Nordyne M1BB086 User Manual FURNACE Manuals And Guides 1012604L

User Manual: Nordyne M1BB086 M1BB086 NORDYNE FURNACE - Manuals and Guides View the owners manual for your NORDYNE FURNACE #M1BB086. Home:Heating & Cooling Parts:Nordyne Parts:Nordyne FURNACE Manual

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Downflow, Direct Vent (Sealed Combustion)

Forced Air Gas & Oil Furnaces

Series M1 B, lVllG, M1M & M5S For installation in:

, Manufactured Homes

, Recreational Vehicles, Park Models, &

Manufactured Buildings

, Modular Homes/Buildings

ATTENTION INSTALLERS:

It is your responsibility to know this product

better than your customer. This includes

being able to install the product according

to strict safety guidelines and instructing the

customer on howtooperate and maintain the

equipment for the life of the product. Safety

should always be the deciding factor when

installing this product and using common

sense plays an important role as well. Pay

attention to all safety warnings and any other

special notes highlighted in the manual.

Improper installation of the furnace or failure

to follow safety warnings could result in

serious injury, death, or property damage.

These instructions are primarily intended

to assist qualified individuals experienced

in the proper installation of this appliance.

Some local codes require licensed

installation/service personnel for this type

of equipment. Please read all instructions

carefully before starting the installation.

Return these instructions to the customer's

package for future reference.

WHATTO DO IFYOU SMELL GAS FIRE OR EXPLOSION HAZARD

• Do not try to light any appliance.

,, Do nottouch anyelectrical switch;

do not use any phone in your

building.

• Leave the building immediately.

•Immediately call your gas supplier

from a neighbors phone. Follow

the gas suppliers instructions.

•If you cannot reach your gas

supplier, call the fire department

,, Failure to follow safety warnings

exactly could result in serious

injury or property damage.

• Installation and service must

be performed by a qualified

installer, service agency or the

gas supplier.

• Do not store or use gasoline

or other flammable vapors and

liquids in the vicinity of this or

any other appliance.

SAFETY iNFORMATiON .............................. 3

REQUIREMENTS & CODES ........................ 3

GENERAL INFORMATION ........................... 5

Warranty information ................................ 5

Minimum Clearances ............................... 5

Applications ............................................. 6

Unit Location ............................................ 6

CIRCULATING AiR REQUIREMENTS ......... 7

Return Air Connections ........................... 7

Supply Air Connections ............................ 7

FURNACE iNSTALLATION .......................... 8

General information .................................. 8

Requirements & Codes ............................ 8

Locating & Cutting Duct Openings .......... 8

Standard Duct Connector Installation ....... 9

Alternate Attachment Method ............... 10

Round Duct Connector Installation .......... 10

Installing the Furnace .............................. 10

ROOF JACK INSTALLATION ...................... 11

Roof Jack Selection ................................. 11

Application Notes ..................................... 11

Locating & Cutting Roof Openings .......... 12

Installing the Roof Jack ............................ 13

Installation of Transit-Mode Vent System. 13

Manufactured Home Factory ................. 13

ELECTRICAL iN FORMATION ..................... 14

Line Voltage Wiring .................................. 14

Connecting Power Supply Wires ........... 15

Low Voltage Wiring .................................. 15

Connecting Thermostat Wires ............... 15

Verifying Anticipator Setting .................. 15

Grounding ................................................ 15

FUEL SUPPLY AND PiPiNG ....................... 16

Oil Tank & Piping Istallation ..................... 17

One Line System .................................. 17

Two Line System ................................... 17

Fuel Line Hook Up .................................. 17

Leak Check ............................................. 18

Priming Honeywell R7184 ...................... 18

Priming Beckett 7505 .............................. 18

Fuel Oil Type ........................................... 18

Conversion to Propane Gas ................... 18

Atmospheric & Direct ignition .............. 18

High Altitude Conversion ........................ 19

Flue Gas Sampling ................................. 19

STARTUP & ADJUSTMENTS ..................... 20

Lighting instructions - Pilot Models .......... 20

How to Shut Off Gas - Pilot Models ...... 21

Operating Instructions - Direct Ignition ...21

How to Shut Off Gas - Direct Ignition ...22

Operating instructions -Oil Gun .............. 22

Operating Instructions - Gas Gun ............ 22

How to Shut Off Gas- Gas Gun ........... 22

Burner Adjustments ................................. 22

Gas Pressure ....................................... 22

Pilot Flame ........................................... 22

Combustion Air ........................................ 23

Gas Gun ............................................... 23

Oil Gun ................................................. 23

Electrode Setting - Oil Gun ...................... 23

Switching Honeywell (R7184) Ignition from

interrupted to intermittent ........................ 23

OPERATING SEQUENCE ........................... 24

Standing Pilot .......................................... 24

Standing Pilot w/Induced Draft Blower ...24

M1 Models - Direct Ignition ...................... 24

Oil Gun Models ........................................ 24

Gas Gun Models ...................................... 24

FURNACE CONTROLS &FUNCTIONS ..... 25

Furnace On-Off Switch ............................ 25

Limit Control ............................................ 25

Gas Valve ................................................. 25

Roll Out Switch -M1G ............................. 25

Oil Burner Primary Control ...................... 25

Summer Cooling -B,C,D Series .............. 25

TROUBLESHOOTING ................................. 26

Standing Pilot Models .............................. 26

Direct ignition Models .............................. 26

Oil Gun Models ........................................ 27

OPTIONAL ACCESSORIES ........................ 28

MAINTENANCE ........................................... 30

Homeowner information .......................... 30

installer information information .............. 30

FIGURE &TABLES ...................................... 31

Table 10 - Furnace Specifications ........ 31

Table 11 - Orifice Sizes - High AIt ......... 32

Table 12- Blower Speed Selection ....... 32

Gas Information ....................................... 33

Table 13 - Gas Flow Rates ................... 33

Table 14 - Gas Pipe Capacities ............ 33

Wiring Diagrams ...................................... 34

Fig. 39 - Gas Furnace - 056, 070 ......... 34

Fig. 41 - Standing Pilot - 077, 090 ........ 35

Fig. 42 - Gas Furn. w/ac 056, 070 ........ 36

Fig. 43 - Standing Pilot. w/ac 077, 090.37

Fig. 44 - Gas Only (M1M Models) ........ 38

Fig. 45 - Gas & Oil (M1B & M5S) ......... 39

Installation Checklist ................................ 40

SAFETY INFORMATION

Safety markings are used frequently throughout

this manual to designate a degree or level

of seriousness and should not be ignored.

WARNING indicates a potentially hazardous

situation that if not avoided, could result in

personal injury or death. CAUTION indicates

a potentially hazardous situation that if not

avoided, may result in minor or moderate injury

or property damage.

WARNING:

The safety information listed

below must be followed during the

installation, service, and operation

of this furnace. Failure to follow

safety recommendations could

result in possible damage to the

equipment, serious personal injury

or death.

o Use only with type of gas approved for this

furnace. Refer to the furnace rating plate.

Install this furnace in accordance to the

minimum clearances to combustible materials

listed in Table 1 (page 5).

Provide adequate combustion airtothe furnace

space as specified on page 23.

Combustion products must be discharged

outdoors. Connect this furnace to an approved

vent system, as specified on pages 13 -14.

Never test for gas leaks with an open flame.

Use a commercially available soap solution to

check all connections (page 18).

This furnace is designed to operate with a

maximum external pressure rise of 0.5 inches

of water column. Consult Table 8 (page 38),

and the rating plate for the proper circulating

air flow and temperature rise.

NOTE: It is important that the duct system be

designed to handle the desired flow rate and

external pressure rise. An improperly designed

duct system can result in nuisance shutdowns,

and comfort or noise issues.

This furnace may not be used for temporary

heating of buildings or structures under

construction.

When supply ducts carry air circulated by the

furnace to areas outside the space containing

the furnace, the return air shall also be handled

by duct(s) sealed to the furnace casing and

terminating outside the space containing the

furnace. See page 14.

WARNING:

Do not use this appliance if any

part has been submerged under

water. Immediately call a qualified

service technician to inspect the

appliance and to replace any part

of the control system and any gas

control that has been submerged

underwater.

Notice to installer

Installer is advised to carefully follow all

instructions and warnings in this manual to insure

maximum performance, safety, and operating

efficiency of these appliances. Improper

installation may create hazardous conditions,

and will void the appliance warranty.

PROPOSITION 65 WARNING"

This product contains chemicals

known to the state of California

to cause cancer, birth defects or

other reproductive harm.

REQUIREMENTS AND CODES

This furnace must be installed in accordance with

these instructions, ale applicable local building

codes and the current revision of the National

Fuel Gas Code (NFPA54/ANSI Z223.1) or the

Natural Gas and Propane Installation Code,

CAN/CGA B149.1.

