset

Unit provided with factory-mounted

discharge air controller, discharge air

sensor, outdoor air reset, summer/

winter thermostat and velocity

pressure switch. The outdoor air reset

range is from 10 F to 60 F. Full reset

occurs at 10 F outside air temperature.

There is a straight line relationship

between outside air temperature and

reset. Therefore, at 60 F outside air

temperature, no reset will occur. The

amount of reset is adjustable from 20 F

to 50 F. Discharge air controller

provides two minute delay between

successive on and off stages. A

summer/winter thermostat locks out

heating when outside air temperature

is above 55 F. The velocity pressure

switch is provided for protection

against high temperatures at low

airflows.

Available in two-stage (half of the units

full rated input), three-stage (33 percent

of the units full rated input) and four-

stage (25 percent of the units full rated

input). Three and four-stage available

on double and triple furnace units only.

S-350 Modular Electronic Control

System

Basic system utilizes a controller

module with discharge air sensor,

setpoint and one stage output, a stage

module with differential setpoint and

one-stage output and a display module

with LCD display for temperature

readout. The system stages the units

rate of fire based upon sensed

discharge air temperature, setpoint

setting and differential setting between

stages.

Provided as a two-stage (all furnaces),

three and four-stage (double and triple

furnaces only) and six-stage (triple

furnace only).

Heat Exchanger Options

Type 409 Stainless Steel (one or all

furnaces) Heat exchanger tubes and

headers shall be 20-gauge type 409

stainless steel. Burners and flue

collector shall be aluminized steel. 409

stainless steel is recommended when

outside air is used for make-up air in

areas where outside temperatures are

40 F or below.

Type 409 Stainless Steel Package

(one or all furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 409 stainless

steel. Burners and flue collector shall be

409 stainless steel. 409 stainless steel is

recommended where outside air is

used for make-up air in areas where

outside temperatures are 40 F or below.

Type 321 Stainless Steel (one or all

furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 321 stainless

steel. Burners and flue collector shall be

aluminized steel.

Type 321 Stainless Steel Package

(one or all furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 321 stainless

steel. Burners and flue collector shall be

409 stainless steel.

Motors  General

All motors shall be ball bearing type

with resilient base mount. Windings are

Class B, 1800 rpm with service

factors of 1/2 - 3/4 hp = 1.25 and 1 - 5 hp

= 1.15.

Single-Speed Open Drip-proof

60 HZ/1800 RPM

Single-Phase (with contactor) 

Optional 115V, 208V and 230V motors

available in 1/2 - 2 hp models.

Three-Phase (with contactor) 

Optional 208V, 230V and 460V motors

available in 1/2 - 5 hp models.

Single-Phase (with magnetic starter) 

Optional 115V,208V and 230V motors

available in 1/2 - 3 hp models.

Three-Phase (with magnetic starter) 

Optional 208V,230V,460V and 575V

motors available in 1/2 - 5 hp models.

111

Mechanical

Specifications

Single-Speed TEFC

60 HZ/1800 RPM

Single-Phase (with contactor) 

Optional 115V, 208V and 230V motors

available in 1/2 - 1 1/2 hp models.

Single-Phase (with magnetic starter) 

Optional 115V, 208V and 230V motors

available in 1/2 - 3 hp models.

Three-Phase (with magnetic starter) 

Optional 208V,230V,460V and 575V

motors available in 1/2 - 5 hp models.

Single Speed High Efficiency ODP

60 HZ/1800 RPM

Single-Phase (with contactor) 

Optional 115V and 230V motors

available in 1/2 - 1 hp models. Optional

208V motors available in 1/2 - 3/4 hp

models.

Single-Phase (with magnetic starter) 

Optional 115V and 230V motors

available in 1/2 - 2 hp models. Optional

208V motors available in 1/2 - 3/4 hp

models.

Three-Phase (with magnetic starter) 

Optional 208V,230V and 460V motors

available in 1/2 - 5 hp models. Optional

575V motors available in 1 - 5 hp

models.

Single-Speed High Efficiency TEFC

60 HZ/1800RPM

Single-Phase (with contactor) 

Optional 115V and 230V motors

available in 1/2 - 1 1/2 hp models.

Single-Phase (with magnetic starter) 

Optional 115V and 230V motors

available in 1/2 - 2 hp models.

Three-Phase (with magnetic starter) 

Optional 230V and 460V motors

available in 1/2 - 5 hp models. Optional

208V and 575V available in 1 - 5 hp

models.

Two-Speed/One Winding Motors

(THREE PHASE ONLY)

60 HZ/1800/900 RPM

Three Phase (with magnetic starter) 

Optional 208V, 230V and 460V motors

available in 1 - 5 hp models.

