Bryant Commercial Single Package Rooftop Gas Heat Electric Cooling 581B Users Manual

COMMERCIAL SINGLE PACKAGE ROOFTOP GAS HEAT/ELECTRIC COOLING 581B a423d268-d56d-4b50-91fa-3f5d20db01b1

581B to the manual a423d268-d56d-4b50-91fa-3f5d20db01b1

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Form No. PDS 581B.36.5

COMMERCIAL

SINGLE PACKAGE ROOFTOP

GAS HEAT/ELECTRIC COOLING

UNITS

Bryant has designed the DuraPac Plus series based on

customer needs and requests to be the most efficient and reli-

able ever.

FEATURES/BENEFITS

• Efficient rooftop line for cooling using scroll compressor

technology

• Efficient rooftop line for heating using dimpled heat

exchangers

• High reliability — non-corrosive condensate pans, prepainted

cabinets and primed interior panels, and all units are fully

protected by internal safeties

• Quiet operation — isolated compressor plate. All compres-

sors mounted on independent vibration isolators. Standard,

belt-driven evaporator fan motors on all units

• Ease of maintenance achieved by self diagnostics on the

Integrated Gas Controller (IGC), standard size filters, no tool

filter access, simple compressor access, permanently lubri-

cated fan motors, optional disconnect switch, optional hinged

access panels, and optional 115-v convenience outlet

• Performance and comfort enhancing options — High-static

motors and Perfect Humidity™ dehumidification package.

BRYANT MEANS TOP QUALITY AND RELIABILITY —

Each component utilized in the DuraPac Plus series is

designed and tested for a minimum of 15 years operation

under the harshest conditions.

Every unit is thoroughly run tested at the factory in each oper-

ating mode and evacuated prior to final charging. Every coil is

leak-tested with helium particles. Automated run testing allows

accurate undisputed tests and measurements which are sec-

ond to none in the industry.

Each unit contains a factory printout indicating tested pres-

sures, amperages, dates, and inspectors, providing certifica-

tion of the unit’s status at the time of manufacture.

Units are equipped with valuable safety controls designed to

monitor and protect for the life of the unit. The standard safe-

ties include:

• low-pressure/loss-of-charge switch

• high-pressure switch

• freeze-protection thermostat

• internal compressor overload

• exclusive Cycle-LOC™ circuit board that prevents compres-

sor cycling

• refrigerant filter drier

The cabinet is constructed of galvanized steel, bonderized and

coated with a prepainted baked enamel finish. The paint finish

is a non-chalking type, and is capable of exceeding Federal

Test Method Standard No. 141 (Method 6061) 500-Hour Salt

Spray Test. In addition, all cabinet interior surfaces are primed,

allowing the entire unit to have a longer life and more attractive

appearance.

EASY MAINTENANCE AND INSTALLATION

All Units are Factory Shipped in the Vertical Discharge

Configuration for fit-up to standard roof curbs. (One acces-

sory curb fits sizes 036-072; another accessory curb fits

sizes 090-150.) Contractors can order and install the roof curbs

early in the construction stage, before decisions on size

requirements have been made.

All Units Feature Heavy-Gage Roll-Formed Baserail design

with forklift slots on 3 sides of the unit and rigging holes for

easier maneuvering and installation. Stretch-wrap packaging

protects the unit during shipment and storage.

Units are Easily Converted from vertical to horizontal applica-

tions to make retrofit and add-on jobs easier. To convert from

vertical to horizontal discharge, simply relocate 2 panels. The

same basic unit can be used for a variety of applications and

can be quickly modified at the jobsite.

Standard high-performance, belt-driven, evaporator-fan motors

enable 581B036-150 units to operate in most ductwork

configurations.

Ductwork Connections are Made Easy by the logical 2 to 1

aspect ratio. On vertical discharge units, ductwork attaches

directly to the roof curb.

Model 581B

DuraPac Plus Series

Sizes 036-150

3 to 121/2 Tons

Unit 581B036-072 Unit 581B090-150

2

FEATURES/BENEFITS (cont)

BALL BEARING, PERMANENTLY-

LUBRICATED MOTORS

PREMIUM QUALITY

SCROLL COMPRESSORS

DIMPLED HEAT

EXCHANGERS

BELT DRIVEN

EVAPORATOR FANS

FACTORY-INSTALLED

OPTIONAL

CONVENIENCE OUTLET

REFRIGERATION

SYSTEM

PROTECTION

FACTORY-INSTALLED

OPTIONAL

DISCONNECT SWITCH

FULLY MODULATING

ECONOMIZER (OPTION OR ACCESSORY)

HIGH-EFFICIENCY COILS

ON-SITE CONVERTIBILITY

FROM VERTICAL TO

HORIZONTAL DISCHARGE

HIGH-EFFICIENCY

COILS AND

FIXED ORIFICE

REFRIGERANT

METERING DEVICE

SINGLE PIECE

TOP PANEL

NO TOOL

FILTER ACCESS

SLEEVE BEARING PERMANENTLY-

LUBRICATED MOTORS

SLOPED,

NON-CORROSIVE

CONDENSATE

DRAIN PAN

3

FEATURES/BENEFITS (cont)

Thru-the-Bottom Service Connection Capability comes

standard with the rooftop unit to allow power and control wiring

to be routed through the unit’s basepan, thereby minimizing roof

penetrations (to prevent water leaks). Both power and control

connections are made on the same side of the unit to simplify

installation.

The Non-Corrosive, Sloped, Condensate Drain Pan is

standard and in conformance with ASHRAE (American Society

of Heating, Refrigeration, and Air Conditioning Engineers)

Standard 62 to meet many Indoor Air Quality (IAQ) specifica-

tions. The condensate drain pan offers both bottom and end

drain capability to minimize roof penetrations. The bottom drain

can be used in conjunction with thru-the-bottom connections.

An external trap must be field supplied.

Standard 2-in. Throwaway Filters are easily accessed

through an easily removable filter access panel located directly

above the air intake hood; no tools are required to change the

filters.

All Units are Designed with a Single Continuous Top Piece

to eliminate leaking at the seams or gasketing, which tends to

deteriorate over time and shift during rigging procedures.

Belt-Driven Evaporator-Fan Motors allow maximum on-site

flexibility without changing motors or drives.

Low-Voltage Wiring Connections are easily made due to the

large terminal board which is conveniently located for quick,

simple access.

QUIET, EFFICIENT OPERATION AND DEPENDABLE

PERFORMANCE

All Units are Equipped With Scroll Compressors which are

fully hermetic with internal vibration isolators for extremely quiet

operation. The scroll compressors are quieter and more reliable

than reciprocating designs. Compressors are mounted on an

independent plate for additional sound integrity and structural

support. Efficient condenser fan and motor design permits

operation at low sound levels.

Totally Enclosed Condenser-Fan Motors and permanently

lubricated bearings provide additional dependability.

All Coils Use State-of-the-Art Internally Enhanced Copper

Tubing — Coils are thoroughly tested with helium particles as

well as pressure tested at the factory. Condenser coils have lou-

vered, aluminum lanced fins to provide maximum heat transfer

for optimum efficiency and easy cleaning.

Exclusive Dimpled Heat Exchangers optimize heat transfer

for improved efficiency. The tubular design permits hot gases to

make multiple passes across the path of the supply air. In addi-

tion, dimpled heat exchanger tubes act as baffles, forcing the

hot gases to stay in close contact with the cell walls to maximize

heat transfer and efficiency.

The California Air Quality Management NOx requirement of

40 nanograms/joule or less is met with Low kit NOx models in

036-060 sizes.

The Induced Draft Combustion System eliminates the

unsightly appearance of flue stacks, and diminishes the effects

of winds on heating operation. The inducer fan draws hot com-

bustion gas through the heat exchanger at the optimum rate for

the most effective heat transfer. The induced draft (negative

pressure) also prevents contaminants from entering the supply

air if a leak in the heat exchanger occurs.

The Direct Spark Ignition System saves operating expense

when compared to old-style pilot ignition systems. No crossover

tube is required, therefore no sooting or pilot fouling problems

can occur.

LP (Liquid Propane) Conversion Kit — Standard units are

designed for natural gas. An LP Conversion Kit is available as

an accessory, if required. Installation of the accessory LP kit

simply involves changing the gas orifices to accommodate liq-

uid propane gas.

Refrigerant Circuit Protection assures dependability. All units

have standard:

1) loss-of-charge/low-pressure protection switch which allows

operation at lower ambient conditions while protecting

against low-charge operation

2) freeze-protection thermostat, which protects against evapo-

rator coil frost build-up

3) high-pressure switch, which protects against above normal

operating pressure

4) filter driers, which trap moisture and debris in the refrigera-

tion system.

5) Bryant’s exclusive fixed orifice metering device, which pre-

cisely controls refrigerant flow, preventing slugging and

floodback, while maintaining optimum unit performance by

metering the circuits individually.

Two Independent Compressor Circuits (all 71/2 to 121/2 ton

units) provide pinpoint comfort control, improved efficiency, and

back-up capability.

The Standard Control System is readily adaptable to all con-

ventional thermostats.

Integrated Gas Unit Controller (IGC) — All ignition compo-

nents are contained in the compact Integrated Gas Controller

(IGC) that is easily accessible for service. The IGC provides

built in diagnostic capabilities. An LED simplifies troubleshoot-

ing by providing visual fault notification and system status infor-

mation. The IGC board provides exclusive anti-cycle protection

for its gas heat operation. The IGC also contains burner control

logic for dependable heating operation. The LED is visible with-

out removing the unit control box access panel. The 581B units

maximize heating efficiency through the IGC’s control of evapo-

rator fan ON/OFF delays. The IGC helps make 581B units reli-

able for many years.

Patented Cycle-LOC™ Protection System provides protec-

tion against compressor cycling by monitoring compressor cur-

rent draw. When lack of compressor current exists, the Cycle-

LOC circuit board locks out the compressors. The Cycle-LOC

board may be manually reset by simply switching thermostat to

OFF, and then back to the Cooling or AUTO modes. No manipu-

lation of the unit disconnect switch is needed.

TABLE OF CONTENTS

Page

Features/Benefits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1-4

Model Number Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . 4

ARI Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Options and Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-8

Physical Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9-12

Base Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13,14

Accessory Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . 15,16

Selection Procedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-44

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45-48

Application Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49-53

Typical Piping and Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

Typical Wiring Schematic. . . . . . . . . . . . . . . . . . . . . . . . . .55-57

Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58,59

Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60-62

4

FEATURES/BENEFITS (cont)

INDOOR AIR QUALITY (IAQ)

The Quality of Building Air is Improved as the DuraPac Plus

series utilizes certain key features that assist in improving

indoor air quality. A sloped condensate pan eliminates possible

biological growth in the rooftop unit. A face-split evaporator coil

(090-150 sizes) design proves effective in removing additional

moisture from the supply air. Two-in. filters are standard in all

rooftop units and an optional filter status sensor is available.

SERVICEABILITY

Standardized Components for the complete DuraPac Plus

line of products are found in all safety devices, condenser-fan

motors, evaporator-fan motors, and control boards, while the

gas sections use common inducer motors, limit switches, and

rollout switches. This allows for greater inventory control, famil-

iarity of parts, and fewer stocked parts.

Easily Accessible Refrigerant Access Ports on all discharge,

suction, and liquid lines permit easy and accurate measure-

ments as well as simple accessibility.

Resettable 24-v Circuit Breaker On 581B090-150 Units

allows room for error without replacing transformers or fuses.

Single-Side Utility Connections provide easy access to per-

form any necessary service.

Color-Coded Wires permit easy tracing and diagnostics.

Belt-Driven Motors are accessible through a single access

door to facilitate servicing and adjusting after installation.

Compressors and Safety Switches are Easily Accessible for

troubleshooting and system analysis.

MODEL NUMBER NOMENCLATURE

581B –Single Package

High-Efficiency

Gas/Electric Unit

Voltage Designation

E–460-3-60

J–208/230-1-60

P–208/230-3-60

T–575-3-60

581B E V 090 180 N AA

Fuel and Control Type

V–Natural Gas/Direct

Spark Ignition

Factory-Installed Options*

Nominal Tons

036 –3090 –7-1/2

048 –4102 –8-1/2

060 –5120 –10

072 –6150 –12-1/2

N–Low NOx Units

Gas Heat Input (Btuh)

072 – 72,000 180 –180,000

115 –115,000 220 –224,000

125 –125,000 250 –250,000

150 –150,000

Low NOx* California Compliant 3 Phase

060N – 60,000 071 – 72,000

090N – 90,000 114 –115,000

120N –120,000 149 –150,000

*Refer to the Trade Prices for ordering codes of factory-installed options.

5

ARI* CAPACITIES

LEGEND

*Air-Conditioning & Refrigeration Institute.

†Applies only to units with capacity of 65,000 Btuh or less.

**The IPLV is not applicable to single-compressor units.

NOTES:

1. Rated in accordance with ARI Standard 210/240 (size 036-120 units) or 360

(size 150 units) and 270 (size 036-150 units).

2. Ratings are net values, reflecting the effects of circulating fan heat. Ratings are

based on:

Cooling Standard: 80 F db, 67 wb indoor entering-air temperature and 95 F

db outdoor entering-air temperature.

IPLV Standard: 80 F db, 67 F wb indoor entering-air temperature and 80 F

db outdoor entering-air temperature.

HEATING CAPACITIES AND EFFICIENCIES

LEGEND

AFUE — Annual Fuel Utilization Efficiency

*California rated three-phase models.

†Three-phase standard models have heating input values as shown. Single-phase standard models

have one-stage heating with heating input values as follows:

581BJV036-060072, 72,000 Btuh

581BJV036-060115, 115,000 Btuh

581BJV048-060150, 150,000 Btuh

**California SCAQMD compliant Low NOx models have combustion products that are controlled to

40 nanograms per joule or less.

UNIT

581B

NOMINAL

TONS

STANDARD

CFM

COOLING

(Btuh)

TOTAL

kW SEER†EER SOUND RATING

(dB) IPLV**

036 3 1200 36,000 3.21 13.00 11.20 76 —

048 4 1450 47,000 4.25 13.00 11.05 76 —

060 5 1750 60,000 5.55 13.00 11.00 80 —

072 6 2100 74,000 6.70 —11.00 80 —

090 71/23000 90,000 8.18 —11.00 82 11.6

102 81/23000 102,000 9.44 —10.80 82 10.9

120 10 3200 120,000 10.91 —11.00 84 9.7

150 121/24300 140,000 14.04 —9.50 86 9.8

dB —Decibels

EER —Energy Efficiency Ratio

IPLV —Integrated Part-Load Value

SEER —Seasonal Energy Efficiency Ratio

SIZE

581B

HEATING INPUT (Btuh)

Stage 2/Stage 1

OUTPUT CAPACITY

(Btuh)

TEMPERATURE

RISE

AFUE

(%)

STEADY-STAGE

EFFICIENCY (%)

036071* —/72,000 —/ 59,040 15-45 82 82

036072†72,000/ 50,000 59,040/ 41,000 15-45 82 82

036114* —/115,000 —/ 92,000 55-85 80 80

036115†115,000/ 82,000 92,000/ 65,600 55-85 80 82

036060N** —/60,000 —/ 50,000 20-50 81 81

036090N** —90,000 —/ 74,000 30-60 81 81

048071* —/72,000 —/ 59,040 15-45 82 82

048072†72,000/ 50,000 59,040/ 41,000 15-45 82 82

048114* —/115,000 —/ 92,000 35-65 81 81

048115†115,000/ 82,000 93,150/ 66,420 35-65 81 81

048149* —/150,000 —/120,000 50-80 80 80

048150†150,000/120,000 120,000/ 96,000 50-80 80 80

048060N** —/60,000 —/ 50,000 20-50 81 81

048090N** —/90,000 —/ 74,000 30-60 81 81

048120N** —/120,000 —/101,000 40-70 82 82

060071* —/72,000 —/ 59,040 15-45 82 82

060072†72,000/ 50,000 59,040/ 41,000 15-45 82 82

060114* —/115,000 —/ 93,150 35-65 81 81

060115†115,000/82,000 93,150/ 66,420 35-65 81 81

060149* —/150,000 —/120,000 50-80 80 80

060150†150,000/120,000 120,000/ 96,000 50-80 80 80

060060N** —/60,000 —/ 50,000 20-50 81 81

060090N** —/90,000 —/ 74,000 30-60 81 81

060120N** —/120,000 —/101,000 40-70 82 82

072072 72,000/ 50,000 59,040/ 41,000 15-45 82 82

072115 115,000/ 82,000 93,150/ 66,420 35-65 81 81

072150 150,000/120,000 120,000/ 96,000 50-80 80 80

090125 125,000/ 90,000 102,500/ 72,900 20-50 82 82

090180 180,000/120,000 147,600/ 98,400 35-65 82 82

090224 224,000/180,000 183,700/147,600 45-75 82 82

102125 125,000/ 90,000 102,500/ 72,900 20-50 82 82

102180 180,000/120,000 147,600/ 98,400 35-65 82 82

102224 224,000/180,000 183,700/147,600 45-75 82 82

120180 180,000/120,000 147,600/ 98,400 35-65 82 82

120224 224,000/180,000 183,700/147,600 45-75 82 82

120250 250,000/200,000 200,000/160,000 40-70 80 80

150224 224,000/180,000 183,700/147,600 45-75 82 82

150250 250,000/200,000 200,000/160,000 40-70 80 80

Sizes 036-120 Only Size 150 Only

6

OPTIONS AND ACCESSORIES

*Indicates a factory-installed option.

†Indicates a field-installed accessory.

ITEM OPTION* ACCESSORY†

Perfect Humidity™ Dehumidification Package X

Integrated Economizer — Durablade XX

Integrated Economizer — EconoMi$er (gear driven) XX

EconoMi$er with Power Exhaust (Vertical Only) X

Power Exhaust for EconoMi$er X

High-Static Motor (except 150) X

Hinged Access Panels X

25% Manual Outdoor-Air Damper XX

50% Manual Outdoor-Air Damper X

Convenience Outlet X

Unit Mounted Disconnect X

Two-Position Damper (25% Open) X

Two-Position Damper (100% Open) X

Roof Curb (14 in.) X

Roof Curb (24 in.) X

Thru-the-Bottom Service Connections X

Thermostat and Subbase X

Light Commercial Thermostat X

Light Commercial Thermidistat X

Time Guard® II Control Circuit (3-Phase Units Only) X

Motormaster® Low Ambient Control X

Motormaster II Low Ambient Control X

Motormaster IV Low Ambient Control X

Accusensor™ II Enthalpy Control X

Accusensor III Differential Enthalpy Sensor X

Liquid Propane Conversion Kit X

Flue Discharge Deflector X

Flue-Hood Protector Assembly X

Coil Guard Grille X

Condenser Coil Hail Guard X

Fan/Filter Status Switch X

Corrosion Resistant Coils X

BURNER SPUDS

(ORIFICES)

LOW AMBIENT CONTROLS

The 581B036-150 standard units are designed to operate in cooling at outdoor temperatures

down to 25 F. With accessory Motormaster control (condenser-fan speed modulation), or Motor-

master II control (condenser-fan cycling), units can operate at outdoor temperatures down to

–20 F. The head pressure controls, which mount in the condenser section, control the

condenser-fan motor to maintain correct condensing temperature.

TIME GUARD II CONTROL

Time Guard II Control automatically prevents compressor

from restarting for at least 5 minutes after a shutdown.

Field-installed accessory prevents short cycling of com-

pressor if thermostat is rapidly changed. Time Guard II

device mounts in the control compartment of unit. The

Time Guard II device is not required when a programma-

ble thermostat is applied.

MOTORMASTER I

MOTORMASTER II

LIQUID PROPANE CONVERSION KIT

Liquid propane conversion kit allows

the unit to utilize a liquid propane fuel

supply in areas where natural gas is

not available. (Kit shown is for

sizes 036-072.)

7

OPTIONS AND ACCESSORIES (cont)

CONTROLLER

BAROMETRIC

RELIEF DAMPERS

OUTDOOR AIR

TEMPERATURE

SENSOR

GEAR-DRIVEN

DAMPER

ACTUATOR

ECONOMI$ER

PLUG

UNIT MOUNTED DISCONNECT ECONOMI$ER

Factory-installed, internally-mounted, NEC (National Electrical

Code) and UL (Underwriters’ Laboratories) approved non-fused

switch provides unit power shutoff with disconnect lockout protection

capability. The switch is accessible from outside the unit.

Factory-installed EconoMi$er utilizes a microprocessor-based con-

trol, gear drive damper system, low pressure drop characteristics,

built-in spring return (for close upon power loss), and an integral

barometric damper.

NOTE: EconoMi$er is only available for vertical ductwork applica-

tions and can be field or factory installed.

CONVENIENCE OUTLET

Factory-installed, internally mounted and externally accessible 115-v

female receptacle. Includes 15-amp GFI (Ground Fault Interrupter)

receptacle with independent fuse protection. Voltage required to

operate convenience outlet is provided by a factory-installed

transformer.

DURABLADE ECONOMIZER

Exclusive Durablade economizer damper design saves energy while

providing economical and reliable cooling. A sliding plate on the face

of the economizer controls the amount of outdoor air entering the

system. When the sliding plate is closed, it provides a leakproof seal

which prevents ambient air from seeping in or conditioned air from

seeping out. It can be easily adjusted for 100% outdoor air or any

proportions of mixed air. Equipped with standard controls and 30%

barometric relief capabilities.

PERFECT HUMIDITY™ DEHUMIDIFICATION PACKAGE

The Perfect Humidity dehumidification package is a factory-installed option

that provides increased dehumidification by cooling the hot liquid refrigerant

leaving the condenser coil. The package consists of a subcooling coil

located on the leaving-air side of the evaporator coil. The location of this coil

in the indoor-air stream enhances the latent capacity of the 581B units by

as much as 40%. The Perfect Humidity package includes crankcase

heater(s) and low-pressure switch(es) and operation can be controlled by a

field-installed, wall-mounted humidistat or light commercial thermidistat.

8

OPTIONS AND ACCESSORIES (cont)

MINIMUM

POSITION

OPEN

3

1

T

P

P1

T1

4

2

5

S

S

O

D

C

TR

B

REV.B

198818A

%

H

U

M

I

D

I

T

Y

90

70

60

30

10

DCBA

60 65 70

75

55

50 85

80

DAMPER

DAMPER

CLOSED

OPEN

OUTDOOR TEMP.°F

REV

.

97-3672

CW–SETPOINTS–CCW

CONTACTS SHOWN IN HIGH ENTHALPY

RUSH AT 24VAC

3 mA MIN.A

T 11 VDC

CONTACT RATINGS: 1.5A RUN, 3.5A IN

OR UNPOWERED STATE

1

2

3

TR

TR1

24VAC

ENTHALPY CONTROL

+

HAIL GUARD ACCUSENSOR™ II ENTHALPY CONTROL

Hail guard accessory (field installed) protects condenser coils

against damage from hail and other flying debris.

COIL GUARD GRILLE

Coil guard grille protects coils against large objects and

vandalism.

ACCUSENSOR III DIFFERENTIAL ENTHALPY

Accusensor economizer controls help provide efficient, economical

economizer operation. The Accusensor I dry-bulb sensor measures out-

door temperature and is standard with the Durablade economizer.

The accessory Accusensor II solid-state enthalpy control senses both

dry and wet bulb of the outdoor air to provide an accurate enthalpy read-

ing. Accusensor II control is available as a field-installed accessory for

the Durablade economizer.

The accessory Accusensor III differential enthalpy sensor control com-

pares outdoor temperature and humidity to return-air temperature and

humidity and determines the most economical mixture of air. Accu-

sensor III is available for Durablade economizers.

BRYANT COMMERCIAL PROGRAMMABLE THERMOSTAT

Designed specifically for use with Bryant commercial systems, this Bryant

programmable thermostat features LED occupied/unoccupied displays and

setback mode which can override continuous fan operation.

BRYANT LIGHT COMMERCIAL THERMIDISTAT

The light commercial thermidistat combines temperature and dehumidifica-

tion control in one device and provides continuous fan operation in occupied

mode. Recommended for use with the Perfect Humidity™ package.

9

PHYSICAL DATA

LEGEND

*Single phase/three phase.

†Indicates automatic reset.

**581B 072 unit size 036-072 (72,000 Btu heat input) have 2 burners.

581B 115 unit size 036-072 (115,000 Btu heat input) have 3 burners.

581B 150 unit size 048-072 (150,000 Btu heat input) have 3 burners.

††An LP kit is available as an accessory.

llCalifornia compliant three-phase models.

***Three-phase standard models have heating inputs as shown. Single-

phase standard models have one-stage heating with heating input values

as follows:

581BJV036-060072, 72,000 Btuh

581BJV036-060115, 115,000 Btuh

581BJV048-060150, 150,000 Btuh

†††California SCAQMD compliant Low NOx models have combustion prod-

ucts that are controlled to 40 nanograms per joule or less.

UNIT SIZE 581B 036 048 060 072

NOMINAL CAPACITY 34 56

OPERATING WEIGHT (lb)

Unit 530 540 560 615

With Durablade Economizer 564 574 594 649

With EconoMi$er 577 587 607 662

With Perfect Humidity™ Dehumidification Package 548 558 578 633

Roof Curb 115 115 115 115

COMPRESSOR Scroll

Quantity 1111

Oil (oz) 42 53 50 60

REFRIGERANT TYPE R-22

Operating Charge (lb-oz)

Standard Unit 5- 8 8-6 10- 0 9-10

Unit With Perfect Humidity Dehumidification Package 8-13 11-2 12-13 13- 6

CONDENSER FAN Propeller

Quantity...Diameter (in.) 1...22 1...22 1...22 1...22

Nominal Cfm 3500 3500 4100 4100

Motor Hp...Rpm 1/4...825 1/4...825 1/4...1100 1/4...1100

Watts Input (Total) 180 180 320 320

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Standard Unit

Rows...Fins/in. 1...17 2...17 2...17 2...17

Total Face Area (sq ft) 14.6 16.5 16.5 16.5

Unit with Perfect Humidity Dehumidification Package

Rows...Fins/in. 1...17 1...17 1...17 1...17

Total Face Area (sq ft) 3.9 3.9 3.9 3.9

EVAPORATOR FAN Centrifugal Type, Belt Drive

Quantity...Size (in.) 1...10 x 10 1...10 x 10 1...10 x 10 1...10 x 10

Nominal Cfm 1200 1600 2000 2400

Maximum Continuous Bhp Std 1.20 1.20 1.30/2.40* 2.40

Hi-Static 2.40 2.40 2.90 2.90

Motor Frame Size Std 48 48 48/56* 56

Hi-Static 56 56 56 56

Fan Rpm Range Std 760-1090 840-1185 1020-1460/1120-1585* 1120-1585

Hi-Static 1075-1455 1075-1455 1300-1685 1300-1685

Motor Bearing Type Ball Ball Ball Ball

Maximum Fan Rpm 2100 2100 2100 2100

Motor Pulley Pitch Diameter

A/B (in.)

Std 1.9/2.9 1.9/2.0 2.4/3.4 2.4/3.4

Hi-Static 2.8/3.8 2.8/3.8 3.4/4.4 3.4/3.4

Nominal Motor Shaft Diameter (in.) Std 1/21/25/85/8

Hi-Static 5/85/85/85/8

Fan Pulley Pitch Diameter (in.) Std 4.5 4.0 4.0 4.0

Hi-Static 4.5 4.0 4.5 4.5

Belt — Type...Length (in.) Std 1...A...33 1...A...33 1....4...40 1...A...38

Hi-Static 1...A...39 1...A...39 1...A...40 1...A...40

Pulley Center Line Distance (in.) 10.0-12.4 10.0-12.4 14.7-15.5 14.7-15.5

Speed Change per Full Turn of

Movable Pulley Flange (rpm)

Std 65 70 75 95

Hi-Static 65 65 60 60

Movable Pulley Maximum Full

Turns from Closed Position

Std 5565

Hi-Static 6655

Factory Setting — Full Turns Open Std 3333

Hi-Static 31/231/231/231/2

Factory Speed Setting (rpm) Std 890 980 1240 1304

Hi-Static 1233 1233 1396 1396

Fan Shaft Diameter at Pulley (in.) 5/85/85/85/8

EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins, Fixed Orifice Metering Device

Rows...Fins/in. 2...15 2...15 4...15 4...15

Total Face Area (sq ft) 5.5 5.5 5.5 5.5

Bhp —Brake Horsepower

10

PHYSICAL DATA (cont)

LEGEND

*Single phase/three phase.

†Indicates automatic reset.

**581B 072 unit size 036-072 (72,000 Btu heat input) have 2 burners.

581B 115 unit size 036-072 (115,000 Btu heat input) have 3 burners.

581B 150 unit size 048-072 (150,000 Btu heat input) have 3 burners.

††An LP kit is available as an accessory.

llCalifornia compliant three-phase models.

***Three-phase standard models have heating inputs as shown. Single-

phase standard models have one-stage heating with heating input values

as follows:

581BJV036-060072, 72,000 Btuh

581BJV036-060115, 115,000 Btuh

581BJV048-060150, 150,000 Btuh

†††California SCAQMD compliant Low NOx models have combustion prod-

ucts that are controlled to 40 nanograms per joule or less.