CE generateur d'air chaud doit 6tre installe

conformement aux instructions du fabricant

et aux codes Iocaux. En Fabsence de code

local, respecter la norme ANSI Z223.,1,

institule National Fuel Gas Code ou les codes

d'installation CAN/GCA-B149.

The Commonwealth of Massachusetts requires

compliance with regulation 248 CMR 4.00 and

5.00 for installation of through-the-wall vented

gas appliances as follows:

1. For direct-vent appliances, mechanical-

vent heating appliances or domestic hot

water equipment, where the bottom of the

vent terminal and the air intake is installed

below four feet above grade the following

requirements must be satisfied:

a.) A carbonmonoxide(CO)detectorand

alarmshall be placedon each floor

levelwherethereare bedrooms.The

detectorshallcomplywith NFPA720

(2005Edition)andbe mountedin the

livingareaoutsidethebedroom(s).

b.) A (CO) detectorshall be locatedin

theroomthathousestheapplianceor

equipmentandshall:

.Be powered by the same electrical

circuit as the appliance or equipment.

Only one service switch shall power

the appliance and the (CO) detector;

.Have battery back-up power;

.Meet ANSl/UL 2034 Standards

and comply with NFPA 720 (2005

Edition); and Approved and listed

by a Nationally Recognized Testing

Laboratory as recognized under 527

CMR.

c.) A Product-approved vent terminal must

be used, and if applicable, a product-

approved air intake must be used.

Installation shall be in strict compliance

with the manufacturer's instructions. A

copy of the installation instructions shall

remain with the appliance or equipment

at the completion of the installation.

d.) A metal or plastic identification plate shall

be mounted at the exterior of the building,

4 feet directly above the location of vent

terminal. The plate shall be of sufficient

size, easily read from a distance of eight

feet away, and read "Gas Vent Directly

Below".

direct-vent appliances, mechanical

vent heating appliances or domestic hot

water equipment where the bottom of the

vent terminal and the air intake is installed

above four feet above grade the following

requirements must be satisfied:

a.) A (CO) detector and alarm shall be

placed on each floor level where there

are bedrooms.The detector shall comply

with NFPA 720 (2005 Edition) and be

mounted in the living area outside the

bedroom(s).

b.) The (CO) detector shall:

.Be located in the room that houses

the appliance or equipment;

.Be hard-wired, batterypowered or both.

.Shall comply with NFPA 720 (2005

Edition).

c.) A product-approved vent terminal must

be used, and if applicable, a product-

approved air intake must be used.

Installation shall be in strict compliance

with the manufacturer's instructions. A

2. For

copy of the installation instructions shall

remain with the appliance or equipment

at the completion of the installation.

The information listed below is for reference

purposes only and does not necessarily have

jurisdiction over local or state codes. Always

consult with local authorities before installing

any gas appliance.

Combustion and Ventilation Air

.US: National Fuel Gas Code (NFGC), Air for

Combustion and Ventilation

.CANADA: Natural Gas and Propane Instal-

lation Codes (NSCNGPIC), Venting Systems

and Air Supply for Appliances

Duct Systems

.US and CANADA: Air Conditioning Contractors

Association (ACCA) Manual D, Sheet Metal

and Air Conditioning Contractors National

Association (SMACNA), or American Society

of Heating, Refrigeration, and Air Conditioning

Engineers (ASHRAE) Fundamentals Hand-

book

Electrical Connections

" US: National Electrical Code (NEC) ANSI/

NFPA 7O

.CANADA: Canadian Electrical Code CSA

C22.1

Gas Piping and Gas Pipe Pressure Testing

.US: NFGC and National Plumbing Codes

.CANADA: NSCNGPIC

General installation

.US: Current edition of the NFGC and the

NFPA 90B. For copies, contact the National

Fire Protection Association Inc., Batterymarch

Park, Quincy, MA 02269; or American Gas

Association, 400 N. Capitol, N.W., Washington

DC 20001 or www.NFPA.org

.CANADA: NSCNGPIC. For a copy, contact

Standard Sales, CSA International, 178

Rexdale Boulevard, Etobicoke (Toronto),

Ontario, M9W 1R3 Canada

Safety

.US: (NFGC) NFPA54-1999/ANSI Z223.1 and

the Installation Standards, Warm Air Heating

and Air Conditioning SystemsANSI/NFPA 90B.

.Federal Manufactured Home Constructions

& Safety Standard (H.U.D. Title 24, Part

3280.707[a][2])

.The Standard for Manufactured Home

Installations (Manufactured Home Sites,

Communities, and Set-Ups) ANSI A225.1 and/

or CAN/CSA-2240 MH Series).

, AmericanNationalStandard(ANS1-119.2/

NFPA-501C)for all recreational vehicle

installations.

, CANADA:CAN/CGA-B149.1and .2-M00

National Standard of Canada. (NSCNGPIC)

GENERAL iNFORMATiON

Manufacturer Warranty - Owner's

Responsibilities

It is the sole responsibility of the homeowner to

make certain the gas furnace has been correctly

set up and converted to the proper fuel (L.R gas

or Natural gas) and adjusted to operate properly.

All gas furnaces are manufactured for Natural gas

and must be field converted when using L.R gas.

CAUTION:

• Do Not alter or modifythisfurnace

or any of its components.

• Never attempt to repair damaged

or inoperable components. This

may cause unsafe operation, ex=

plosion, fire and/or asphyxiation.

,, If furnace malfunctions or does

not operate properly, contact a

qualified service agency or gas

utility for assistance.

A warranty certificate with full details is included

with these instructions. However, NORDYNE

will not be responsible for any costs found

necessary to correct problems due to improper

setup, improper installation, furnace adjustments,

improper operating procedure on the part of the

user, etc. Carefully review these responsibilities

with your manufactured housing dealer, service

company or gas supplier. Some specific examples

of service calls which cannot be included in

warranty payments are:

Converting the furnace to use another type of

gas.

Repairing duct work in the home found to be

faulty.

Correcting wiring problems in the electrical

circuit supplying the furnace.

Resetting circuit breakers, blown fuses or other

switches.

Correcting problems due to improper gas

supply pressure to the furnace.

Providing instructional training on how to light

and operate the furnace.

Furnace problems caused by installation of an

air conditioner, heat pump or other air comfort

devices.

Adding a Roof Jack extension because of

unusual wind and/or snow conditions.

Revising installation of the furnace flue

assembly (Roof Jack).

Adjusting or calibrating of thermostat.

Any construction debris which falls into flue

system.

Minimum Clearances

This heating appliance must be installed with

clearances not less than the minimums listed

in Table 1. This furnace must be installed with

ample clearance for easy access to the air filter,

blower assembly, burner assembly, controls, and

vent connections. See Figures 1 -3 (page 6).

The dimensions of the room or alcove must be

able to accommodate the overall size of the

furnace and the installation clearances listed

in Table 1 and in Figure 4 (page 6).

Alcove installations: minimum 18" clearance

at front of furnace shall be provided for future

servicing. A removable access panel should

be installed between top of the furnace door

frame and the ceiling.

Closet installations must use a Iouvered door

having a minimum free area of 235 sq. in. when

located 6" from furnace or 390 sq. in. for 5 ton

ready M1/M5 furnaces. For special clearance

between 1"and 6", requirements are a Iouvered

door with a minimum of 250 sq. in. free area,

with the openings in the closet door in line with

the Iouvered openings in the furnace door. A

fully Iouvered closet door may be used. See

Circulating Air Requirements (page 7).

ALL MODELS CLOSET ALCOVE

Front 6" 18"

Back 0" 0"

Sides 0" 0"

Roof Jack 0" 0"

Top 6" 6"

Top and Sides of Duct 0" 0"

Bottom of Duct

B Cabinet 0" 0"

A Cabinet

(w/coil box) 0" 0"

A Cabinet 1/4" 1/4"

(w/o coil box)

Table 1. Minimum Clearances

Top Clearance

0" Side

Clearance

to Furnace

Cabinet

Removable access

panel should be

installed above

furnace door frame

to access roof jack

- -_.,, Nearest

i, Wall or

Partition

Figure 1. Alcove installation

Top Clearance

Provide min. 235

in. (1516 cm 2)

open free area in

front or side wall

, I In closet

door

i located

F at top,

0" Side center

Clearar or bottom

CLOSET DOOR

Figure 2. Closet Installation

------_ Provide min. 250

6" (152 mm) sq. in. (1613 cm 2)

Top Clearance -_._/ (( open free area in

__--_ /i' front or side wall

/ - !r<_ or

in closet

_ door

_t a fully

, I Iouvered

0" Side door may

Clearance be used

to Furnace

Cabinet

:iOSET DOOR

Figure 3. Special 1" Clearance

Part

No.