Two-Speed/Two Winding Motors

60 HZ/1800/1200 RPM

Single-Phase (with magnetic starter) 

Optional 115V and 230V motors

available in 1/2 - 1 hp models. Optional

208V motors available in 3/4 - 1 hp

models.

Three-Phase (with magnetic starter) 

Optional 208V and 230V motors

available in 1/2 - 5 hp models. Optional

460V motors available in 1/2 - 3 hp

models.

Manual Blower Switch

Manual blower switch shall be factory

installed in the electrical cabinet.

Damper Options

Dampers shall be of the opposed blade

type, constructed of galvanized steel

with neoprene nylon bushings, blades

to be mechanically interlocked.

Optional low leak dampers shall be of

the opposed blade type, construction

of galvanized steel with neoprene

nylon bushings and vinyl blade edge

seals, blades to be mechanically

interlocked.

Outside Air or Return Air/ Two-

Position Motor/ Spring Return

Units with outside air or return air only

shall be provided with damper, two

position spring return damper motor

and controls. The motor shall power

the damper full open when the unit is

on and full closed when the unit is off.

OA/RA Two-Position Spring Return

Two position spring return motor with

interlocked outside and return air

dampers shall be provided. The motor

shall power either the outside air

damper full open and the return air

damper full closed or the outside air

damper full closed and the return air

damper full open in response to an

outside air temperature sensor

(includes an outside air thermostat that

makes on a rise in temperature and

drives the damper open). When the

unit is off, the motor will drive the

outside air damper full closed and the

return air damper full open.

OA/RA Modulating Motor W/Mixed

Air Control/Min. Pot/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream. Units shall also be

provided with a minimum position

potentiometer for minimum outside air

damper position.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

OA/RA Modulating Motor W/Mixed

Air Control/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

OA/RA Modulating Motor W/Min

Pot/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall position the

outside and return air dampers in

response to a manually set

potentiometer.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

OA/RA Modulating Motor W/Dry

Bulb/Mixed Air Control/Min Pot/Spring

Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller and dry bulb

thermostat located in the mixed air

stream. Units shall also be provided

with a minimum position

potentiometer for minimum outside air

damper position.

The spring return feature drives the

outside air damper full open and the

return air damper full closed when the

unit is off.

OA/RA Modulating Motor W/

Enthalpy Controlled Economizer/SR

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to an enthalpy controlled

economizer. When the unit is off the

motor will drive the outside air damper

full closed and the return air damper

full open.

112

Mechanical

Specifications

OA/RA Modulating Motor with

Space Pressure Controller

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a pressure sensor located

in the building. Non-spring return.

OA/RA Modulating Motor W/S-350P

Proportional Mixed Air Control/SR

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a solid-state mixed air

sensor and S-350 Proportional

controller. When the unit is off the

motor will drive the outside air damper

full closed and the return air damper

full open.

OA/RA Mtr. W/External 4-20 mA or 0-

10VDC Analog Input/Spring Return

Modulating motor interlocked with

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a 4-10 mA

or 0-10VDC signal supplied by an

external DDC controller.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is shut down.

ASHRAE Cycle I - OA/RA 2 pos w/

warm-up stat/SR

Two position spring return motor with

interlocked outside and return air

dampers shall be provided. The motor

shall power the outside air damper full

open after a warm up period

determined by a minimum supply air

temperature sensor when the unit is

on, and full closed when the unit is off.

ASHRAE Cycle II - OA/RA Mod W/

Warm-up Stat/Mixed Air/Min Pot/

Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream after a warm up

period determined by a minimum

supply air temperature sensor. Units

shall also be provided with a minimum

position potentiometer for minimum

outside air damper position. When the

unit is off, the motor will drive the

outside air damper full closed and the

return air damper full open.

ASHRAE Cycle III - OA/RA Mod. W/

Warm-up Stat/Mixed Air/SR

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a thermostatic controller

located in the mixed air stream after a

warm up period determined by a

minimum supply air temperature

sensor. Units shall also be provided

with a minimum position

potentiometer for minimum outside air

damper position. When the unit is off,

the motor will drive the outside air

damper full closed and the return air

damper full open.

Manual Dampers

Units with outside air and return air

shall be provided with manually set

outside and return air dampers.

Additional Factory Installation Options

Firestat

If temperature reaches the setpoint, the

unit will close all gas valves, return the

dampers to their normal position and

shut down the blower. Manual reset.

Return Air Mounted (setpoint

typically 130 F) Standard on

Arrangement B-E. Utilized on these

arrangements as a reverse airflow

switch.

Supply Air Mounted (setpoint

typically 150 F)

Freezestat

Rooftop unit shall be provided with a

freezestat (0-100 F) with the sensing

bulb located in the discharge air

stream. Wired as an interlock to

prevent cold air discharge.