UNIT SIZE 581B 036 048 060 072

FURNACE SECTION

Rollout Switch Cutout Temp (F)†195 195 195 195

Burner Orifice Diameter (in. ...drill size)**

Natural Gas — Std 071/072 .113...33 .113...33 .113...33 .113...33

114/115 .113...33 .113...33 .113...33 .113...33

149/150 —.129...30 .129...30 .129...30

060N .102...38 .102...38 .102...38 —

090N .102...38 .102...38 .102...38 —

120N —.116...32 .116...32 —

Liquid Propane — Alt†† 071/072 .089...43 .089...43 .089...43 .089...43

114/115 .089...43 .089...43 .089...43 .089...43

149/150 —.102...38 .102...38 .102...38

060N .082...45 .082...45 .082...45 —

090N .082...45 .082...45 .082...45 —

120N —.094...42 .094...42 —

Thermostat Heat Anticipator Setting (amps)

(208/230/460/575 V) .14 .14 .14 .14

Gas Input (Btuh)

First Stage/Second Stage 071II —/ 72,000 —/ 72,000 —/ 72,000 —

114II —/115,000 —/115,000 —/115,000 —

149II ——/150,000 —/150,000 —

072*** 50,000/ 72,000 50,000/ 72,000 50,000/ 72,000 50,000/ 72,000

115*** 82,000/115,000 82,000/115,000 82,000/115,000 82,000/115,000

150*** —120,000/150,000 120,000/150,000 120,000/150,000

060N††† —/ 60,000 —/ 60,000 —/ 60,000 —

090N††† —/ 90,000 —/ 90,000 —/ 90,000 —

120N††† ——/120,000 —/120,000 —

Efficiency (Thermal) (%) 071 82 82 82 —

114 80 81 81 —

149 —80 80 —

072 82 82 82 82

115 80 81 81 81

150 —80 80 80

060N 81 81 81 —

090N 81 81 81 —

120N —82 82 —

Temperature Rise Range 071 15-45 15-45 15-45 —

114 55-85 35-65 35-65 —

149 —50-80 50-80 —

072 15-45 15-45 15-45 15-45

115 55-85 35-65 35-65 35-65

150 —50-80 50-80 50-80

060N 20-50 20-50 20-50 —

090N 30-60 30-60 30-60 —

120N —40-70 40-70 —

Manifold Pressure (in. wg)

Natural Gas — Std 3.5 3.5 3.5 3.5

Liquid Propane — Alt†† 3.5 3.5 3.5 3.5

Maximum Static Pressure (in. wg) 1.0 1.0 1.0 1.0

Field Gas Connection Size (in.) 1/

2

1/

2

1/

2

1/

2

HIGH-PRESSURE SWITCH (psig)

Standard Compressor Internal Relief 450 ± 50

Cutout 428

Reset (Auto.) 320

LOSS-OF-CHARGE SWITCH/LOW-PRESSURE SWITCH

(Liquid Line) (psig)

Cutout 7 ± 3

Reset (Auto.) 22 ± 5

FREEZE PROTECTION THERMOSTAT

Opens (F) 30 ± 5

Closes (F) 45 ± 5

OUTDOOR-AIR INLET SCREENS Cleanable

Quantity...Size (in.) 1...20 x 24 x 1

RETURN-AIR FILTERS Throwaway

Quantity...Size (in.) 2...16 x 25 x 2

Bhp —Brake Horsepower

11

PHYSICAL DATA (cont)

LEGEND

*Weight of 14-in. roof curb.

†Rollout switch lockout is manually reset by interrupting power to unit or

resetting thermostat.

NOTE: High-static motor not available on size 150 units.

UNIT SIZE 581B 090 102 120 150

NOMINAL CAPACITY (tons) 71/281/210 121/2

OPERATING WEIGHT (lb)

Unit 870 880 1035 1050

With Durablade Economizer 914 924 1079 1094

With EconoMi$er 932 942 1097 1112

With Perfect Humidity™ Dehumidification Package 899 909 1068 1083

Roof Curb* 143 143 143 143

COMPRESSOR Scroll

Quantity 22 22

Oil (oz) (each compressor) 53 53 50 60

REFRIGERANT TYPE R-22

Operating Charge (lb-oz)

Standard Unit

Circuit 1 7-10 7-14 9-10 9-8

Circuit 2 8- 2 8- 5 10-10 9-5

Unit With Perfect Humidity Dehumidification

Package

Circuit 1 10-10 10-11 13- 0 12-6

Circuit 2 12- 8 10-10 13- 5 12-2

CONDENSER FAN Propeller

Quantity...Diameter (in.) 2...22 2...22 2...22 2...22

Nominal Cfm 6500 6500 7000 7000

Motor Hp...Rpm 1/4...1100 1/4...1100 1/4...1100 1/4...1100

Watts Input (Total) 650 650 650 650

CONDENSER COIL Enhanced Copper Tubes, Aluminum Lanced Fins

Standard Unit

Rows...Fins/in. 2...17 2...17 2...17 2...17

Total Face Area (sq ft) 20.5 20.5 25.0 25.0

Unit with Perfect Humidity Dehumidification

Package

Rows...Fins/in. 1...17 1...17 1...17 1...17

Total Face Area (sq ft) 6.3 6.3 8.4 8.4

EVAPORATOR FAN Centrifugal

Size (in.) 15 x 15 15 x 15 15 x 15 15 x 15

Type Drive Belt Belt Belt Belt

Nominal Cfm 3000 3400 4000 5000

Maximum Continuous Bhp Std 2.90 2.90 3.70 5.25

Hi-Static 4.20 4.20 5.25 —

Motor Frame 56 56 56 56

Fan Rpm Range Std 840-1085 840-1085 860-1080 900-1260

Hi-Static 860-1080 860-1080 830-1130 —

Motor Bearing Type Ball Ball Ball Ball

Maximum Fan Rpm 2100 2100 2100 2100

Motor Pulley Pitch Diameter

A/B (in.)

Std 3.4/4.4 3.4/4.4 4.0/5.0 2.8/3.8

Hi-Static 4.0/5.0 4.0/5.0 2.8/3.8 —

Nominal Motor Shaft Diameter (in.) 7/87/87/87/8

Fan Pulley Pitch Diameter (in.) Std 7.0 7.0 8.0 5.8

Hi-Static 8.0 8.0 5.8 —

Belt — Type...Length (in.) Std A...51 A...51 A...51 BX...46

Hi-Static A...55 A...55 BX...46 —

Pulley Center Line Distance (in.) 16.75-19.25 16.75-19.25 15.85-17.50 15.85-17.50

Speed Change per Full Turn of

Movable Pulley Flange (rpm)

Std 50 50 45 60

Hi-Static 60 60 60 —

Movable Pulley Maximum Full

Turns from Closed Position

Std 55 56

Hi-Static 55 6—

Factory Setting — Full Turns Open Std 55 55

Hi-Static 55 5—

Factory Speed Setting (rpm) Std 840 840 860 960

Hi-Static 860 860 890 —

Fan Shaft Diameter at Pulley (in.) 11 11

EVAPORATOR COIL Enhanced Copper Tubes, Aluminum Double-Wavy Fins

Rows...Fins/in. 3...15 3...15 4...15 4...15

Total Face Area (sq ft) 8.9 8.9 11.1 11.1

Bhp —Brake Horsepower

12

PHYSICAL DATA (cont)

LEGEND

*Weight of 14-in. roof curb.

†Rollout switch lockout is manually reset by interrupting power to unit or

resetting thermostat.

NOTE: High-static motor not available on size 150 units.

UNIT SIZE 581B HEAT 090 102 120 150

FURNACE SECTION

Rollout Switch Cutout Temp†195 195 195 195

Burner Orifice Diameter

(in. ...drill size)

Natural Gas Std Lo .120...31 .120...31 .120...31 .120...31

Med .120...31 .120...31 .120...31 .129...30

Hi .120...31 .120...31 .129...30 —

Liquid Propane Accy Lo .096...41 .096...41 .096...41 .096...41

Med .096...41 .096...41 .096...41 .102...38

Hi .096...41 .096...41 .102...38 —

Thermostat Heat Anticipator

Setting (amps)

208/230 v and 575 Stage 1 .14 .14 .14 .14

Stage 2 .20 .20 .20 .20

460 v Stage 1 .14 .14 .14 .14

Stage 2 .20 .20 .20 .20

Gas Input (Btuh)Stage1/Stage 2 Lo 125,000/—125,000/—120,000/180,000 180,000/224,000

Med 120,000/180,000 120,000/180,000 180,000/224,000 200,000/250,000

Hi 180,000/224,000 180,000/224,000 200,000/250,000 —/—

Efficiency (Steady State) (%) 82 82 82, 80 (in 250,000 Btuh

heat range)

82, 80 (in 250,000 Btuh

heat range)

Temperature Rise Range Lo 20-50 20-50 35-65 35-65

Med 35-65 35-65 35-65 40-70

Hi 45-75 45-75 40-70 —

Manifold Pressure (in. wg)

Natural Gas Std 3.5 3.5 3.5 3.5

Liquid Propane Accy 3.5 3.5 3.5 3.5

Gas Valve Quantity 11 1 1

Gas Valve Pressure Range

Psig 0.180-0.487 0.180-0.487 0.180-0.487 0.180-0.487

in. wg 5.0-13.5 5.0-13.5 5.0-13.5 5.0-13.5

Field Gas Connection

Size (in.) Lo 1/21/23/43/4

Med 3/43/43/43/4

Hi 3/43/43/4—

HIGH-PRESSURE SWITCH (psig)

Standard Compressor 450 ± 50 500 ± 50

Internal Relief (Differential)

Cutout 428 428

Reset (Auto.) 320 320

LOSS-OF-CHARGE (LOW-PRESSURE)

SWITCH (psig)

Cutout 7 ± 3

Reset (Auto.) 22 ± 7

FREEZE PROTECTION

THERMOSTAT (F)

Opens 30 ± 5

Closes 45 ± 5

OUTDOOR-AIR INLET SCREENS Cleanable

Quantity...Size (in.) 1...20 x 24 x 1

1...16 x 25 x 1

RETURN-AIR FILTERS Throwaway

Quantity...Size (in.) 4...16 x 20 x 2 4...16 x 20 x 2 4...20 x 20 x 2 4...20 x 20 x 2

Bhp —Brake Horsepower

13

BASE UNIT DIMENSIONS

UNIT

581B

STANDARD

UNIT

WEIGHT

DURABLADE

ECONOMIZER

WEIGHT

ECONOMI$ER

WEIGHT

CORNER

WEIGHT

(A)

CORNER

WEIGHT

(B)

CORNER

WEIGHT

(C)

CORNER

WEIGHT

(D)

Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg

036 530 240 34 15.4 47 21.3 127 57.6 122 55.3 138 62.6 143 64.9

048 540 245 34 15.4 47 21.3 129 58.5 124 56.2 141 64.0 146 66.2

060 560 254 34 15.4 47 21.3 134 60.8 129 58.5 146 66.2 151 68.5

072 615 279 34 15.4 47 21.3 147 66.7 142 64.4 160 72.6 166 75.3

CONNECTION SIZES

A13/8″

″″

″ Dia [35] Field Power Supply Hole

B2″

″″

″ Dia [51] Power Supply Knockout

C13/4″

″″

″ Dia [44] Charging Port Hole

D7/8″

″″

″ Dia [22] Field Control Wiring Hole

E3/4″

″″

″-14 NPT Condensate Drain

F1/2″

″″

″-14 NPT Gas Connection

G21/2″

″″

″ Dia [64] Power Supply Knockout

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Center of gravity.

3. Direction of airflow.

4. On vertical discharge units, ductwork to be attached to accessory roof curb only. For horizontal

discharge units, field-supplied flanges should be attached to horizontal discharge openings, and

all ductwork should be attached to the flanges.

5. Minimum clearance (local codes or jurisdiction may prevail):

a. Between unit, flue side and combustible surfaces, 48 inches.

b. Bottom of unit to combustible surfaces (when not using curb), 1 inch.

Bottom of base rail to combustible surfaces (when not using curb) 0 inches.

c. Condenser coil, for proper airflow, 36 in. one side, 12 in. the other. The side getting the

greater clearance is optional.

d. Overhead, 60 in. to assure proper condenser fan operation.

e. Between units, control box side, 42 in. per NEC (National Electrical Code).

f. Between unit and ungrounded surfaces, control box side, 36 in. per NEC.

g. Between unit and block or concrete walls and other grounded surfaces, control box side,

42 in. per NEC.

h. Horizontal supply and return end, 0 inches.

6. With the exception of the clearance for the condenser coil and combustion side as stated in

notes 5a, b and c, a removable fence or barricade requires no clearance.

7. Units may be installed on combustible floors made from wood or Class A, B, or C roof covering

material if set on base rail.

8. The vertical center of gravity is 1′-6″ [457] up from the bottom of the base rail.

BOTTOM POWER CHART, THESE HOLES REQUIRED FOR

USE WITH ACCESSORY PACKAGES — CRBTMPWR001A00,

3A00 (1/2″, 3/4″) OR CRBTMPWR002A00, 4A00 (1/2″, 11/4″)

*Select either 3/4″ or 11/4″ for power, depending on wire size.

THREADED

CONDUIT SIZE

WIRE

USE

REQURED

HOLE SIZES (MAX.)

1/2″

″″

″24 V 7/8″ [22.2]

3/4″

″″

″Power* 11/8″ [28.4]

11/4″

″″

″Power* 13/4″

[44.4]

(003) 1/2″

″″

″ FPT Gas 11/4″ [31.8]

(004) 3/4″

″″

″ FPT Gas 15/8″ [41.3]

581B036-072

14

BASE UNIT DIMENSIONS (cont)

UNIT

581B

STANDARD

UNIT WEIGHT

DURABLADE

ECONOMIZER WEIGHT

ECONOMI$ER

WEIGHT

CORNER

WEIGHT (A)

CORNER

WEIGHT (B)

CORNER

WEIGHT (C)

CORNER

WEIGHT (D) “H”“J”“K”“L”

Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg Lb Kg ft-in. mm ft-in. mm ft-in. mm ft-in. mm ft-in. mm

090 870 395 44 20 62 28.1 189 86 161 73 239 109 280 127 2-07/8632 3-55/16 1050 2-911/16 856 2- 27/16 672

102 880 399 44 20 62 28.1 191 87 163 74 242 110 284 129 1-27/8378 3-55/16 1050 2-911/16 856 2- 27/16 672

120 1035 469 44 20 62 28.1 225 102 192 87 285 129 333 151 1-27/8378 4-15/16 1253 3-03/8924 2-107/16 875

150 1050 476 44 20 62 28.1 228 103 195 88 289 131 338 153 1-27/8378 4-15/16 1253 3-03/8924 2-107/16 875

NOTES:

1. Dimensions in [ ] are in millimeters.

2. Center of gravity.

3. Direction of airflow.

4. On vertical discharge units, ductwork to be attached to

accessory roof curb only. For horizontal discharge units,

field-supplied flanges should be attached to horizontal dis-

charge openings, and all ductwork should be attached to the

flanges.

5. Minimum clearance (local codes or jurisdiction may prevail):

a. Between unit, flue side and combustible surfaces,

48 inches.

b. Bottom of unit to combustible surfaces (when not using

curb), 1 inch. Bottom of base rail to combustible surfaces

(when not using curb) 0 inches.

c. Condenser coil, for proper airflow, 36 in. one side, 12 in.

the other. The side getting the greater clearance is

optional.

d. Overhead, 60 in. to assure proper condenser fan

operation.

e. Between units, control box side, 42 in. per NEC (National

Electrical Code).

f. Between unit and ungrounded surfaces, control box side,

36 in. per NEC.

g. Between unit and block or concrete walls and other

grounded surfaces, control box side, 42 in. per NEC.

h. Horizontal supply and return end, 0 inches.

6. With the exception of the clearance for the condenser coil

and combustion side as stated in notes 5a, b and c, a remov-

able fence or barricade requires no clearance.

7. Units may be installed on combustible floors made from

wood or Class A, B, or C roof covering material if set on

base rail.

8. The vertical center of gravity is 1′-7″ [483] for 090 and 102,

1′-11″ [584] for 120 and 150 up from the bottom of the base

rail.

CONNECTION SIZES

A13/8″ Dia [35] Field Power Supply Hole

B21/2″ Dia [64] Power Supply Knockout

C13/4″ Dia [44] Charging-Port Hole

D7/8″ Dia [22] Field Control Wiring Hole

E3/4″-14 NPT Condensate Drain

F

1/2″-14 NPT Gas Conn. — 581B090 & 102 —125 Heat

3/4″-14 NPT Gas Conn. — 581B090 to 120 — 180 Heat

581B 090 to 150 — 224 Heat, 581B120 & 150 — 250 Heat

G2″ Dia [51] Power Supply Knockout

BOTTOM POWER CHART, THESE HOLES

REQUIRED FOR USE WITH ACCESSORY PACKAGES —

CRBTMPWR001A00, 2A00 (1/2″, 3/4″) OR

CRBTMPWR002A00, 4A00 (1/2″, 11/4″)

*Select either 3/4″ or 11/4″ for power, depending on wire

size.

THREADED

CONDUIT SIZE

WIRE

USE

REQUIRED

HOLE SIZES (MAX.)

1/2″24 V 7/8″ [22.2]

3/4″Power* 11/8″ [28.4]

11/4″Power* 13/4″ [44.4]

(003) 1/2″ FPT Gas 11/4″ [31.8]

(004) 3/4″ FPT Gas 15/8″ [41.3]

581B090-150

15

ACCESSORY DIMENSIONS — 581B036-072

UNIT

SIZE

581B

“A”ROOF CURB

ACCESSORY

036-072 1′-2″ [356] CRRFCURB001A00

2′-0″ [610] CRRFCURB002A00

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels.

3. Dimensions in [ ] are in millimeters.

4. Roof curb: galvanized steel.

5. Attach ductwork to curb (flanges of duct rest on curb).

6. Service clearance 4 ft on each side.

7. Direction of airflow.

8. Connector packages CRBTMPWR001A00 and 002A00 are for thru-the-curb connec-

tions. Packages CRBTMP003A00 and 004A00 are for thru-the-bottom connections.

UNIT SIZE

581B BC

D ALT

DRAIN

HOLE

“E”

GAS

“F”

POWER

“G”

CONTROL

CONNECTOR

PKG. ACCY.

036-072 1′-911/16″

[551]

1′-4″

[406]

13/4″

[44.5]

3/4″

[19] NPT

3/4″ [19] NPT 1/2″

[12.7] NPT

CRBTMPWR001A00

11/4″ [31.7] CRBTMPWR002A00

1/2″

[12.7] NPT 3/4″ [19] NPT 1/2″

[12.7] NPT

CRBTMPWR003A00

3/4″

[19] NPT 11/4″ [31.7] CRBTMPWR004A00

16

ACCESSORY DIMENSIONS — 581B090-150

CONNECTOR

PKG. ACCY. BC

D ALT

DRAIN

HOLE

“E”

GAS

“F”

POWER

“G”

CONTROL

CRBTMPWR001A00

2′-87/16″

[827]

1′-1015/16″

[583]

13/4″

[44.5]

3/4″

[19] NPT

3/4″ [19] NPT) 1/2″

[12.7]

CRBTMPWR002A00 11/4″ [31.7]

CRBTMPWR003A00 1/2″

[12.7] NPT 3/4″ [19] NPT 1/2″

[12.7]

CRBTMPWR004A00 3/4″

[19] NPT 11/4″ [31.7]

NOTES:

1. Roof curb accessory is shipped disassembled.

2. Insulated panels: 1-in. thick polyurethane foam,

13/4 lb density.

3. Dimensions in [ ] are in millimeters.

4. Roof curb: 16-gage steel.

5. Attach ductwork to curb (flanges of duct rest on

curb).

6. Service clearance 4 ft on each side.

7. Direction of airflow.

8. Connector packages CRBTMPWR001A00 and

002A00 are for thru-the-curb type. Packages

CRBTMPWR003A00 and 004A00 are for thru-

the-bottom type connections.

ROOF CURB

ACCESSORY “A”UNIT SIZE

581B

CRRFCURB003A00 1′-2″ [356] 090-150

CRRFCURB004A00 2′-0″ [610]

17

SELECTION PROCEDURE (With 581B048 Example)

I DETERMINE COOLING AND HEATING REQUIRE-

MENTS AT DESIGN CONDITIONS.

Given:

Required Cooling Capacity (TC) . . . . . . . . . . 44,600 Btuh

Sensible Heat Capacity (SHC). . . . . . . . . . . . 32,000 Btuh

Required Heating Capacity . . . . . . . . . . . . . . 85,000 Btuh

Condenser Entering-Air Temperature . . . . . . . . . . . . 95 F

Evaporator Entering-Air Temperature . . . . . . . . .82 F edb,

67 F ewb

Evaporator Air Quantity . . . . . . . . . . . . . . . . . . . .1600 cfm

External Static Pressure (ESP) . . . . . . . . . . . . 0.75 in. wg

Electrical Characteristics (V-Ph-Hz). . . . . . . . . . . 230-1-60

II SELECT UNIT BASED ON REQUIRED COOLING

CAPACITY.

Enter the Cooling Capacities table (page 18) at condenser

entering temperature of 95 F, evaporator-air entering at

1600 cfm and 80 F db and 67 F wb. The 581B--048115

unit will provide cooling capacity of 48,900 Btuh and a

sensible heat capacity of 34,700 Btuh. For evaporator-air

temperature other than 80 F edb, calculate sensible heat

capacity correction, as required, using the formula found in

Note 3 following the Cooling Capacities tables.

For this example:

Correction factor = 1.10 x (1 – .21) x (82 – 80) = 1.738

Multiply the correction factor of 1.738 by 1600 cfm (a total

of 2781). From the Gross Cooling Capacities tables find

that the sensible heat capacity at 80 F is 34.7 MBtuh

(equivalent to 34,700 Btuh). Add 34,700 and 2781 to get

the corrected sensible heat capacity of 37,481.

NOTE: Unit ratings are gross capacities and do not

include the effect of evaporator-fan motor heat. To calcu-

late net capacities, see Step V.

III SELECT HEATING CAPACITY OF UNIT TO PROVIDE

DESIGN CONDITION REQUIREMENTS.

In the Heating Capacities and Efficiencies table (page 5)

note that unit 581B--048115 will provide output capacity of

92,000 Btuh, which is adequate for the given application.

IV DETERMINE FAN SPEED AND POWER REQUIRE-

MENTS AT DESIGN CONDITIONS.

Before entering the Fan Performance tables, calculate the

total static pressure required based on unit components.

From the given and the Pressure Drop tables (page 40),

find:

External static pressure .75 in. wg

Durablade economizer .05 in. wg

Total static pressure = .80 in. wg

Enter the Fan Performance table for 581B--048115 vertical

discharge unit on page 27. At 1600 cfm, the standard

motor will deliver 1.1 in. wg static pressure and 1.17 Bhp.

This will adequately handle the job requirements.

Using evaporator-fan motor efficiency table and formula on

page 40, determine watts.

V DETERMINE NET COOLING CAPACITY.

Cooling capacities are gross and do not include indoor-fan

motor (IFM) heat. Determine net capacity using the follow-

ing formula:

Watts = 1.17 (746)

.75

Watts = 1164

Net capacity = gross capacity –IFM heat

= 48,900 Btuh –1164 Watts

(3.413 Btuh )

Watts

= 48,900 Btuh –3972 Btuh

Net capacity = 44,928 Btuh

Net sensible capacity = 37,481 Btuh –3972 Btuh

= 33,509 Btuh

18

PERFORMANCE DATA

COOLING CAPACITIES

Standard Ratings

LEGEND

NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where hewb = Enthalpy of air entering indoor coil.

3. The SHC is based on 80 F edb temperature of air entering evap-

orator coil.

Below 80 F db, subtract (corr factor x cfm) from SHC.

Above 80 F db, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (db – 80).

581B036 (3 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

900/0.14 1200/0.17 1500/0.20

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62

75

TC 41.9 38.7 35.7 43.5 40.8 37.7 44.8 41.8 39.0

SHC 20.4 25.2 29.7 21.8 28.2 33.8 23.3 30.7 37.0

kW 2.19 2.16 2.12 2.21 2.18 2.15 2.23 2.19 2.16

85

TC 40.7 37.5 34.5 42.1 39.3 36.4 43.5 40.4 37.6

SHC 19.9 24.7 29.2 21.5 27.7 33.2 23.2 30.3 36.4

kW 2.46 2.42 2.39 2.47 2.44 2.41 2.50 2.45 2.42

95

TC 39.3 36.1 33.1 40.8 37.8 34.9 42.0 38.9 36.1

SHC 19.5 24.1 28.4 21.1 27.2 32.5 22.8 29.9 35.6

kW 2.75 2.71 2.66 2.77 2.73 2.69 2.79 2.74 2.71

105

TC 37.7 34.6 31.7 39.3 36.2 33.4 40.1 37.2 34.7

SHC 18.8 23.5 27.8 20.7 26.6 31.8 22.1 29.3 34.7

kW 3.06 3.02 2.98 3.09 3.04 3.01 3.10 3.06 3.03

115

TC 36.0 33.0 29.7 37.4 34.5 31.5 38.1 35.5 33.2

SHC 18.3 22.9 26.7 19.9 26.1 30.9 21.3 28.7 33.2

kW 3.41 3.36 3.31 3.43 3.39 3.34 3.44 3.41 3.37

125

TC 34.2 31.3 27.8 35.6 32.7 29.4 36.3 33.6 31.9

SHC 17.6 22.2 25.8 19.4 25.4 29.4 20.8 28.0 31.8

kW 3.78 3.73 3.66 3.80 3.76 3.71 3.81 3.78 3.75

581B048 (4 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

1200/0.17 1450/0.19 1600/0.21 2000/0.24

Temp (F) Air Entering Evaporator — Ewb (F)

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 54.0 50.7 44.2 55.9 52.2 47.7 56.4 52.8 49.1 58.1 54.5 50.6

SHC 26.1 32.7 37.5 27.6 35.1 41.8 28.2 36.2 43.8 30.2 39.5 47.5

kW 2.81 2.80 2.76 2.83 2.81 2.78 2.83 2.80 2.79 2.84 2.82 2.79

85

TC 52.2 48.9 41.9 54.1 50.4 45.9 54.5 51.0 47.2 55.3 52.3 48.7

SHC 25.4 32.0 36.4 26.9 34.5 40.8 27.5 35.7 42.8 28.6 38.5 46.6

kW 3.20 3.19 3.15 3.22 3.20 3.17 3.22 3.20 3.18 3.22 3.20 3.18

95

TC 50.7 46.9 39.5 51.9 48.4 43.5 52.5 48.9 45.2 53.9 50.1 46.7

SHC 24.9 31.1 35.0 26.1 33.6 39.6 26.8 34.7 41.8 28.8 37.5 45.6

kW 3.64 3.61 3.57 3.65 3.62 3.60 3.65 3.62 3.60 3.67 3.63 3.61

105

TC 48.8 44.5 36.7 49.8 46.2 40.7 50.2 46.7 42.1 51.5 48.2 44.7

SHC 24.3 30.2 33.6 25.3 32.8 38.2 26.0 33.9 40.3 27.9 37.4 44.4

kW 4.12 4.09 4.03 4.12 4.09 4.06 4.12 4.09 4.07 4.14 4.11 4.08

115

TC 46.5 41.1 34.3 47.7 43.3 37.0 48.0 44.4 38.5 48.9 45.7 42.0

SHC 23.4 28.9 32.4 24.9 31.8 36.3 25.4 33.4 38.3 27.1 36.9 42.0

kW 4.64 4.59 4.53 4.65 4.62 4.55 4.64 4.63 4.56 4.65 4.63 4.60

125

TC 43.8 37.5 32.4 45.1 39.0 33.8 45.3 40.1 35.4 46.3 42.6 38.8

SHC 22.5 27.4 31.5 24.1 30.2 33.7 24.7 31.9 35.4 26.5 35.9 38.8

kW 5.19 5.13 5.05 5.20 5.15 5.09 5.19 5.17 5.11 5.20 5.19 5.15

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible heat capacity (Btuh)

1.10 x cfm

tlwb = wet-bulb temperature corresponding to enthalpy of air

leaving indoor coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

19

PERFORMANCE DATA (cont)

COOLING CAPACITIES (cont)

Standard Ratings

LEGEND

NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where hewb = Enthalpy of air entering indoor coil.

3. The SHC is based on 80 F edb temperature of air entering evap-

orator coil.

Below 80 F db, subtract (corr factor x cfm) from SHC.

Above 80 F db, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (db – 80).

581B060 (5 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

1500/0.08 1750/0.09 2000/0.11 2500/0.13

Temp (F) Air Entering Evaporator — Ewb (F)

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 70.8 65.4 58.5 72.5 67.3 61.1 73.0 68.4 62.8 74.8 70.3 64.8

SHC 34.1 42.7 49.9 35.7 45.5 54.2 36.8 48.0 57.8 39.6 53.0 63.4

kW 3.53 3.49 3.44 3.55 3.50 3.46 3.55 3.51 3.47 3.57 3.54 3.48

85

TC 68.9 63.2 55.3 70.5 65.1 57.9 72.2 66.4 60.2 73.2 68.1 62.9

SHC 33.5 41.8 48.4 35.0 44.8 52.8 37.0 47.6 56.8 39.3 52.5 62.4

kW 3.98 3.94 3.87 4.00 3.96 3.90 4.03 3.97 3.92 4.04 3.99 3.94

95

TC 66.8 60.6 52.4 68.3 62.5 54.3 69.3 63.8 56.6 71.2 65.6 60.6

SHC 32.8 40.7 47.0 34.5 43.8 51.1 36.0 46.7 55.0 39.1 51.8 60.5

kW 4.48 4.43 4.35 4.50 4.45 4.37 4.51 4.46 4.40 4.55 4.48 4.44

105

TC 64.3 57.7 49.9 65.9 59.8 51.7 66.9 61.1 54.1 68.4 62.8 58.4

SHC 32.0 39.6 45.8 33.7 42.8 49.7 35.3 45.7 53.5 38.4 51.0 58.4

kW 5.03 4.96 4.87 5.05 4.99 4.90 5.06 5.00 4.93 5.08 5.02 4.98

115

TC 61.5 54.8 47.3 62.8 56.7 49.1 64.0 58.2 51.6 65.4 59.9 56.1

SHC 31.0 38.4 44.5 32.5 41.6 48.2 34.4 44.6 51.6 37.4 50.0 56.1

kW 5.61 5.55 5.46 5.62 5.58 5.49 5.65 5.60 5.52 5.67 5.61 5.57

125

TC 58.7 51.6 44.5 59.9 53.4 46.2 60.8 54.9 49.0 62.2 56.8 53.5

SHC 30.0 37.2 43.1 31.7 40.4 46.2 33.3 43.4 48.9 36.4 48.9 53.4

kW 6.27 6.19 6.09 6.28 6.21 6.13 6.29 6.24 6.17 6.31 6.27 6.22

581B072 (6 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

1800/0.05 2100/0.06 2400/0.06 3000/0.08

Temp (F) Air Entering Evaporator — Ewb (F)

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 86.7 80.7 74.4 88.8 82.7 76.6 90.5 84.4 78.2 92.6 86.3 81.0

SHC 43.0 53.7 63.8 45.0 57.4 68.9 47.2 61.2 73.6 51.2 67.4 80.7

kW 4.58 4.46 4.33 4.63 4.50 4.38 4.67 4.55 4.41 4.72 4.58 4.47

85

TC 84.1 78.2 72.0 86.4 80.3 74.1 88.2 81.7 75.7 90.2 84.0 78.8

SHC 42.0 52.6 62.7 44.5 56.6 68.0 46.8 60.2 72.5 50.6 67.4 78.7

kW 5.10 4.97 4.85 5.16 5.03 4.90 5.21 5.06 4.93 5.26 5.12 4.99

95

TC 81.3 75.3 69.2 83.4 77.3 71.3 85.1 78.9 72.9 87.2 80.6 76.2

SHC 41.0 51.4 61.4 43.4 55.3 66.6 45.8 59.2 71.2 50.2 65.8 76.2

kW 5.65 5.52 5.39 5.71 5.57 5.44 5.77 5.62 5.48 5.83 5.66 5.55

105

TC 77.9 72.0 66.1 80.0 73.8 68.0 81.6 75.3 69.6 83.4 77.1 73.2

SHC 39.7 50.2 60.0 42.2 54.0 65.2 44.6 57.8 69.3 49.0 64.5 73.2

kW 6.22 6.08 5.94 6.29 6.13 6.00 6.34 6.17 6.04 6.40 6.22 6.12

115

TC 74.7 68.4 61.8 75.9 70.0 64.1 77.6 71.3 66.5 78.7 73.0 70.1

SHC 38.7 48.8 58.1 40.8 52.6 63.2 43.3 56.4 66.4 46.9 63.2 70.0

kW 6.84 6.68 6.49 6.87 6.71 6.56 6.93 6.75 6.63 6.96 6.80 6.72

125

TC 70.3 63.6 57.2 71.8 65.5 59.1 72.9 66.8 61.9 74.0 68.6 66.4

SHC 37.2 47.0 55.8 39.5 51.0 59.1 41.7 55.0 61.9 45.4 61.8 66.3

kW 7.43 7.25 7.03 7.48 7.30 7.13 7.51 7.35 7.22 7.54 7.41 7.33

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible heat capacity (Btuh)

1.10 x cfm

tlwb = wet-bulb temperature corresponding to enthalpy of air

leaving indoor coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

20

PERFORMANCE DATA (cont)

COOLING CAPACITIES (cont)

Standard Ratings

LEGEND

NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where hewb = Enthalpy of air entering indoor coil.