903773

903413

903890

Blower /Motor

Assembly

Blower Motor

Wheel (Hp)

10x 8 1/4

11 x8 1/2

11 x 8 3/4

NC Capacity

(Tons)

2, 21/2& 3

2, 21/2,3 & 4

2, 21/2,3, 4&._5

Table 2. Blower Assemblies

Applications

M1 Series gas and M5 Series oil furnaces are

listed direct vent (sealed combustion), downflow

heating appliances for manufactured (mobile)

homes, recreational vehicles, and for use in

residentia!/modular/commercial construction.

The furnace must be located so that venting can

be properly achieved.

Air conditioning may be added to structures with

M1/M5 series furnaces using air conditioning or

conventional units. This Installation Instruction

manual includes special requirements for

incorporation of air conditioning equipment to the

M 1/M5 se rJesof fu maces. See Tabel 12 (page 32).

Multi-speed blower assemblies shown in Table

2, have been certified for field installation in M1/

M5 Series furnaces.

Unit Location

, The furnace shall be appropriately located to

the supply and return air distribution system

(See Page 7). Sides and back of the furnace

may be enclosed by wall framing. See Minimum

Clearances (page 2) and Figures 1- 3.

, The furnace installation is only intended for

free air return through the furnace door louvers.

DO NOT connect a ducted return air system

directly to the furnace. Improper installation

may create a hazard and damage equipment,

as well as void all warranties.

, Furnace may be installed on combustible

flooring when using NORDYNE Duct

Connectors. See pages 9 & 10.

, When installed in a residential garage, the

furnace must be positioned so the burners and

the source of the ignition are located no less

than 18 inches above the floor and protected

from physical damage by vehicles.

..........l¸-

"A"- s6'i

"A" Model _

w/o Coil

Cabinet "B'= 76"

"B" Model j _a

w/Coil

Cabinet

Figure 4. Overall Dimensions

CIRCULATING AIR REQUIREMENTS

WARNING:

Do not allow combustion products

to enter the circulating air supply.

Failure to prevent the circulation

of combustion products into the

living space can create potentially

hazardous conditions including

carbon monoxide poisoning that

could result in personal injury or

death.

All return ductwork must be secured

to the furnace with sheet metal screws.

For installations in confined spaces,

all return ductwork must be adequately

sealed. The joint between the furnace

and the return air plenum must be

air tight.

The surface that the furnace is

mounted on must provide sound

physical support of the furnace with

no gaps, cracks or sagging between

the furnace and the floor or platform.

Returnair andcirculatingair ductwork

must not be connected to any other

heat producing device such as a

fireplace insert, stove, etc. This

may result in fire, explosion, carbon

monoxidepoisoning,personalinjury,

or property damage.

Return Air Connections

U.S.A. home manufacturers sha!l comply with

all of the following conditions to have acceptable

return air systems for closet installed forced air

heating appliances:

, The return air opening into the closet shall not

be less than specified in the appliance's listing.

, The cross-sectional area of the return duct

system leading into the closet, when located

in the floor or ceiling shall not be less than 235

square inches (or 390 square inches for 5 ton

ready M1/M5 Furnaces).

CAUTION'.

HAZARD OF ASPHYXIATION: Do not

cover or restrict return air opening.

, Means sha!l be provided that prevent

inadvertent c!osure of fiat objects p!aced over

the return air opening !ocated in the floor of the

c!oset (versus the vertical front or side wa!!).

, The total free area of openings in the floor or

cei!ing registers serving the return air duct

system must be at beast 235 sq. in. At beast

one register shou!d be !ocated where it is not

!ikely to be covered by carpeting, boxes and

other objects.

, Materia!s !ocated in the return duct system

must have a flame spread c!assification of

200 or less. This inc!udes a closet door if the

furnace is in a c!oset.

, Noncombustib!e pans having 1" upturned

flanges are located beneath openings in a

floor duct system.

, Wiring materials located in the return duct

system shah conform to Artic!es 300-22 of the

National Electrica! Code (ANSi C1/NFPA-70).

, Gas piping is not run in or through the return

duct system.

CAUTION'.

HAZARD OF ASPHYXiATiON:

Negative pressure inside the

closet, with closet door closed

and the furnace blower operating

on high speed, shall be no more

negative than minus 0.05 inch

water column.

, Test the negative pressure in the closet with

the air-circu!ating fan operating at high speed

and the closet closed.The negative pressure is

to be no more negative than minus 0.05 inch

water column.

, Air conditioning systems may require more

duct register and open !ouver area to ob-

tain necessary airflow. Use NORDYNE's

certiduct program to determine proper duct

size for A/C.

Supply Air Connections

For proper air distribution, the supply duct system

must be designed so that the static pressure

measured external to the furnace does not

exceed the listed static pressure rating shown

on the furnace rating plate.

Location,size,andnumberof registersshould

beselectedonthebasisof bestairdistribution

andfloorplanofthehome.Thesupplyairmust

bedeliveredto the heatedspaceby duct(s)

secured to the furnace casing, running full

size and without interruption.

, The M1 Series gas and M5 Series oil furnace

is certified for use on wood flooring or supports,

but must be installed on top of a duct connector.

This factory supplied accessory must be

installed in the floor cavity and attached to the

supply air duct before the furnace is installed.

Three typical distribution systems are shown

in Figure 5. The location, size, and number of

registers should be selected on the basis of

best air distribution and floor plan of the home.

A Single trunk duct

_" Dual trunk duct

B w/crossover connector

Transition duct

IC[]_ w/branches _

Figure 5. Typical Supply Duct System

FURNACE INSTALLATION

NOTE: These Installation procedures are

suggested for typical furnace installations.

Since a!! installations are different from each

other, the sequence of instructions may differ

from the actual installation. Only qualified HVAC

technicians should install this furnace.

General Information

, The furnace must be leveled at installation and

attached to a properly installed duct system. Do

not use the back of the furnace for return

air. See page 7 for circulating requirements.

, The furnace must be installed so that all

electrical components are protected from

water.

, The dimensions of the room or alcove must be

able to accommodate the overall size of the

furnace and the installation clearances listed

in Table 1 and Figure 3 (page 6)

, The furnace must be installed upstream from

a refrigeration system.

, The plenum attached to the A/C coil box and

ductwork within 3 ft. of the furnace must be

installed so that surfaces are at least 1/4" from

combustible construction.

, The cabinet plug must always be used to close

the hole inthe side of the furnace when rotating

the inducer.

, M1/M5 models must be installed with the Nordyne

A/C coil box which are listed according to the

cabinet size of the furnace: "B" cabinet - 920169,

"C" cabinet -920171, and"D" cabinet- 920172.

Requirements and Codes

Installer must be familiar with and comply with

all codes and regulations applicable to the

installation of these heating appliances and

related equipment, inthe absence of local codes,

the installation must be in accordance with the

current provisions of one or more of the following

standards.

, Federal Manufactured Home Constructions

& Safety Standard (H.U.D. Title 24, Part

3280.707[a][2])

, American National Standard (ANSI-119.2/

NFPA-501C) for all recreational vehicle

installations.

, American National Standard (ANSI-Z223.1/

NFPA-54) and/or CAN/CSA B149 for all gas-

fired furnace models.

, American National Standard (ANSI-Z95.1/

NFPA-31) and/or CSA B139 for all oil-fired

furnace models.

, American National Standard (ANSI-C1/NFPA-

70) and/or CSA 22.1 Canadian Electric Code

Part 1 for all electrical field wiring.

, Units have been researched under standards

UL 307A & B, UL727-1999, ANSI Z21.47b/

CSA 2.%-2008, and CSA B140.10.

Locating and Cutting Duct Openings

Floor cut-outs and fuel line holes must be carefully

located to avoid misalignment of the furnace,

and vent piping. To locate standard ducts see

Figure 6 (page 9). For round ducts, see Figure 7.

1. Measure 10" from the rear wall or alcove and

mark the centerline of the cut-out on the floor.

2. Using the centerline as a starting point, draw

the rest of the duct cut-out to the dimensions

shown in Figures 6 or 7.

3. Cut out the floor opening 1/16" larger than

the actual cutout drawn. This will allow some

clearance when installing the duct connector.

4. Measure from the top of the floor down to the

top of the supply air duct to obtain the depth of

the floor cavity. NOTE: The depth of the floor

cavity shown as "X" in Figure 9 (page 9) will

determine the correct duct connector.

5. Determine which duct connector to use from

Table 3 (page 9).

6. Measure and drill gas hole. and cut out for cooling

coil (if applicable). See Figures 6 or 7 (page 9).