Orifices for Elevations over 2000 feet

12 Evaporative Media

12 media shall be provided for the

evaporative cooler.

409 Stainless Steel Furnace Drip Pan

Replaces the standard aluminized steel

furnace drip pan.

Foil Face Insulation

Fan section and supply plenum (when

provided) shall be insulated with one-

inch foil face insulation. Conforms with

ASHRAE Standard 62-1989.

Clogged Filter Switch

A clogged filter pressure switch with

adjustable operating range and

normally open switch shall be installed

to sense increased suction pressure by

the blower due to filter obstruction.

Provision for remote indication shall be

provided by terminal block connection

points. Includes a status lamp mounted

in the electrical cabinet.

Moisture Eliminators

Provided in place of an inlet screen on

the outside air hood. Includes a

pressure switch.

Horizontal Return

Unit shall be supplied with the return

air opening at or under the outside air

opening location depending on the Air

Inlet Configuration.

113

Mechanical

Specifications

Continuous Fan Relay  24V Coil

DPDT 10A

Relay provided with 24 volt coil and

double pole double throw 10 amp

contacts. Plugs into the main

connection PC board in the electrical

cabinet. Included as standard on

Arrangement D and E . May also be

utilized as an exhaust fan interlock.

Interlock Relay  24/115V Coil SPDT

10A

Relay has a selectable coil voltage of 24

or 115 volts and single pole double

throw 10 amp contacts with LED on

indicator lamp. Relay is utilized as an

auxiliary relay.

Interlock Relay  24/115-230V Coil

DPDT 10A

Relay has a selectable coil voltage of

24, 115 or 230 volts and double pole

double throw 10 amp contacts. Utilized

as an auxiliary relay for general

purpose duty.

High/Low Gas Pressure Limit

Switches

A high pressure and a low pressure

interlock switch and shutoff valve shall

be provided for each furnace section.

High/low gas pressure limits disengage

heating upon detecting either high line

pressure or low manifold pressure.

Status Indicator Lamps (Electrical

Cabinet)

Status indicator lamps shall include

power on, blower on and one lamp per

stage of heat mounted in the electrical

cabinet.

Ambient Lockout

Airflow Proving Switch

Field Installed Accessories

High Gas Line Pressure Regulator

Reduces main gas line pressure to a

minimum of 7-inches WC. Pressure at

the jobsite must be specified. The

regulator is selected to accommodate

that specific pressure.

Manual Reset High Limit Switch

The rooftop unit shall be provided with

a manual reset high limit switch wired

in series to the lead furnace high limit.

If the setpoint is reached, the gas valve

will close and the blower will continue

to run until the sensed temperature is

below the setpoint.

Remote Control Station

Wall mounted. Provides six LED status

lamps with System On/Off, Fan Auto/

On, Heat Auto/Off, Cool Auto/Off,

Auxiliary On/Off switching and

Modulating damper potentiometer

mounting. Designed for easy

installation with plug-in terminal block

wiring and wall mounting bracket.

(Auxiliary On/Off may be used with the

Evaporative Cooler fill and drain kit.)

Seven-Day Timeclock

Provides single pole double throw

(SPDT) relay output at setpoint time

with maximum six setpoints per day.

24-Hour Timeclock

Provides single pole double throw

(SPDT) relay output at setting time

with maximum 12 setpoints per day.

Disconnect Switch

115 V Convenience Outlet

GFI (Ground Fault Convenience Outlet)

is manual reset with weatherproof

enclosure (requires separate 115V

power source)

Roof Mounting Curb

Roof curb shall be shipped

unassembled with hardware package

and gasket attached. Curb and rail

shall total 16-inches high and supplied

with a cross-member which allows the

isolation of the return and supply air

streams (when supplied). Roof curbs

can be supplied with one-inch

fiberglass insulation.

Evaporative Cooler Platform

Provides mounting support for

evaporative cooler only.

Fill and Drain Kit

Includes three-way valve and relay for

automatic fill and drain for the

evaporative coolers. Optional freezestat

provides automatic shutoff and drain

upon meeting outside air setpoint.

Optional Filters (One-inch permanent

standard)

Two-inch Permanent

Two-inch Throwaway

One-inch 30 percent Pleated Media

Two-inch 30 percent Pleated Media

THERMOSTATS

Low voltage room thermostat, single

stage with fan auto-on-switch and

system heat-off cool switch

Low voltage room thermostat, single

stage with fan auto-on switch

Low voltage room thermostat, two-

stage with fan auto-on switch and

system off-heat-auto-cool switch

Low voltage programmable room

thermostat, two-stage with LCD

display, fan auto-on switch and system

off-heat-auto-cool switch.