3. The SHC is based on 80 F edb temperature of air entering evap-

orator coil.

Below 80 F db, subtract (corr factor x cfm) from SHC.

Above 80 F db, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (db – 80).

581B090 (71/2 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

2250/0.10 3000/0.11 3750/0.14

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62

75 TC 105.5 96.9 87.6 107.3 99.6 90.7 110.3 101.9 93.8

SHC 50.6 63.6 75.7 53.3 69.2 83.7 58.0 76.6 92.2

kW 5.15 5.07 5.04 5.16 5.11 5.06 5.20 5.13 5.07

85

TC 102.5 93.6 83.6 105.1 96.5 87.5 107.7 99.0 90.6

SHC 49.7 62.4 73.9 52.8 68.4 82.2 57.3 75.9 90.0

kW 5.86 5.79 5.73 5.89 5.82 5.77 5.93 5.86 5.78

95

TC 98.9 90.1 79.3 101.6 92.9 83.5 103.8 95.3 87.4

SHC 48.5 61.2 71.9 51.9 67.2 80.2 56.2 74.9 87.3

kW 6.65 6.58 6.49 6.69 6.61 6.53 6.72 6.64 6.57

105

TC 95.3 86.2 75.7 97.6 88.8 79.6 100.0 91.0 84.1

SHC 47.3 59.6 70.2 50.7 65.9 78.0 55.3 73.6 84.1

kW 7.51 7.44 7.31 7.55 7.48 7.36 7.59 7.50 7.41

115

TC 91.0 82.0 71.6 93.2 84.5 75.4 95.6 86.6 80.7

SHC 45.9 58.0 68.1 49.3 64.2 75.3 54.2 72.1 80.7

kW 8.43 8.33 8.20 8.46 8.37 8.27 8.52 8.42 8.34

125

TC 86.2 77.8 68.1 88.3 80.0 71.9 90.0 81.9 77.2

SHC 44.1 56.4 66.3 47.5 62.6 71.8 52.1 70.1 77.2

kW 9.38 9.29 9.14 9.43 9.34 9.24 9.47 9.38 9.32

581B102 (81/2 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

2550/0.08 3000/0.09 3400/0.11 4250/0.13

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 119.5 105.7 94.8 123.1 109.1 98.7 124.8 110.7 100.2 126.3 112.8 103.4

SHC 56.5 65.7 77.8 60.2 71.7 86.3 62.2 75.8 92.8 67.8 83.3 101.2

kW 5.92 5.84 5.77 5.95 5.88 5.81 5.96 5.89 5.83 5.99 5.91 5.85

85

TC 115.5 101.9 90.6 119.7 105.4 94.8 121.4 106.9 96.1 124.0 109.1 98.7

SHC 55.1 64.3 76.1 58.9 70.5 85.1 61.3 74.5 90.5 66.2 82.9 98.5

kW 6.77 6.69 6.61 6.83 6.74 6.67 6.85 6.76 6.67 6.88 6.79 6.71

95

TC 111.3 97.7 86.6 115.0 101.2 90.6 117.2 102.6 91.7 120.1 104.8 94.5

SHC 53.7 62.8 74.2 57.4 68.9 82.9 60.0 73.0 88.6 65.0 81.5 94.5

kW 7.71 7.62 7.52 7.76 7.68 7.59 7.80 7.69 7.58 7.84 7.74 7.66

105

TC 107.2 93.5 82.5 110.5 96.7 85.9 112.1 97.9 87.6 114.9 99.9 90.5

SHC 52.2 61.3 72.7 56.0 67.4 81.2 58.4 71.4 86.6 63.5 79.5 90.5

kW 8.75 8.64 8.54 8.80 8.70 8.61 8.82 8.71 8.62 8.86 8.75 8.67

115

TC 101.9 89.2 78.0 104.7 91.8 81.5 106.7 93.1 83.3 109.2 94.9 86.3

SHC 50.2 59.5 70.7 53.7 65.7 79.5 56.6 69.5 83.1 61.5 77.8 86.3

kW 9.80 9.73 9.64 9.86 9.79 9.72 9.90 9.79 9.71 9.95 9.84 9.75

125

TC 97.3 84.3 73.1 100.0 86.8 76.0 101.3 87.9 78.7 102.9 89.5 81.9

SHC 48.7 57.7 68.5 52.4 63.9 76.0 54.8 67.9 78.7 59.1 75.7 81.9

kW 11.03 10.90 10.70 11.08 10.96 10.81 11.11 10.99 10.88 11.14 11.03 10.93

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible heat capacity (Btuh)

1.10 x cfm

tlwb = wet-bulb temperature corresponding to enthalpy of air

leaving indoor coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

21

PERFORMANCE DATA (cont)

COOLING CAPACITIES (cont)

Standard Ratings

LEGEND

NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where hewb = Enthalpy of air entering indoor coil.

3. The SHC is based on 80 F edb temperature of air entering evap-

orator coil.

Below 80 F db, subtract (corr factor x cfm) from SHC.

Above 80 F db, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (db – 80).

581B120 (10 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

3000/0.03 3200/0.03 4000/0.04 5000/0.04

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 140.3 129.4 115.0 141.2 130.4 118.1 145.2 134.0 122.1 147.5 136.6 125.3

SHC 65.6 82.2 97.4 66.7 84.4 101.5 71.3 93.1 113.5 77.9 103.7 124.7

kW 7.35 7.21 7.12 7.37 7.23 7.13 7.46 7.31 7.17 7.51 7.37 7.22

85

TC 137.7 125.3 110.0 138.9 126.6 113.6 142.6 130.6 117.7 144.6 133.3 122.3

SHC 65.0 81.2 95.2 66.3 83.6 99.7 71.0 92.8 112.0 76.9 103.1 122.2

kW 8.29 8.13 8.02 8.32 8.16 8.03 8.40 8.24 8.09 8.45 8.31 8.16

95

TC 133.8 120.7 103.0 135.1 121.9 107.2 138.8 125.8 112.8 141.7 128.5 118.5

SHC 63.9 79.6 92.2 65.2 82.0 97.0 70.6 91.5 109.7 76.9 102.5 118.4

kW 9.33 9.16 8.98 9.35 9.18 9.00 9.44 9.27 9.07 9.51 9.33 9.19

105

TC 128.7 115.4 96.5 129.8 116.6 99.7 133.7 120.3 107.1 136.7 122.8 114.5

SHC 62.3 77.6 89.4 63.6 80.2 93.5 69.4 89.6 106.8 76.0 100.6 114.3

kW 10.46 10.28 10.00 10.47 10.30 10.07 10.57 10.38 10.21 10.66 10.43 10.31

115

TC 123.2 109.1 90.8 124.3 110.3 92.2 127.9 114.4 100.8 130.9 116.8 110.1

SHC 60.4 75.1 86.6 61.9 77.8 90.0 67.6 87.6 100.7 74.6 98.7 109.9

kW 11.66 11.47 11.20 11.68 11.51 11.25 11.77 11.60 11.41 11.89 11.66 11.58

125

TC 117.5 101.8 86.2 118.5 103.0 87.4 121.6 107.1 96.0 124.1 110.3 104.8

SHC 58.5 72.5 84.5 60.0 75.0 87.3 65.8 85.1 96.0 72.5 96.9 104.8

kW 12.99 12.77 12.50 13.02 12.81 12.55 13.10 12.92 12.74 13.19 13.01 12.91

581B150 (121/2 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

3750/0.08 4300/0.09 5000/0.11 6250/0.13

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 164.3 154.8 132.8 168.5 157.7 143.6 171.7 160.6 148.3 174.7 164.6 153.5

SHC 91.0 107.5 111.6 95.7 114.1 121.0 101.6 121.5 129.7 49.4 110.6 142.3

kW 9.56 9.43 9.18 9.67 9.44 9.26 9.75 9.51 9.25 9.83 9.61 9.38

85

TC 159.5 149.4 125.8 163.8 152.7 136.6 166.8 155.6 143.6 170.2 159.5 149.4

SHC 78.3 102.0 116.4 82.8 108.2 128.8 86.7 116.1 140.0 93.3 130.0 149.3

kW 10.60 10.50 10.19 10.47 10.49 10.27 10.81 10.57 10.33 10.92 10.69 10.43

95

TC 154.0 143.2 118.0 157.7 146.7 128.8 161.1 149.6 137.5 164.4 153.6 144.3

SHC 76.6 99.5 112.5 80.5 106.1 124.8 85.1 114.4 136.3 75.5 112.1 135.8

kW 11.59 11.62 11.41 11.64 11.71 11.49 11.78 11.80 11.56 12.08 11.90 11.69

105

TC 148.0 134.1 110.7 151.5 139.5 120.6 153.9 142.4 128.3 157.0 145.8 138.7

SHC 74.4 95.9 108.6 78.9 104.0 119.9 83.2 111.6 128.3 89.3 125.2 138.7

kW 12.94 12.69 12.36 13.04 12.77 12.45 13.10 12.84 12.57 13.18 12.93 12.76

115

TC 139.1 120.4 103.2 143.0 125.0 110.6 146.1 128.8 118.2 148.9 135.7 129.5

SHC 71.3 90.5 103.2 76.0 98.1 110.5 80.5 107.0 118.2 87.2 122.1 129.5

kW 14.12 13.83 13.50 14.20 13.93 13.63 14.29 14.03 13.78 14.37 14.14 13.97

125

TC 127.1 106.2 97.5 131.6 108.7 100.7 136.1 112.0 105.7 139.5 118.4 116.4

SHC 67.2 85.1 97.4 72.4 91.9 100.3 77.6 100.4 105.6 84.6 114.2 116.3

kW 15.31 14.99 14.65 15.42 15.08 14.85 15.51 15.18 15.03 15.60 15.28 15.22

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible heat capacity (Btuh)

1.10 x cfm

tlwb = wet-bulb temperature corresponding to enthalpy of air

leaving indoor coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

22

PERFORMANCE DATA (cont)

COOLING CAPACITIES, UNITS WITH PERFECT HUMIDITY™ OPTION

LEGEND NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where: hewb = Enthalpy of air entering evaporator coil.

3. The SHC is based on 80 F edb temperature of air entering evapo-

rator coil.

Below 80 F edb, subtract (corr factor x cfm) from SHC.

Above 80 F edb, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (edb – 80).

581B036 (3 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

900/0.14 1200/0.17 1500/0.20

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62

75

TC 41.3 37.3 34.3 43.5 39.2 35.9 45.5 41.6 38.2

SHC 17.5 22.4 26.7 19.6 25.5 31.2 21.5 28.5 35.2

kW 2.19 2.14 2.10 2.21 2.16 2.14 2.24 2.19 2.16

85

TC 38.6 34.4 31.6 41.3 37.5 33.3 43.5 38.6 35.5

SHC 15.2 20.1 25.1 17.1 23.2 29.0 18.9 26.3 32.9

kW 2.46 2.40 2.37 2.47 2.43 2.40 2.51 2.45 2.42

95

TC 35.9 31.4 28.8 39.2 35.9 30.6 41.3 35.7 32.9

SHC 13.0 17.9 23.3 14.5 21.1 26.9 16.1 24.2 30.6

kW 2.74 2.68 2.63 2.76 2.74 2.67 2.80 2.75 2.71

105

TC 33.8 29.7 27.4 36.3 32.2 28.7 38.1 32.8 30.4

SHC 10.9 15.8 21.0 12.5 18.9 24.6 14.0 21.7 28.1

kW 3.05 3.00 2.97 3.09 3.04 2.99 3.12 3.07 3.03

115

TC 31.8 28.0 25.5 33.2 28.7 26.5 34.9 30.0 27.9

SHC 9.0 13.7 18.4 10.3 16.8 22.3 11.9 19.3 25.2

kW 3.40 3.36 3.31 3.45 3.38 3.32 3.48 3.41 3.37

125

TC 28.7 26.3 23.4 29.7 25.5 22.9 31.3 27.1 25.5

SHC 6.9 12.2 17.3 7.9 14.5 20.6 9.2 17.3 22.3

kW 3.78 3.73 3.66 3.84 3.77 3.71 3.87 3.79 3.75

581B048 (4 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

1200/0.17 1450/0.19 1600/0.21 2000/0.24

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 52.9 47.5 41.5 55.7 50.9 47.5 57.0 51.7 48.1 60.5 55.6 52.1

SHC 22.7 28.4 33.4 26.1 34.1 38.9 25.9 33.7 41.6 29.4 39.1 47.5

kW 2.87 2.86 2.82 2.89 2.87 2.84 2.89 2.86 2.85 2.90 2.88 2.85

85

TC 49.2 43.8 37.1 52.1 47.2 43.6 52.9 47.9 43.7 55.4 51.4 47.0

SHC 19.8 25.5 30.4 22.2 29.5 35.8 22.4 31.1 38.7 24.2 36.0 44.3

kW 3.26 3.25 3.21 3.28 3.26 3.23 3.28 3.26 3.24 3.28 3.26 3.24

95

TC 45.8 40.1 32.8 48.2 43.6 39.4 48.8 44.0 39.3 51.7 47.4 43.0

SHC 17.2 22.5 27.3 18.4 24.8 32.6 19.0 28.1 35.9 20.7 33.0 41.0

kW 3.71 3.68 3.64 3.72 3.69 3.67 3.72 3.69 3.67 3.74 3.70 3.68

105

TC 41.6 37.0 29.7 43.2 38.9 35.4 43.9 39.7 34.7 46.5 41.4 37.5

SHC 13.5 19.5 23.9 14.7 21.7 29.2 15.0 23.7 30.6 16.4 27.8 35.1

kW 4.20 4.17 4.11 4.20 4.17 4.14 4.20 4.17 4.15 4.22 4.19 4.16

115

TC 37.2 33.2 27.1 38.4 34.0 30.8 39.4 35.5 30.0 41.3 35.2 31.9

SHC 9.9 16.4 20.7 11.3 18.5 25.6 11.2 19.7 25.4 12.4 22.4 28.6

kW 4.73 4.68 4.62 4.74 4.71 4.64 4.73 4.72 4.65 4.74 4.72 4.69

125

TC 32.4 28.1 24.9 33.8 28.1 27.4 35.3 30.5 26.6 36.1 32.0 28.7

SHC 7.2 12.9 18.3 8.4 14.5 21.9 16.8 21.1 21.2 9.5 18.3 24.1

kW 5.29 5.23 5.15 5.30 5.25 5.19 5.29 5.27 5.21 5.30 5.29 5.25

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible capacity (Btuh)

1.10 x cfm

tlwb = Wet-bulb temperature corresponding to enthalpy of air

leaving evaporator coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

23

PERFORMANCE DATA (cont)

COOLING CAPACITIES, UNITS WITH PERFECT HUMIDITY™ OPTION (cont)

LEGEND NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where: hewb = Enthalpy of air entering evaporator coil.

3. The SHC is based on 80 F edb temperature of air entering evapo-

rator coil.

Below 80 F edb, subtract (corr factor x cfm) from SHC.

Above 80 F edb, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (edb – 80).

581B060 (5 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

1500/0.08 1750/0.09 2000/0.11 2500/0.13

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75 TC 69.9 62.7 56.2 74.7 67.3 61.0 78.5 71.2 64.8 81.7 75.5 69.3

SHC 29.0 36.9 43.9 31.7 40.5 51.2 34.5 44.2 55.4 37.8 52.0 62.8

kW 3.61 3.55 3.51 3.64 3.58 3.49 3.65 3.60 3.51 3.62 3.58 3.51

85 TC 65.9 59.1 51.7 70.6 63.2 56.3 75.5 66.8 60.7 78.1 70.8 65.1

SHC 25.3 34.0 41.9 27.5 37.6 48.0 30.7 41.6 52.0 33.8 47.4 58.0

kW 4.05 3.97 3.91 4.07 4.01 3.92 4.11 4.00 3.95 4.08 4.02 3.96

95 TC 61.9 55.2 47.7 66.5 58.8 51.3 70.4 61.9 55.7 74.2 65.9 60.6

SHC 21.6 31.1 40.0 23.5 34.5 44.6 26.0 38.6 47.9 30.0 42.8 52.6

kW 4.53 4.43 4.35 4.55 4.47 4.37 4.56 4.42 4.41 4.58 4.49 4.44

105 TC 57.7 51.1 44.9 61.8 54.5 47.7 65.1 57.2 50.8 68.4 60.3 56.1

SHC 18.1 27.8 35.7 20.0 31.2 40.1 22.1 34.3 43.5 26.1 38.9 48.5

kW 5.05 4.93 4.84 5.09 4.97 4.88 5.11 4.96 4.92 5.11 5.03 4.98

115 TC 53.4 47.2 42.0 56.6 50.0 44.2 59.6 52.5 46.2 62.6 54.9 51.6

SHC 14.7 24.6 31.5 16.5 27.8 35.7 18.2 30.0 39.0 22.1 34.9 44.3

kW 5.60 5.49 5.40 5.64 5.52 5.45 5.69 5.55 5.48 5.69 5.61 5.57

125 TC 48.7 42.0 36.9 51.3 45.0 39.0 54.1 46.8 40.9 56.9 49.2 45.9

SHC 10.9 19.6 28.0 12.5 22.2 31.5 13.5 24.0 34.0 16.5 28.0 38.8

kW 6.26 6.12 6.02 6.28 6.18 6.09 6.33 6.18 6.13 6.33 6.27 6.22

581B072 (6 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

1800/0.05 2100/0.06 2400/0.06 3000/0.08

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75 TC 82.6 75.6 68.5 84.9 78.0 70.9 85.9 79.5 73.5 89.1 82.7 77.0

SHC 36.0 44.8 55.4 37.5 49.1 59.7 38.8 51.1 64.0 41.8 58.1 70.2

kW 4.60 4.52 4.36 4.67 4.57 4.46 4.70 4.57 4.45 4.77 4.61 4.51

85 TC 78.2 71.6 64.5 80.9 73.4 65.8 82.0 74.4 67.9 85.8 78.2 72.3

SHC 31.4 41.2 51.7 33.0 44.7 55.8 34.7 47.4 60.1 37.6 54.3 66.7

kW 5.16 5.03 4.89 5.22 5.11 4.96 5.26 5.09 4.97 5.32 5.17 5.04

95 TC 73.8 67.4 60.2 76.3 68.3 60.5 77.5 69.3 62.3 82.0 72.8 67.5

SHC 27.0 37.6 47.9 28.2 40.0 51.6 30.2 43.7 56.2 33.6 49.2 62.9

kW 5.75 5.60 5.44 5.80 5.66 5.48 5.84 5.68 5.53 5.90 5.73 5.60

105 TC 68.4 62.6 55.9 71.4 64.3 56.2 72.1 64.6 58.3 75.7 67.0 62.4

SHC 22.3 33.5 43.5 23.4 36.5 48.0 25.4 38.4 50.2 29.1 45.2 56.2

kW 6.37 6.22 6.06 6.45 6.27 6.10 6.46 6.29 6.16 6.53 6.36 6.24

115 TC 63.4 57.8 50.7 66.0 60.1 51.5 66.4 59.6 54.5 68.8 60.8 57.5

SHC 18.1 29.5 38.9 18.8 32.9 44.1 20.7 33.3 43.8 24.3 41.4 49.7

kW 7.04 6.89 6.68 7.10 6.91 6.74 7.12 6.95 6.83 7.16 7.01 6.92

125 TC 55.5 49.6 45.8 58.4 52.4 46.1 57.6 52.1 49.5 59.2 52.8 53.1

SHC 15.3 24.0 35.2 15.7 27.5 39.0 17.5 27.5 38.4 20.9 34.6 44.4

kW 7.80 7.61 7.38 7.83 7.67 7.49 7.89 7.72 7.58 7.92 7.78 7.70

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible capacity (Btuh)

1.10 x cfm

tlwb = Wet-bulb temperature corresponding to enthalpy of air

leaving evaporator coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

24

PERFORMANCE DATA (cont)

COOLING CAPACITIES, UNITS WITH PERFECT HUMIDITY™ OPTION (cont)

LEGEND NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where: hewb = Enthalpy of air entering evaporator coil.

3. The SHC is based on 80 F edb temperature of air entering evapo-

rator coil.

Below 80 F edb, subtract (corr factor x cfm) from SHC.

Above 80 F edb, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (edb – 80).

581B090 (71/2 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

2250/0.10 3000/0.11 3750/0.14

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62

75 TC 98.4 91.1 81.1 103.7 97.9 91.8 105.8 101.3 94.1

SHC 44.5 55.4 67.0 50.4 65.4 80.5 54.5 72.4 89.5

kW 5.05 4.96 4.87 5.09 5.04 4.97 5.16 5.04 4.99

85 TC 94.2 85.8 76.9 100.3 92.4 85.2 103.5 96.8 89.0

SHC 39.7 51.3 62.7 46.2 58.3 75.7 50.6 68.2 84.3

kW 5.74 5.65 5.55 5.81 5.75 5.64 5.89 5.74 5.70

95 TC 89.9 80.5 72.6 96.9 86.8 78.6 101.1 92.2 83.8

SHC 34.8 47.2 58.3 41.9 51.2 71.0 46.6 63.9 79.1

kW 6.42 6.33 6.22 6.52 6.45 6.31 6.62 6.43 6.40

105 TC 84.6 75.3 68.0 91.6 81.3 73.4 94.5 86.3 78.4

SHC 30.0 42.5 53.9 36.9 49.3 66.4 41.4 59.2 73.8

kW 7.26 7.16 7.05 7.36 7.25 7.15 7.46 7.29 7.23

115 TC 79.2 70.1 63.3 86.2 75.8 68.1 87.9 80.3 72.9

SHC 25.2 37.8 49.4 31.9 47.4 61.9 36.1 54.4 68.5

kW 8.10 7.99 7.87 8.20 8.05 7.98 8.30 8.14 8.05

125 TC 72.8 64.5 57.2 78.0 69.8 62.3 81.6 73.2 69.2

SHC 20.1 33.4 44.1 25.4 42.5 56.5 31.1 48.9 64.7

kW 9.10 8.94 8.83 9.23 9.05 8.95 9.26 9.10 8.99

581B102 (81/2 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

2550/0.08 3000/0.09 3400/0.11 4250/0.13

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75 TC 112.4 102.2 92.6 115.2 106.4 96.4 119.6 110.3 101.3 127.6 117.6 108.0

SHC 49.1 62.4 75.0 52.9 68.5 82.3 56.2 73.3 89.5 62.8 83.3 101.7

kW 6.10 5.96 5.86 6.18 6.05 5.95 6.18 6.05 5.95 6.18 6.10 6.00

85 TC 105.7 95.7 86.5 110.0 100.6 91.0 114.0 103.7 94.6 118.2 110.9 101.2

SHC 43.6 57.1 69.9 47.8 62.8 76.9 50.7 67.9 82.8 74.7 77.7 94.8

kW 6.92 6.78 6.63 6.97 6.90 6.75 7.01 6.85 6.75 7.01 6.91 6.80

95 TC 98.9 89.1 80.4 104.7 94.8 85.5 108.4 97.0 87.9 108.8 104.1 94.3

SHC 38.0 51.7 64.8 42.7 57.0 71.4 45.2 62.4 76.2 86.5 72.0 87.9

kW 7.73 7.59 7.40 7.75 7.75 7.56 7.84 7.65 7.54 7.84 7.71 7.60

105 TC 91.8 82.3 73.8 97.3 87.6 78.6 100.4 89.8 80.8 102.3 95.3 85.8

SHC 32.6 46.3 59.5 37.0 51.9 66.8 39.3 56.7 70.0 68.6 65.5 80.9

kW 8.80 8.64 8.47 8.80 8.76 8.58 8.89 8.69 8.59 8.93 8.77 8.67

115 TC 84.7 75.5 67.3 89.8 80.5 71.7 92.5 82.5 73.8 95.8 86.6 77.4

SHC 27.2 40.9 54.2 31.4 46.9 62.2 33.4 51.0 63.8 50.6 59.1 73.9

kW 9.86 9.69 9.53 9.86 9.77 9.61 9.95 9.74 9.65 10.01 9.84 9.75

125 TC 77.6 68.7 60.7 82.4 73.3 64.8 84.5 75.3 66.7 89.3 77.8 68.9

SHC 21.8 35.5 48.9 25.7 41.8 57.6 27.5 45.3 57.6 32.7 52.6 66.9

kW 10.93 10.74 10.60 10.91 10.78 10.64 11.00 10.78 10.70 11.10 10.90 10.82

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible capacity (Btuh)

1.10 x cfm

tlwb = Wet-bulb temperature corresponding to enthalpy of air

leaving evaporator coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

25

PERFORMANCE DATA (cont)

COOLING CAPACITIES, UNITS WITH PERFECT HUMIDITY™ OPTION (cont)

LEGEND NOTES:

1. Direct interpolation is permissible. Do not extrapolate.

2. The following formulas may be used:

Where: hewb = Enthalpy of air entering evaporator coil.

3. The SHC is based on 80 F edb temperature of air entering evapo-

rator coil.

Below 80 F edb, subtract (corr factor x cfm) from SHC.

Above 80 F edb, add (corr factor x cfm) to SHC.

Correction Factor = 1.10 x (1 – BF) x (edb – 80).

581B120 (10 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

3000/0.03 3200/0.03 4000/0.04 5000/0.04

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75 TC 134.3 122.5 111.4 135.8 124.3 113.0 138.4 129.5 123.5 143.3 136.5 130.2

SHC 60.0 76.1 93.7 61.3 79.1 97.4 68.0 89.5 109.4 75.2 100.9 123.3

kW 7.03 6.84 6.72 7.01 6.89 6.77 7.10 6.92 6.77 7.15 7.03 6.88

85 TC 127.6 115.4 104.6 128.9 118.1 107.0 132.5 121.5 116.6 137.2 128.0 122.9

SHC 51.5 68.8 87.2 53.9 72.0 91.2 61.0 82.7 102.4 68.6 93.6 115.9

kW 7.96 7.86 7.59 7.94 7.78 7.51 8.02 7.84 7.69 8.02 7.94 7.79

95 TC 120.9 108.3 97.8 121.9 111.8 101.0 126.5 113.4 109.7 131.1 119.4 115.5

SHC 43.0 61.5 80.6 46.5 64.8 84.9 53.9 75.9 95.4 62.0 86.2 108.4

kW 8.88 8.87 8.46 8.86 8.66 8.26 8.94 8.76 8.60 8.89 8.85 8.69

105 TC 112.0 99.9 90.4 113.1 103.2 93.4 117.2 105.0 100.7 122.1 110.5 105.9

SHC 36.1 54.1 73.8 38.8 57.8 78.9 45.6 68.2 86.8 53.0 78.3 99.7

kW 10.0 10.0 9.6 10.0 9.8 9.5 10.1 9.9 9.8 10.1 10.0 9.9

115 TC 103.0 91.5 83.1 104.3 94.6 85.9 107.8 96.7 91.7 113.0 101.6 96.4

SHC 29.2 46.7 66.9 31.2 50.7 72.9 37.3 60.6 78.3 44.0 70.3 90.9

kW 11.2 11.1 10.8 11.2 11.0 10.7 11.3 11.1 11.0 11.3 11.2 11.1

125 TC 94.1 83.1 75.7 95.5 86.0 78.3 98.5 88.3 82.7 104.0 92.7 86.8

SHC 22.3 39.3 60.1 23.5 43.7 66.8 29.0 52.9 69.7 35.0 62.4 82.2

kW 12.35 12.15 11.94 12.38 12.13 11.92 12.48 12.27 12.25 12.53 12.30 12.28

581B150 (121/2 TONS)

Temp (F)

Air Ent

Condenser

(Edb)

Temp (F) Air Entering Evaporator — Cfm/BF

3750/0.08 4300/0.09 5000/0.11 6250/0.13

Temp (F) Air Entering Evaporator — Ewb

72 67 62 72 67 62 72 67 62 72 67 62

75

TC 156.3 144.2 132.3 160.0 148.4 136.2 162.8 150.6 138.2 169.0 157.5 145.6

SHC 66.6 87.6 112.1 72.5 94.8 121.3 76.9 99.6 127.5 87.0 115.5 142.7

kW 9.28 8.98 8.59 9.35 9.08 8.80 9.40 9.18 8.9 9.43 9.18 8.93

85

TC 147.6 136.2 123.7 150.7 140.1 127.2 154.1 140.8 127.9 161.1 148.0 135.4

SHC 58.7 80.0 103.8 63.5 86.5 112.2 68.7 91.0 118.1 77.7 107.8 133.2

kW 10.29 9.93 9.58 10.36 10.08 9.77 10.40 10.34 10.03 10.45 10.18 9.88

95

TC 138.9 128.2 115.1 141.4 131.8 118.3 145.3 131.0 117.6 153.1 138.4 125.1

SHC 50.8 72.3 95.5 54.4 78.1 103.2 60.5 82.3 108.7 68.5 100.0 123.7

kW 11.29 10.87 10.57 11.37 11.08 10.74 11.40 11.50 11.1 11.46 11.17 10.83

105

TC 129.1 117.8 105.8 131.7 121.0 108.7 134.8 119.9 107.7 140.9 126.9 115.9

SHC 42.1 63.5 86.5 45.4 69.0 93.9 51.2 74.2 101.3 57.7 90.2 113.6

kW 12.59 12.14 11.82 12.67 12.34 11.96 12.70 12.67 12.28 12.79 12.46 12.08

115

TC 119.2 107.3 96.4 122.1 110.2 99.0 124.2 108.8 97.8 128.7 115.3 106.7

SHC 33.5 54.8 77.5 36.4 59.8 84.7 41.9 66.1 93.8 46.8 80.5 103.5

kW 13.90 13.40 13.08 13.98 13.59 13.18 14.00 13.83 13.41 14.11 13.75 13.33

125

TC 109.4 96.9 87.1 112.4 99.4 89.3 113.7 97.7 87.8 116.5 103.8 97.5

SHC 24.8 46.0 68.5 27.4 50.7 75.5 32.6 58.0 86.4 36.0 70.7 93.5

kW 15.20 14.67 14.33 15.28 14.85 14.40 15.30 15.00 14.54 15.44 15.04 14.58

BF —Bypass Factor

Edb —Entering Dry Bulb

Ewb —Entering Wet Bulb

kW —Compressor Motor Power Input

SHC —Sensible Heat Capacity (1000 Btuh) Gross

TC —Total Capacity (1000 Btuh) Gross

tldb =t

edb –sensible capacity (Btuh)

1.10 x cfm

tlwb = Wet-bulb temperature corresponding to enthalpy of air

leaving evaporator coil (hlwb)

hlwb =h

ewb –total capacity (Btuh)

4.5 x cfm

26

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 2.)