201" _

14 1/2"_ 2 3/4"

C'_ J Z CUT-OUTFOR 1 3/4"

I _ I CL ¢'- /OPTIONAL ¢_ /

1 3/4"_i: : : :_ :A:L;:F; ELIL,; E _ _'

3/4"_ _ ENTRY 1 1/4" Dia, \\ LINE

1 7/8"_ _ FURNACE

2 7/8"_ _ DOOR

Figure 6. Cut=Out Dimensions for

Standard Duct Connectors

±_J_/_ FLOOR OPENING !._'

"X" _ _,/,I

FLOOR

CAVITY

Figure 9. Floor Cavity

if Floor Cavity

"X" is:

7/8"/(22)

2"/(51)

4-1/4" /(108)

6-1/4"/(159)

8-1/4" /(210)

10-1/4" /(260)

12-1/4"/(311)

Duct Connector

Type & Part Number

Standard Duct

901987A

901988A

901989A

901990A

901991A

901992A

901993A

Round Duct

904008

904009

904010

904011

904012

904013

904014

Note: Dimensions shown as Inches /(Millimeter_

Table 3. Duct Connector Sizes

Figure 7. Cut=Out Dimensions for

Round Duct Connectors

Hole for

Gas Line

Mounting Plate

Duct

Connecto

Figure 8. Standard Duct Connector In-

stalled

Standard Duct Connector installation

The standard duct connector is designed for use

on ducts 12" in width. However ducts narrower

than 12" may not allow sufficient clearances

for this type of installation. For an alternate

installation method, see page 10.

1. Center the duct connector in the floor opening

with bottom tabs resting on top of the supply

air duct.

2. Mark the cut-out area on the supply air duct by

tracing around the connector tabs (Figure 8) of the

duct connector.

3. Remove the duct connector and cut out the

marked area of the supply air duct 1/4" larger

the actual cutout drawn.

4. Install the duct connector back in the floor

opening with the bottom tabs extending into

the supply air duct.

5. Install the mounting plate (Figure 8) under

the back side of the duct connector. Align the

screw holes in both components.

6. Secure the duct connector and the mounting

plate to the wood floor with appropriate size

screws.

7. Bend the connector tabs on the bottom of

the duct connector upwards and as tight as

possible against the supply air duct.

8. Bend both tabs on the mounting plate up 90 °.

See Figure 10, (page 10)

9. Seal all connections with industrial grade

sealing tape or liquid sealant.

NOTE: Requirements for sealing ductwork

vary from region to region. Consult with local

codes for requirements specific to your area.

BEND TABS TIGHTLY

AGAINST SUPPLY AIR DUCT

Figure 10. Duct Connector Tabs

Alternate Attachment Method

The standard duct connector is designed for

use on ducts 12" in width. However if there is

insufficient clearance to bend the duct connector

tabs, this alternate attachment method may be

used.

1. Score and cut the top of the supply air duct as

indicated in Option 1 or Option 2 (Figure 11).

With Option 1 choice, cut out the metal from

the shaded area.

2. Fold the two flaps (Options 1 or 2) up to form

the opening for the duct connector.

3. install the duct connector with the bottom tabs

extending into the supply air duct.

4. Bend the tabs on the bottom of the duct

connector upwards and as tight as possible

against the supply air duct (Figure 12).

5. Form the flaps (Options 1 or 2) up against the

duct connector as tight as possible.

6. Secure the duct connector flaps to the supply air

duct with staples (3 minimum) or if a 2x block/

joist is not provided, use sheet metal screws

(2 minimum). NOTE: The duct connector tabs

may be attached to the air duct with sheet

metal screws or other suitable fasteners as

long as the duct connector and the air duct

are securely attached.

7. Seal all connections with industrial grade

sealing tape or liquid sealant.

NOTE: Requirements for sealing ductwork

vary from region to region. Consult with local

codes for requirements specific to your area.

OPTION 2

Flap _ Supply _ Cut Here

i Air Duct

i ¢

i _;'t _ ! "% J_ _: J _

E E

--_ __ Cut Here

,,o ,,o

Figure 11. Narrow Air Duct Openings

OPTION 1

Rernove

this

I Cut Here

LE Remove

this

Flap

Duct connector tabs Staples or sheet metal screws

, ,/ \, , /\

!_t ]_ _]_

F"arrowq

r q

I Ductj

hConnector_

Sheetscrewsmetal_ _-_ _

Figure 12. Narrow Ducts

Round Duct Connector Installation

1.Apply a bead of caulking, mastic, or other

approved sealant around bottom side of

connector.

2. Install and center the duct connector in the

floor opening.

3. Install the mounting plate under the back side

of the duct connector. See Figure 13 (page 11).

NOTE: Align the screw holes in both

components.

4. Secure the duct connector and the mounting

plate to the wood floor with appropriate size

screws.

5. Connect the round supply duct to the underside

of the duct connector and secure them with

field supplied sheet metal screws.

&Seal all connections with industrial grade

sealing tape or liquid sealant.

NOTE: Requirements for sealing ductwork

vary from region to region. Consult with local

codes for requirements specific to your area.

installing The Furnace

Sides and back of the furnace may be enclosed

by wall framing such as in a closet or alcove.The

dimensions of the room or alcove must be able

to accommodate the overall size of the furnace

and the installation clearances outlined on page

2 and Figures 1 -4 (page 6). The furnace shall

be appropriately connected to the supply and

return air distribution system as shown in Figures

14 & 15 (page 11).

1. Remove furnace outer door(s) and bottom fuel

line knockout.

2. Place furnace onto duct connector and center

with floor opening.

3. Slide onto mounting plate. (Bottom rear slots

on furnace should engage with mounting plate

tabs.)

4. Secure front with one (1) fastener at each

corner (Figures 14 or 15).

NOTE: Additional fasteners may be used at rear,

sides or through door frame, as desired, tosecure

furnace to closet or alcove framing.

SCREWS MOUNTING

DUCT _' :_ PLATE

CONNECTOR i i

CONNECTION

Figure 13. Round Duct Connector Installed

SLIDE FURNACE

ALL THE WAY BACK

ONTO MTG. PLATE

Figure 14. "A" & "B" Cabinet Furnaces

Figure 15. "A" Cabinet Furnace on Coil

Cabinet

"_- ROOF JACK

_ SLANT DECK

FLASHING

PITCHED j

ROOF

f i II"x"(SEETABLE5)

CEILING ,_, ,_-- I_

lii'--P'uePipe

--ILIN _ ,_--Combustion Air Pipe

Furnace 66"or76"

Figure 16. Ceiling Cavity Depth

ROOF JACK iNSTALLATION

Required ceiling and roof cut-out openings (see

Figure 11) must be carefully located to avoid

misalignment of the furnace and Roof Jack.

Note: Install only Roof Jack Assemblies listed

in Table 4 on this heating appliance.

Roof Jack Selection

1. Determine depth of ceiling cavity from center

of roof opening to center of ceiling opening.

(See Dimension "A" in Figure 16.)

2. Determine ceiling height and subtract height

of furnace. (See Dimension "B" in Figure 16.)

3. Add dimensions A + B (and X from Table 5

and Figure 18 if slant deck flashing is used).

The total length of (A + B + X) must be within

the minimum and maximum range of one of

the Roof Jacks listed in Table 4.

Application Notes:

, FAW, FAWT, SAW and SAWT Series Roof

Jacks with a 5" diameter inner vent pipe may

be used with all models of M1 Series gas and

M5 Series oil furnaces.

F = Flat Flashing: flexes from 0/12 to 1/12 roof

slope. See Figure 17 (page 12).

S = Slant Flashing: 2.5/12 Slope flexes from

1/12 to 4/12 roof slope, 4/12 flexes from

3/12 to 5/12. See Figure 18.

Stainless steel roof jacks are available.

M1/M5 furnaces may be used with roof jacks

as tall as 170" (except M1M 056 & M1B 066

models, which are limited to 120"). An internal

roof jack extension (p/n 901935 -10", p/n

903107 - 18") can be used to increase roof

jack height. All connections inside the home

must be made below the ceiling.

NOTE: If the roof jack crown is covered or blocked

with snow, the furnace will not operate properly.