Universal tamperproof guard for all

room thermostats

Low voltage duct thermostat, single-

stage

Low voltage duct thermostat, two-

stage

Room thermostat, electronic

modulating control

Duct thermostat, electronic

modulating control

Duct thermostat, electronic

modulating control with override room

thermostat

114

Mechanical

Specifications

Rooftop

Heating Unit

Arrangement G, J, K, L

GENERAL

Units shall be completely factory

assembled, piped, wired and test fired.

All units shall contain duct furnaces

that are AGA and CGA certified and

conform with the latest ANSI

Standards for safe and efficient

performance. Units shall be mounted

on metal rails with lifting and anchor

holes and shall be suitable for slab or

curb mounting. Units shall be available

for operation on either natural or LP

(propane) gas.

The firing rate of each furnace will not

exceed 400 MBh and shall contain its

own heat exchanger, flue collector,

venting, burners, safety and ignition

controls. All units shall be ETL or UL

certified for electrical safety in

compliance with UL 1995 safety

standard for heating, ventilating and

cooling equipment. All units shall be in

compliance with FM (Factory Mutual)

requirements.

ELECTRICAL

Standard control relays shall be socket

mounted with terminal block

connections. All control wiring shall

terminate at terminal strips (single

point connection) and include an

identifying marker corresponding to

the wiring diagram. Motor and control

wiring shall be harnessed with terminal

block connections.

Casing

Casings shall be die-formed, 18-gauge

galvanized steel and finished in air-dry

enamel. Service and access panels

shall be provided through easily

removable side access panels with

captive fasteners. Fan sections and

supply plenums (when provided) shall

be insulated with fire resistant,

odorless, matte-faced one-inch glass

fiber material. Outside air hoods, when

provided, ship with a wire mesh inlet

screen.

Heat Exchanger

Standard heat exchanger construction

shall consist of 20-gauge aluminized

steel tubes and 18-gauge aluminized

steel headers. Standard drip pan

construction shall be corrosion

resistant aluminized steel.

Flue Collector

Standard flue collector construction

shall be corrosion resistant aluminized

steel.

Venting System

Natural vent units shall be provided

with a vent cap designed for gravity

venting. Outside air for combustion

enters at the base of the vent cap

through a protective grille, and

products of combustion are discharged

through the upper section of the flue

vent cap.

Power vent units shall be provided with

a vent fan. Outside air for combustion

and products of combustion shall have

individual air inlet and discharge grilles

located in the upper section of the

furnace service panel. An air proving

switch shall be installed and disengage

gas flow if for any reason the draftor

has failed to operate. Power venting

and 100 percent shutoff ignition

systems are required for compliance

with IRI (Industrial Risk Insurers).

Burners

Burners shall be die-formed, corrosion

resistant aluminized steel, with

stamped porting and stainless steel

port protectors. Port protectors prevent

foreign matter from obstructing the

burner ports. Burners are individually

removable for ease of inspection and

servicing. The entire burner assembly

is easily removed with its slide-out

drawer design. The pilot shall be

accessible through an access plate

without removing the burner drawer

assembly.

Coil Section (Standard on

Arrangement K and L only)

A coil section, constructed of

galvanized steel, shall be provided with

the unit. This section shall be insulated

with fire resistant, odorless, matte-

faced one-inch glass fiber material.

Fans

Centrifugal fan shall be belt driven,

forward curved with double inlet,

statically and dynamically balanced.

The blower wheel shall be fixed on a

keyed shaft, supported with rubber

grommet on bearing only and ball

bearing secured. 7 1/2 through 15 hp

motors do not have the rubber

grommets and are equipped with a

pillow block bearing assembly on the

drive side. An access interlock switch

shall be installed in the blower

compartment and will disengage the

blower upon removing the service

panel. An override shall be

incorporated into the access interlock

switch for serviceability.

Filters

Filter rack shall be of v-bank design for

minimal pressure drop and be

constructed of galvanized steel with

access through the side service panel.

Standard filters are one-inch

permanent washable type.

Electrical Cabinet

Electrical cabinet shall be isolated from

the air stream with a non-removable

access panel interior to the outer

service panel. There is provision in this

cabinet for component mounting, wire

routing and high voltage isolation.

Motor and control wiring shall be

harnessed with terminal block

connections.

Controls

Standard units shall be provided with

24-volt combination single-stage

automatic gas valves, including main

operating valve and pilot safety

shutoff, pressure regulator, manual

main and pilot shutoff valve, and

adjustable pilot valve. Gas valves shall

be suitable for NEC Class 2 use for a

maximum inlet gas pressure of 0.5 psi

(14 WC) on natural gas. All rooftop

units shall be provided with a low

voltage circuit breaker rated for 150

percent of the units normal 24-volt

operating load.