2. Motor drive range is 760 to 1090 rpm for standard motor; 1075 to 1455 rpm

for high-static motor. All other rpms require a field-supplied drive.

3. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

4. Maximum continuous bhp is 1.20 for standard motor, 2.40 for high-static

motor. Extensive motor and electrical testing on these units ensures that the

full range of the motor can be utilized with confidence. Using your fan motors

up to the ratings shown will not result in nuisance tripping or premature

motor failure. Unit warranty will not be affected. See Evaporator-Fan Motor

Data tables on pages 41 and 42 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

6. Interpolation is permissible. Do not extrapolate.

581B036 (3 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.3 0.4 0.5 0.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 581 0.12 673 0.18 736 0.22 805 0.25 865 0.29 911 0.34

1000 644 0.19 709 0.22 782 0.28 835 0.30 900 0.35 937 0.38

1100 687 0.22 746 0.26 806 0.30 867 0.35 929 0.40 964 0.40

1200 733 0.26 785 0.32 843 0.35 903 0.41 960 0.47 994 0.50

1300 754 0.29 826 0.38 891 0.43 942 0.48 991 0.53 1047 0.60

1400 810 0.35 868 0.45 937 0.51 984 0.57 1032 0.62 1067 0.67

1500 841 0.42 911 0.53 985 0.61 1029 0.66 1073 0.72 1109 0.77

581B036 (3 TONS) — STANDARD MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.7 0.8 0.9 1.0 1.1 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 957 0.39 988 0.43 1039 0.47 1061 0.51 1083 0.54 1105 0.58

1000 992 0.44 1039 0.49 1061 0.55 1088 0.60 1111 0.66 1136 0.72

1100 1013 0.49 1068 0.55 1091 0.61 1109 0.66 1127 0.73 1145 0.80

1200 1045 0.56 1090 0.64 1109 0.68 1156 0.73 1203 0.81 1250 0.86

1300 1075 0.64 1122 0.70 1152 0.76 1190 0.82 1228 0.87 1266 0.94

1400 1110 0.73 1160 0.78 1181 0.83 1237 0.88 1293 0.94 1349 0.99

1500 1150 0.78 1190 0.84 1225 0.89 1271 0.95 1371 1.00 1383 1.05

581B036 (3 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 673 0.18 805 0.25 911 0.34 988 0.43 1061 0.47

1000 709 0.22 835 0.30 937 0.38 1039 0.49 1086 0.55

1100 746 0.28 867 0.35 964 0.40 1068 0.55 1109 0.61

1200 785 0.32 903 0.41 994 0.50 1090 0.64 1156 0.68

1300 826 0.38 942 0.48 1047 0.60 1122 0.70 1190 0.76

1400 868 0.45 984 0.57 1087 0.67 1160 0.84 1237 0.85

1500 911 0.53 1029 0.66 1109 0.77 1190 1.00 1271 0.95

581B036 (3 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 11050.5711400.6311700.6811980.7312240.77

1000 11360.6311720.6912030.7512320.8012580.86

1100 11450.6711810.7312130.8012420.8512680.91

1200 12100.7412480.8112820.8813120.9413401.01

1300 12660.8413060.9213411.0013731.0714021.14

1400 13490.9313911.0214291.111463 1.19 1494 1.26

1500 13631.0514061.151465 1.25 1500 1.34 1532 1.43

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

27

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1185 rpm for standard motor; 1075 to 1455 rpm

for high-static motor. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 1.2 for standard motor, 2.4 for high-static motor.

Extensive motor and electrical testing on these units ensures that the full

range of the motor can be utilized with confidence. Using your fan motors up

to the ratings shown will not result in nuisance tripping or premature motor

failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data

tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B048 (4 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 596 0.20 665 0.25 722 0.31 779 0.36 872 0.48 915 0.54 957 0.60

1300 633 0.24 699 0.30 754 0.36 809 0.42 902 0.55 943 0.61 984 0.67

1400 672 0.30 735 0.36 788 0.42 840 0.48 933 0.62 972 0.69 1011 0.75

1500 711 0.35 770 0.42 822 0.49 873 0.55 963 0.69 1002 0.77 1041 0.84

1600 751 0.42 835 0.49 871 0.56 907 0.63 993 0.77 1033 0.85 1072 0.93

1700 791 0.49 873 0.57 907 0.65 941 0.72 1024 0.87 1064 0.96 1103 1.04

1800 831 0.58 881 0.66 929 0.74 976 0.81 1057 0.97 1095 1.06 1132 1.14

1900 872 0.67 919 0.75 965 0.84 1011 0.92 1091 1.08 1127 1.17 1162 1.25

2000 913 0.77 958 0.86 1002 0.95 1046 1.03 1125 1.21 1160 1.30 1195 1.38

581B048 (4 TONS) — STANDARD MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.9 1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 993 0.65 1028 0.69 1056 0.72 1083 0.74 1134 0.80 1185 0.88 1231 0.99

1300 1021 0.74 1058 0.80 1090 0.85 1121 0.89 1171 0.94 1219 1.00 1268 1.10

1400 1049 0.82 1086 0.89 1120 0.96 1153 1.00 1210 1.12 1257 1.17 1307 1.25

1500 1077 0.92 1113 0.99 1147 1.06 1180 1.13 1241 1.27 1295 1.37 1339 1.43

1600 1107 1.00 1141 1.09 1174 1.17 1207 1.25 1269 1.40 1326 1.54 1376 1.65

1700 1137 1.12 1171 1.20 1203 1.29 1235 1.37 1296 1.53 1354 1.70 1407 1.84

1800 1167 1.23 1202 1.32 1233 1.41 1263 1.49 1323 1.67 1381 1.85 1436 2.02

1900 1197 1.35 1232 1.45 1263 1.54 1294 1.63 1351 1.81 1408 2.00 1463 2.19

2000 1229 1.48 1262 1.58 1294 1.68 1325 1.78 1362 1.97 1436 2.16 1489 2.36

581B048 (4 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 665 0.25 779 0.36 872 0.48 957 0.60 1028 0.69

1300 699 0.30 809 0.42 902 0.55 984 0.67 1058 0.80

1400 735 0.36 840 0.48 933 0.62 1011 0.75 1086 0.89

1500 770 0.42 873 0.55 963 0.69 1041 0.84 1113 0.99

1600 835 0.49 907 0.63 993 0.77 1072 0.93 1141 1.09

1700 873 0.57 941 0.72 1024 0.87 1103 1.04 1171 1.20

1800 881 0.66 976 0.81 1057 0.97 1132 1.14 1202 1.32

1900 919 0.75 1011 0.92 1091 1.08 1162 1.25 1232 1.45

2000 958 0.86 1046 1.03 1125 1.21 1195 1.38 1262 1.58

581B048 (4 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 10830.7411340.8011850.8813310.9913741.09

1300 11210.8911710.9412191.0012681.1013091.21

1400 11531.0012101.1212571.1713071.2513491.37

1500 11801.1312411.2712951.3713391.4313821.57

1600 12071.2512691.4013261.5413761.6514201.81

1700 12351.3712961.5313541.7014071.8414522.02

1800 12631.4913231.6713811.8514362.021482 2.22

1900 12941.6313511.8114082.001463 2.19 ——

2000 13251.7813621.9714362.161489 2.36 ——

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

28

PERFORMANCE DATA — (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1020 to 1460 rpm for single-phase standard motors,

1120 to 1585 for 3-phase standard motors, and 1300 to 1685 for high-static

motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 1.30 for single-phase standard motors, 2.40 for

3-phase standard motors, and 2.90 for high-static motors. Extensive motor

and electrical testing on these units ensures that the full range of the motor

can be utilized with confidence. Using your fan motors up to the ratings

shown will not result in nuisance tripping or premature motor failure. Unit

warranty will not be affected. See Evaporator-Fan Motor Data tables on

pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B060 (5 TONS) — STANDARD MOTOR — SINGLE-PHASE UNITS

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1500 771 0.37 828 0.44 935 0.58 1027 0.73 1107 0.88 1185 1.04 1257 1.20 1330 1.38 1411 1.59

1600 816 0.45 869 0.51 968 0.66 1056 0.81 1127 0.97 1215 1.14 1286 1.31 1353 1.49 1421 1.68

1700 902 0.61 940 0.60 1007 0.75 1094 0.91 1175 1.09 1245 1.26 1315 1.44 1381 1.52 1443 1.69

1800 942 0.70 978 0.66 1063 0.82 1147 0.97 1248 1.20 1322 1.33 1395 1.46 1475 1.56 1542 1.71

1900 982 0.80 1023 0.78 1097 0.91 1175 1.11 1266 1.29 1356 1.47 1430 1.58 1504 1.69 1556 1.82

2000 1022 0.91 1068 0.90 1132 1.01 1218 1.23 1303 1.41 1397 1.52 1459 1.67 1532 1.82 1588 1.97

2100 1063 0.99 1115 1.00 1180 1.17 1261 1.35 1340 1.53 1428 1.66 1489 1.80 1567 1.99 1626 2.16

2200 1104 1.13 1159 1.15 1214 1.28 1310 1.52 1375 1.63 1459 1.80 1528 1.95 1603 2.17 1666 2.37

2300 1130 1.26 1202 1.29 1248 1.38 1358 1.69 1410 1.72 1488 1.93 1561 2.13 1637 2.35 1710 2.54

2400 1174 1.37 1237 1.41 1292 1.55 1392 1.81 1460 1.90 1532 2.14 1584 2.28 1671 2.55 1756 2.70

2500 1201 1.48 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35 1633 2.53 1698 2.72 ——

581B060 (5 TONS) — STANDARD MOTOR — THREE-PHASE UNITS

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1500 771 0.37 828 0.44 935 0.58 1027 0.73 1107 0.88 1185 1.04 1257 1.20 1330 1.38 1411 1.59

1600 816 0.45 869 0.51 968 0.66 1056 0.81 1127 0.97 1215 1.14 1286 1.31 1353 1.49 1421 1.68

1700 902 0.61 940 0.60 1007 0.75 1094 0.91 1175 1.09 1245 1.26 1315 1.44 1381 1.52 1443 1.69

1800 942 0.70 978 0.66 1063 0.82 1147 0.97 1248 1.20 1322 1.33 1395 1.46 1475 1.56 1542 1.71

1900 982 0.80 1023 0.78 1097 0.91 1175 1.11 1266 1.29 1356 1.47 1430 1.58 1504 1.69 1556 1.82

2000 1022 0.91 1068 0.90 1132 1.01 1218 1.23 1303 1.41 1397 1.52 1459 1.67 1532 1.82 1588 1.97

2100 1063 0.99 1115 1.00 1180 1.17 1261 1.35 1340 1.53 1428 1.66 1489 1.80 1567 1.99 1626 2.16

2200 1104 1.13 1159 1.15 1214 1.28 1310 1.52 1375 1.63 1459 1.80 1528 1.95 1603 2.17 1666 2.37

2300 1130 1.26 1202 1.29 1248 1.38 1358 1.69 1410 1.72 1488 1.93 1561 2.13 1637 2.35 1710 2.54

2400 1174 1.37 1237 1.41 1292 1.55 1392 1.81 1460 1.90 1532 2.14 1584 2.28 1671 2.55 1756 2.70

2500 1201 1.48 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35 1633 2.53 1698 2.72 ——

581B060 (5 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1500 808 0.42 914 0.56 1001 0.69 1084 0.85 1168 1.01

1600 846 0.49 950 0.64 1034 0.78 1111 0.94 1194 1.11

1700 884 0.57 983 0.72 1068 0.88 1145 1.03 1218 1.21

1800 924 0.66 1018 0.82 1105 0.98 1179 1.13 1246 1.32

1900 965 0.76 1057 0.92 1143 1.10 1212 1.26 1280 1.43

2000 1008 0.87 1096 1.04 1177 1.22 1247 1.40 1300 1.57

2100 1051 0.99 1136 1.17 1210 1.35 1284 1.54 1347 1.72

2200 1095 1.12 1173 1.30 1245 1.49 1322 1.70 1380 1.89

2300 1140 1.26 1210 1.47 1284 1.65 1356 1.80 1418 2.07

2400 1185 1.41 1249 1.61 1323 1.80 1389 2.03 1456 2.26

2500 1231 1.57 1289 1.78 1363 2.00 1424 2.22 1500 2.45

581B060 (5 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1500 1199 1.19 1126 1.46 1250 1.69 1301 1.91 1349 2.12

1600 1263 1.28 1275 1.49 1299 1.78 1352 2.01 1401 2.23

1700 1295 1.39 1351 1.58 1352 1.80 1407 2.03 1459 2.26

1800 1319 1.52 1389 1.71 1435 1.91 1494 2.15 1548 2.40

1900 1343 1.64 1415 1.80 1478 2.05 1538 2.31 1594 2.57

2000 1374 1.77 1438 1.99 1505 2.21 1566 2.49 1624 2.77

2100 1409 1.91 1465 2.14 1533 2.45 1596 2.77 1654 3.08

2200 1442 2.08 1498 2.30 1568 2.64 1632 2.97 1691 3.31

2300 1475 2.26 1554 2.64 1627 3.03 1693 3.42 1755 3.81

2400 1565 2.47 1649 2.89 1726 3.31 ————

2500 1596 2.95 1682 3.45 1760 3.96 ————

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

29

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1120 to 1585 rpm for standard motors, 1300 to

1685 rpm for high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 2.40 for standard motors, 2.90 for high-static

motors. Extensive motor and electrical testing on these units ensures that

the full range of the motor can be utilized with confidence. Using your fan

motors up to the ratings shown will not result in nuisance tripping or prema-

ture motor failure. Unit warranty will not be affected. See Evaporator-Fan

Motor Data tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B072 (6 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1800 942 0.70 978 0.66 1063 0.82 1147 0.97 1248 1.20 1322 1.33 1395 1.46 1475 1.56 1542 1.71

1900 982 0.80 1023 0.78 1097 0.91 1175 1.11 1266 1.29 1356 1.47 1430 1.58 1504 1.69 1556 1.82

2000 1022 0.91 1068 0.90 1132 1.01 1218 1.23 1303 1.41 1397 1.52 1459 1.67 1532 1.82 1588 1.97

2100 1063 0.99 1115 1.00 1180 1.17 1261 1.35 1340 1.53 1428 1.66 1489 1.80 1567 1.99 1626 2.16

2200 1104 1.13 1159 1.15 1214 1.28 1310 1.52 1375 1.63 1459 1.80 1528 1.95 1603 2.17 1666 2.37

2300 1130 1.26 1202 1.29 1248 1.38 1358 1.69 1410 1.72 1488 1.93 1561 2.13 1637 2.35 1710 2.54

2400 1174 1.37 1237 1.41 1292 1.55 1392 1.81 1460 1.90 1532 2.14 1584 2.28 1671 2.55 1756 2.70

2500 1201 1.48 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35 1633 2.53 1698 2.72 ——

2600 1246 1.62 1320 1.68 1368 1.81 1458 2.06 1562 2.42 1620 2.59 1675 2.77 ————

2700 1285 1.75 1361 1.82 1400 1.91 1490 2.19 1602 2.64 1666 2.85 ——————

2800 1304 1.87 1402 1.95 1439 2.08 1543 2.43 1642 2.86 ————————

2900 1345 2.07 1446 2.16 1477 2.16 1585 2.65 ——————————

3000 1378 2.26 1489 2.36 1529 2.52 1598 2.73 ——————————

581B072 (6 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1800 978 0.66 1063 0.82 1147 0.97 1248 1.20 1322 1.33

1900 10230.7810970.9111751.1112661.291356 1.47

2000 10680.9011321.0112181.231303 1.41 1397 1.52

2100 11151.0011801.1712611.351340 1.53 1428 1.66

2200 11591.1512141.281310 1.52 1375 1.63 1459 1.80

2300 12021.2912481.381358 1.69 1410 1.72 1488 1.93

2400 12371.4112921.551392 1.81 1460 1.90 1532 2.14

2500 1272 1.53 1335 1.71 1427 1.94 1518 2.16 1575 2.35

2600 13201.6813681.8114582.0615622.4216202.59

2700 13611.8214001.9114902.1916022.6416662.85

2800 14021.9514392.0815432.4316422.861775 3.62

2900 14462.1614772.1615852.651753 3.58 ——

3000 14892.3615292.5215982.731767 3.69 ——

581B072 (6 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1800 13951.4614751.5615421.7116071.9416672.16

1900 14301.5815041.6915561.8216212.0616822.30

2000 14591.6715321.8215881.9716552.231717 2.49

2100 14891.8015671.9916262.161694 2.44 1758 2.73

2200 15281.9516032.1716662.371736 2.68 ——

2300 15612.1316372.351710 2.54 1782 2.87 ——

2400 15842.2816712.551756 2.70 ————

2500 1633 2.53 1698 2.72 1779 3.13 ————

2600 1675 2.77 1768 3.26 ——————

2700 1776 3.45 ————————

2800 ——————————

2900 ——————————

3000 ——————————

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

30

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1085 rpm for standard motors; 860 to 1080 rpm

for high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 2.90 for standard motors, 4.20 for high-static

motors. Extensive motor and electrical testing on these units ensures that the

full range of the motor can be utilized with confidence. Using your fan motors

up to the ratings shown will not result in nuisance tripping or premature motor

failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data

tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B090 (71/2 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2200 506 0.52 586 0.72 656 0.95 718 1.18 776 1.43 838 1.78 898 2.21 935 2.58

2250 514 0.55 593 0.76 662 0.99 724 1.22 781 1.78 841 1.81 902 2.25 939 2.60

2300 521 0.57 600 0.79 668 1.02 730 1.26 786 1.50 843 1.83 905 2.28 943 2.62

2400 536 0.63 613 0.85 680 1.09 741 1.34 796 1.59 849 1.88 910 2.31 952 2.74

2500 551 0.69 626 0.93 693 1.17 753 1.43 808 1.69 859 1.96 912 2.31 963 2.81

2550 559 0.72 634 0.97 700 1.21 759 1.48 814 1.74 864 2.01 915 2.34 968 2.81

2600 567 0.75 641 1.00 706 1.25 764 1.52 819 1.79 869 2.06 918 2.37 973 2.81

2700 582 0.83 655 1.08 719 1.34 776 1.61 831 1.89 880 2.17 927 2.47 976 2.84

2800 598 0.90 670 1.17 732 1.43 789 1.71 842 2.00 892 2.29 938 2.58 983 2.92

2900 614 0.98 684 1.25 745 1.53 802 1.81 854 2.11 903 2.42 949 2.71 993 3.03

3000 630 1.07 699 1.35 759 1.63 815 1.92 866 2.23 915 2.54 961 2.85 1003 3.17

3100 646 1.16 714 1.45 773 1.74 828 2.04 878 2.35 926 2.67 972 3.00 1015 3.32

3200 662 1.26 729 1.55 787 1.86 841 2.16 891 2.48 938 2.81 983 3.14 1026 3.47

3300 679 1.36 744 1.66 801 1.98 854 2.29 904 2.61 950 2.95 995 3.30 ——

3400 695 1.47 759 1.78 816 2.10 867 2.42 917 2.75 963 3.10 1007 3.45 ——

3500 712 1.59 774 1.90 830 2.23 881 2.56 930 2.90 976 3.25 ————

3600 729 1.71 790 2.03 845 2.37 895 2.71 943 3.05 988 3.41 ————

3700 745 1.84 805 2.17 860 2.52 909 2.87 956 3.22 ——————

3750 754 1.91 813 2.24 868 2.59 917 2.95 963 3.30 ——————

581B090 (71/2 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2200 506 0.52 586 0.72 656 0.95 718 1.18 776 1.43

2250 514 0.55 593 0.76 662 0.99 724 1.22 781 1.48

2300 521 0.57 600 0.79 668 1.02 730 1.26 786 1.50

2400 536 0.63 613 0.85 680 1.09 741 1.34 796 1.59

2500 551 0.69 626 0.93 693 1.17 753 1.43 808 1.69

2550 559 0.72 634 0.97 700 1.21 759 1.48 814 1.74

2600 567 0.75 641 1.00 706 1.25 764 1.52 819 1.79

2700 582 0.83 655 1.08 719 1.34 776 1.61 831 1.89

2800 598 0.90 670 1.17 732 1.43 789 1.71 842 2.00

2900 614 0.98 684 1.25 745 1.53 802 1.81 854 2.11

3000 630 1.07 699 1.35 759 1.63 815 1.92 866 2.23

3100 646 1.16 714 1.45 773 1.74 828 2.04 878 2.35

3200 662 1.26 729 1.55 787 1.86 841 2.16 891 2.48

3300 679 1.36 744 1.66 801 1.98 854 2.29 904 2.61

3400 695 1.47 759 1.78 816 2.10 867 2.42 917 2.75

3500 712 1.59 774 1.90 830 2.23 881 2.56 930 2.90

3600 729 1.71 790 2.03 845 2.37 895 2.71 943 3.05

3700 745 1.84 805 2.17 860 2.52 909 2.87 956 3.22

3750 754 1.91 813 2.24 868 2.59 917 2.95 963 3.30

581B090 (71/2 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2200 838 1.78 898 2.21 935 2.58 974 2.92 1011 3.26

2250 841 1.81 902 2.25 939 2.60 979 2.94 1015 3.29

2300 843 1.83 905 2.28 943 2.62 983 2.96 1020 3.31

2400 849 1.88 910 2.31 952 2.74 992 3.10 1029 3.46

2500 859 1.96 912 2.31 963 2.81 1004 3.18 1041 3.55

2550 864 2.01 915 2.34 968 2.81 1009 3.18 1047 3.55

2600 869 2.06 918 2.37 973 2.81 1014 3.18 1052 3.55

2700 880 2.17 927 2.47 976 2.84 1017 3.21 1055 3.59

2800 892 2.29 938 2.58 983 2.92 1024 3.30 1063 3.69

2900 903 2.42 949 2.71 993 3.03 1035 3.43 1074 3.83

3000 915 2.54 961 2.85 1003 3.17 1045 3.59 1084 4.01

3100 926 2.67 972 3.00 1015 3.32 1058 3.76 1097 4.20

3200 938 2.81 983 3.14 1026 3.47 1069 3.93 1109 4.39

3300 950 2.95 995 3.30 1043 3.80 1086 4.30 1127 4.80

3400 963 3.10 1007 3.45 1055 3.97 1100 4.49 1141 5.02

3500 976 3.25 1030 3.82 1079 4.40 1125 4.97 1167 5.56

3600 988 3.41 1043 4.01 1093 4.61 1139 5.22 1181 5.83

3700 1019 3.90 1075 4.58 1127 5.27 1174 5.97 1218 6.67

3750 1026 4.00 1083 4.70 1135 5.41 1183 6.12 1227 6.83

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

31

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1085 rpm for standard motors, 860 to 1080 rpm

for high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 2.90 for standard motors, 4.20 for high-static

motors. Extensive motor and electrical testing on these units ensures that

the full range of the motor can be utilized with confidence. Using your fan

motors up to the ratings shown will not result in nuisance tripping or prema-

ture motor failure. Unit warranty will not be affected. See Evaporator-Fan

Motor Data tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

581B102 (81/2 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2550 559 0.72 634 0.97 700 1.21 759 1.48 814 1.74 864 2.01 915 2.34 968 2.81

2600 567 0.75 641 1.00 706 1.25 764 1.52 819 1.79 869 2.06 918 2.37 973 2.81

2700 582 0.83 655 1.08 719 1.34 776 1.61 831 1.89 880 2.17 927 2.47 976 2.84

2800 598 0.90 670 1.17 732 1.43 789 1.71 842 2.00 892 2.29 938 2.58 983 2.92

2900 614 0.98 684 1.25 745 1.53 802 1.81 854 2.11 903 2.42 949 2.71 993 3.03

3000 630 1.07 690 1.35 759 1.63 815 1.92 866 2.23 915 2.54 961 2.85 1003 3.17

3100 646 1.16 714 1.45 773 1.74 828 2.04 878 2.35 926 2.67 972 3.00 1016 3.32

3200 662 1.26 729 1.55 787 1.86 841 2.16 891 2.48 938 2.81 983 3.14 1026 3.47

3300 679 1.36 744 1.66 801 1.98 854 2.29 904 2.61 950 2.95 995 3.30 ——

3400 695 1.47 759 1.78 816 2.10 867 2.42 917 2.75 963 3.10 1007 3.45 ——

3500 712 1.59 774 1.90 830 2.23 881 2.56 930 2.90 976 3.25 ————

3600 729 1.71 790 2.03 845 2.37 895 2.71 943 3.05 988 3.41 ————

3700 745 1.84 805 2.17 860 2.52 909 2.87 956 3.22 ——————

3750 754 1.91 813 2.24 868 2.59 917 2.95 963 3.30 ——————

3800 762 1.98 821 2.31 875 2.66 924 3.03 970 3.38 ——————

3900 779 2.12 836 2.46 890 2.82 938 3.19 ———— — — — —

4000 796 2.27 852 2.61 905 2.98 953 3.37 ———— — — — —

4100 813 2.42 868 2.78 920 3.15 —————— — — — —

4200 830 2.59 884 2.95 935 3.33 —————— — — — —

4250 839 2.68 890 3.04 ———————— — — — —

4300 847 2.76 900 3.13 ———————— — — — —

581B102 (81/2 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2550 559 0.72 634 0.97 700 1.21 759 1.48 814 1.74

2600 567 0.75 641 1.00 706 1.25 764 1.52 819 1.79

2700 582 0.83 655 1.08 719 1.34 776 1.61 831 1.89

2800 598 0.90 670 1.17 732 1.43 789 1.71 842 2.00

2900 614 0.98 684 1.25 745 1.53 802 1.81 854 2.11

3000 630 1.07 690 1.35 759 1.63 815 1.92 866 2.23

3100 646 1.16 714 1.45 773 1.74 828 2.04 878 2.35

3200 682 1.26 729 1.55 787 1.86 841 2.16 891 2.48

3300 679 1.36 744 1.66 801 1.98 854 2.29 904 2.61

3400 695 1.47 759 1.78 816 2.10 867 2.42 917 2.75

3500 712 1.59 774 1.90 830 2.23 881 2.56 930 2.90

3600 729 1.71 790 2.03 845 2.37 895 2.71 943 3.05

3700 745 1.84 805 2.17 860 2.52 909 2.87 956 3.22

3750 754 1.91 813 2.24 868 2.59 917 2.95 963 3.30

3800 762 1.98 821 2.31 875 2.66 924 3.03 970 3.38

3900 779 2.12 836 2.46 890 2.82 938 3.19 981 3.65

4000 796 2.27 852 2.61 905 2.98 953 3.37 996 3.85

4100 813 2.42 868 2.78 920 3.15 974 3.74 1019 4.28

4200 830 2.59 884 2.95 935 3.33 990 3.96 1036 4.52

4250 839 2.68 890 3.04 965 3.88 1022 4.61 1069 5.27

4300 847 2.76 900 3.13 976 3.99 1034 4.74 1081 5.42

581B102 (81/2 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2550 864 2.01 915 2.34 968 2.81 991 3.02 1012 3.21

2600 869 2.06 918 2.37 973 2.81 996 3.02 1017 3.21

2700 880 2.17 927 2.47 976 2.84 999 3.05 1021 3.25

2800 892 2.29 938 2.58 983 2.92 1006 3.13 1028 3.34

2900 903 2.42 949 2.71 993 3.03 1017 3.25 1038 3.46

3000 915 2.54 961 2.85 1003 3.17 1027 3.40 1049 3.62

3100 926 2.67 972 3.00 1016 3.32 1040 3.56 1062 3.80

3200 938 2.81 983 3.14 1026 3.47 1050 3.72 1073 3.97

3300 950 2.95 995 3.30 1022 3.58 1046 3.84 1069 4.09

3400 963 3.10 1007 3.45 1034 3.74 1059 4.01 1081 4.27

3500 976 3.25 1007 3.56 1034 3.86 1058 4.15 1081 4.42

3600 988 3.41 1019 3.74 1047 4.05 1071 4.35 1094 4.63

3700 992 3.59 1023 3.94 1050 4.27 1075 4.58 1098 4.88

3750 999 3.68 1030 4.04 1058 4.38 1083 4.70 1106 5.00

3800 1006 3.77 1038 4.14 1066 4.48 1091 4.81 1114 5.12

3900 1017 4.07 1049 4.46 1077 4.84 1103 5.19 1127 5.53

4000 1034 4.30 1066 4.71 1095 5.11 1121 5.48 1145 5.84

4100 1057 4.77 1090 5.24 1119 5.67 1146 6.09 1170 6.49

4200 1074 5.05 1108 5.54 1138 6.00 1165 6.44 1190 6.86

4250 1109 5.88 1143 6.45 1174 6.98 1202 7.50 1228 7.98

4300 1121 6.05 1156 6.64 1188 7.19 1216 7.72 1242 8.22

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

32

PERFORMANCE DATA (cont)

FAN PERFORMANCE — VERTICAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates high static motor and drive required.