MODEL NUMBER

(ES)AW(T)1523-(0,2,4)(A,S)

(ES)AW(T)2135-(0,2,4)(A,S)

(F,S)AW(T)2747-(0,2,4)(A,S)

(F,S)AW(T)3563-(0,2,4)(A,S)

(F,S)AW(T)5195-(0,2,4)(A,S)

S AW T 27

APPROX. LENGTH

BELOW FLASHING

15"-23"

21"- 35"

27"- 47"

35"- 63"

51"- 95"

47 - 2 S

T T U T T T 2F'UESTEELTYPE

F = FLAT FLASHING _ I I I I I A= ALUMINIZED

S=SLANTFLASHING/ WIN.ADJ. / S=STAINLESS

LENGTR /

AW= ALL WEATHER / / _ FLASHING

/ / PITCH/12"RISE

/ / 0=FLAT

/ / 2=2,5/12

TYPE: / / 4=4/12

BLANK = NON-TRANSIT _ /

L MAX ADJ

T= TRANSIT MODE " '

LENGTH

Table 4. Roof Jack Assemblies

CEiLiNG OPENING

Figure 17. Example of Fiat Jack

with Flashing

Figure 18. Example of 21/2112Slant Jack

with Flashing

If the home is located in regions where snow

accumulation exceeds 7" (HUD snowload zones)

use an external roof jack extension (p/n 901937).

Extensions are optional accessories and may be

purchased through your NORDYNE distributor.

Locating and Cutting Roof & Ceiling Openings

DO NOT ALLOW DEBRIS TO FALL INTO THE

FURNACE. THIS COULD CAUSE UNSAFE

OPERATION AND VOIDS THE FURNACE

WARRANTY. Use the top cap that comes with

the furnace packaging (or alternate protector) to

prevent debris from falling intothe furnace before

the final roof jack connection is made

1. Locate centerof Roof Jackopening, measure

13 1/2" from the rear wall of closet or alcove

along the center line of furnace and floor

opening. See Figure 19.

2. Cut ceiling and roof holes as follows:

, Ceiling = 8 3/4" (222 mm) diameter

Roof = 9 3/8" (238 mm) diameter

IMPORTANT:

Refer to the installation

instructions provided with

optional air conditioning

packages when installing

furnaces with optional cooling

coil cabinet or with optional

C* series indoor coils.

0 _=

/CUT-OUT FOR _ +

_FLUE AND )¢'-

LL \ ROOF JACK /

FURNACE

7 OUTER

DOOR

Figure 19. Cut-Out Dimensions for

Flue & Roof Jack

ROOF JACK SERIES

"F Series

"S" Series (2.5 /12

Pitch only)

IF ROOF PITCH IS:

2"in 12"

2-1/2" in 12"

3"in 12"

3-1/2" in 12"

4"in 12"

4-1/2" in 12"

5"in 12"

5-1/2" in 12"

6"in 12"

6-1/2" in 12"

Optional Deck Flashings for Flat and

SLANT DECK

FLASHING NUMBER

903893 (2.5/12)

903894 (3/12)

903895 (4/12)

903895 (2.5/12)

903894 (3/12)

903895 (4/12)

2.5/12 Pitch Roof Jacks. 4/12

"X" FACTOR

IS:

2-1/8"

2-1/2"

2-7/8"

3-1/4"

3-5/8"

2-1/8"

2-1/2"

2-7/8"

3-1/4"

3-5/8"

Pitch Roof Jacks not applicable.

Table 5. Slant Deck Flashings

Installing The Roof Jack

1. Apply caulking compound on underside of roof

flashing to form a continuous strip at least 3/8"

wide around the underside of the perimeter of

the flashing. See Figures 20 or 21.

2. Connect Roof Jack Assembly to the furnace.

Insert telescoping Roof JackAssembly through

the opening cut on the roof.

3. Connect flue pipe to flue collar of furnace. See

Figure 22.

4. Connect combustion air pipe to furnace collar

with sheet metal screw (See Figure 22).

NOTE: It is recommended that the connection

of the combustion air pipe to the furnace be

made before the flashing is secured to the

roof to maintain alignment of roof jack and

furnace connections.

NOTE: For replacement furnaces, be sure

the inner flue pipe connects over the furnace

vent collar. DO NOT use a smaller diameter

inner flue pipe which could slide inside the

furnace vent collar and restrict the flow of

furnace flue products.

5. Attach Roof Flashing. If necessary, shift roof

flashing slightly in the roof opening so that

assembly is in alignment with furnace.

NOTE: If flashing is mounted on 12 degree

angle, it may be necessary to adjust the angle

to match the roof pitch; (1/12 - 4/12 maximum).

6. Press down firmly on roof flashing (over

caulking) to make the seal with roof water tight.

7. Secure flashing with appropriate fasteners.

NOTE: For added protection against leaks, coat

the flashing plate and fasteners with approved

roofing compound.

Installation of Transit-Mode Venting System

Manufactured Home Factory

1. Furnace must be installed in accordance to

furnace installation manual.

2. Select appropriate Roof Jack from Table 4

(page 11).

3. Roof Jack (less upper Roof Jack crown), with

weather cap tobe installed as described under

Install Roof Jack.

NOTE: Upper Roof Jack crown to be stored in

a prominent location inside manufactured home

until on-site installation.

Secure roof jack with

appropriate fasteners

after connecting to

furnace

Caulk under tool

flashing to prevent

water leakage

Roof

Ceiling

, ,, /

Optional 2-ptece cethng

ring #902521

Figure 20. Flat Roof

JSeku_e_tl OwerritlO f _Upper Roof Jack Section

no. 10S.M. screw X I _ j Optional Slant

Deck Flashing

Secure flashing

Ca with appropriate

flash fasteners

Figure 21. Pitched Roof

__ onnect outer

flue shield

ue pipe

: Vent Cellar

Mtg. Flange

Figure 22. Combustion Air Pipe Connection

tags suppliedmust be ELECTRICALINFORMATION4.The four warning

installedasfollows:

oTo weather cap

. Tofuel line connection point (Gas) orfurnace

burner (Oil)

To furnace flame observation door (Gas or

oil)

.To furnace wall thermostat

5. Transit-mode weather cap to be removed and

upper Roof Jack crown installed (See Figure

24). Do Not Discard screws.

6. Place upper Roof Jack (crown) on to the flue

pipe assembly. NOTE: Make sure inside flue

pipe attaches over inner flue pipe and outer

Roof Jack pipe fits over outer pipe.

7. Secure in place using three (3), #10, 1/2" sheet

metal screws removed in step 5. Do not use

the same holes which secured the rain cap in

place.

8. Remove and discard venting system warning

tags.

WARNING:

Failure to properly secure the flue

pipe to the furnace may result in

fire, explosion or asphyxiation

when operating the furnace.

f UPPER ROOF

JACK (CROWN)

WEATHER CAP

FLASHING

C;I:I

PIPE

FLUE ASSEMBLY

soREw E

Figure 23. Roof Jack Crown

WARNING:

To avoid electric shock, personal

injury, or death, turn off the electric

power at the disconnect or the

main service panel before making

any electrical connections.

, Electrical connections must be in compliance

with all applicable local codes with the current

revision of the National Electric Code (ANSI/

NFPA 7O).

.For Canadian installations the electrical

connections and grounding shall comply with

the current Canadian Electrical Code (CSA

C22.1 and/or local codes).

Line Voltage Wiring

It is recommended that 115VAC line voltage be

supplied to the furnace from a dedicated branch

circuit containing the correct fuse or circuit

breaker for the furnace. See Table 10 (page 31).

iMPORTANT NOTE: An electrical disconnect

must be installed readily accessible from and

located within sight of the furnace. Refer to

the wiring diagram inside the control box

cover or Figures 40- 45 (pages 34- 39) for the

wiring of your particular unit. Any other wiring

methods must be acceptable to authority

having jurisdiction.

CAUTION'.

Label all wires prior to disconnection

whenservicingcontrols.Wiringerrors

can cause improper and dangerous

operation. Verify proper operation

after servicing.

IMPORTANT NOTE: Proper line voltage

polarity must be maintained in order for the

control system to operate correctly. Verify

the incoming neutral line is connected to

the white wire and the incoming "hot" line is

connected to the black wire.The furnace will

not operate unless the polarity and ground

are properly connected as shown in Figure 25.

Route all electrical wiring to the left side of the

furnace. For installation of "A" Cabinet furnaces,

allow sufficient slack in the wiring if an optional

cooling coil cabinet is added at a later time. Use

of copper conductors is recommended.

Connecting Power Supply Wires

1. Remove the furnace control panel cover.

2. Route wires (115 VAC) through the strain

relief on the left side of the furnace control box

(see Figure 24).

3. Connect the hot wire to the black pigtail lead,

and the neutral wire to the white pigtail lead.

Secure all connections with suitable wire nuts.

4. Connect the ground wire to the grounding

screw.

5. Reinstall the control panel cover and secure

with the original mounting screws.

Low Voltage Wiring

The thermostat must be installed according

to the instructions supplied by the thermostat

manufacturer. Low voltage connections (24 VAC)

from the thermostat are wired to the terminal strip

on the integrated control in the furnace.