Each duct furnace shall be provided

with a 24-volt high temperature limit

switch, a (redundant) combination gas

valve and a fan time delay relay. The

fan time delay relay minimizes cold

blasts of air on start-up. It also allows

the fan to operate after burner

shutdown, removing residual heat

from the heat exchanger. All rooftop

furnace units shall contain a reverse

airflow interlock switch. The normally

closed switch, when activated, shall

cause gas valves to close and continue

blower operation. All units provided

with a solid state ignition control

system which ignites the intermittent

pilot by spark during each cycle of

operation. When pilot flame is proven,

main burner valve opens to allow gas

flow to the burners. Pilot and burners

are extinguished during the off cycle.

115

Mechanical

Specifications

FACTORY INSTALLED OPTIONS

Control Options (Per Furnace)

Two-Stage Gas Valve

Provides two stages of heat. Ignition is

at low fire (one half of the units full

rated input). Requires the use of an

optional two-stage thermostat.

Hydraulic Modulating Gas Valve

Provides modulated heat output.

Ignition is at low fire (one-half of the

units full rated input), and a discharge

air temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an automatic

electric valve in series with the

hydraulic valve which cycles the unit in

response to an optional low voltage

single-stage thermostat.

Hydraulic Modulating Gas Valve with

Bypass

Provides modulated heat output.

Ignition is at low fire (one-half of the

units full rated input), and a discharge

temperature sensing bulb located in

the air stream shall modulate the gas

input from 40 percent to 100 percent

rated input. Provided with an automatic

electric valve in series with the

hydraulic valve which cycles the unit.

An additional electric valve in parallel

bypasses the hydraulic modulating

valve, overriding the discharge

temperature sensing bulb, allowing full

fire. Requires the use of an optional

thermostat to control the electric valve.

Electronic Modulating  Room or

Duct Stat Control

Provides modulated heat output. An

automatic valve in series with the

modulating valve shall be provided to

cycle the unit. Ignition is at full fire (100

percent input), and modulates the gas

input from 100 percent to 40 percent

rated input. Available for use with a

room thermostat or duct thermostat

with remote setpoint adjustment. Duct

thermostat available with optional

override room thermostat which

causes the unit to go to full fire when

the room temperature falls below the

override room thermostats setpoint.

Electronic Modulating  4-20 mA/ 0-

10 VDC Input

Provides modulated heat output.

Ignition is at full fire (100 percent input),

and modulates the gas input from 100

percent to 40 percent rated input.

The modulating gas valve shall operate

in response to a 4-20 mA or a 0-10 VDC

input from an external DDC control.

When furnace one only is specified

on double and triple furnaces,

additional furnace sections will have

single-stage on-off control.

VAV Control

Unit provided with factory-mounted

discharge air controller, discharge air

sensor, outdoor air reset, summer/

winter thermostat and velocity

pressure switch. The outdoor air reset

range is from 10 F to 60 F. Full reset

occurs at 10 F outside air temperature.

There is a straight line relationship

between outside air temperature and

reset. Therefore, at 60 F outside air

temperature, no reset will occur. The

amount of reset is adjustable from 20 F

to 50 F. Discharge air controller

provides two-minute delay between

successive on and off stages. A

summer/winter thermostat locks out

heating when outside air temperature

is above 55 F. The velocity pressure

switch is provided for protection

against high temperatures at low

airflows.

Available in two-stage (half of the units

full rated input), three-stage (33 percent

of the units full rated input) and four-

stage (25 percent of the units full rated

input). Three and four-stage available

on double and triple furnace units only.

S-350 Modular Electronic Control

System

Basic system utilizes a controller

module with discharge air sensor,

setpoint and one-stage output, a stage

module with differential setpoint and

one-stage output and a display module

with LCD display for temperature

readout. The system stages the units

rate of fire based upon sensed

discharge air temperature, setpoint

setting and differential setting between

stages.

Provided as a two-stage (all furnaces),

three and four-stage (double and triple

furnaces only) and six-stage (triple

furnace only).

Heat Exchanger Options

Type 409 Stainless Steel (one or all

furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 409 stainless

steel. Burners and flue collector shall

be aluminized steel. 409 stainless steel

is recommended when outside air is

used for make-up air in areas where

outside temperatures are 40 F or

below.

Type 409 Stainless Steel Package

(one or all furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 409 stainless

steel. Burners and flue collector shall

be 409 stainless steel. 409 stainless

steel is recommended where outside

air is used for make-up air in areas

where outside temperatures are 40 F or

below.

Type 321 Stainless Steel (one or all

furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 321 stainless

steel. Burners and flue collector shall

be aluminized steel.