3. Motor drive range is 860 to 1080 rpm for standard motors; 830 to 1130 rpm

for high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 3.70 for standard motors, 5.25 for high-static

motors. Extensive motor and electrical testing on these units ensures that

the full range of the motor can be utilized with confidence. Using your fan

motors up to the ratings shown will not result in nuisance tripping or prema-

ture motor failure. Unit warranty will not be affected. See Evaporator-Fan

Motor Data tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 2.)

2. Standard drive range is 900 to 1260 rpm.

3. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

4. Maximum continuous bhp is 5.25 for standard motor. Extensive motor and

electrical testing on these units ensures that the full range of the motor can

be utilized with confidence. Using your fan motors up to the ratings shown

will not result in nuisance tripping or premature motor failure. Unit warranty

will not be affected. See Evaporator-Fan Motor Data table on pages 41 and

42 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

6. Interpolation is permissible. Do not extrapolate.

581B120 (10 TONS) — STANDARD AND HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

3000 556 0.65 624 0.81 682 0.95 737 0.99 745 1.04 750 1.12 809 1.24 875 1.40 899 1.56 950 1.92

3100 569 0.70 636 0.87 693 1.01 748 1.08 755 1.12 757 1.20 862 1.38 903 1.53 943 1.88 971 2.21

3200 583 0.76 649 0.94 705 1.08 758 1.17 787 1.30 769 1.36 905 1.52 971 1.86 982 2.19 992 2.41

3300 597 0.83 662 1.00 717 1.16 770 1.29 815 1.37 780 1.43 965 1.82 991 2.10 1000 2.40 1025 2.59

3400 611 0.90 675 1.08 730 1.23 781 1.41 830 1.50 838 1.63 992 2.11 1015 2.43 1030 2.62 1050 2.72

3500 625 0.97 688 1.15 742 1.32 792 1.49 840 1.64 860 1.85 1011 2.45 1028 2.62 1072 2.74 1099 2.90

3600 639 1.04 701 1.23 755 1.41 803 1.57 850 1.87 890 2.21 1026 2.55 1063 2.75 1095 2.89 1119 3.08

3700 729 1.36 790 1.58 847 1.79 902 2.06 955 2.29 1008 2.55 1060 2.80 1108 3.05 1152 3.27 1190 3.46

3800 745 1.46 805 1.69 861 1.89 915 2.17 967 2.41 1019 2.67 1070 2.94 1118 3.19 1163 3.44 1203 3.65

3900 761 1.56 820 1.80 875 2.01 928 2.29 979 2.55 1029 2.80 1079 3.07 1128 3.34 1173 3.60 1214 3.83

4000 777 1.67 836 1.92 889 2.14 941 2.40 991 2.68 1040 2.94 1089 3.22 1137 3.49 1183 3.76 1225 4.00

4100 793 1.79 851 2.05 904 2.27 955 2.52 1004 2.82 1052 3.08 1100 3.36 1147 3.65 1193 3.93 1236 4.19

4200 810 1.91 867 2.18 918 2.41 968 2.65 1017 2.96 1064 3.23 1110 3.51 1157 3.81 1202 4.09 1245 4.38

4300 826 2.04 883 2.32 933 2.55 982 2.79 1030 3.11 1076 3.40 1121 3.67 1167 3.97 1212 4.27 1255 4.56

4400 842 2.17 898 2.46 948 2.70 996 2.93 1043 3.25 1088 3.56 1133 3.84 1178 4.14 1222 4.44 1265 4.74

4500 859 2.31 914 2.60 962 2.85 1010 3.09 1056 3.40 1101 3.73 1144 4.00 1188 4.31 1232 4.62 1274 4.93

4600 876 2.45 930 2.76 977 3.01 1024 3.26 1070 3.55 1114 3.90 1157 4.19 1199 4.49 1242 4.81 1284 5.13

4700 892 2.60 945 2.91 992 3.18 1039 3.43 1083 3.71 1126 4.07 1169 4.38 1210 4.68 1252 5.00 ——

4800 909 2.77 961 3.07 1008 3.36 1053 3.61 1097 3.88 1140 4.25 1181 4.58 1222 4.87 1263 5.20 ——

4900 926 2.93 977 3.24 1024 3.54 1068 3.80 1111 4.06 1153 4.41 1194 4.77 1234 5.09 ————

5000 942 3.11 993 3.41 1039 3.73 1080 3.99 1125 4.25 1166 4.59 1207 4.97 ——————

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

581B150 (121/2 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

3700 ——————902 2.06 955 2.29 1008 2.55 1060 2.80 1108 3.05 1152 3.27 1190 3.46

3800 ————861 1.89 915 2.17 967 2.41 1019 2.67 1070 2.94 1118 3.19 1163 3.44 1203 3.65

3900 ————875 2.01 928 2.29 979 2.55 1029 2.80 1079 3.07 1128 3.34 1173 3.60 1214 3.83

4000 ————889 2.14 941 2.40 991 2.68 1040 2.94 1089 3.22 1137 3.49 1183 3.76 1225 4.00

4100 ————904 2.27 955 2.52 1004 2.82 1052 3.08 1100 3.36 1147 3.65 1193 3.93 1236 4.19

4200 ——867 2.18 918 2.41 968 2.65 1017 2.96 1064 3.23 1110 3.51 1157 3.81 1202 4.09 1245 4.38

4300 ——883 2.32 933 2.55 982 2.79 1030 3.11 1076 3.40 1121 3.67 1167 3.97 1212 4.27 1255 4.56

4400 ——898 2.46 948 2.70 996 2.93 1043 3.25 1088 3.56 1133 3.84 1178 4.14 1222 4.44 1265 4.74

4500 ——914 2.60 962 2.85 1010 3.09 1056 3.40 1101 3.73 1144 4.00 1188 4.31 1232 4.62 1274 4.93

4600 876 2.45 930 2.76 977 3.01 1024 3.26 1070 3.55 1114 3.90 1157 4.19 1199 4.49 1242 4.81 1284 5.13

4700 892 2.60 945 2.91 992 3.18 1039 3.43 1083 3.71 1126 4.07 1169 4.38 1210 4.68 1252 5.00 ——

4800 909 2.77 961 3.07 1008 3.36 1053 3.61 1097 3.88 1140 4.25 1181 4.58 1222 4.87 1263 5.20 ——

4900 926 2.93 977 3.24 1024 3.54 1068 3.80 1111 4.06 1153 4.41 1194 4.77 1234 5.09 ————

5000 942 3.11 993 3.41 1039 3.73 1080 3.99 1125 4.25 1166 4.59 1207 4.97 ——————

5100 959 3.29 1009 3.60 1055 3.92 1097 4.19 1139 4.46 1180 4.78 1220 5.18 ——————

5200 976 3.47 1025 3.78 1071 4.12 1112 4.40 1153 4.67 1194 4.98 ————————

5300 993 3.67 1041 3.98 1086 4.33 1127 4.61 1168 4.90 1208 5.19 ————————

5400 1010 3.87 1057 4.18 1102 4.54 1142 4.84 1182 5.13 ——————————

5500 1027 4.07 1073 4.39 1118 4.76 1157 5.07 ————————————

5600 1043 4.29 1090 4.61 1133 4.99 ——————————————

5700 1060 4.51 1106 4.83 1149 5.22 ——————————————

5800 1077 4.74 1122 5.07 ————————————————

5900 1094 4.98 ——————————————————

6000 1111 5.22 ——————————————————

6100 ————————————————————

6200 ————————————————————

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

33

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. Motor drive range is 760 to 1090 rpm for standard motors; 1075 to 1455 rpm

for high-static motors. All other rpms require a field-supplied drive.

3. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

4. Maximum continuous bhp is 1.20 for standard motors; 2.40 for high-static

motors. Extensive motor and electrical testing on these units ensures that the

full range of the motor can be utilized with confidence. Using your fan motors

up to the ratings shown will not result in nuisance tripping or premature motor

failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data

tables on pages 41 and 42 for additional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant rep-

resentative to verify.

6. Interpolation is permissible. Do not extrapolate.

581B036 (3 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.3 0.4 0.5 0.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 526 0.06 584 0.08 656 0.12 734 0.22 818 0.25 875 0.27

1000 570 0.09 627 0.13 738 0.19 800 0.26 848 0.29 895 0.31

1100 614 0.13 670 0.16 758 0.23 812 0.29 863 0.32 914 0.35

1200 658 0.16 710 0.23 780 0.28 840 0.32 889 0.36 938 0.40

1300 703 0.20 752 0.27 808 0.32 868 0.37 916 0.41 963 0.45

1400 725 0.29 776 0.31 845 0.38 891 0.42 937 0.47 983 0.51

1500 755 0.33 816 0.38 870 0.43 924 0.48 969 0.53 1014 0.58

581B036 (3 TONS) — STANDARD MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.7 0.8 0.9 1.0 1.1 1.2

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 924 0.32 953 0.35 989 0.38 1028 0.42 1074 0.45 1120 0.50

1000 936 0.35 977 0.39 1020 0.44 1064 0.48 1124 0.52 1185 0.55

1100 960 0.39 1005 0.43 1052 0.49 1100 0.52 1163 0.56 1225 0.60

1200 988 0.45 1038 0.50 1076 0.53 1136 0.59 1201 0.61 1266 0.64

1300 1012 0.51 1061 0.56 1094 0.61 1172 0.65 1239 0.69 1306 0.72

1400 1027 0.56 1071 0.60 1108 0.67 1208 0.70 1278 0.75 1347 0.79

1500 1056 0.63 1097 0.68 1117 0.70 1245 0.74 1315 0.80 1385 0.85

581B036 (3 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 584 0.08 734 0.22 875 0.27 953 0.36 1028 0.42

1000 627 0.13 800 0.26 895 0.31 977 0.39 1064 0.48

1100 670 0.16 812 0.29 914 0.35 1005 0.43 1100 0.52

1200 710 0.23 840 0.32 938 0.40 1038 0.50 1136 0.59

1300 752 0.27 868 0.37 963 0.45 1061 0.56 1172 0.65

1400 776 0.31 891 0.42 983 0.51 1071 0.60 1208 0.70

1500 816 0.38 924 0.48 1014 0.58 1097 0.68 1245 0.74

581B036 (3 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

900 11200.5411550.5911860.6412150.6912400.73

1000 11850.6012220.6612550.7112850.7713120.82

1100 12250.6512630.7112980.7713280.8313570.88

1200 12660.7213060.7913410.8613730.9214020.98

1300 13060.7913470.8713830.9414161.0114461.07

1400 13470.8713890.9514271.031461 1.11 1492 1.18

1500 13850.9614281.051467 1.14 1502 1.22 1534 1.30

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

34

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1185 rpm for standard units; 1075 to 1455 rpm for

high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 1.20 for standard motors; 2.40 for high-static

motors. Extensive motor and electrical testing on these units ensures that the

full range of the motor can be utilized with confidence. Using your fan motors

up to the ratings shown will not result in nuisance tripping or premature motor

failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data

tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant rep-

resentative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B048 (4 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.3 0.4 0.6 0.7 0.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 569 0.18 641 0.23 701 0.29 761 0.34 859 0.46 901 0.52 943 0.58

1300 604 0.22 673 0.28 731 0.34 788 0.39 887 0.52 928 0.59 968 0.65

1400 640 0.27 705 0.33 761 0.39 817 0.45 914 0.59 955 0.66 996 0.72

1500 676 0.32 738 0.38 793 0.45 847 0.51 940 0.65 982 0.73 1024 0.81

1600 713 0.38 772 0.44 825 0.51 877 0.58 967 0.73 1009 0.81 1051 0.89

1700 750 0.45 806 0.51 857 0.59 908 0.66 997 0.81 1037 0.90 1077 1.01

1800 788 0.52 841 0.59 890 0.67 939 0.75 1026 0.91 1065 1.01 1104 1.07

1900 826 0.60 876 0.68 924 0.76 971 0.84 1056 1.01 1094 1.10 1132 1.18

2000 864 0.70 912 0.77 958 0.86 1004 0.94 1087 1.12 1125 1.21 1162 1.30

581B048 (4 TONS) — STANDARD MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.9 1.0 1.1 1.2 1.4 1.6 1.8

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 987 0.64 1030 0.70 1068 0.79 1106 0.87 1134 0.98 1189 1.12 1245 1.21

1300 1006 0.71 1044 0.77 1086 0.84 1128 0.91 1183 1.10 1226 1.23 1297 1.35

1400 1033 0.79 1069 0.86 1104 0.93 1139 1.01 1218 1.14 1286 1.34 1320 1.48

1500 1060 0.88 1095 0.95 1129 1.02 1162 1.09 1228 1.24 1303 1.40 1343 1.60

1600 1087 1.01 1123 1.05 1156 1.13 1185 1.20 1250 1.35 1319 1.51 1382 1.68

1700 1114 1.07 1151 1.15 1183 1.23 1215 1.31 1276 1.48 1334 1.64 1398 1.80

1800 1141 1.17 1178 1.26 1211 1.35 1243 1.43 1303 1.61 1359 1.78 1418 1.95

1900 1168 1.28 1204 1.37 1238 1.47 1271 1.56 1330 1.74 1386 1.93 1439 2.11

2000 1197 1.39 1231 1.48 1265 1.59 1298 1.69 1358 1.89 1413 2.08 1466 2.27

581B048 (4 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 641 0.23 761 0.34 859 0.46 943 0.58 1030 0.70

1300 673 0.28 788 0.39 887 0.52 968 0.65 1044 0.77

1400 705 0.33 817 0.45 914 0.59 996 0.72 1069 0.86

1500 738 0.38 847 0.51 940 0.65 1024 0.81 1095 0.95

1600 772 0.44 877 0.58 967 0.73 1051 0.89 1123 1.05

1700 806 0.51 908 0.66 997 0.81 1077 1.01 1151 1.15

1800 841 0.59 939 0.75 1026 0.91 1104 1.07 1178 1.26

1900 876 0.68 971 0.84 1056 1.01 1132 1.18 1204 1.37

2000 912 0.77 1004 0.94 1087 1.12 1162 1.30 1231 1.48

581B048 (4 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.21.41.61.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1200 1106 0.87 1134 0.98 1189 1.12 1245 1.21 1292 1.35

1300 1128 0.91 1183 1.10 1226 1.23 1297 1.35 1346 1.51

1400 1139 1.01 1218 1.14 1286 1.34 1320 1.48 1370 1.65

1500 1162 1.09 1228 1.24 1303 1.40 1343 1.60 1393 1.79

1600 1185 1.20 1250 1.35 1319 1.51 1382 1.68 1434 1.88

1700 1215 1.31 1276 1.48 1334 1.64 1398 1.80 1451 2.01

1800 12431.4313031.6113591.7814181.95 1471 2.18

1900 12711.5613301.7413861.9314392.11 1493 2.36

2000 12981.6913581.8914132.081466 2.27 1521 2.54

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

35

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1020 to 1460 rpm for single-phase standard units, 1120

to 1585 for 3-phase standard units, and 1300 to 1685 for high-static units. All

other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 1.30 for single-phase standard units, 2.40 for

3-phase standard motors, and 2.90 for high-static motors. Extensive motor

and electrical testing on these units ensures that the full range of the motor

can be utilized with confidence. Using your fan motors up to the ratings shown

will not result in nuisance tripping or premature motor failure. Unit warranty

will not be affected. See Evaporator-Fan Motor Data tables on pages 41 and

42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant rep-

resentative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B060 (5 TONS) — STANDARD MOTOR — SINGLE-PHASE UNITS

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Bhp Rpm Bhp Rpm Bhp Rpm

1500 741 0.38 798 0.43 895 0.54 990 0.67 1073 0.80 1154 0.95 1218 1.12 1295 1.36 1360 1.40

1600 783 0.45 838 0.51 933 0.63 1016 0.75 1102 0.90 1182 1.04 1251 1.20 1310 1.40 1385 1.49

1700 825 0.53 878 0.60 969 0.72 1049 0.84 1134 1.00 1206 1.14 1281 1.31 1342 1.48 1398 1.53

1800 885 0.63 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1341 1.40 1413 1.55 1474 1.58

1900 928 0.73 982 0.83 1084 1.02 1160 1.11 1223 1.24 1301 1.38 1374 1.53 1437 1.62 1490 1.67

2000 971 0.84 1022 0.94 1121 1.12 1188 1.22 1254 1.36 1329 1.44 1396 1.66 1460 1.68 1509 1.77

2100 1015 0.97 1063 1.10 1140 1.18 1196 1.27 1272 1.45 1354 1.58 1413 1.75 1475 1.73 1529 1.92

2200 1060 1.10 1104 1.20 1159 1.23 1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07

2300 1104 1.25 1130 1.27 1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24

2400 1138 1.30 1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 1604 2.42

2500 1183 1.43 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24 1585 2.42 1638 2.60

581B060 (5 TONS) — STANDARD MOTOR — 3-PHASE UNITS

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Bhp Rpm Bhp Rpm Bhp Rpm

1500 741 0.38 798 0.43 895 0.54 990 0.67 1073 0.80 1154 0.95 1218 1.12 1295 1.36 1360 1.40

1600 783 0.45 838 0.51 933 0.63 1016 0.75 1102 0.90 1182 1.04 1251 1.20 1310 1.40 1385 1.49

1700 825 0.53 878 0.60 969 0.72 1049 0.84 1134 1.00 1206 1.14 1281 1.31 1342 1.48 1398 1.53

1800 885 0.63 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1341 1.40 1413 1.55 1474 1.58

1900 928 0.73 982 0.83 1084 1.02 1160 1.11 1223 1.24 1301 1.38 1374 1.53 1437 1.62 1490 1.67

2000 971 0.84 1022 0.94 1121 1.12 1188 1.22 1254 1.36 1329 1.44 1396 1.66 1460 1.68 1509 1.77

2100 1015 0.97 1063 1.10 1140 1.18 1196 1.27 1272 1.45 1354 1.58 1413 1.75 1475 1.73 1529 1.92

2200 1060 1.10 1104 1.20 1159 1.23 1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07

2300 1104 1.25 1130 1.27 1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24

2400 1138 1.30 1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 1604 2.42

2500 1183 1.43 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24 1585 2.42 1638 2.60

581B060 (5 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1500 789 0.40 896 0.53 990 0.67 1072 0.83 1153 1.00

1600 826 0.46 931 0.61 1020 0.75 1101 0.91 1178 1.09

1700 865 0.54 966 0.69 1051 0.84 1133 1.01 1205 1.18

1800 905 0.62 1002 0.78 1084 0.93 1163 1.10 1235 1.29

1900 945 0.72 1037 0.88 1119 1.04 1194 1.21 1266 1.40

2000 984 0.82 1072 0.98 1154 1.16 1226 1.33 1297 1.53

2100 10240.9311081.1011921.2912591.471327 1.66

2200 10641.0511451.2212251.4312941.621359 1.80

2300 11041.1811831.3612601.571330 1.78 1392 1.97

2400 11451.3212221.4512961.731365 1.94 1426 2.15

2500 1186 1.48 1262 1.68 1331 1.89 1400 2.12 1461 2.34

581B060 (5 TONS) — HIGH-STATIC MOTOR (cont)

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1500 1221 1.17 1256 1.30 1283 1.32 1303 1.22 1345 1.34

1600 1252 1.27 1311 1.45 1340 1.58 1330 1.61 1373 1.77

1700 1278 1.37 1345 1.57 1397 1.76 1424 1.89 1470 2.08

1800 13031.4813711.6914331.9014802.0915282.30

1900 13301.5913961.8014602.0315172.2515662.47

2000 13621.7314221.9414852.1615442.4015942.64

2100 13931.8714522.0815102.3115702.5516202.80

2200 14232.0214832.2415382.4615942.711645 2.98

2300 14542.1815152.4115712.6416232.881676 3.17

2400 14852.3615442.5916042.841657 3.07 1710 3.38

2500 15182.5515742.781633 3.03 1692 3.28 1746 3.61

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

36

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 1120 to 1585 rpm for standard motors; 1300 to 1685 rpm

for high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 2.4 for standard motors; 2.9 for high-static

motors. Extensive motor and electrical testing on these units ensures that the

full range of the motor can be utilized with confidence. Using your fan motors

up to the ratings shown will not result in nuisance tripping or premature motor

failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data

tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant rep-

resentative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B072 (6 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.1 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1800 885 0.63 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1341 1.40 1413 1.55 1474 1.58

1900 928 0.73 982 0.83 1084 1.02 1160 1.11 1223 1.24 1301 1.38 1374 1.53 1437 1.62 1490 1.67

2000 971 0.84 1022 0.94 1121 1.12 1188 1.22 1254 1.36 1329 1.44 1396 1.66 1460 1.68 1509 1.77

2100 1015 0.97 1063 1.10 1140 1.18 1196 1.27 1272 1.45 1354 1.58 1413 1.75 1475 1.73 1529 1.92

2200 1060 1.10 1104 1.20 1159 1.23 1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07

2300 1104 1.25 1130 1.27 1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24

2400 1138 1.30 1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 1604 2.42

2500 1183 1.43 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24 1585 2.42 1638 2.60

2600 1210 1.58 1243 1.67 1312 1.76 1366 1.96 1435 2.10 1494 2.19 1552 2.40 1616 2.63 1671 2.80

2700 1254 1.76 1285 1.80 1354 1.95 1403 2.14 1474 2.21 1536 2.46 1584 2.61 1646 2.83 1706 2.97

2800 1274 1.82 1304 1.85 1374 2.12 1459 2.25 1514 2.42 1570 2.66 1624 2.85 1677 2.99 ——

2900 13181.9513452.0514122.321496 2.45 1529 2.61 1603 2.87 1671 3.03 ————

3000 13622.2013782.3014512.401534 2.66 1560 2.81 1611 3.01 ——————

581B072 (6 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

1800 942 0.73 1047 0.90 1139 1.05 1193 1.14 1276 1.30 1341 1.40 1413 1.55 1474 1.58 1522 1.74 1566 1.89

1900 982 0.83 1084 1.02 1160 1.11 1223 1.24 1301 1.38 1374 1.53 1437 1.62 1490 1.67 1538 1.84 1583 2.00

2000 1022 0.94 1121 1.12 1188 1.22 1264 1.36 1329 1.44 1396 1.66 1460 1.68 1509 1.77 1558 1.95 1603 2.12

2100 1063 1.10 1140 1.18 1196 1.27 1272 1.45 1354 1.58 1413 1.75 1475 1.73 1529 1.92 1578 2.11 1624 2.30

2200 1104 1.20 1159 1.23 1229 1.41 1306 1.53 1363 1.70 1434 1.81 1487 1.85 1554 2.07 1604 2.28 1651 2.48

2300 1130 1.27 1196 1.37 1264 1.56 1340 1.66 1397 1.86 1459 1.88 1520 2.07 1576 2.24 1627 2.46 1674 2.68

2400 1174 1.37 1245 1.57 1305 1.63 1373 1.84 1440 1.95 1502 2.06 1552 2.24 1604 2.42 1656 2.66 1704 2.90

2500 1201 1.50 1284 1.65 1338 1.75 1402 1.99 1469 2.04 1524 2.24 1585 2.42 1638 2.60 1691 2.86 1740 3.12

2600 1246 1.67 1312 1.76 1366 1.96 1435 2.10 1494 2.19 1552 2.40 1616 2.63 1671 2.80 1726 3.09 1775 3.35

2700 1285 1.80 1354 1.95 1403 2.14 1474 2.21 1536 2.46 1584 2.61 1646 2.83 1706 2.97 1761 3.27 ——

2800 1304 1.85 1374 2.12 1459 2.25 1514 2.42 1570 2.66 1624 2.85 1677 2.99 1739 3.33 1795 3.67 ——

2900 1345 2.05 1412 2.32 1496 2.54 1529 2.61 1603 2.87 1671 3.03 1742 3.43 ——————

3000 1378 2.30 1451 2.40 1534 2.66 1560 2.81 1611 3.01 1692 3.49 1764 3.95 ——————

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

37

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1085 rpm for standard motors. All other rpms

require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 2.9 for standard motors. Extensive motor and

electrical testing on these units ensures that the full range of the motor can be

utilized with confidence. Using your fan motors up to the ratings shown will not

result in nuisance tripping or premature motor failure. Unit warranty will not be

affected. See Evaporator-Fan Motor Data tables on pages 41 and 42 for addi-

tional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

7. Interpolation is permissible. Do not extrapolate.

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 860 to 1080 rpm for high-static motors. All other rpms

require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 4.2 for high-static motors. Extensive motor and

electrical testing on these units ensures that the full range of the motor can be

utilized with confidence. Using your fan motors up to the ratings shown will not

result in nuisance tripping or premature motor failure. Unit warranty will not be

affected. See Evaporator-Fan Motor Data tables on pages 41 and 42 for addi-

tional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B090 (71/2 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 0.9 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2200 499 0.50 580 0.70 652 0.94 717 1.17 748 1.30 779 1.43 839 1.78 905 2.21 951 2.57

2250 507 0.53 586 0.73 658 0.97 722 1.22 752 1.34 783 1.46 843 1.81 908 2.25 955 2.59

2300 513 0.55 592 0.76 663 1.00 727 1.26 756 1.38 786 1.49 846 1.84 910 2.25 959 2.61

2400 528 0.60 606 0.83 674 1.06 738 1.34 766 1.46 795 1.58 853 1.88 912 2.31 967 2.68

2500 542 0.66 619 0.90 686 1.13 748 1.41 777 1.55 806 1.68 859 1.94 919 2.37 971 2.73

2550 550 0.69 627 0.94 692 1.17 754 1.45 783 1.60 812 1.74 864 1.99 920 2.39 974 2.76

2600 557 0.72 634 0.97 698 1.21 759 1.49 787 1.64 816 1.79 868 2.04 921 2.41 976 2.78

2700 573 0.79 648 1.05 711 1.29 770 1.58 798 1.73 827 1.88 878 2.16 928 2.45 983 2.88

2800 588 0.86 662 1.13 723 1.38 782 1.66 809 1.82 837 1.98 889 2.29 937 2.57 986 2.91

2900 604 0.94 676 1.21 737 1.48 794 1.76 821 1.92 848 2.08 900 2.41 947 2.70 993 3.01

3000 620 1.02 690 1.30 750 1.58 806 1.86 832 2.02 849 2.18 910 2.52 958 2.85 1002 3.15

3100 636 1.11 704 1.39 764 1.69 818 1.97 844 2.13 870 2.29 920 2.64 968 2.99 1012 3.30

3200 652 1.21 718 1.49 778 1.80 831 2.09 856 2.25 882 2.40 931 2.76 979 3.13 1023 3.47

3300 668 1.31 732 1.59 793 1.92 844 2.21 869 2.37 894 2.53 942 2.89 989 3.26 1034 3.63

3400 684 1.41 747 1.70 807 2.04 857 2.35 882 2.51 907 2.66 954 3.02 1000 3.40 1044 3.79

3500 701 1.53 762 1.82 821 2.16 871 2.48 895 2.64 919 2.80 966 3.15 1011 3.55 1054 3.94

3600 717 1.65 777 1.94 835 2.29 885 2.63 908 2.79 932 2.95 978 3.30 1022 3.69 1065 4.10

3700 733 1.77 792 2.07 849 2.42 899 2.78 922 2.95 945 3.11 990 3.45 1034 3.84 1076 4.26

3750 742 1.84 800 2.14 856 2.49 907 2.86 929 3.03 952 3.20 997 3.54 1040 3.93 1082 5.27

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

581B090 (71/2 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2200 499 0.50 580 0.70 652 0.94 717 1.17 779 1.43 839 1.78 905 2.21 951 2.57 986 2.87 1019 3.16

2250 507 0.53 586 0.73 658 0.97 722 1.22 783 1.46 843 1.81 908 2.25 955 2.59 991 2.89 1023 3.19

2300 513 0.55 592 0.76 663 1.00 727 1.26 786 1.49 846 1.84 910 2.25 959 2.61 995 2.91 1028 3.21

2400 528 0.60 606 0.83 674 1.06 738 1.34 795 1.58 853 1.88 912 2.31 967 2.68 1003 2.99 1036 3.30

2500 542 0.66 619 0.90 686 1.13 748 1.41 806 1.68 859 1.94 919 2.37 971 2.73 1007 3.05 1041 3.36

2550 550 0.69 627 0.94 692 1.17 754 1.45 812 1.74 864 1.99 920 2.39 974 2.76 1010 3.08 1044 3.40

2600 557 0.72 634 0.97 698 1.21 759 1.49 816 1.79 868 2.04 921 2.41 976 2.78 1012 3.10 1046 3.42

2700 573 0.79 648 1.05 711 1.29 770 1.58 827 1.88 878 2.16 928 2.45 983 2.88 1020 3.21 1053 3.54

2800 588 0.86 662 1.13 723 1.38 782 1.66 837 1.98 889 2.29 937 2.57 986 2.91 1023 3.25 1057 3.58

2900 604 0.94 676 1.21 737 1.48 794 1.76 848 2.08 900 2.41 947 2.70 993 3.01 1030 3.36 1064 3.70

3000 620 1.02 690 1.30 750 1.58 806 1.86 849 2.18 910 2.52 958 2.85 1002 3.15 1039 3.51 1074 3.88

3100 636 1.11 704 1.39 764 1.69 818 1.97 870 2.29 920 2.64 968 2.99 1012 3.30 1050 3.69 1084 4.06

3200 652 1.21 718 1.49 778 1.80 831 2.09 882 2.40 931 2.76 979 3.13 1023 3.47 1061 3.87 1096 4.27

3300 668 1.31 732 1.59 793 1.92 844 2.21 894 2.53 942 2.89 989 3.26 1034 3.63 1072 4.05 1108 4.47

3400 684 1.41 747 1.70 807 2.04 857 2.35 907 2.66 954 3.02 1000 3.40 1044 3.79 1083 4.23 1119 4.66

3500 701 1.53 762 1.82 821 2.16 871 2.48 919 2.80 966 3.15 1011 3.55 1054 3.94 1093 4.40 1129 4.85

3600 717 1.65 777 1.94 835 2.29 885 2.63 932 2.95 978 3.30 1022 3.69 1065 4.10 1105 4.57 1141 5.05

3700 733 1.77 792 2.07 849 2.42 899 2.78 945 3.11 990 3.45 1034 3.84 1076 4.26 1116 4.75 1153 5.24

3750 742 1.84 800 2.14 856 2.49 907 2.86 952 3.20 997 3.54 1040 3.93 1082 4.27 1122 4.78 1159 5.25

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

38

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 840 to 1085 rpm for standard motors. All other rpms

require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 2.9 for standard motors. Extensive motor and

electrical testing on these units ensures that the full range of the motor can be

utilized with confidence. Using your fan motors up to the ratings shown will not

result in nuisance tripping or premature motor failure. Unit warranty will not be

affected. See Evaporator-Fan Motor Data tables on pages 41 and 42 for addi-

tional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates field-supplied motor and drive required.