NOTE: The thermostat must not be installed on

an outside wa!l or any other location where its

operation may be adversely affected by radiant

heat from fireplaces, sunlight, or lighting fixtures,

and convective heat from warm air registers or

electrical appliances. The nominal anticipator

setting is 0.4. (Refer to the thermostat literature

for additional information.)

Five-conductor thermostat wire is recommended

for 24 volt low-voltage circuit (2-wire is required

for furnace only; 5-wire for heating and optional

cooling systems). Refer to table 6 for thermostat

wire information.

Connecting Thermostat Wires

1. Insert 24 volt wires through the plastic grommet

just above the control panel.

2. Connect the thermostat wires to the furnace

low voltage pigtails (see Figure 25).

3. Connect low-voltage circuit to the wall

thermostat.

4.A hole may be made in the furnace cabinet

to ease thermostat wiring. Make sure that the

wiring is protected from the sharp edge of the

added hole.

On-Off

Switch -__l _ _,(_./Tbermostat Wires

Furnace

Blower - q i1_,_ /c°ntr°l B°x

Plug /,_e '_I_,dll_ To combustion

Power" If', _I I Blower or Flame

¢[_ Roll-out Switch

Entry I!

_,_ _/_e'--- To Gas Valve

On-Auto Switch or Burner

(Heating Models Only)

Figure 24. Control Panel (All IVlodels)

Verifying Anticipator Setting

After the furnace is installed, check the thermostat

anticipator against the nominal setting of 0.4.

1. Connect the milliamp meter in series with one

of the gas valve's low voltage terminals.

2. Energize the gas valve.

3. Read the value of the milliamps.

4. Adjust the heat anticipator of the thermostat

to the value on the milliamp meter. If the heat

anticipator is set too high, the furnace may

delay turning on. If set too low, the furnace

may cycle frequently and not provide comfort

to the homeowner.

Thermostat

Wire Gauge

Recommended T'STAT Wire

Length (Unit to T'STAT)

2-Wire 5-Wire

(Heating) (Heating/Cooling)

24 55 25

22 90 45

20 140 70

18 225 110

Table 6. Thermostat Wire Gauge

M1/IVl5 NC

Thermostat__

RC Red

W • White

G"- Green J_

Yellow

Ready Furnace

Red o

White ®

Green ®

Grey

-- ==

Figure 25. Thermostat Wiring For

A/C Ready Models

Grounding

/K WARNING:

To minimize personal injury,

the furnace cabinet must have

an uninterrupted or unbroken

electrical ground. The controls

used in this furnace require an

earth ground to operate properly.

Acceptable methods include

electrical wire or conduit approved

for ground service. Do not use gas

piping as an electrical ground!

FUEL SUPPLY AND PiPiNG

WARNING:

All piping must conform with local

building codes, or in the absence

of local codes, with the most recent

edition of the National Fuel Gas

Code ANSI Z223.1 or (CAN/CGA

B149.1 or .2). Failure to follow all

safety warnings could result in

serious injury, death or property

damage.

This furnace may be installed with left or right

side gas entry. When connecting the gas supply,

provide clearance between the gas supply line

and the entry hole in the furnace casing to avoid

unwanted noise and/or damage to the furnace.

Typical gas service hookup for this furnace is

shown in Figure 26. Table 14 (page 37) lists

gas flow capacities for standard pipe sizes as a

function of length in typical applications based

on nominal pressure drop in the line.

iMPORTANT NOTES:

• Some local regulations require the

installation of a manual main shut-off

valve and ground joint union external to

the furnace (Figure 36). The shut-off valve

should be readily accessible for service

and/or emergency use. Consult the local

utility or gas supplier for additional

requirements regarding placement of the

manual main gas shut-off.

= Gas piping must never run in or through

air ducts, chimneys, gas vents, or elevator

shafts.

= Compounds used on threaded joints of gas

piping must be resistant to the actions of

-liquefied petroleum gases.

=The main gas valve and main power

disconnect to the furnace must be properly

labeled by the installer in case emergency

shutdown is required.

= Flexible gas connectors are not recom-

mended for this furnace but may be used

if allowed by local jurisdiction. Only new

flexible connectors may be used. DO NOT

reuse old flexible gas connectors.

=Adrip leg should be installed in the vertical

pipe run to the unit (Figure 36).

=All piping shall be black iron pipe, or

equivalently sized steel tubing, internally

tinned copper tubing may be used for gas

supply systems.

Fuel line installations other than typical

installations shown in Figures 26 and 27

(page 17) must comply with the fuel piping

provisions stated in the Federal Manufactured

Home Standard (H.U.D. TITLE 24, PART 280)

and the National Fuel Gas Code (ANSI-Z223.1/

NFPA-54).

, Optional fuel inlet lines are available for all

gas furnace models to permit the addition of

a 1/2" RRT. shut-off valve above the floor.

NOTE: Shut-off valve must be designed and

listed for use with liquid petroleum (L.R gas).

The gas supply to your home will either be Natural

Gas or L.R (bottle gas). Your furnace is factory

equipped to operate on Natural Gas. If your gas

supply is L.R (bottle gas), you must contact a

qualified serviceman or gas supplier to convert

the furnace. Instructions for gas conversion are

listed on page 18. Factory installed orifice sizes

are listed in Table 10 (page 31).

For natural gas operation, the furnace is designed

for 7" W.C. inlet pressure. Pressure is reduced

to 3 1/2" W.C. by the pressure regulator in the

gas valve. The maximum inlet pressure for the

valve is 13" W.C.

On-Off-Fan

Switch

Control

Panel

Floor

To Gas

Supply

FtOor

Air. Fuel

Line Entry

Figure 26.Typical Gas Piping

ForL.Rgas,pressuretothegasvalvemustbe

morethan11"W.C.butnotmorethan13"W.C.

Pressureisreducedto 10"W.C.bythepressure

regulatorinthegasvalve.

CAUTION:

Furnace conversion must be per=

formed by a qualified technician.

improper conversion can cause

unsafe operation, explosion, fire

and/or asphyxiation.

Oil Tank and Piping installation

The following procedures are recommended as

good practice. However, requirements of local

codes and ordinances, H.U.D. Manufactured

Home and Safety Standards or National Fire

Protection Association must be satisfied, where

they apply, for an approved installation.

, Use a tank capacity suitable for the application

with a weatherproof, capped fill opening and

a shielded vent to let in air as fuel is used.

,The inside of the tank must be clean before

filling. All water, rust, sediment, and debris

must be flushed out.

, A fuel or tank gauge (Figure 27) is recom-

mended for easy checking of the fuel level.

Check the gauge reading with a dipstick.

, Locate the storage tank conveniently near

the home. If the fuel tank is installed above

ground, the tank may rest 3 to 4 inches off

the ground. Fuel tanks may also be buried if

properly coated to resist corrosion. The vertical

dimension from the bottom of the fuel tank to

the fuel pump must not exceed 10 feet.

_, Keep the tank filled, especially in the summer

to reduce the accumulation of condensation.

One Line System

The one line system is highly recommended

where vertical lift, from bottom of tank to pump,

is less than eight feet (Figure 27). A single line

hookup has the advantage of lower cost and

quieter operation.

Two Line System

If a two pipe system is used or if oil is taken from

the bottom of the tank, a filter is recommended.

A two line system should only be used if vertical

lift exceeds 8 feet.

1. Install the oil feed line as outlined in steps 1 - 6

below.

2. Install the oil pump bypass plug in the bottom

return port.

3. Route the return line up through the furnace

base to the return port of the pump. Route the

other end of the line to the tank, using 3/8"

O.D. copper tubing or 1/4" pipe with the ends

capped.

4. Insert the return line through the second

opening in the duplex bushing. If the bottom

of the tank is lower than the pump intake, the

tube should be inserted three or four inches

from the tank bottom. If the bottom of the tank

is higher than the pump intake, the return line

should extend not more than 8" inside the tank.

Fuel line Hook-Up

1. Use a 3/8" O.D. copper tubing for the fuel line.

NOTE: Cap the end with tape to keep out dirt

while the line is being routed.

2. Install duplex bushing for two 3/8" lines in the

top fitting of the tank. See Figure 27.

3. Insert one end of the tubing through the duplex

bushing until it is three to five inches from the

bottom drain. Tighten the bushing.

4. Route the line where it will not incur any

damage. Make bends gradual and avoid kinks

which might restrict oil flow.

3/8" Oil Supply Line Oil

Furnace

Vent with ca 2" Duplex

Top of Tank

Shut-off

Valve

Cordset

Bypass Solenoid Valve

NozzJe Port Screw

3/16 Flare Fitting _]_- ._

_ 1/4 NPTF ,

Flue Gas ',.LJ . _

Sampling

Hole _/_,-?_ _ L_

_ E£_ Bleed & Gauge Port I]:Z';

Inlet Port • h Return Port -Install 1/5" Bypass Pipe

1/4 NPTF Plug for 2-pipe System Only.