Type 321 Stainless Steel Package

(one or all furnaces)

Heat exchanger tubes and headers

shall be 20-gauge type 321 stainless

steel. Burners and flue collector shall

be 409 stainless steel.

116

Motors  General

All motors shall be ball bearing type

with resilient base mount and NEMA

frame sizes from 48 to 256T. Windings

are Class B, 1800 rpm with service

factors of 1/2 - 3/4 hp = 1.25 and 1 - 15 hp

= 1.15.

Single-Speed Open Drip-proof

60 HZ/1800 RPM

Single-Phase (with contactor) 

Optional 115V, 208V and 230V motors

available in 1/2 - 2 hp models.

Three-Phase (with contactor) 

Optional 208V, 230V and 460V motors

available in 1/2 - 5 hp models.

Single-Phase (with magnetic starter) 

Optional 115V, 208V and 230V motors

available in 1/2 - 3 hp models.

Three-Phase (with magnetic starter) 

Optional 208V, 230V, 460V and 575V

motors available in 1/2-15 hp models.

Single-Speed TEFC

60HZ/1800 RPM

Single-Phase (with contactor) 

Optional 115V, 208V and 230V motors

available in 1/2 - 1 1/2 hp models.

Single-Phase (with magnetic starter) 

Optional 115V, 208V and 230V motors

available in 1/2 - 3 hp models.

Three-Phase (with magnetic starter) 

Optional 208V, 230V, 460V and 575V

motors available in 1/2 - 15 hp models.

Single-Speed High Efficiency ODP

60 HZ/1800 RPM

Single-Phase (with contactor) 

Optional 115V and 230V motors

available in 1/2 - 1 hp models. Optional

208V motors available in 1/2 - 3/4 hp

models.

Single-Phase (with magnetic starter) 

Optional 115V and 230V motors

available in 1/2 - 2 hp models. Optional

208V motors available in 1/2 - 3/4 hp

models.

Three-Phase (with magnetic starter) 

Optional 208V,230V and 460V motors

available in 1/2 - 15 hp models. Optional

575V motors available in 1 - 15 hp

models.

Single-Speed High Efficiency TEFC

60 HZ/1800RPM

Single-Phase (with contactor) 

Optional 115V and 230V motors

available in 1/2 - 1 1/2 hp models.

Single-Phase (with magnetic starter) 

Optional 115V and 230V motors

available in 1/2 - 2 hp models.

Three-Phase (with magnetic starter) 

Optional 230V and 460V motors

available in 1/2 - 15 hp models. Optional

208V and 575V available in 1 - 15 hp

models.

Two-Speed/One Winding Motors

(Three-Phase Only)

60 HZ/1800/900 RPM

Three-Phase (with magnetic starter) 

Optional 208V, 230V and 460V motors

available in 1 - 15 hp models.

Two-Speed/Two Winding Motors

60 HZ/1800/1200 RPM

Single-Phase (with magnetic starter) 

Optional 115V and 230V motors

available in 1/2 - 1 hp models. Optional

208V motors available in 3/4 - 1 hp

models.

Three-Phase (with magnetic starter) 

Optional 208V and 230V motors

available in 1/2 - 15 hp models. Optional

460V motors available in 1/2 - 3 hp and 7

1/2 - 10 hp models. Optional 575V

motors available in 7 1/2 - 10 hp models.

Manual Blower Switch

Manual blower switch shall be factory

installed in the electrical cabinet.

DX or Chilled Water Cooling Coils

A direct expansion (DX) or chilled

water coil certified by ARI shall be

provided with the unit.

Damper Options

Dampers shall be of the opposed blade

type, constructed of galvanized steel

with neoprene nylon bushings, blades

to be mechanically interlocked.

Optional low leak dampers shall be of

the opposed blade type, construction

of galvanized steel with neoprene

nylon bushings and vinyl blade edge

seals, blades to be mechanically

interlocked.

Outside Air or Return Air/ Two-

Position Motor/ SR  Units with

outside air or return air only shall be

provided with damper, two-position

spring return damper motor and

controls. The motor shall power the

damper full open when the unit is on

and full closed when the unit is off.

OA/RA Two-Position SR

Two position spring return motor with

interlocked outside and return air

dampers shall be provided. The motor

shall power either the outside air

damper full open and the return air

damper full closed or the outside air

damper full closed and the return air

damper full open in response to an

outside air temperature sensor

(Includes an outside air thermostat that

makes on a rise in temperature and

drives the damper open). When the

unit is off, the motor will drive the

outside air damper full closed and the

return air damper full open.

OA/RA Mod Mtr. W/Mixed Air

Control/Min. Pot/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream. Units shall also be

provided with a minimum position

potentiometer for minimum outside air

damper position.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

OA/RA Mod Mtr. W/Mixed Air

Control/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

OA/RA Mod Mtr W/Min Pot/Spring

Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall position the

outside and return air dampers in

response to a manually set

potentiometer.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is off.