3. Motor drive range is 860 to 1080 rpm for high-static motors. All other rpms

require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 4.2 for high-static motors. Extensive motor and

electrical testing on these units ensures that the full range of the motor can be

utilized with confidence. Using your fan motors up to the ratings shown will not

result in nuisance tripping or premature motor failure. Unit warranty will not be

affected. See Evaporator-Fan Motor Data tables on pages 41 and 42 for addi-

tional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

7. Interpolation is permissible. Do not extrapolate.

581B102 (81/2 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 0.9 1.0 1.2 1.4 1.6

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2550 550 0.69 627 0.94 692 1.17 754 1.45 783 1.60 812 1.74 864 1.99 920 2.39 974 2.76

2600 557 0.72 634 0.97 698 1.21 759 1.49 787 1.64 816 1.79 868 2.04 921 2.41 976 2.78

2700 573 0.79 648 1.05 711 1.29 770 1.58 798 1.73 827 1.88 878 2.16 928 2.45 983 2.88

2800 588 0.86 662 1.13 723 1.38 782 1.66 809 1.82 837 1.98 889 2.29 937 2.57 986 2.91

2900 604 0.94 676 1.21 737 1.48 794 1.76 821 1.92 848 2.08 900 2.41 947 2.70 993 3.01

3000 620 1.02 690 1.30 750 1.58 806 1.86 832 2.02 849 2.18 910 2.52 958 2.85 1002 3.15

3100 636 1.11 704 1.39 764 1.69 818 1.97 844 2.13 870 2.29 920 2.64 968 2.99 1012 3.30

3200 652 1.21 718 1.49 778 1.80 831 2.09 856 2.25 882 2.40 931 2.76 979 3.13 1023 3.47

3300 668 1.31 732 1.59 793 1.92 844 2.21 869 2.37 894 2.53 942 2.89 989 3.26 1034 3.63

3400 684 1.41 747 1.70 807 2.04 857 2.35 882 2.51 907 2.66 954 3.02 1000 3.40 1044 3.79

3500 701 1.53 762 1.82 821 2.16 871 2.48 895 2.64 919 2.80 966 3.15 1011 3.55 1054 3.94

3600 717 1.65 777 1.94 835 2.29 885 2.63 908 2.79 932 2.95 978 3.30 1022 3.69 1065 4.10

3700 733 1.77 792 2.07 849 2.42 899 2.78 922 2.95 945 3.11 990 3.45 1034 3.84 1076 4.26

3750 742 1.84 800 2.14 856 2.49 907 2.86 929 3.03 952 3.20 997 3.54 1040 3.93 1082 4.27

3800 750 1.90 807 2.21 863 2.56 914 2.93 936 3.11 958 3.28 1003 3.62 1045 4.01 1087 4.43

3900 767 2.04 822 2.35 877 2.71 928 3.09 950 3.27 972 3.45 1015 3.80 1057 4.18 1098 4.60

4000 783 2.18 838 2.50 891 2.86 942 3.26 964 3.45 986 3.63 1028 3.99 1070 4.36 1110 4.78

4100 800 2.34 854 2.66 905 3.02 956 3.43 978 3.62 1000 3.81 1042 4.18 1082 4.56 1122 4.97

4200 817 2.49 869 2.82 920 3.19 970 3.60 992 3.80 1015 4.00 1055 4.38 1095 4.76 1134 5.16

4250 826 2.58 877 2.91 928 3.28 977 3.69 999 3.90 1022 4.10 1062 4.49 1102 4.87 ——

4300 834 2.66 885 3.00 935 3.37 984 3.78 1006 3.99 1029 4.20 1069 4.59 1108 4.98 ——

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

581B102 (81/2 TONS) — HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

2550 550 0.69 627 0.94 692 1.17 754 1.45 812 1.74 864 1.99 920 2.39 974 2.76 1005 3.04 1034 3.31

2600 557 0.72 634 0.97 698 1.21 759 1.49 816 1.79 868 2.04 921 2.41 976 2.78 1008 3.06 1037 3.33

2700 573 0.79 648 1.05 711 1.29 770 1.58 827 1.88 878 2.16 928 2.45 983 2.88 1015 3.17 1044 3.45

2800 588 0.86 662 1.13 723 1.38 782 1.66 837 1.98 889 2.29 937 2.57 986 2.91 1018 3.20 1047 3.49

2900 604 0.94 676 1.21 737 1.48 794 1.76 848 2.08 900 2.41 947 2.70 993 3.01 1025 3.31 1055 3.61

3000 620 1.02 690 1.30 750 1.58 806 1.86 849 2.18 910 2.52 958 2.85 1002 3.15 1034 3.47 1064 3.77

3100 636 1.11 704 1.39 764 1.69 818 1.97 870 2.29 920 2.64 968 2.99 1012 3.30 1045 3.63 1075 3.95

3200 652 1.21 718 1.49 778 1.80 831 2.09 882 2.40 931 2.76 979 3.13 1023 3.47 1056 3.82 1087 4.16

3300 668 1.31 732 1.59 793 1.92 844 2.21 894 2.53 942 2.89 989 3.26 1034 3.63 1067 3.99 1098 4.35

3400 684 1.41 747 1.70 807 2.04 857 2.35 907 2.66 954 3.02 1000 3.40 1044 3.79 1078 4.17 1109 4.54

3500 701 1.53 762 1.82 821 2.16 871 2.48 919 2.80 966 3.15 1011 3.55 1054 3.94 1088 4.33 1119 4.72

3600 717 1.65 777 1.94 835 2.29 885 2.63 932 2.95 978 3.30 1022 3.69 1065 4.10 1099 4.51 1131 4.91

3700 733 1.77 792 2.07 849 2.42 899 2.78 945 3.11 990 3.45 1034 3.84 1076 4.26 1111 4.69 1143 5.10

3750 742 1.84 800 2.14 856 2.49 907 2.86 952 3.20 997 3.54 1040 3.93 1082 4.27 1117 4.70 1149 5.12

3800 750 1.90 807 2.21 863 2.56 914 2.93 958 3.28 1003 3.62 1045 4.01 1087 4.43 1122 4.87 1155 5.31

3900 767 2.04 822 2.35 877 2.71 928 3.09 972 3.45 1015 3.80 1057 4.18 1098 4.60 1133 5.06 1166 5.51

4000 783 2.18 838 2.50 891 2.86 942 3.26 986 3.63 1028 3.99 1070 4.36 1110 4.78 1146 5.26 1179 5.73

4100 800 2.34 854 2.66 905 3.02 956 3.43 1000 3.81 1042 4.18 1082 4.56 1122 4.97 1158 5.47 1192 5.95

4200 817 2.49 869 2.82 920 3.19 970 3.60 1015 4.00 1055 4.38 1095 4.76 1134 5.16 1171 5.68 1204 6.18

4250 826 2.58 877 2.91 928 3.28 977 3.69 1022 4.10 1062 4.49 1102 4.87 1140 5.27 1177 5.80 1211 6.31

4300 834 2.66 885 3.00 935 3.37 984 3.78 1029 4.20 1069 4.59 1108 4.98 1147 5.38 1184 5.92 1218 6.45

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

39

PERFORMANCE DATA (cont)

FAN PERFORMANCE — HORIZONTAL DISCHARGE UNITS (cont)

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 3.)

2. indicates high static motor and drive required.

3. Motor drive range is 860 to 1080 rpm for standard motors and 830 to 1130 for

high-static motors. All other rpms require a field-supplied drive.

4. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

5. Maximum continuous bhp is 3.70 for standard motors and 5.25 for high-static

motors. Extensive motor and electrical testing on these units ensures that the

full range of the motor can be utilized with confidence. Using your fan motors

up to the ratings shown will not result in nuisance tripping or premature motor

failure. Unit warranty will not be affected. See Evaporator-Fan Motor Data

tables on pages 41 and 42 for additional information.

6. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

LEGEND

NOTES:

1. Boldface indicates field-supplied drive required. (See Note 2.)

2. Standard drive range is 900 to 1260 rpm.

3. Values include losses for filters, unit casing, and wet coils. See page 40 for

accessory/FIOP static pressure information.

4. Maximum continuous bhp is 5.25 for the standard motor. Extensive motor and

electrical testing on these units ensures that the full range of the motor can be

utilized with confidence. Using your fan motors up to the ratings shown will not

result in nuisance tripping or premature motor failure. Unit warranty will not be

affected. See Evaporator-Fan Motor Data table on pages 41 and 42 for addi-

tional information.

5. Use of a field-supplied motor may affect wire sizing. Contact your Bryant

representative to verify.

6. Interpolation is permissible. Do not extrapolate.

581B120 (10 TONS) — STANDARD AND HIGH-STATIC MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

3000 478 0.57 658 0.92 721 1.08 796 1.23 851 1.50 898 1.78 942 2.01 983 2.17 1023 2.46 1063 2.61

3100 500 0.62 669 0.97 731 1.16 808 1.30 861 1.57 907 1.86 951 2.09 992 2.24 1031 2.51 1070 2.75

3200 519 0.69 680 1.03 741 1.23 818 1.38 873 1.65 916 1.95 960 2.18 1000 2.32 1039 2.58 1077 2.88

3300 537 0.77 692 1.10 751 1.30 828 1.47 884 1.72 925 2.03 969 2.27 1009 2.41 1048 2.66 1086 2.95

3400 561 0.86 704 1.17 761 1.37 837 1.57 896 1.82 934 2.12 978 2.36 1018 2.51 1057 2.75 1094 3.02

3500 592 0.98 715 1.24 773 1.45 847 1.66 907 1.92 945 2.22 987 2.46 1027 2.60 1066 2.85 1102 3.12

3600 632 1.12 727 1.32 784 1.54 857 1.76 917 2.03 957 2.32 996 2.55 1036 2.71 1075 2.96 1111 3.22

3700 677 1.20 748 1.43 810 1.65 869 1.89 928 2.17 984 2.43 1036 2.68 1080 2.90 1114 3.07 1135 3.17

3800 691 1.28 761 1.52 822 1.75 880 1.98 937 2.28 993 2.55 1046 2.81 1092 3.05 1129 3.25 1156 3.39

3900 705 1.37 773 1.62 834 1.86 891 2.08 947 2.39 1002 2.66 1055 2.94 1102 3.20 1143 3.42 1174 3.59

4000 720 1.47 786 1.71 847 1.97 902 2.19 957 2.50 1011 2.79 1064 3.07 1112 3.34 1155 3.59 1190 3.80

4100 734 1.56 800 1.82 860 2.09 914 2.31 967 2.60 1021 2.91 1072 3.20 1121 3.49 1165 3.76 1203 3.99

4200 749 1.66 813 1.92 873 2.21 926 2.44 978 2.71 1030 3.04 1081 3.34 1130 3.64 1175 3.92 1215 4.18

4300 764 1.77 826 2.04 886 2.33 938 2.57 989 2.83 1040 3.18 1090 3.48 1139 3.79 1185 4.08 1226 4.36

4400 779 1.88 840 2.16 899 2.46 951 2.71 1000 2.96 1050 3.31 1100 3.63 1148 3.94 1194 4.25 1236 4.54

4500 793 1.99 854 2.28 912 2.59 963 2.86 1012 3.09 1061 3.43 1109 3.78 1157 4.09 1203 4.42 1246 4.72

4600 808 2.11 868 2.42 925 2.73 975 3.00 1024 3.25 1071 3.56 1119 3.93 1166 4.26 1212 4.58 1255 4.91

4700 822 2.24 882 2.56 937 2.86 988 3.16 1036 3.42 1082 3.70 1129 4.09 1175 4.43 1221 4.76 1264 5.09

4800 837 2.37 896 2.71 950 3.00 1001 3.32 1048 3.59 1093 3.86 1139 4.24 1185 4.60 1230 4.93 ——

4900 852 2.51 910 2.86 963 3.15 1014 3.48 1060 3.76 1105 4.02 1150 4.38 1194 4.77 1239 5.12 ——

5000 867 2.65 924 3.01 977 3.30 1027 3.65 1073 3.94 1117 4.20 1161 4.54 1204 4.95 ————

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

581B150 (121/2 TONS) — STANDARD MOTOR

AIRFLOW

(Cfm)

EXTERNAL STATIC PRESSURE (in. wg)

0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0

Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp Rpm Bhp

3700 ——————869 1.89 928 2.17 984 2.43 1036 2.68 1080 2.90 1114 3.07 1135 3.17

3800 ——————880 1.98 937 2.28 993 2.55 1046 2.81 1092 3.05 1129 3.25 1156 3.39

3900 ——————891 2.08 947 2.39 1002 2.66 1055 2.94 1102 3.20 1143 3.42 1174 3.59

4000 ——————902 2.19 957 2.50 1011 2.79 1064 3.07 1112 3.34 1155 3.59 1190 3.80

4100 ————860 2.09 914 2.31 967 2.60 1021 2.91 1072 3.20 1121 3.49 1165 3.76 1203 3.99

4200 ————873 2.21 926 2.44 978 2.71 1030 3.04 1081 3.34 1130 3.64 1175 3.92 1215 4.18

4300 ————886 2.33 938 2.57 989 2.83 1040 3.18 1090 3.48 1139 3.79 1185 4.08 1226 4.36

4400 ————899 2.46 951 2.71 1000 2.96 1050 3.31 1100 3.63 1148 3.94 1194 4.25 1236 4.54

4500 ————912 2.59 963 2.86 1012 3.09 1061 3.43 1109 3.78 1157 4.09 1203 4.42 1246 4.72

4600 ——868 2.42 925 2.73 975 3.00 1024 3.25 1071 3.56 1119 3.93 1166 4.26 1212 4.58 1255 4.91

4700 ——882 2.56 937 2.86 988 3.16 1036 3.42 1082 3.70 1129 4.09 1175 4.43 1221 4.76 1264 5.09

4800 ——896 2.71 950 3.00 1001 3.32 1048 3.59 1093 3.86 1139 4.24 1185 4.60 1230 4.93 ——

4900 ——910 2.86 963 3.15 1014 3.48 1060 3.76 1105 4.02 1150 4.38 1194 4.77 1239 5.12 ——

5000 867 2.65 924 3.01 977 3.30 1027 3.65 1073 3.94 1117 4.20 1161 4.54 1204 4.95 ————

5100 882 2.79 938 3.17 990 3.46 1040 3.82 1085 4.12 1129 4.40 1172 4.71 1214 5.13 ————

5200 896 2.95 952 3.33 1003 3.63 1053 4.00 1098 4.30 1141 4.60 1183 4.91 ——————

5300 911 3.11 967 3.50 1017 3.80 1066 4.18 1111 4.50 1153 4.80 1194 5.08 ——————

5400 926 3.27 981 3.68 1030 3.98 1079 4.35 1124 4.70 1166 5.01 ————————

5500 940 3.44 995 3.86 1044 4.17 1092 4.54 1137 4.91 1178 5.22 ————————

5600 955 3.62 1010 4.04 1058 4.38 1105 4.73 1150 5.12 ——————————

5700 970 3.80 1024 4.23 1072 4.59 1118 4.93 ————————————

5800 985 3.99 1039 4.42 1086 4.80 1131 5.14 ————————————

5900 1000 4.18 1053 4.62 1100 5.02 ——————————————

6000 1015 4.39 1068 4.83 1114 5.25 ——————————————

6100 1030 4.59 1083 5.04 ————————————————

6200 1046 4.81 ——————————————————

Bhp —Brake Horsepower Input to Fan

FIOP —Factory-Installed Option

40

PERFORMANCE DATA (cont)

OUTDOOR SOUND POWER (TOTAL UNIT)

LEGEND

ECONOMIZER STATIC PRESSURE DROP (in. wg)

581B036-072

ECONOMIZER STATIC PRESSURE DROP (in. wg)

581B090-150

EVAPORATOR-FAN MOTOR EFFICIENCY

*Single phase/3 phase.

NOTE: Convert bhp to watts using the following formula:

FIOP PERFECT HUMIDITY™ DEHUMIDIFICATION

PACKAGE STATIC PRESSURE DROP (in. wg)

LEGEND

FIOP — Factory-Installed Option

UNIT

581B

ARI

RATING

(dB)

OCTAVE BANDS

63 125 250 500 1000 2000 4000 8000

036,048 76 55.9 66.0 64.0 66.2 68.4 64.5 61.7 57.3

060,072 80 59.1 68.9 68.7 71.9 74.0 68.9 65.7 59.0

090-102 82 62.2 69.3 71.5 74.7 76.2 72.9 68.7 61.5

120 84 64.6 71.1 73.3 76.9 77.6 73.7 70.6 63.7

150 86 63.7 69.9 72.5 78.2 81.1 77.3 73.3 66.8

ARI —Air Conditioning and Refrigeration Institute

dB —Sound Levels (decibels)

UNIT CFM

900 1200 1400 1600 1800 2000 2200 2400 2600

Durablade .05 .05 .05 .05 .05 .05 .05 .05 .05

EconoMi$er —.09 .12 .15 .19 .24 .29 .35 —

ECONOMIZER CFM

2200 2500 3000 3500 4000 4500 5000 5500 6000

Durablade .02 .02 .030 .040 .05 .06 .07 .08 .09

EconoMi$er ——.125 .180 .27 .34 .40 ——

UNIT SIZE

581B EFFICIENCY %

036,048 75

060* 74/84

072 84

090,102 80

120 85

150 87

watts = bhp (746)

motor efficiency

UNIT SIZE

581B

UNIT NOMINAL

TONS

CFM PER TON

300 400 500

036 3 .04 .07 .09

048 4 .07 .12 .15

060 5 .09 .15 .21

072 6 .12 .20 .28

090 71/2.08 .13 .18

102 81/2.10 .15 .22

120 10 .08 .13 .18

150 121/2.11 .18 .26

41

PERFORMANCE DATA (cont)

581B FAN RPM AT MOTOR PULLEY SETTING WITH STANDARD MOTOR

581B FAN RPM AT MOTOR PULLEY SETTING WITH HIGH-STATIC MOTOR

EVAPORATOR-FAN MOTOR DATA — STANDARD MOTOR

LEGEND

Bhp — Brake Horsepower

*Extensive motor and electrical testing on these units ensures that the

full horsepower and watts range of the motors can be utilized with con-

fidence. Using your fan motors up to the ratings shown in this table will

not result in nuisance tripping or premature motor failure. Unit warranty

will not be affected.

STANDARD MOTOR

Unit

581B

Motor Pulley Turns Open

01/211

1/222

1/233

1/244

1/255

1/26

036 1090 1055 1025 990 960 925 890 860 825 795 760 ——

048 1185 1150 1115 1080 1045 1015 980 945 910 875 840 ——

060

(single-phase) 1460 1425 1385 1350 1315 1275 1240 1205 1165 1130 1095 1055 1020

060 (3-phase)

and 072 1585 1540 1490 1445 1400 1350 1305 1260 1210 1165 1120 ——

090,102 1085 1060 1035 1010 985 960 935 910 890 865 840 ——

120 1080 1060 1035 1015 990 970 950 930 905 885 860 ——

150 1260 1220 1185 1155 1130 1100 1075 1045 1015 990 960 930 900

HIGH-STATIC MOTOR

Unit

581B

Motor Pulley Turns Open

01/211

1/222

1/233

1/244

1/255

1/26

036 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075

048 1455 1423 1392 1360 1328 1297 1265 1233 1202 1170 1138 1107 1075

060 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 ——

072 1685 1589 1557 1525 1493 1460 1428 1396 1364 1332 1300 ——

090 1080 1025 1007 988 970 952 933 915 897 878 860 ——

102 1080 1025 1007 988 970 952 933 915 897 878 860 ——

120 1130 1112 1087 1062 1037 1212 987 962 937 912 887 962 830

UNIT

581B

UNIT

PHASE

MAXIMUM

CONTINUOUS BHP*

MAXIMUM

OPERATING WATTS* UNIT VOLTAGE MAXIMUM

AMP DRAW

036

Single 1.20 1000 208/230 4.9

Three 1.20 1000

208/230 4.9

460 2.2

575 2.2

048

Single 1.20 1000 208/230 4.9

Three 1.20 1000

208/230 4.9

460 2.2

575 2.2

060

Single 1.30 1650 208/230 10.1

Three 2.40 2120

208/230 6.7

460 3.0

575 3.0

072 Three 2.40 2120

208/230 6.7

460 3.0

575 3.0

090,102 Three 2.90 2615

208/230 8.6

460 3.9

575 3.9

120 Three 3.70 3775

208/230 12.2

460 5.5

575 5.5

150 Three 5.25 4400

208/230 17.3

460 8.5

575 8.5

42

PERFORMANCE DATA (cont)

EVAPORATOR-FAN MOTOR DATA — HIGH-STATIC MOTORS

LEGEND

Bhp — Brake Horsepower

*Extensive motor and electrical testing on these units ensures that the full

horsepower and watts range of the motors can be utilized with confidence.

Using your fan motors up to the ratings shown in this table will not result in

nuisance tripping or premature motor failure. Unit warranty will not be

affected.

UNIT

581B

UNIT

PHASE

MAXIMUM

CONTINUOUS BHP*

MAXIMUM

OPERATING WATTS* UNIT VOLTAGE MAXIMUM

AMP DRAW

036 Three 2.40 2120

208/230 6.7

460 3.0

575 3.0

046 Three 2.40 2120

208/230 6.7

460 3.0

575 3.0

060 Three 2.90 2615

208/230 8.6

460 3.9

575 3.9

072 Three 2.90 2615

208/230 8.6

460 3.9

575 3.9

090,102 Three 4.20 3775

208/230 12.2

460 5.5

575 5.5

120 Three 5.25 4400

208/230 17.5

460 8.5

575 8.5

Durablade Economizer Barometric Relief

Damper Characteristics — 581B036-072

Durablade Economizer Barometric Relief

Damper Characteristics — 581B090-150

43

PERFORMANCE DATA (cont)

50

40

30

20

10

0

00.25 0.5 0.75 1

FLOW (CFM)

STATIC PRESSURE (in. wg)

3 TO 6 TON

7 1/2 TO 12 1/2 TON

0.25

0.20

0.15

0.10

0.05

0.00

1200 2000 2800 3600 4400

FLOW (CFM)

STATIC PRESSURE (in. wg)

3 TO 6 TON

7 1/2 TO 12 1/2 TON

0.35

0.30

EconoMi$er Outdoor-Air Leakage EconoMi$er Return-Air Pressure Drop

0.25

0.20

0.15

0.10

0.05

0.00

0500 1000 1500 2000

FLOW (CFM)

STATIC PRESSURE (in. wg)

3 TO 6 TON

7 1/2 TO 12 1/2 TON

EconoMi$er Barometric Relief

Damper Characteristics

FLOW (cfm)

00.1 0.2 0.3 0.4 0.5

STATIC PRESSURE (in. wg)

2 FANS

OPERATING

1 FAN

OPERATING

2500

2000

1500

1000

500

0

5000

4000

3000

2000

1000

0

00.1 0.2 0.3 0.4 0.5

STATIC PRESSURE (in. wg)

FLOW (cfm)

2 FANS

OPERATING

1 FAN

OPERATING

EconoMi$er Power Exhaust Performance

(581B036-072) EconoMi$er Power Exhaust Performance

(581B090-150)

44

PERFORMANCE DATA (cont)

ALTITUDE COMPENSATION*

581B036-072

*As the height above sea level increases, there is less oxygen per cubic foot of air.

Therefore, heat input rate should be reduced at higher altitudes.

†Orifices available through your Bryant distributor.

ALTITUDE COMPENSATION*

581B090-150

*As the height above sea level increases, there is less oxygen per cubic

foot of air. Therefore, heat input rate should be reduced at higher

altitudes.

†Orifices available through your local Bryant distributor.

ALTITUDE DERATING FACTOR*

581B036-150

*Derating of the unit is not required unless the heating value of the

gas exceeds the values listed in the table above, or if the elevation

exceeds 6000 ft. Derating conditions must be 4% per thousand ft

above sea level. For example, at 4000 ft, if the heating value of the

gas exceeds 1000 Btu/ft3, the unit will require a 16% derating. For

elevations above 6000 ft, the same formula applies. For example, at

7000 ft, the unit will require a 28% derating of the maximum heating

value per the National Fuel Gas Code.

ELEVATIO

N

(ft)

72,000 AND 115,000/

60,000 and 90,000

BTUH NOMINAL

INPUT*

150,000/120,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Size†

Liquid

Propane

Orifice

Size†

Natural

Gas

Orifice

Size†

Liquid

Propane

Orifice

Size†

0-2,000 33/38 43/45 30/32 38/42

2,000 34/39 43/46 30/33 39/42

3,000 35/40 44/47 31/34 40/43

4,000 36/41 44/47 32/35 41/43

5,000 36/41 44/48 33/35 42/43

6,000 37/42 45/48 34/36 43/44

7,000 37/42 45/49 35/37 43/44

8,000 38/43 46/49 36/37 44/45

9,000 39/43 47/50 37/38 44/46

10,000 41/44 48/50 38/40 45/47

11,000 43/45 48/51 39/41 45/48

12,000 44/45 49/51 40/42 46/49

13,000 44/46 49/52 41/43 47/49

14,000 45/47 50/52 42/43 47/50

ELEVATION

(ft)

125,000-224,000 BTUH

NOMINAL INPUT

250,000 BTUH

NOMINAL INPUT

Natural

Gas

Orifice

Size†

Liquid

Propane

Orifice

Size†

Natural

Gas

Orifice

Size†

Liquid

Propane

Orifice

Size†

0-2,000 31 41 30 38

2,000 32 42 30 39

3,000 32 42 31 40

4,000 32 42 32 41

5,000 33 43 33 42

6,000 34 43 34 43

7,000 35 44 35 43

8,000 36 44 36 44

9,000 37 45 37 44

10,000 38 46 38 45

11,000 39 47 39 45

12,000 40 47 40 46

13,000 41 48 41 47

14,000 42 48 42 47

ELEVATION MAXIMUM HEATING VALUE

(Btu/ft3)

0-2000 1100

2001-3000 1050

3001-4000 1000

4001-5000 950

5001-6000 900

45

ELECTRICAL DATA

581B036-072 STANDARD MOTOR (Units Without Electrical Convenience Outlet)

581B036-072 STANDARD MOTOR (Units With Electrical Convenience Outlet)

LEGEND

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combination

load equipment (refer to NEC Articles 430 and 440), the overcurrent

protective device for the unit shall be fuse or HACR breaker. UL, Can-

ada units may be fuse or circuit breaker.

2. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is

greater than 2%. Use the following formula to determine the percent of

voltage imbalance.

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

= 457

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v

(AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maximum

allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%, con-

tact your local electric utility company immediately.

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAGE

RANGE COMPRESSOR OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

WITH OUTLET

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA FLA MCA MOCP†FLA LRA

036

(3 Tons)

208/230-1-60 187 254 16.0 88.0 0.7 4.9 .57 25.6/25.6 35/35 25/25 101/101

208/230-3-60 187 254 10.3 77.0 0.7 4.9 .57 18.5/18.5 25/25 18/18 90/ 90

460-3-60 414 508 5.1 39.0 0.4 2.2 .30 9.0 15 9 46

575-3-60 518 632 4.2 31.0 0.4 2.2 .30 7.3 15 7 36

048

(4 Tons)

208/230-1-60 187 254 23.7 129.0 0.7 4.9 .57 35.2/35.2 45/45 34/34 142/142

208/230-3-60 187 254 13.5 99.0 0.7 4.9 .57 22.5/22.5 30/30 22/22 112/112

460-3-60 414 508 7.4 49.5 0.4 2.2 .30 11.9 15 12 56

575-3-60 518 632 5.8 40.0 0.4 2.2 .30 9.3 15 9 45

060

(5 Tons)

208/230-1-60 187 254 28.8 169.0 1.5 8.8 .57 46.3/46.3 60/60 45/45 216/216

208/230-3-60 187 254 17.3 123.0 1.5 5.8 .57 28.9/28.9 35/35 28/28 168/168

460-3-60 414 508 9.0 62.0 0.8 2.6 .30 14.7 20 14 84

575-3-60 518 632 7.1 50.0 0.8 2.6 .30 11.6 15 11 67

072

(6 Tons)

208/230-3-60 187 254 20.5 156.0 1.4 5.8 .57 32.8/32.8 40/40 32/32 200/200

460-3-60 414 508 9.6 70.0 0.6 2.6 .30 15.2 20 15 92

575-3-60 518 632 7.7 56.0 0.6 2.6 .30 12.2 15 13 78

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAGE

RANGE COMPRESSOR OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

WITH OUTLET

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA FLA MCA MOCP†FLA LRA

036

(3 Tons)

208/230-1-60 187 254 16.0 88.0 0.7 4.9 .57 31.6/31.6 40/40 30/30 106/106

208/230-3-60 187 254 10.3 77.0 0.7 4.9 .57 24.5/24.5 30/30 24/24 95/95

460-3-60 414 508 5.1 39.0 0.4 2.2 .30 11.7 15 11 48

575-3-60 518 632 4.2 31.0 0.4 2.2 .30 9.5 15 9 38

048

(4 Tons)

208/230-1-60 187 254 23.7 129.0 0.7 4.9 .57 41.2/41.2 50/50 39/39 147/147

208/230-3-60 187 254 13.5 99.0 0.7 4.9 .57 28.5/28.5 35/35 27/27 117/117

460-3-60 414 508 7.4 49.5 0.4 2.2 .30 14.6 20 14 58

575-3-60 518 632 5.8 40.0 0.4 2.2 .30 11.5 15 11 47

060

(5 Tons)

208/230-1-60 187 254 28.8 169.0 1.5 8.8 .57 52.3/52.3 60/60 50/50 221/221

208/230-3-60 187 254 17.3 123.0 1.5 5.8 .57 34.9/34.9 40/40 34/34 173/173

460-3-60 414 508 9.0 62.0 0.8 2.6 .30 17.4 20 17 86

575-3-60 518 632 7.1 50.0 0.8 2.6 .30 13.8 20 13 69

072

(6 Tons)

208/230-3-60 187 254 20.5 156.0 1.4 5.8 .57 38.8/38.8 45/45 37/37 205/205

460-3-60 414 508 9.6 70.0 0.6 2.6 .30 17.9 20 17 94

575-3-60 518 632 7.7 56.0 0.6 2.6 .30 14.3 20 15 79

FLA —Full Load Amps

HACR —Heating, Air Conditioning and Refrigeration

IFM —Indoor (Evaporator) Fan Motor

LRA —Locked Rotor Amps

MCA —Minimum Circuit Amps

MOCP —Maximum Overcurrent Protection

NEC —National Electrical Code

OFM —Outdoor (Condenser) Fan Motor

RLA —Rated Load Amps

UL —Underwriters’ Laboratories

= 100 x max voltage deviation from average voltage

average voltage

Average Voltage = 452 + 464 + 455

3

= 1371

3

7

457

46

ELECTRICAL DATA (cont)

581B036-072 HIGH-STATIC MOTOR (Units Without Electrical Convenience Outlet)

581B036-072 HIGH-STATIC MOTOR (Units With Electrical Convenience Outlet)

LEGEND

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker.