On-Off-Fan (Use 5/32" Allen Wrench)

Drain

Oil-Gun

End of 0il Supply Line Optional Burner

3' to 5" Above Bottom Drain Fuel

Filter Floor

NOTE: Additional venting may be Floor Cavity

required if tank is filled rapidly,

If fuel pump fails to lift oil, check for air

leaks and tighten all fuel fittings Re-

optional (top) return port RepJace return

prime fuel pump by injecting fuel oil into

[port p ug and repea pr m ng procedureJ

Figure 27. Typical Oil Piping for Above Ground (Single-Line) Supply

5.Openthefurnacedoorandconnecttheoilline

totheintakeportonthepump.Tightenother

portplugsonthepump.NOTE:Verifytheoil

lineisairtight!Airleakscancausethepump

to loseprimeandwillcreateotherproblems

suchasnozzlefailure,odors,rumblingnoise,

andfalsesafetyshutdown.

6.Inserttheshortlengthofthecoppertubelevel

withthebottomof theduplexbushing.Form

thetubeintoaninverted"U"toserveasavent.

to a dedicatedpump prime mode,during

whichthemotor,igniterandvalvearepowered

for 4 minutes.The yellowLEDwill be on.

NOTE:If primeis notestablishedduringthe

fourminutepumpprimemode,repeatstep3

untiltheoilpumpisfullyprimed.

4.Whenoilflowisclearandfreeof airbubbles,

closeair-bleedvalve and tighten.(Timeto

bleedairoutwillvarydependingonlengthof

oilline,numberof bends,etc.)

LeakCheck

Toeliminateproblemscausedbyair in theoil

line,all connectionsinthe oil supplylineand

all plugs,nuts,andfittingsonthe pumpmust

be airtight.NOTE:This includesthe nut that

coversthepressureadjustment.It is important

thatthe hook-upbedonecarefullyandwitha

goodflaringtool.

Preparethe burnerfor primingbyattachinga

clearplastichoseoverthebleedportfittingand

fullyopeningthepumpbleedport.Useasuitable

containertocollectpurgedoil.

Toensurecontinuousoperation,usea wireto

jumpterminalsT-T(orF-F)ontheprimarycontrol

whileburneris running.

Afterthepipingto thefurnaceis complete,all

connectionsmustbe testedfor leakage.This

includespipeconnectionsatthemaingasvalve,

emergencyshutoffvalveandeachjointorunion.

Thesoapandwatersolutioncanbeappliedusing

asmallpaintbrush.Ifanybubblingisobserved,

theconnectionisnotsealedadequatelyandmust

beretightened.Repeatthetighteningandsoap

checkprocessuntilbubblingceases.

Priming furnaces equipped with Honeywell

R7184 primary control:

1. While the ignition is on, press for 1/2 second

(or less), and release the reset button. The

lockout time will be extended to 4 minutes.

2. If prime is not established within the 4 minutes,

the control will lock out. Press the reset button

to reset the control.

3. Repeat steps 1 & 2 (if needed) until the oil

pump is fully primed.

Priming furnaces equipped with the Beckett

7505 primary control:

1. After the burner starts, press and hold the

reset button until the yellow LED turns on (15

seconds). This indicates that the button has

been held long enough.

2. Release the reset button. The yellow LED will

turn off and the burner will start up again.

3. At burner start up, click the reset button while

the igniter is still on.This transitions the control

Fuel Oil Type

Do not use fuel oil heavier than Grade No. 2.

Grade No. 1 may be used where the oil supply

is subject to low temperatures.

DO NOT USE GASOLINE, CRANKCASE OIL,

OR ANY OiL CONTAINING GASOLINE.

/K WARNING:

Failure to keep supply of oil clean

by various procedures described

above may cause failure of certain

components such as the fuel pump

gears, check valve, shaft seal, or

burner nozzle which may result in

a burner fire.

Conversion to Propane (LP) Gas

This gas fired heating appliance was shipped from

the factory for use with natural gas. However, the

appliance can be converted for use with LP gas.

Use the following procedure for gas conversion

of the burner. See Table

Atmospheric and Direct Ignition Furnaces

1. Follow the instructions "How to Shut Off Gas"

on pages 21 or 22.

2. Disconnect the gas pipe union and the electrical

wires connected to the gas valve.

3. Remove the pilot tube and thermocouple from

the gas valve (M1G).

4. Remove the gas valve assembly:

a. Remove screw(s) from gas valve bracket.

Gas valve and spud may be removed.

Orifice is located at the end of the spud

(M1G or M1M) or remove three (3) bolts

from U-shaped manifold plate and orifice

assembly (M1 B).

5. Replace the main orifice with the L.R gas

orifice supplied in the envelope located by the

gas valve. Verify the orifice size matches the

nameplate or Table 10 (page 31). NOTE: It is

not necessary to convert the pilot orifice.

6.ForHoneywellgasvalveswiththe regulator

converter(Figure28,page19):

a.Unscrewthe pressureregulatorcapand

checkforthelettersNATorLR

b.Invertthecapandtightenuntilsnug.

7.ForRobertshawgasvalveswiththeregulator

converter(Figure29):

a.Removetheblackcoverandunscrewthe

converterlocatedontopof thegasvalve.

b.Inverttheconverter:forLPtheredringwill

belocatedatthebottomandtheLPstamping

ontheconverterwillappearrightsideup.

c.Screwconverterbackintothe regulator,

handtightplus1/8turn.Replacetheblack

coveron theconvertertopto protectthe

threads.

8.Reassemblethe burnerassemblyinto the

furnace.

9.Reconnectthegaspipingandelectricalwires

tothegasvalve.

10.Openthe manualshut-offvalveandfollow

the LightingandOperatinginstructionson

page22.

HighAltitude Conversion

High altitude conversion with this furnace

depends on the installation altitude and the

heating value of the gas. The installation of this

furnace at altitudes above 2,000 feet must meet

the requirements of the National Fuel Gas Code

or local jurisdiction. In Canada, the requirements

for high altitude are different and governed by

CGA B149.1. Please consult your local code

authority.

WARNING:

The reduction of input rating nec=

essary for high altitude installation

may only be accomplished with

factory supplied orifices. Do not

attempt to drill out orifices in the

field. Improperly drilled orifices

may cause fire, explosion, carbon

monoxide poisoning, personal

injury or death.

This furnace is shipped from the factory with

orifices and gas regulator settings for natural gas

operation at sea level altitudes. At 2000 feet, the

NFGC requires that this appliance be derated

4% for each 1000 feet of altitude. For example,

the input needs to be reduced 8% at 2,000 feet,

12% at 3,000 feet and etc. This deration is in

reference to the input rate and gas heating value

at sea level. See Table 12 (page 32).

PRESSURE

REGULATOR OTHER SIDE

CAP OF CAP

Ml1678

Figure 28. Honeywell Gas Valve

LP Gas

Configuration

Red

Black Cove ,_}) -"

Natural Gas

Configuration

Figure 29. Robertshaw Gas Valve

Flue Gas Sampling

It may be necessary to take flue gas sampling

from oil and gas furnaces (M5S and M1B Series

Models) in order to check the performance after

furnace installation. A flue gas sample may

be taken from the heat exchanger, which is

located behind the hole of the top-front of blower

compartment.

1. Turn off all electric power to the appliance.

2. Remove the black plastic cap located above

the blower. Do not discard cap.

3. Drill a hole through the top of the blower

compartment. NOTE: Hole diameter should

be same size as sampling tube.

4. Insert sampling tube through the drilled hole

and into the heat exchanger.

5.After a complete check and adjustment

of furnace performance, seal the drilled

hole with a screw larger than the hole.

NOTE: Seal the screw threads with silicon

sealant -rated at least 500 ° R

6. Plug the outside hole with the plastic cap

removed in step 3.

STARTUP AND ADJUSTMENTS

PLEASE READ ALL SAFETY iNFORMATION

BEFORE LIGHTING THE FURNACE

FiRE OR EXPLOSION HAZARD

WHATTO DO IFYOU SMELL GAS

•Do not try to lightany appliance.

•Do not touch any electrical switch;

do not use any phone in your

building.

•Leave the building immediately.

•immediatelycall your gassupplier

from a neighbors phone. Foliowthe

gas suppliers instructions.

•if you cannot reach your gas

supplier, call the fire department.

WARNING:

Before placing the furnace in

service, it must be checked to

ensure it is equipped for the type

of gas being used.The burner flame

must be observed and adjusted

if necessary. Failure to observe

this caution may result in unsafe

operation, explosion and/or fire, or

asphyxiation. See the Gas Supply

and Combustion Air sections.