Mechanical

Specifications

117

Mechanical

Specifications

OA/RA Mod Mtr W/Dry Bulb/Mixed

Air Control/Min Pot/Spring Return

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller and dry bulb

thermostat located in the mixed air

stream. Units shall also be provided

with a minimum position

potentiometer for minimum outside air

damper position.

The spring return feature drives the

outside air damper full open and the

return air damper full closed when the

unit is off.

OA/RA Mod Mtr W/Enthalpy

Controlled Economizer/SR

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to an enthalpy controlled

economizer. When the unit is off the

motor will drive the outside air damper

full closed and the return air damper

full open.

OA/RA Mod Mtr W/ Space Pressure

Controller

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a pressure sensor located

in the building. Non-spring return.

OA/RA Mod Mtr W/S-350P

Proportional Mixed Air Control/SR

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a solid-state mixed air

sensor and S-350 proportional

controller. When the unit is off the

motor will drive the outside air damper

full closed and the return air damper

full open.

OA/RA Mtr. W/External 4-20 mA or 0-

10VDC Analog Input/Spring Return

Modulating motor interlocked with

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a 4-10 mA

or 0-10VDC signal supplied by an

external DDC controller.

The spring return feature drives the

outside air damper full closed and the

return air damper full open when the

unit is shut down.

ASHRAE Cycle I (OA/RA Two-

Position w/warm-up stat/SR)

Two-position spring return motor with

interlocked outside and return air

dampers shall be provided. The motor

shall power the outside air damper full

open after a warm up period

determined by a minimum supply air

temperature sensor when the unit is

on, and full closed when the unit is off.

ASHRAE Cycle II (OA/RA Mod W/

Warm-up Stat/Mixed Air/Min Pot/

Spring Return)

Modulating motor with interlocked

outside and return air dampers shall be

provided. The motor shall modulate

the position of the outside and return

air dampers in response to a

thermostatic controller located in the

mixed air stream after a warm-up

period determined by a minimum

supply air temperature sensor. Units

shall also be provided with a minimum

position potentiometer for minimum

outside air damper position. When the

unit is off, the motor will drive the

outside air damper full closed and the

return air damper full open.

ASHRAE Cycle III (OA/RA Mod. W/

Warm-up Stat/Mixed Air/SR

Modulating motor with spring return

and interlocked outside and return air

dampers shall be provided. The motor

shall modulate the position of the

outside and return air dampers in

response to a thermostatic controller

located in the mixed air stream after a

warm-up period determined by a

minimum supply air temperature

sensor. Units shall also be provided

with a minimum position

potentiometer for minimum outside air

damper position. When the unit is off,

the motor will drive the outside air

damper full closed and the return air

damper full open.

Manual Dampers

Units with outside air and return air

shall be provided with manually set

outside and return air dampers.

Additional Factory Installed

Options

Firestat

If temperature reaches the setpoint, the

unit will close all gas valves, return the

dampers to their normal position and

shut down the blower. Manual reset.

Return Air Mounted (setpoint

typically 130 F) Standard on

Arrangement G-L. Utilized on these

arrangements as a reverse airflow

switch.

Supply Air Mounted (setpoint

typically 150 F)

Freezestat

Rooftop unit shall be provided with a

freezestat (0-100 F) with the sensing

bulb located in the discharge air

stream. Wired as an interlock to

prevent cold air discharge.

Orifices for Elevations over 2000 feet

409 Stainless Steel Furnace Drip Pan

Replaces the standard aluminized steel

furnace drip pan.

Foil Face Insulation

Fan section and supply plenum (when

provided) shall be insulated with one-

inch foil face insulation. Conforms with

ASHRAE Standard 62-1989.

Clogged Filter Switch

A clogged filter pressure switch with

adjustable operating range and

normally open switch shall be installed

to sense increased suction pressure by

the blower due to filter obstruction.

Provision for remote indication shall be

provided by terminal block connection

points. Includes a status lamp mounted

in the electrical cabinet.

Moisture Eliminators

Provided in place of an inlet screen on

the outside air hood. Includes a

pressure switch.

Horizontal Return

Unit shall be supplied with the return

air opening at or under the outside air

opening location depending on the Air

Inlet Configuration.

Continuous Fan Relay  24V Coil

DPDT 10A

Relay provided with 24-volt coil and

double pole double throw 10 amp

contacts. Plugs into the main

connection PC board in the electrical

cabinet. May also be utilized as an

exhaust fan interlock.