NOTES:

1. In compliance with NEC requirements for multimotor and combina-

tion load equipment (refer to NEC Articles 430 and 440), the overcur-

rent protective device for the unit shall be fuse or HACR breaker. UL,

Canada units may be fuse or circuit breaker.

2. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is

greater than 2%. Use the following formula to determine the percent

of voltage imbalance.

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

= 457

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v

(AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maxi-

mum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%,

contact your local electric utility company immediately.

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAGE

RANGE

COMPRESSOR

(each) OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA RLA MCA MOCP†FLA LRA

036

208/230-3-60 187 254 10.3 77.0 0.7 5.8 0.6 19.4/19.4 25/25 19/19 120/120

460-3-60 414 508 5.1 39.0 0.4 2.6 0.3 9.4 15 9 60

575-3-60 518 632 4.2 31.0 0.4 2.6 0.3 7.7 15 8 48

048

208/230-3-60 187 254 13.5 99.0 0.7 5.8 0.6 23.4/23.4 30/30 23/23 142/142

460-3-60 414 508 7.4 49.5 0.4 2.6 0.3 12.3 15 12 71

575-3-60 518 632 5.8 40.0 0.4 2.6 0.3 9.7 15 9 57

060

208/230-3-60 187 254 17.3 123.0 1.5 7.5 0.6 30.6/30.6 35/35 30/30 187/187

460-3-60 414 508 9.0 62.0 0.8 3.4 0.3 15.5 20 15 94

575-3-60 518 632 7.1 50.0 0.8 3.4 0.3 12.2 15 12 76

072

208/230-3-60 187 254 20.5 156.0 1.4 7.5 0.6 30.6/30.6 35/35 30/30 187/187

460-3-60 414 508 9.6 70.0 0.6 3.4 0.3 15.5 20 15 94

575-3-60 518 632 7.7 56.0 0.6 3.4 0.3 12.2 15 12 76

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAG E

RANGE

COMPRESSOR

(each) OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA RLA MCA MOCP†FLA LRA

036

208/230-3-60 187 254 10.3 77.0 0.7 5.8 0.6 25.4/25.4 30/30 25 124/124

460-3-60 414 508 5.1 39.0 0.4 2.6 0.3 12.1 15 12 63

575-3-60 518 632 4.2 31.0 0.4 2.6 0.3 9.8 15 10 50

048

208/230-3-60 187 254 13.5 99.0 0.7 5.8 0.6 29.4/29.4 35/35 29 146/146

460-3-60 414 508 7.4 49.5 0.4 2.6 0.3 15.0 20 14 73

575-3-60 518 632 5.8 40.0 0.4 2.6 0.3 11.8 15 11 59

060

208/230-3-60 187 254 17.3 123.0 1.5 7.5 0.6 36.6/36.6 40/40 36 192/192

460-3-60 414 508 9.0 62.0 0.8 3.4 0.3 18.2 20 18 96

575-3-60 518 632 7.1 50.0 0.8 3.4 0.3 14.4 20 14 77

072

208/230-3-60 187 254 20.5 156.0 1.4 7.5 0.6 40.5/40.5 45/45 39 224/224

460-3-60 414 508 9.6 70.0 0.6 3.4 0.3 18.7 25 18 104

575-3-60 518 632 7.7 56.0 0.6 3.4 0.3 15.0 20 15 89

FLA —Full Load Amps

HACR —Heating, Air Conditioning and Refrigeration

IFM —Indoor (Evaporator) Fan Motor

LRA —Locked Rotor Amps

MCA —Minimum Circuit Amps

MOCP—Maximum Overcurrent Protection

NEC —National Electrical Code

OFM —Outdoor (Condenser) Fan Motor

RLA —Rated Load Amps

UL —Underwriters’ Laboratories

= 100 x max voltage deviation from average voltage

average voltage

Average Voltage = 452 + 464 + 455

3

= 1371

3

7

457

47

ELECTRICAL DATA (cont)

581B090-150 STANDARD MOTOR (Units Without Electrical Convenience Outlet)

581B090-150 STANDARD MOTOR (Units With Electrical Convenience Outlet)

LEGEND

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker per NEC.

NOTES:

1. In compliance with NEC requirements for multimotor and combina-

tion load equipment (refer to NEC Articles 430 and 440), the overcur-

rent protective device for the unit shall be fuse or HACR breaker. The

UL, Canadian approved units may be fuse or circuit breaker.

2. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is

greater than 2%. Use the following formula to determine the percent

of voltage imbalance.

% Voltage imbalance

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

= 457

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v

(AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maxi-

mum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%,

contact your local electric utility company immediately.

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAG E

RANGE COMPRESSOR OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

WITH OUTLET

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA FLA MCA MOCP FLA LRA

090

208/230-3-60 187 254 12.4 88.0 1.4 7.5 .57 38.2/38.2 45/45†40/40 242/242

460-3-60 414 508 6.4 44.0 0.7 3.4 .30 19.2 25†20 121

575-3-60 518 632 4.8 34.0 0.7 3.4 .30 14.6 20†16 95

102

208/230-3-60 187 254 15.0 99.0 1.4 7.5 .57 44.1/44.1 50/50†46/46 264/264

460-3-60 414 508 8.2 49.5 0.7 3.4 .30 23.3 30†24 132

575-3-60 518 632 5.8 40.0 0.7 3.4 .30 16.9 20†18 107

120

208/230-3-60 187 254 18.9 125.0 1.4 10.6 .57 55.9/55.9 60/60†59/59 341/341

460-3-60 414 508 9.0 62.5 0.7 4.8 .30 26.5 30†28 171

575-3-60 518 632 7.1 50.0 0.7 4.8 .30 20.9 25†22 136

150

208/230-3-60 187 254 19.0 156.0 1.4 15.0 .57 60.6/60.6 70/70 64/64 426/426

460-3-60 414 508 9.0 70.0 0.7 7.4 .30 29.1 35†31 197

575-3-60 518 632 7.4 54.0 0.7 7.4 .30 23.7 30†25 154

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAG E

RANGE COMPRESSOR OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

WITH OUTLET

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA FLA MCA MOCP FLA LRA

090

208/230-3-60 187 254 12.4 88.0 1.4 7.5 .57 44.2/44.2 50/50†46/46 247/247

460-3-60 414 508 6.4 44.0 0.7 3.4 .30 21.9 25†23 124

575-3-60 518 632 4.8 34.0 0.7 3.4 .30 16.8 20†18 97

102

208/230-3-60 187 254 15.0 99.0 1.4 7.5 .57 50.1/50.1 60/60†52/52 269/269

460-3-60 414 508 8.2 49.5 0.7 3.4 .30 26.0 30†27 135

575-3-60 518 632 5.8 40.0 0.7 3.4 .30 19.1 25†20 109

120

208/230-3-60 187 254 18.9 125.0 1.4 10.6 .57 61.9/61.9 70/70 64/64 345/345

460-3-60 414 508 9.0 62.5 0.7 4.8 .30 29.2 35†30 173

575-3-60 518 632 7.1 50.0 0.7 4.8 .30 23.1 25†24 139

150

208/230-3-60 187 254 19.0 156.0 1.4 15.0 .57 66.6/66.6 80/70 70/70 430/430

460-3-60 414 508 9.0 70.0 0.7 7.4 .30 31.8 35†33 199

575-3-60 518 632 7.4 54.0 0.7 7.4 .30 25.9 30†27 156

FLA —Full Load Amps

HACR —Heating, Air Conditioning and Refrigeration

IFM —Indoor (Evaporator) Fan Motor

LRA —Locked Rotor Amps

MCA —Minimum Circuit Amps

MOCP—Maximum Overcurrent Protection

NEC —National Electrical Code

OFM —Outdoor (Condenser) Fan Motor

RLA —Rated Load Amps

UL —Underwriters’ Laboratories

= 100 x max voltage deviation from average voltage

average voltage

Average Voltage = 452 + 464 + 455

3

= 1371

3

7

457

48

ELECTRICAL DATA (cont)

581B090-120 HIGH-STATIC MOTOR (Units Without Electrical Convenience Outlet)

581B090-120 HIGH-STATIC MOTOR (Units With Electrical Convenience Outlet)

LEGEND

*Used to determine minimum disconnect per NEC.

†Fuse or HACR circuit breaker per NEC.

NOTES:

1. In compliance with NEC requirements for multimotor and combina-

tion load equipment (refer to NEC Articles 430 and 440), the overcur-

rent protective device for the unit shall be fuse or HACR breaker. The

UL, Canada approved units may be fuse or circuit breaker.

2. Unbalanced 3-Phase Supply Voltage

Never operate a motor where a phase imbalance in supply voltage is

greater than 2%. Use the following formula to determine the percent

of voltage imbalance.

% Voltage imbalance

Example: Supply voltage is 460-3-60.

AB = 452 v

BC = 464 v

AC = 455 v

= 457

Determine maximum deviation from average voltage.

(AB) 457 – 452 = 5 v

(BC) 464 – 457 = 7 v

(AC) 457 – 455 = 2 v

Maximum deviation is 7 v.

Determine percent of voltage imbalance.

% Voltage Imbalance = 100 x

= 1.53%

This amount of phase imbalance is satisfactory as it is below the maxi-

mum allowable 2%.

IMPORTANT: If the supply voltage phase imbalance is more than 2%,

contact your local electric utility company immediately.

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAGE

RANGE

COMPRESSOR

(each) OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA RLA MCA MOCP FLA LRA

090

208/230-3-60 187 254 12.4 88.0 1.4 10.6 0.6 41.3 45†44 267

460-3-60 414 508 6.4 44.0 0.7 4.8 0.3 20.6 25†22 134

575-3-60 518 632 4.8 34.0 0.7 4.8 0.3 15.8 20†17 95

102

208/230-3-60 187 254 15.0 99.0 1.4 10.6 0.6 47.2 60†50 264

460-3-60 414 508 8.2 49.5 0.7 4.8 0.3 24.7 30†26 132

575-3-60 518 632 5.8 40.0 0.7 4.8 0.3 18.0 20†19 107

120

208/230-3-60 187 254 17.3 125.0 1.4 15.0 0.6 56.7 70 61 360

460-3-60 414 508 9.0 62.0 0.7 7.4 0.3 29.1 35†29 181

575-3-60 518 632 7.1 50.0 0.7 7.4 0.3 23.0 25†23 136

UNIT

581B

NOMINAL

VOLTAGE

(V-Ph-Hz)

VOLTAGE

RANGE

COMPRESSOR

(each) OFM IFM COMBUSTION

FAN MOTOR

POWER

SUPPLY

MINIMUM UNIT

DISCONNECT

SIZE*

Min Max RLA LRA FLA FLA RLA MCA MOCP FLA LRA

090

208/230-3-60 187 254 12.4 88.0 1.4 10.6 0.6 47.3 50†49 267

460-3-60 414 508 6.4 44.0 0.7 4.8 0.3 23.3 25†24 134

575-3-60 518 632 4.8 34.0 0.7 4.8 0.3 18.5 20†19 95

102

208/230-3-60 187 254 15.0 99.0 1.4 10.6 0.6 53.2 60†55 264

460-3-60 414 508 8.2 49.5 0.7 4.8 0.3 27.4 30†28 132

575-3-60 518 632 5.8 40.0 0.7 4.8 0.3 20.7 25†21 107

120

208/230-3-60 187 254 17.3 125.0 1.4 15.0 0.6 62.7 70 66 360

460-3-60 414 508 9.0 62.0 0.7 7.4 0.3 31.8 35†32 181

575-3-60 518 632 7.1 50.0 0.7 7.4 0.3 25.7 30†25 147

FLA —Full Load Amps

HACR —Heating, Air Conditioning and Refrigeration

IFM —Indoor (Evaporator) Fan Motor

LRA —Locked Rotor Amps

MCA —Minimum Circuit Amps

MOCP—Maximum Overcurrent Protection

NEC —National Electrical Code

OFM —Outdoor (Condenser) Fan Motor

RLA —Rated Load Amps

UL —Underwriters’ Laboratories

= 100 x max voltage deviation from average voltage

average voltage

Average Voltage = 452 + 464 + 455

3

= 1371

3

7

457

49

APPLICATION DATA

1. CONDENSATE DRAIN PAN — A sloped condensate drain

pan is supplied on all units. The condensate pan must be

externally trapped. Condensate drains are located on both

the bottom and end of the unit.

2. DUCTWORK — All ductwork must be attached to flanges.

If no flanges are present, they must be field supplied.

Secure vertical discharge ductwork to roof curb. For hori-

zontal discharge applications, attach ductwork to flanges.

Field-supplied flanges can be attached to horizontal dis-

charge openings and all ductwork attached to flanges.

3. TO CONVERT FROM VERTICAL DISCHARGE TO HORI-

ZONTAL DISCHARGE (Durablade Economizer Only):

a. Remove economizer/two-position damper to gain access

to return duct opening.

b. Move the horizontal-discharge duct opening covers to

the vertical discharge openings.

c. Rotate economizer 90 degrees (until the economizer/

two-position damper motor faces the condenser section).

d. Rotate the barometric relief damper 90 degrees.

e. Install block-off plate over the opening on the access

panel.

4. THERMOSTAT — Use of 2-stage cooling thermostat is

recommended for all size 036-072 units equipped with

economizer.

5. HEATING-TO-COOLING CHANGEOVER — All units are

automatic changeover from heating to cooling when auto-

matic changeover thermostat and subbase are used.

6. AIRFLOW — Units are draw-thru on cooling and blow-thru

on heating.

7. MAXIMUM AIRFLOW — To minimize possibility of conden-

sate blow-off from evaporator, airflow through units should

not exceed 500 cfm/ton.

8. MINIMUM AIRFLOW — Minimum airflow for cooling is

300 cfm/ton.

9. MINIMUM AMBIENT OPERATING TEMPERATURE —

Minimum ambient operating temperature for size 036-150

standard units is 25 F. With accessory Motormaster® or

Motormaster II control, units can operate at outdoor tem-

peratures down to –20 F.

10. MAXIMUM OPERATING OUTDOOR-AIR TEMPERATURE

— Maximum outdoor-air operating temperature for cooling

is 125 F.

11. HIGH ALTITUDES — These may require a change to the

gas orifice. Refer to Altitude Compensation tables on

page 43.

12. MINIMUM TEMPERATURE — Minimum temperature of air

entering the dimpled heat exchanger is 50 F continuous

and 45 F intermittent.

13. MOTOR DATA — Due to Bryant’s internal unit design

(draw-thru over the motor), air path, and specially designed

motors, the full horsepower (maximum continuous bhp)

listed in the Physical Data table and the notes following

each Fan Performance table can be utilized with extreme

confidence.

Using Bryant motors to the values listed in the Physical

Data, Fan Performance, and Evaporator-Fan Motor Data

tables will not result in nuisance tripping or premature

motor failure. In addition, the unit warranty will not be

affected.

14. THRU-THE-BOTTOM CONNECTIONS — The accessory

thru-the-bottom connections are needed to ensure proper

connections when routing wiring and piping through the

basepan and roof curb. This accessory is used for electric

and control power only.

15. PERFECT HUMIDITY™ DEHUMIDIFICATION PACKAGE

— This option provides greater dehumidification by further

subcooling the hot liquid refrigerant leaving the condenser

coil. The Perfect Humidity package consists of a subcooling

coil located on the leaving-air side of the evaporator coil.

The location of the coil in the indoor airstream enhances

the latent capacity of the 581B rooftop units by up to 40%.

Many buildings suffer damage or have poor indoor-air qual-

ity due to overly humid conditions. Building humidity must

be controlled for the following reasons:

a. INDOOR-AIR QUALITY — Humidity is a major factor in

the growth and propagation of mold and mildew in a

building. The mold and mildew can spread quickly and

grow in carpets and ductwork and on walls, and often

causes cases of sick building syndrome. This syndrome

can lead to employee absenteeism due to illness, lower

worker productivity, and increased health care costs.

The American Society of Heating, Refrigeration, and

Air Conditioning Engineers (ASHRAE) recommends

that relative humidity levels in buildings be maintained

below 70%.

b. COMFORT LEVELS — High humidity levels cause the

occupied space to become uncomfortable, because

humidity interferes with the body’s natural cooling pro-

cess (evaporation at the skin surface).

c. HUMIDITY DAMAGE — Humidity causes property

damage, such as stained wallpaper and ceiling tiles.

Humidity can also damage books and artwork, and

create strong odors in carpets. In addition, humidity can

contribute to unacceptable product quality in industrial

processes.

d. IMPROPER VENTILATION — Buildings in hot and

humid geographical areas cannot be properly ventilated

due to high humidity levels outdoors, resulting in poor

indoor-air quality.

e. EQUIPMENT INEFFICIENCY — Humidity can cause

inefficient operation of refrigerators and freezers.

f. INCREASED ENERGY COSTS — Because of high

humidity levels and less comfortable conditions, ther-

mostat set points are lowered to force the HVAC (heat-

ing, ventilation, and air conditioning) equipment to run

longer and work harder to lower the humidity levels.

Also, in an attempt to control humidity, system design-

ers typically oversize HVAC equipment and add reheat

capability to get the desired latent capacity. This results

in higher initial equipment costs, as well as increased

energy expenses throughout the life of the unit.

Applications

There are many different rooftop unit applications that are

susceptible to problems caused by high humidity levels.

Some common applications include:

a. RESTAURANTS — The kitchen areas of restaurants

have many humidity-producing activities, such as dish

washing and cooking.

b. SUPERMARKETS — High humidity levels cause ineffi-

ciency in operation of refrigeration and freezer systems.

c. MUSEUMS AND LIBRARIES — Humidity can damage

books and artwork.

d. GYMNASIUMS, LOCKER ROOMS, AND HEALTH

CLUBS — Shower areas and human perspiration

cause uncomfortable occupied space conditions.

e. HOT AND HUMID CLIMATES — The southeastern

United States is a good example of this application. The

Perfect Humidity dehumidification package becomes

particularly useful when increased amounts of the hot

and humid outdoor air need to be brought into the build-

ing for proper ventilation.

16. PERFECT HUMIDITY DEHUMIDIFICATION PACKAGE

DESIGN EFFECTS — To fully understand the operation of

the Perfect Humidity dehumidification package, refer to the

pressure enthalpy curve, and analyze the Perfect Humidity

package effects on the refrigerant in the rooftop unit. The

pressure enthalpy curve shows the refrigerant cycle for a

581B rooftop unit.

50

APPLICATION DATA (cont)

Standard Unit Refrigerant Cycle

At point no. 1 in the pressure enthalpy curve, vapor leaving the

compressor at a high pressure and a high temperature enters

the condenser. The condenser removes heat from the refriger-

ant, lowers its temperature, and changes it to a liquid. At point

no. 2, the liquid leaves the condenser and enters a fixed expan-

sion device that lowers the pressure of the refrigerant. At point

no. 3, the liquid enters the evaporator coil, where the refrigerant

increases in temperature and changes back to a vapor. At point

no. 4, the vapor leaves the evaporator and reenters the com-

pressor.

Refrigerant Cycle Using Perfect Humidity™ Dehumidification

Package

When a subcooler coil is added to the rooftop unit, the refriger-

ant is affected in such a way that the unit latent capacity is

increased. The refrigerant cycle follows the same path from

point no. 1 to point no. 2 as the standard refrigerant cycle with-

out a subcooler (see the pressure enthalpy curve). However, at

point no. 2, the liquid refrigerant enters the subcooler coil where

the temperature is lowered further. At point no. 2A, this sub-

cooled liquid enters the TXV, which drops the pressure of the

liquid. At point no. 2B, the liquid enters the fixed orifice metering

device. The refrigerant leaves this device as a saturated vapor

and enters the evaporator at point no. 2C. The improved refrig-

eration effect can now be seen between point no. 2C and point

no. 3. The increase in the total refrigeration effect is the addi-

tional enthalpy gained from point no. 2C to point no. 3. However,

the subcooler coil rejects this added refrigeration effect to the

air downstream of the evaporator coil, thus maximizing the over-

all latent effect. This improved latent effect is a direct result of

the addition of the Perfect Humidity subcooler coil to the refrig-

erant cycle.

Latent Capacity Effects

Refer to the psychrometric chart to see how the sensible heat

factor decreases when the optional Perfect Humidity dehumidifi-

cation package is installed. This chart contains data for the

5-ton 581B unit operation, both with and without the Perfect

Humidity package, at 1750 cfm. Point no. 1 on the chart repre-

sents the return-air dry bulb (80 F) and wet bulb (67 F) condi-

tions. Point no. 2 represents the supply-air conditions for a

standard 581B rooftop unit without the Perfect Humidity dehu-

midification package. Point no. 3 represents the supply-air con-

ditions for a 581B rooftop unit with the Perfect Humidity

package. By connecting point no. 1 and point no. 2 on the chart

and finding the intersection on the sensible heat factor scale,

the sensible heat factor is 0.73. Connect point no. 1 and point

no. 3, and see that the sensible heat factor is 0.58. This is a

17.5% increase in latent capacity for the given conditions. This

increase in latent capacity allows the 581B rooftop units to

remove more moisture from the conditioned space; thus lower-

ing the humidity levels.

Dehumidification Effects

Further evidence of dehumidification can be seen by analyzing

the pounds of water per pound of dry air found in the supply air.

At point no. 2 in the psychrometric chart, there are 65 grains

(0.0092 lb) of moisture per pound of dry air. At point no. 3, there

are 58 grains (0.0083 lb) of moisture per pound of dry air. This

is a 12.1% decrease in the amount of water in the supply air.

17. PERFECT HUMIDITY DEHUMIDIFICATION PACKAGE

OPERATING PERFORMANCE — Perfect Humidity dehu-

midification package operation does not affect the electrical

data. The electrical data remains the same either with or

without the Perfect Humidity package.

The operating and shipping weights will be slightly

increased with the addition of the Perfect Humidity sub-

cooler. See the Physical Data table for added base unit

weight with this option.

Refer to cooling performance data, both with and without

the Perfect Humidity dehumidification package. Note the

greatly improved latent capacity with the Perfect Humidity

dehumidification package.

Static pressure is also slightly affected by the addition of

the Perfect Humidity dehumidification package. See Static

Pressure Drop table on page 40 when using this option.

18. PERFECT HUMIDITY DEHUMIDIFICATION PACKAGE

FEATURES AND BENEFITS

•The Perfect Humidity dehumidification package can improve

the humidity control of your rooftop equipment by up to 40%.

This greatly reduces the risk of sick building syndrome by

reducing biological growth in both ductwork and the rest of the

building.

•The Perfect Humidity dehumidification package improves

comfort levels in the building by better controlling the humidity.

This improved comfort level allows building tenants to raise

the cooling set point on the thermostats for accumulated

energy savings.

•Better humidity control lowers the risk of humidity-induced

property damage.

•The Perfect Humidity dehumidification package permits build-

ing refrigerators and freezers to operate more efficiently due

to lower relative humidity levels. This is the perfect solution for

supermarket applications.

•The Perfect Humidity subcooling circuit can be operated by a

humidity sensor. If the sensor is used, the Perfect Humidity

circuit will then only operate when needed. If the humidity lev-

els in the occupied space are acceptable (such as in the

spring and fall seasons), the Perfect Humidity circuit will not

operate. The rooftop unit is then able to operate to its full sen-

sible potential, which provides more efficient performance and

energy savings.

•At lower outdoor temperatures, rooftop units with dehumidifi-

cation devices are subject to low suction pressure conditions.

The Perfect Humidity dehumidification package contains a

low-pressure switch that deactivates the Perfect Humidity

dehumidification package under low suction pressure condi-

tions without deactivating the compressors.

•Improved humidity control allows increased outdoor-air venti-

lation in hot and humid geographical areas. Humidity control

also helps to improve the indoor-air quality of the building.

•The Perfect Humidity dehumidification package is factory

installed. There are no additional field installation costs. There

is also no need to purchase a roof curb from another manu-

facturer, as standard Bryant roof curbs will accommodate the

581B rooftop units which have the Perfect Humidity dehumidi-

fication package option installed.

•The Perfect Humidity dehumidification package is engineered

and manufactured by Bryant for Bryant rooftop units. All appli-

cation support, service, and warranty issues can therefore be

handled through one company.

•The slightly lower sensible capacities obtained when using the

Perfect Humidity dehumidification package allow the unit to

operate for an extended period of time. The more the unit

operates, the more air is exposed to the subcooling coil. This

rooftop unit increased latent capacity results in lower relative

humidity levels in the occupied space.

•It is no longer necessary to oversize equipment and add

reheat devices to properly dehumidify your building. In a typi-

cal scenario, a building owner may need 39,000 Btuh of sensi-

ble capacity and 23,000 Btuh of latent capacity (62,000 total

Btuh). To accomplish this without the Perfect Humidity dehu-

midification package, a 71/2-ton unit with a reheat device

would be necessary to attain the higher latent capacity

required. This results in a large up-front expense to oversize

the equipment from a standard 5-ton to a 71/2-ton unit.

The building owner can now purchase a 5-ton unit with the

Perfect Humidity dehumidification package for a small addi-

tional up-front charge, and no reheat device will be necessary

to satisfy the cooling requirements. This reduces both installa-

tion costs and operating costs throughout the life of the

product.

51

APPLICATION DATA (cont)

Perfect Humidity™ Dehumidification Option

52

APPLICATION DATA (cont)

NOTE: Numbers 1 through 4 indicate point numbers referred to in Perfect Humidity™ Dehumidification Package Design Effects section.

Pressure Enthalpy Curve

53

APPLICATION DATA (cont)

Point 1 —Entering Air (F) 80 db/67 wb

Point 2 —Leaving Air (F) 58.9 db/56.4 wb

(Without Subcooler)

Point 3 —Leaving Air (F) 63.0 db/56.8 wb

(With Subcooler)

LEGEND

db —Dry Bulb

wb—Wet Bulb

Psychrometric Chart (581B072 Shown)

54

TYPICAL PIPING AND WIRING

Vertical Discharge

Horizontal Discharge

LEGEND

NEC — National Electrical Code

55

TYPICAL WIRING SCHEMATIC

581B036-072 Typical Wiring Schematic and Component Arrangement

(208/230 V 3-Phase Unit Shown)

56

TYPICAL WIRING SCHEMATIC (cont)

581B036-072 Typical Wiring Schematic and Component Arrangement

(208/230 V 3-Phase Unit Shown) (cont)

LEGEND

AHA —Adjustable Heat Anticipator

C—Contactor, Compressor

CAP —Capacitor

CC —Cooling Compensator

CLO —Compressor Lockout

COMP —Compressor Motor

D—Diode

EC —Enthalpy Control

ECON —Economizer

EPS —Emergency Power Supply

EQUIP —Equipment

ER —Economizer Relay

FPT —Freeze-Protection Thermostat

FSS —Filter-Status Switch

FU —Fuse

GND —Ground

GVR —Gas Valve Relay

HPS —High-Pressure Switch

HS —Hall-Effect Sensor

HV —High Voltage

I—Ignitor

IDM —Induced-Draft Motor

IFC —Indoor (Evaporator) Fan Contactor

IFM —Indoor (Evaporator) Fan Motor

IGC —Integrated Gas Unit Controller

LED —Light-Emitting Diode

LPS —Low-Pressure/Loss-of-Charge Switch

LS —Limit Switch

MGV —Main Gas Valve

MTR —Motor

OAT —Outdoor-Air Thermostat

OFM —Outdoor (Condenser) Fan Motor

OLR —Overload

P—Plug

PL —Plug Assembly

QT —Quadruple Terminal

R—Relay

RS —Rollout Switch

SAT —Supply-Air Thermostat

SEN —Sensor

SW1 —Switch Fully Open

SW2 —Switch Fully Closed

SW3 —Switch Minimum Vent Position

SW4 —Switch Maximum Vent Position

TC —Thermostat-Cooling

TH —Thermostat-Heating

TRAN —Transformer

Field Splice

Marked Wire

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Splice (Marked)

Factory Wiring

Field Control Wiring

Field Power Wiring

Accessory or Optional Wiring

To indicate common potential only.

Not to represent wiring.

NOTES:

1. If any of the original wire furnished must be replaced, it must be replaced with Type 90 C wire or its equivalent.

2. Three-phase motors are protected under primary single-phasing conditions.

3. Thermostats: HH07AT170, 172

Subbase: HH93AZ176, 177, 178 and 179

4. Set heat anticipator at .14 amp for first stage and .14 amp for second stage.

5. Use copper conductors only.

6. TRAN is wired for 230 v unit. If unit is to be run with 208 v power supply, disconnect BLK wire from 230 v tap and

connect to 208 v tap (RED). Insulate end of 230 v tap.

57

TYPICAL WIRING SCHEMATIC (cont)

581B090-150 Typical Wiring Schematic

LEGEND

AHA —Adjustable Heat Anticipator

BR —Burner Relay

C—Contactor, Compressor

CAP —Capacitor

CB —Circuit Breaker

CC —Cooling Compensator

CLO —Compressor Lockout

COMP —Compressor Motor

CONN —Connection

CR —Control Relay

D—Diode

EC —Enthalpy Control

ECON —Economizer

EPS —Emergency Power Supply

EQUIP —Equipment

ER —Economizer Relay

FPT —Freeze-Protection Thermostat

FS —Flame Sensor

FSS —Filter Status Switch

FU —Fuse

GND —Ground

GVR —Gas Valve Relay

HPS —High-Pressure Switch

HS —Hall Effect Sensor

HV —High Voltage

I—Ignitor

IDM —Induced-Draft Motor

IFC —Indoor (Evaporator) Fan

Contactor

IFM —Indoor (Evaporator) Fan Motor

IFMOVL —Indoor-Fan Motor Overload

Switch

IGC —Integrated Gas Unit Controller

LPS —Low-Pressure/Loss-of-Charge

Switch

LS —Limit Switch

MGV —Main Gas Valve

MTR —Motor

NC —Normally Closed

NO —Normally Open

OAT —Outdoor-Air Thermostat

OFC —Outdoor (Condenser) Fan

Contactor

OFM —Outdoor (Condenser) Fan Motor

P—Plug

PL —Plug Assembly

QT —Quadruple Terminal

R—Relay

RS —Rollout Switch

SAT —Supply-Air Thermostat

SEN —Sensor

SW1 —Switch Fully Open

SW2 —Switch Fully Closed

SW3 —Switch Minimum Vent Position

SW4 —Switch Maximum Vent Position

TC —Thermostat-Cooling

TH —Thermostat-Heating

TRAN —Transformer

Field Splice

Terminal (Marked)

Terminal (Unmarked)

Terminal Block

Splice

Splice (Marked)

Factory Wiring

Field Control Wiring

Field Power Wiring

Accessory or Optional Wiring

To indicate common potential

only. Not to represent wiring.

CIRCUIT

BREAKER VOLTS MFG. PT. NO.

MUST

TRIP

AMPS

CB 24 V Potter & Brumfield 3.2

W2BX-1024-3.2

CB1

(150 Std) 208/230-3-60 Heinemann Airpax 17.3

CF3-2204-15 209-3-2599-485

58

CONTROLS

OPERATING SEQUENCE FOR 581B036-072 UNITS

Cooling, Units Without Economizer — When thermostat calls

for cooling, terminals G and Y1 and the compressor contactor

(C) are energized. The indoor (evaporator) fan motor (IFM),

compressor, and outdoor (condenser) fan motor (OFM) start.

The OFM runs continuously while the unit is in cooling. When

the thermostat is satisfied, C is deenergized and the compres-

sor and OFM shut off. After a 30-second delay, the IFM shuts

off. If the thermostat fan selector switch is in the ON position,

the evaporator motor will run continuously.

Cooling, Units With Durablade Economizer — When the

outdoor-air temperature is above the outdoor-air temperature

(OAT) setting and the room thermostat calls for cooling, the

compressor contactor is energized to start the compressor and

outdoor (condenser) fan motor (OFM). The indoor (evaporator)

fan motor (IFM) is energized and the economizer damper

moves to the minimum position. After the thermostat is satis-

fied, the damper moves to the fully closed position when IFM is

deenergized.

When the outdoor-air temperature is below the OAT setting and

the thermostat calls for Y1 and G, the economizer damper

moves to the minimum position when the evaporator fan starts.

The first stage of cooling is provided by the economizer. If the

supply-air temperature is above 57 F, a switch on the supply-air

thermostat is closed between the T2 terminal and the 24 vac

terminal. This causes the damper to continue to modulate open

until the supply-air temperature falls below 55 F or the damper

reaches the fully open position.

When the supply-air temperature is between 55 F and 52 F, the

supply-air thermostat has open switches between the T2 and

24 vac terminals and between the T1 and 24 vac terminals. This

causes the economizer damper to remain in an intermediate

open position.

If the supply-air temperature falls below 52 F, a switch on the

supply-air thermostat is closed between the T1 terminal and the

24 vac terminal. This causes the damper to modulate closed

until the supply-air temperature rises above 55 F or the damper

reaches the minimum position.

When the supply-air temperature is between 55 F and 57 F, the

supply-air thermostat has open switches between the T2 and

24 vac terminals. This causes the economizer damper to

remain in an intermediate open position.

If the outdoor air alone cannot satisfy the cooling requirements

of the conditioned space, economizer cooling is integrated with

mechanical cooling, providing second stage cooling. The com-

pressor and condenser fan will be energized and the position of

the economizer damper will be determined by the supply-air

temperature.

When the second stage of cooling is satisfied, the compressor

and condenser-fan motor will be deenergized. The damper

position will be determined by the supply-air temperature.

When the first stage of cooling is satisfied, the IFM shuts off

after a 30-second delay. The damper then moves to fully closed

position.

Cooling, Units With EconoMi$er — When the outdoor-air

temperature (OAT) is above the ECON SP set point and the

room thermostat calls for Stage 1 cooling (R to G +Y1), the

indoor-fan motor (IFM) is energized and the EconoMi$er

damper modulates to minimum position. The compressor con-

tactor is energized starting the compressor and outdoor-fan

motor (OFM). After the thermostat is satisfied, the damper mod-

ulates to the fully closed position when the IFM is deenergized.

When the OAT is below the ECON SP set point and the room

thermostat calls for Stage 1 cooling (R to G + Y1), the

EconoMi$er modulates to the minimum position when the IFM

is energized. The EconoMi$er provides Stage 1 of cooling by

modulating the return and outdoor air dampers to maintain a

55 F supply air set point. If the supply-air temperature (SAT) is

greater than 57 F, the EconoMi$er modulates open, allowing a

greater amount of outdoor air to enter the unit. If the SAT drops

below 53 F, the outdoor-air damper modules closed to reduce

the amount of outdoor air. When the SAT is between 53 and

57 F, the EconoMi$er maintains its position.

Heating, Units Without Economizer — When the thermostat

calls for heating, terminal W1 is energized. The induced-draft

motor is energized and the burner ignition sequence begins.

The indoor (evaporator) fan motor (IFM) is energized 45 sec-

onds after a flame is ignited. On units equipped for two stages

of heat, when additional heat is needed, W2 is energized and

the high-fire solenoid on the main gas valve (MGV) is ener-

gized. When the thermostat is satisfied and W1 is deenergized,

the IFM stops after a 45-second time-off delay.

Heating, Units With Economizer or Two-Position Damper —

When the thermostat calls for heating, terminal W1 is ener-

gized. The induced-draft motor is energized and the burner igni-

tion sequence begins. The indoor (evaporator) fan motor (IFM)

is energized 45 seconds after a flame is ignited and the damper

moves to the minimum position. If the accessory two-position

damper is used, the outdoor-air damper opens to the minimum

position whenever the evaporator fan runs. On units equipped

for two stages of heat, when additional heat is needed, W2 is

energized and the high-fire solenoid on the main gas valve

(MGV) is energized. When the thermostat is satisfied and W1 is

deenergized, the IFM stops after a 45-second time-off delay.

The economizer damper then moves to the fully closed position.

When using continuous fan, the damper will remain in the mini-

mum position.

OPERATING SEQUENCE FOR 581B090-150 UNITS

Cooling, Units Without Economizer — When thermostat calls

for cooling, terminals G and Y1 are energized. The indoor

(evaporator) fan contactor (IFC) and compressor contactor no. 1

(C1) are energized, and evaporator-fan motor, compressor

no. 1, and condenser fans start. The condenser-fan motors run

continuously while unit is cooling. For units with 2 stages of

cooling, if the thermostat calls for a second stage of cooling by

energizing Y2, compressor contactor no. 2 (C2) is energized

and compressor no. 2 starts.

When the thermostat is satisfied, C1 and C2 are deenergized

and the compressors and outdoor (condenser) fan motors

(OFM) shut off. After a 30-second delay, the indoor (evaporator)

fan motor (IFM) shuts off. If the thermostat fan selector switch is

in the ON position, the evaporator motors will run continuously.

Cooling, Units With Durablade Economizer — When the

outdoor-air temperature (OAT) is above the OAT setting and the

room thermostat calls for cooling, the compressor contactor

no. 1 is energized to start compressor no. 1 and outdoor (con-

denser) fan motors (OFM). The indoor (evaporator) fan motor

(IFM) is energized and the economizer damper moves to the

minimum position. Upon a further call for cooling, compressor

contactor no. 2 will be energized, starting compressor no. 2.

After the thermostat is satisfied and the IFM is deenergized, the

damper moves to the fully closed position.

When the outdoor-air temperature is below the OAT setting and

the thermostat calls for Y1 and G, the economizer damper

moves to the minimum position when the evaporator fan starts.

The first stage of cooling is provided by the economizer. If the

supply-air temperature is above 57 F, a switch on the supply-air

thermostat is closed between the T2 terminal and the 24 vac

terminal. This causes the damper to continue to modulate open

until the supply-air temperature falls below 55 F or the damper

reaches the fully open position.

When the supply-air temperature is between 55 F and 52 F, the

supply-air thermostat has open switches between the T2 and

24 vac terminals and between the T1 and 24 vac terminals. This

causes the economizer damper to remain in an intermediate

open position.

59

CONTROLS (cont)

If the supply-air temperature falls below 52 F, a switch on the

supply-air thermostat is closed between the T1 terminal and the

24 vac terminal. This causes the damper to modulate closed

until the supply-air temperature rises above 55 F or the damper

reaches the minimum position.

When the supply-air temperature is between 55 F and 57 F, the

supply-air thermostat has open switches between the T2 and

24 vac terminals. This causes the economizer damper to

remain in an intermediate open position.

If the outdoor air alone cannot satisfy the cooling requirements

of the conditioned space, economizer cooling is integrated with

mechanical cooling, providing second stage cooling. Compres-

sor no. 1 and condenser fan will be energized, and the position

of the economizer damper will be determined by the supply-air

temperature. Compressor no. 2 is locked out.

When the second stage of cooling is satisfied, the compressor

and condenser fan motors will be deenergized. The damper

position will be determined by the supply-air temperature.

When the first stage of cooling is satisfied, the IFM shuts off

after a 30-second delay. The damper then moves to fully closed

position.

Cooling, Units With EconoMi$er — When the outdoor-air

temperature (OAT) is above the ECON SP set point and the

room thermostat calls for Stage 1 cooling (R to G +Y1), the

indoor-fan motor (IFM) is energized and the EconoMi$er

damper modulates to minimum position. The compressor con-

tactor is energized starting the compressor and outdoor-fan

motor (OFM). After the thermostat is satisfied, the damper mod-

ulates to the fully closed position when the IFM is deenergized.

When the OAT is below the ECON SP set point and the room

thermostat calls for Stage 1 cooling (R to G + Y1), the

EconoMi$er modulates to the minimum position when the IFM

is energized. The EconoMi$er provides Stage 1 of cooling by

modulating the return and outdoor air dampers to maintain a

55 F supply air set point. If the supply-air temperature (SAT) is

greater than 57 F, the EconoMi$er modulates open, allowing a

greater amount of outdoor air to enter the unit. If the SAT drops

below 53 F, the outdoor-air damper modules closed to reduce

the amount of outdoor air. When the SAT is between 53 and

57 F, the EconoMi$er maintains its position.

Heating, Units Without Economizer — When the thermostat

calls for heating, terminal W1 is energized. In order to prevent

thermostat short-cycling, the unit is locked into the Heating

mode for at least 1 minute when W1 is energized. The induced-

draft motor (IDM) is then energized and the burner ignition

sequence begins. The indoor (evaporator) fan motor (IFM) is

energized 45 seconds after a flame is ignited. When additional

heat is needed, W2 is energized and the high-fire solenoid on

the main gas valve (MGV) is energized. When the thermostat is

satisfied and W1 and W2 are deenergized, the IFM stops after a

45-second time-off delay.

Heating, Units With Economizer or Two-Position Damper —

When the thermostat calls for heating, terminal W1 is ener-

gized. In order to prevent thermostat short-cycling, the unit is

locked into the Heating mode for at least 1 minute when W1 is

energized. The induced-draft motor is then energized and the

burner ignition sequence begins. The indoor (evaporator) fan

motor (IFM) is energized 45 seconds after a flame is ignited and

the damper moves to the minimum position. If the accessory

two-position damper is used, the outdoor-air damper opens to

the minimum position whenever the evaporator fan runs. When

additional heat is needed, W2 is energized and the high-fire

solenoid on the main gas valve (MGV) is energized. When the

thermostat is satisfied and W1 and W2 are deenergized, the

IFM stops after a 45-second time-off delay. The economizer

damper then moves to the fully closed position. When using

continuous fan, the damper will remain in the minimum position.

OPERATING SEQUENCE FOR 581B036-150 SIZE UNITS

Units With Perfect Humidity™ Dehumidification Package —

When thermostat calls for cooling, terminals G and Y1 is ener-

gized. The indoor (evaporator) fan motor (IFM), compressor (C),

and outdoor (condenser) fan motor (OFM) start. The OFM runs

continuously while the unit is in cooling. As shipped from the

factory, Perfect Humidity dehumidification circuit is always ener-

gized. If Perfect Humidity circuit modulation is desired, a field-

installed, wall-mounted LC Thermidistat or humidistat are

required.

If the Perfect Humidity humidistat is installed and calls for the

Perfect Humidity subcooler coil to operate, the humidistat inter-

nal switch closes. This energizes and closes the liquid line sole-

noid valve coil (LLSV) of the Perfect Humidity circuit, forcing the

hot liquid refrigerant of the liquid line to enter the subcooler coil.

As the hot liquid passes through the subcooler coil, it is

exposed to the cold supply airflow coming off from the evapora-

tor coil and the liquid is further cooled to a temperature

approaching the evaporator coil leaving-air temperature. The

state of the refrigerant leaving the subcooler coil is a highly sub-

cooled liquid refrigerant. The liquid then enters a thermostatic

expansion valve (TXV) where the liquid is dropped to a lower

pressure. The TXV does not have a pressure drop great

enough to change the liquid to a 2-phase fluid. The TXV can

throttle the pressure drop of the liquid refrigerant and maintain

proper conditions at the compressor suction valve over a wide

range of operating conditions. The liquid then enters a second

fixed restrictor expansion device for a second pressure drop to

a 2-phase fluid. The liquid proceeds to the evaporator coil at a

temperature lower than normal cooling operation. This lower

temperature is what increases the latent capacity of the rooftop.

The 2-phase refrigerant passes through the evaporator and is

changed into a vapor. The air passing over the evaporator coil

will become colder than during normal operation as a result of

the colder refrigerant temperatures. However, as it passes over

the subcooler coil, the air will be warmed slightly.

As the refrigerant leaves the evaporator, the refrigerant passes

a low-pressure switch in the suction line. This low-pressure

switch will deactivate the Perfect Humidity package when the

suction pressure reaches 60 psig. The low-pressure switch is

an added safety device to protect against evaporator coil

freeze-up. The low-pressure switch will only deactivate and

open the liquid line solenoid valve in the Perfect Humidity circuit.

The compressors will continue to run as long as there is a call

for cooling, regardless of the position of the low-pressure

switch. The solenoid valve and the Perfect Humidity package

will be re-activated only when the call for cooling has been sat-

isfied, the low-pressure switch has closed, and a new call for

cooling exists. The crankcase heaters on the scroll compressor

provide additional protection for the compressor due to the

additional refrigerant charge in the subcooler.

When the humidistat is satisfied, the humidistat internal switch

opens cutting power to and opening the LLSV. The refrigerant is

routed back through the evaporator and the subcooler coil is

removed from the refrigerant loop.

When the thermostat is satisfied, C1 is deenergized and the

compressor and OFM shut off. After a 30-second delay, the IFM

shuts off. If the thermostat fan selector switch is in the ON posi-

tion, the IFM will run continuously.

60

GUIDE SPECIFICATIONS

PACKAGED ROOFTOP COOLING UNIT WITH GAS HEAT —

CONSTANT VOLUME APPLICATION

HVAC GUIDE SPECIFICATIONS

SIZE RANGE: 3 TO 121/2 TONS, NOMINAL COOLING

72,000 TO 250,000 BTUH,

NOMINAL INPUT HEATING

BRYANT MODEL NUMBER: 581B

PART 1 — GENERAL

1.01 SYSTEM DESCRIPTION

Outdoor rooftop- or slab-mounted, electrically controlled

heating and cooling utilizing a scroll compressor for cool-

ing duty and gas combustion for heating duty. Unit shall

discharge supply air vertically or horizontally as shown on

contract drawings.

1.02 QUALITY ASSURANCE

A. Unit shall be rated in accordance with ARI Standards 210/

240 or 360 and 270.

B. Unit shall be designed to conform to ASHRAE 15, latest

revision, and in accordance with UL 1995.

C. Unit shall be UL tested and certified in accordance with

ANSI Z21.47 Standard and UL listed and certified under

Canadian Standards as a total package for safety

requirements.

D. Roof curb shall be designed to conform to NRCA

Standards.

E. Insulation and adhesive shall meet NFPA 90A require-

ments for flame spread and smoke generation.

F. Unit casing shall be capable of exceeding Federal Test

Method Standard No. 141 (Method 6061) 500-hour Salt

Spray Test.

G. Each 581B unit is subjected to completely automated run

testing on the assembly line. Each unit contains a factory-

supplied printout indicating tested pressures, amperages,

data, and inspectors; providing certification of the unit

status at the time of manufacture.

1.03 DELIVERY, STORAGE, AND HANDLING

Unit(s) shall be stored and handled per manufacturer’s

recommendations.

PART 2 — PRODUCTS

2.01 EQUIPMENT (STANDARD)

A. General:

Factory-assembled, single-piece heating and cooling unit.

Contained within the unit enclosure shall be all factory

wiring, piping, controls, refrigerant charge (R-22), and

special features required prior to field start-up.

B. Unit Cabinet:

1. Unit cabinet shall be constructed of galvanized steel,

bonderized and coated with a baked enamel finish

on all externally exposed surfaces, and have primer-

coated interior surfaces on all panels.

2. Evaporator-fan cabinet interior shall be insulated with

a minimum 1/2-in. thick flexible fiberglass insulation

coated on the air side. Aluminum foil-faced fiberglass

insulation shall be used in the heating compartment.

3. Cabinet panels shall be easily removable for

servicing.

4. Holes shall be provided in the base rails for rigging

shackles to facilitate overhead rigging, and forklift

slots shall be provided to facilitate maneuvering.

5. Unit shall have a factory-installed, sloped conden-

sate drain pan made of a non-corrosive material, pro-

viding a minimum 3/4-in. connection with both vertical

and horizontal drains and shall comply with

ASHRAE 62.

6. Unit shall have factory-installed filter access panel to

provide filter access with tool-less removal.

7. Unit shall have standard thru-the-bottom power con-

nection capability.

C. Fans:

1. Indoor blower (evaporator fan) shall be of the

belt-driven, double inlet, forward-curved centrifugal

type. Belt drive shall include an adjustable-pitch

motor pulley.

2. Indoor blower (evaporator fan) shall be made from

steel with a corrosion-resistant finish and shall be

dynamically balanced.

3. Bearings shall be of the sealed, permanently lubri-

cated, ball-bearing type for longer life and lower

maintenance.

4. Condenser fan shall be of the direct-driven propeller

type and shall discharge air vertically upward.

5. Condenser fan shall have aluminum blades riveted to

corrosion-resistant steel spiders and shall be dynam-

ically balanced.

6. Condenser-fan motor shall be totally enclosed.

7. Induced draft blower shall be of the direct-driven, sin-

gle inlet, forward curved, centrifugal type, shall be

made from steel with a corrosion-resistant finish, and

shall be dynamically balanced.

D. Compressor(s):

1. Fully hermetic scroll type, internally protected.

2. Factory rubber-shock mounted and internally spring

mounted for vibration isolation.

3. On independent circuits (sizes 090-150).

E. Coils:

1. Evaporator and condenser coils shall have aluminum

plate fins mechanically bonded to enhanced copper

tubes with all joints brazed.

2. Tube sheet openings shall be belled to prevent tube

wear.

3. Evaporator coil shall be of the face-split design.

F. Heating Section:

1. Induced draft combustion type with energy saving

direct spark ignition system, redundant main gas

valve.

2. The heat exchanger shall be of the tubular section

type constructed of a minimum of 20 gage steel

coated with a nominal 1.2 mil aluminum-silicone alloy

for corrosion resistance.

3. Burners shall be of the in-shot type constructed of

aluminum coated steel.

4. All gas piping shall enter the unit cabinet at a single

location.

5. The Integrated Gas Control (IGC) board shall provide

timed control of evaporator fan functioning and

burner ignition. An LED (light-emitting diode) shall

provide diagnostic information. The LED shall be vis-

ible without removing the control box access panel.

6. IGC board contains anti-cycle protection for gas heat

operation (after 4 continuous cycles on high temper-

ature limit switch and one cycle on the flame rollout

switch).

G. Refrigerant Components:

Refrigerant circuit components shall include:

1. Fixed-orifice type feed system.

2. Refrigerant strainer.

3. Service gage connections on suction, discharge, and

liquid lines.

4. Filter drier.

5. Ability to route gage hoses through unit top cover

(unit sizes 036-072 only).

H. Filter Section:

1. Standard filter section shall consist of factory-

installed low-velocity, throwaway 2-in. thick fiberglass

filters of commercially available sizes.

2. Filter face velocity shall not exceed 300 fpm at nomi-

nal airflows.

3. Filter section shall use only one size filter.

4. Filters shall be accessible through an access panel

with ‘‘no-tool’’ removal.

61

GUIDE SPECIFICATIONS (cont)

I. Controls and Safeties:

1. Unit Controls:

Unit shall be complete with self-contained low-

voltage control circuit protected by a fuse on the 24-v

transformer side.

2. Safeties:

a. Unit shall incorporate a solid-state compressor

protector which provides anti-cycle reset capabil-

ity at the space thermostat, should any of the

following standard safety devices trip and shut off

compressor.

1) Compressor overtemperature, overcurrent.

2) Loss-of-charge/low-pressure switch.

3) Freeze-protection thermostat, evaporator coil.

4) High-pressure switch.

The lockout protection shall be easily discon-

nected at the control board, if necessary.

b. Heating section shall be provided with the follow-

ing minimum protections:

1) High-temperature limit switches.

2) Induced draft motor speed sensor.

3) Flame rollout switch.

4) Flame proving controls

J. Operating Characteristics:

1. Unit shall be capable of starting and running at 125 F

ambient outdoor temperature, meeting maximum

load criteria of ARI Standard 210/240 or 360 at ±10%

voltage.

2. Compressor with standard controls shall be

capable of operation down to 25 F ambient outdoor

temperature.

K. Electrical Requirements:

All unit power wiring shall enter unit cabinet at a single

factory-predrilled location.

L. Motors:

1. Compressor motors shall be cooled by refrigerant

passing through motor windings and shall have line

break thermal and current overload protection.

2. Indoor blower (evaporator-fan) motor shall have per-

manently lubricated bearings and inherent

automatic-reset thermal overload protection.

3. Totally enclosed condenser-fan motor shall have

permanently lubricated bearings and inherent

automatic-reset thermal overload protection.

4. Induced-draft motor shall have permanently lubri-

cated, sealed bearings and inherent automatic reset

thermal overload protection.

M. Special Features:

Certain features are not applicable when the features

designated by * are specified. For assistance in amending

the specifications, contact your local sales office.

1. Roof Curbs:

a. Formed galvanized steel with wood nailer strip

and capable of supporting entire unit weight.

b. Allows for installing and securing ductwork to curb

prior to mounting unit on the curb.

*2. Integrated Economizers:

a. Integrated integral-modulating type capable of

simultaneous economizer and compressor

operation.

b. Includes all hardware and controls to provide

cooling with outdoor air.

c. Equipped with low-leakage dampers not to

exceed 3% leakage, at 1 in. wg pressure differen-

tial (Durablade economizer).

d. Capable of introducing up to 100% outdoor air in

both minimum and fully open positions.

e. Equipped with a gravity relief sliding plate damper

(Durablade economizer). Damper shall close

upon unit shutoff.

f. EconoMi$er shall be equipped with a barometric

relief damper with up to 100% of return air (036-

072) or 90% of return air (090-150) relief. The

Durablade economizer is equipped with 30% of

return-air relief (036-150).

g. Designed to close damper during loss-of-power

situations with emergency power supply (Dura-

blade economizer) or spring return built into

motor (EconoMi$er).

h. Dry bulb outdoor-air thermostat protection shall

be provided as standard.

i. Durablade economizer is a guillotine-style

damper, and the EconoMi$er is a parallel blade

design.

3. 50% Manual Outdoor-Air Damper:

Manual damper package shall consist of damper,

birdscreen, and rainhood which can be preset

to admit up to 50% outdoor air for year-round

ventilation.

4. 25% Manual Outdoor-Air Damper:

Manual damper package shall consist of damper,

birdscreen, and rainhood which can be preset

to admit up to 25% outdoor air for year-round

ventilation.

5. 100% Two-Position Damper:

a. Two-position damper package shall include single

blade damper and motor. Admits up to 100% out-

door air.

b. Damper shall close upon indoor (evaporator) fan

shutoff.

c. Designed to close damper during loss of power

situations.

d. Equipped with 15% barometric relief damper.

6. 25% Two-Position Damper:

a. Two-position damper package shall include single

blade damper and motor. Admits up to 25% out-

door air.

b. Damper shall close upon indoor (evaporator) fan

shutoff.

*7. Solid-State Enthalpy Control:

a. For use with variable sliding economizer package

only.

b. Capable of sensing outdoor-air enthalpy content

(temperature and humidity) and controlling econ-

omizer cut-in point to have minimum heat content

air passing over the evaporator coil for most effi-

cient system operation.

*8. Differential Enthalpy Sensor:

a. For use with economizer only.

b. Capable of comparing enthalpy content (tempera-

ture and humidity) of outdoor and indoor air and

controlling economizer cut-in point at the most

economical level.

9. Outdoor-Air Enthalpy Sensor:

The outdoor-air enthalpy sensor shall be used with

the EconoMi$er device to provide single enthalpy

control. When used in conjunction with a return-air

enthalpy sensor, the EconoMi$er device will provide

differential enthalpy control. The sensor allows the

EconoMi$er controller to determine if outside air is

suitable for free cooling.

10. Return-Air Enthalpy Sensor:

The return-air enthalpy sensor shall be used with the

EconoMi$er device. When used in conjunction with

an outdoor-air enthalpy sensor, the EconoMi$er

device will provide differential enthalpy control.

62

GUIDE SPECIFICATIONS (cont)

11. Return-Air Temperature Sensor:

The return-air temperature sensor shall be used with

the EconoMi$er device. When used in conjunction

with an outdoor-air temperature sensor, the

EconoMi$er device will provide differential tempera-

ture control.

12. Indoor-Air Quality (CO2) Sensor:

Shall have the ability to provide demand ventilation

indoor-air quality (IAQ) control through the

EconoMi$er with an IAQ sensor.

The IAQ sensor shall be available in duct mount, wall

mount and wall mount with LED display. The set

point shall have adjustment capability.

*13. Low Ambient Control Packages:

Each package consists of solid-state control and

condenser-coil temperature sensor to maintain con-

densing temperature between 90 F and 110 F at out-

door ambient temperatures down to –20 F by

condenser-fan speed modulation or condenser-fan

cycling.

*14. Thermostat and Subbase:

Provides staged cooling and heating automatic (or

manual) changeover, fan control, and indicator light.

15. Thru-The-Bottom Service Connection:

Kit shall provide connectors to permit electrical con-

nections to be brought to the unit through the

basepan.

16. Condenser Coil Hail Guard Assembly:

Hail guard shall protect against damage from hail

and flying debris.

17. Condenser Coil Guard Grille:

The grille protects the condenser coil from damage

by large objects without increasing unit clearances.

18. Compressor Cycle Delay:

Unit shall be prevented from restarting for a mini-

mum of 5 min. after shutdown.

19. Fan/Filter Status Switch:

Provides status of evaporator fan (ON/OFF) or

indoor-air filter (CLEAN/DIRTY). Status shall be dis-

played over communication bus when used with

direct digital controls or with an indicator light at the

thermostat.

20. Unit-Mounted, Non-Fused Disconnect Switch:

Shall be factory-installed, internally-mounted, NEC

and UL approved non-fused switch shall provide unit

power shutoff. Shall be accessible from outside the

unit and shall provide power off lockout capability.

21. Convenience Outlet:

Shall be factory-installed and internally-mounted

with easily accessible 115-v female receptacle. Shall

include 15 amp GFI receptacle with independent

fuse protection. Voltage required to operate con-

venience outlet shall be provided by a factory-

installed step-down transformer. Shall be accessible

from outside the unit.

22. High-Static Motor and Drive:

High-static motor and drive shall be factory-installed

to provide additional performance range.

23. EconoMi$er and Power Exhaust:

Package shall provide control of internal building

pressure. The system shall exhaust up to 100% of

return air.

24. Power Exhaust for Accessory EconoMi$er:

Two two-stage power exhausts shall be used in con-

junction with EconoMi$er to provide the system with

the capability to exhaust up to 100% of return air.

The power exhaust is a field-installed accessory for

vertical and horizontal applications.

25. Flue Hood Protector Assembly:

Provides protection from the hot sides of the gas flue

hood.

26. Liquid Propane Kit:

Package shall contain all the necessary hardware

and instructions to convert a standard natural gas

unit for use with liquefied propane.

27. NOx Reduction Unit:

Unit shall have reduced nitrous oxide (NOx) emis-

sions to meet the California Air Quality Management

NOx requirement of 40 nanograms/joule or less on

036-060 sizes.

28. Flue Discharge Deflector:

Package shall contain single-piece deflector and

hardware to exhaust the flue discharge up and away

from unit. The flue discharge deflector shall allow

minimum flue side clearances to combustibles to be

reduced to 18 inches.

29. Dehumidification Package:

The dehumidification package is a factory-installed

option that provides increased dehumidification by

further subcooling the hot liquid refrigerant leaving

the condenser coil. The package consists of a sub-

cooling coil located on the leaving-air side of the

evaporator coil. The location of this coil in the indoor

airstream greatly enhances the latent capacity of the

units.

The package shall be equipped with crankcase

heater(s), low pressure switch(es), and thermostatic

expansion valve(s) (TXV). Low pressure switch(es)

prevents evaporator coil freeze up and TXV(s)

assure a positive superheat condition. If the opera-

tion of the subcooling coil is controlled by a field-

installed, wall-mounted humidistat or LC Thermidis-

tat, the dehumidification circuit will then operate only

when needed. Optional field connections for the

humidistat are made in the low voltage compartment

of the unit control box.

30. Light Commercial Thermidistat:

Field-installed, wall mounted thermidistat is used to

control temperature and activation of Perfect

Humidity™ package. The thermidistat can be set for

humidity settings from 50% to 90% relative humidity.

31. Electronic Programmable Thermostat:

Capable of using deluxe full-featured electronic ther-

mostat. Shall use built-in compressor cycle delay

control for both heating and cooling duty.

32. Humidistat:

Field-installed, wall-mounted humidistat is used to

control activation of the dehumidification package.

The humidistat can be set for humidity levels

between 20% and 80% relative humidity.

33. Hinged Panel Option:

Hinged panel option provides hinged access panels

for the filter, compressor, evaporator fan, and control

box areas. Filter hinged panels permit tool-less entry

for changing filters. Each hinged panel is perma-

nently attached to the rooftop unit.

Copyright 2000 Bryant Heating & Cooling Systems Printed in U.S.A. 12/00 Catalog No. 5258-103

SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE

UNIT MUST BE INSTALLED IN ACCORDANCE

WITH INSTALLATION INSTRUCTIONS