118

Mechanical

Specifications

Interlock Relay  24/115V Coil SPDT

10A

Relay has a selectable coil voltage of 24

or 115-volts and single pole double

throw 10 amp contacts with LED on

indicator lamp. Relay is utilized as an

auxiliary relay.

Interlock Relay  24/115-230V Coil

DPDT 10A

Relay has a selectable coil voltage of

24, 115 or 230-volts and double pole

double throw 10 amp contacts. Utilized

as an auxiliary relay for general

purpose duty.

High/Low Gas Pressure Limit

Switches

A high pressure and a low pressure

interlock switch and shutoff valve shall

be provided for each furnace section.

High/low gas pressure limits disengage

heating upon detecting either high line

pressure or low manifold pressure.

Status Indicator Lamps (Electrical

Cabinet)

Status indicator lamps shall include

power on, blower on and one lamp per

stage of heat mounted in the electrical

cabinet.

Ambient Lockout

Airflow Proving Switch

Field Installed Accessories

Manual Reset High Limit Switch

The rooftop unit shall be provided with

a manual reset high limit switch wired

in series to the lead furnace high limit.

If the setpoint is reached, the gas valve

will close and the blower will continue

to run until the sensed temperature is

below the setpoint.

High Gas Line Pressure Regulator

Reduces main gas line pressure to a

minimum of 7-nches WC. Pressure at

the jobsite must be specified. The

regulator is selected to accommodate

that specific pressure.

Remote Control Station

Wall mounted. Provides six LED status

lamps with System On/Off, Fan Auto/

On, Heat Auto/Off, Cool Auto/Off,

Auxiliary On/Off switching and

Modulating damper potentiometer

mounting. Designed for easy

installation with plug-in terminal block

wiring and wall mounting bracket.

(Auxiliary On/Off may be used with the

Evaporative Cooler fill and drain kit.)

Seven-Day Timeclock

Provides single pole double throw

(SPDT) relay output at setpoint time

with maximum six setpoints per day.

24-Hour Timeclock

Provides single pole double throw

(SPDT) relay output at setting time with

maximum 12 setpoints per day.

Disconnect Switch

115V Convenience Outlet

GFI (Ground Fault Convenience Outlet)

is manual reset with weatherproof

enclosure (requires separate 115V

power source).

Roof Mounting Curb

Roof curb shall be shipped

unassembled with hardware package

and gasket attached. Curb and rail shall

total 16-inches high and supplied with

a cross-member which allows the

isolation of the return and supply air

streams (when supplied).

Roof curb can be supplied with one-

inch fiberglass insulation.

Optional Filters (One-inch permanent

standard)

Two-inch permanent

Two-inch Throwaway

One-inch 30 percent Pleated Media

Two-inch 30 percent Pleated Media

THERMOSTATS

Low voltage room thermostat,

single-stage with fan auto-on-switch

and system heat-off cool switch

Low voltage room thermostat,

single-stage with fan auto-on switch

Low voltage room thermostat, two-

stage with fan auto-on switch and

system off-heat-auto-cool switch

Low voltage programmable room

thermostat, two stage with LCD display,

fan auto-on switch and system off-heat-

auto-cool switch.

Universal tamperproof guard for all

room thermostats

Low voltage duct thermostat, single-

stage

Low voltage duct thermostat, two-

stage

Room thermostat, electronic

modulating control

Duct thermostat, electronic

modulating control

Duct thermostat, electronic

modulating control with override room

thermostat

Evaporative Cooler

General

An evaporative cooler with 8-inch

media shall be provided. The

evaporative cooler shall be of a self-

cleaning design with a stainless steel

water tank, regulated water flow and

overflow protection. The cooler shall

have a cabinet assembly of heavy-

gauge aluminized steel with

weatherproof finish, a UL recognized,

thermally protected sealed recirculating

pump motor, two-inch distribution pad,

and corrosion resistant PVC water

distribution tubes.

Factory Installed Options

12 Evaporative Media

12 media shall be provided for the

evaporative cooler.

Field Installed Accessories

Evaporative Cooler Platform

Provides mounting support for

evaporative cooler only

Fill and Drain Kit

Includes three-way valve and relay and

automatic fill and drain for the

evaporative cooler.

Freezestat

Freezestat provides automatic shutoff

and drain upon meeting outside air

setpoint.

Library Product Literature

Product Section Air Handling

Product Make-Up Air

Model 000

Literature Type Data Sales Catalog

Sequence 5

Date January 1998

File No. PL-AH-MUA-000-DS-5-198

Supersedes MUA-DS-5 595

Ordering No. MUA-DS-5

North American Commercial Group

The Trane Company

3600 Pammel Creek Road

La Crosse, WI 54601-7599

www.trane.com

An American Standard Company

Since The Trane Company has a policy of continuous

product improvement, it reserves the right to change

design and specification without notice.