. The first lighting of the furnace after any

home setup must be performed by a

qualified service technician.

.If this appliance has a pilot that must be lit by

hand, follow these instructions exactly.

.BEFORE LIGHTING: Smell all around the

furnace for gas and next to the floor. Some

gas is heavier than air and may settle on the

floor.

.Use only your hand to push in the gas control

lever. Never use tools. Ifthe lever will not push in

by hand, don't tryto repair it. Force or attempted

repair may result in a fire or explosion. Call a

qualified service technician.

.Do not use this furnace if any part has been

under water. Immediately call a service

technician to inspect the furnace and to replace

any part of the gas valve or control system

which has been under water.

Lighting Instructions- Standing Pilot Models.

1. Set the thermostat to the lowest setting.

2. Turn off all electric power to the appliance.

3. Remove the furnace door.

4. Push in and move the gas control lever to the

OFF positon (Figure 30). DO NOT FORCE!

5. Wait 10 minutes to clear out any gas. Ifyou smell

gas, STOP! and read the Safety Information.

If you don't smell gas, proceed to step 6.

6. Find pilot - follow metal pilot tube from gas

control valve. Open hinged fire observation

door. The pilot is found at the end of the pilot

tube just left of the pilot shield (Figure 31).

7. Lightly depress the gas control lever and move

it to the ON position. Release and move the

lever to the PILOT position.

8. Move the control lever to SET and hold.

Immediately light the pilot with a match.

Continue to hold the control lever for about one

(1) minute after the pilot is lit. NOTE: The pilot

flame is adjustable by turning the adjustment

screw located on the gas valve with a small

screwdriver. See Figure 29.

9. Release the lever and it will spring back to the

PILOT position. NOTE: Pilot should remain lit.

If it goes out, repeat steps 4 through 8 above. If

the lever does not spring back when released,

immediately call your service technician or gas

supplier. If the pilot will not stay lit after several

tries, move the gas control lever to OFF and

call your service technician or gas supplier.

10. Move the gas control lever to ON.

11. Turn on all electric power to the furnace.

]

Position

Gas Control Lever Pilot Position

Figure 30. Standing Pilot Valve

P ILOT

BRACKET

Figure 31. Lighting The Furnace

12.SetthethermostatmodetoHEAToradesired

temperaturesettingandthenON.

WARNING:

Close the hinged fire door. if door

is left open or spring is broken it

may allow products of combustion

into the living space by the furnace

blower, resulting in possible

asphyxiation.

13. Replace the furnace door.

NOTE: In the event of any flashback or explosion,

immediately shut off the furnace and call your

service technician.

WARNING:

Should overheating occur, or the gas

supply fails to shut off, shut off the

manual gas valve to the furnace before

shutting off the electrical supply.

/L AVERTISSEMENT:

En case de temperature excessive,

ou sail est impossible de cooper

i'alimentation en gaz, fermer le

robinet manuel d'alimentation en gaz

du g_n_rateur d'sir chaud avant de

cooper i'alimentation 61ectrique.

How to Shut Off Gas -Standing Pilot

1. Set the thermostat to the lowest setting.

2. Turn off all electric power to the appliance at

the breaker or fuse box.

3. Remove the furnace door.

4. Push in the gas control lever and move to the

left to the OFF position. DO NOT FORCE!

5. Replace the furnace door.

Operating instructions for Direct ignition

IVlodels IVllIVl

Direct ignitionfurnaces do not have a pilot, ignition

is accomplished by a silicon carbide hot surface

ignitor. A control module takes care of all timing

functions. After lighting, the control module uses

the ignitor as a flame sensor, shutting off gas

should the flame go out. There are no external

relays or timing devices. Do not try to light this

furnace by hand. The control module is not

field serviceable.

1. Set the thermostat to the lowest setting.

2. Turn off all electric power to the appliance.

3. Remove the furnace door and turn off the gas

valve:

. Honeywell: push in and turn the gas control

knob clockwise to OFF (Figure 32)

. Robertshaw: push the gas control lever to

the OFF position (Figure 33). Do not force!

4. Wait ten (10) minutes to clear out any gas. If

you smell gas, STOP! and follow the Safety

information on page 19. If you do not smell

gas, proceed to next step 5.

5. Set the thermostat MODE the ON position.

6. Turn the gas valve ON:

. Honeywell: push in and turn gas control

knob counter-clockwise to ON (Figure 32).

. Robertshaw: push the gas control lever to

the ON position (Figure 33). Do not force!

7. Replace the furnace door.

8. Turn on all electric power to the appliance.

9. Change the thermostat mode to HEAT and the

temperature selector to a desired temperature

level. The igniter should light in approximately

75 seconds. If the appliance will not operate,

see "How To Shut Off Gas - Direct Ignition" and

call your service technician or gas supplier.

NOTE: Inthe event of any flashback or explosion,

immediately shut off the furnace and call your

service technician.

GAS CONTROL KNOB

Figure 32. Direct ignition

Gas Valve - Honeywell

Gas Control Lever

Figure 33. Direct ignition

Gas Valve -Robertshaw

How to Shut Off Gas - Direct Ignition

1. Set the thermostat to the lowest setting.

2.Turn off all electric power to the appliance

before servicing unit.

3. Set the furnace On-Off Switch to OFF.

o Honeywell (Figure 32):Turn gas control knob

clockwise to OFF, Robertshaw (Figure 33):

Push the gas control lever to OFF.

For oil, shut off all valves.

4. Replace the furnace door.

Operating instructions for Oil Gun Furnaces

If your furnace model number begins with M5S*,

the furnace is equipped with an ignition device

which automatically lights the burner. Do not try

to light this furnace manually.

1. Open all valves in the oil line.

2. Verify the fire door is closed.

3. Set the furnace On-Off switch to ON.

4. Set the thermostat to the desired setting.

NOTE: M5 oil gun furnaces may be converted to

gas gun in the field by using the proper conversion

kit listed in the RPL.

Operating instructions for Gas Gun Models

If your furnace model number begins with M1 B,

the furnace does not have a pilot. Ignition is

accomplished by a silicon carbide hot surface

ignitor. A control module takes care of all lighting

and timing functions. There are no external

relays or timing devices. Do not try to light this

furnace by hand. The control module is not

field serviceable.

1. Before operation, smell for gas all around the

furnace, especially near the floor because

some gases are heavier than air and will settle

on the floor. If you detect gas, STOP and follow

all the safety instructions.

2. Set the thermostat to the lowest setting.

3. Turn off all electric power to the appliance.

4. Turn off the gas valve:

Honeywell: push in the gas control knob

and turn clockwise to OFF (Figure 32).

Robertshaw: push the gas control lever to

OFF (Figure 33).The lever cannot be placed

in the off position unless it is pushed in

slightly. DO NOT FORCE!

5.Wait ten minutes to clear out any gas. If

you smell gas, STOP! and follow the safety

information. If gas is not detected, proceed to

the next step.

6. Set the furnace On-Off switch to the ON

position.

, Honeywell: turn knob on gas control counter

clockwise to ON.

, Robertshaw: push the gas control lever to

ON.

7. Turn electric power to the appliance ON.

8. Set the thermostat to H EAT and/or the desired

temperature setting. The furnace should light

in approximately 45 seconds. If the appliance

will not operate, follow the instructions "How to

Shut Off Gas - Direct Ignition Furnace" (page

21) and call your service technician or gas

supplier.

In the event of any flashback or explosion,

immediately shut off the furnace and call your

service technician.

How to Shut Off Gas- Oil & Gas Gun

1. Set the thermostat to the lowest setting.

2. Turn off all electric power to the appliance at

the breaker or fuse box.

3. Set the thermostat MODE switch to OFF.

4. Turn the gas valve OFF:

o Honeywell: push in and turn the gas control

knob clockwise to the OFF position (Figure

32).

. Robertshaw - push the gas control lever to

the OFF position (Figure 33).

5. Replace the furnace door.

NOTE: M1 B gas gun furnaces may be converted

to oil gun in the field by using the proper

conversion kit listed in the RPL

Burner Adjustments

Burner settings are made at the factory. However,

these settings may change during shipping,

handEing, and instaEEation.The following items

should be checked and readjusted if necessary.

Gas Pressure

The gas pressure can be checked with a

manometer at the pressure tap located on the

side of the gas valve. The gas valve pressure

regulator can be adjusted by removing the

regulator selector stack and turning the slotted

insert located directly under the selector stack.

The regulator selector stack must be secured

in place before each pressure reading is taken.

Natural gas manifold pressure should be 3.5"

W.C. and L.R gas manifold pressure should be

10" W.C. Replace the gas pressure tap plug on

the gas valve.

Pilot Flame (Standinq Pilot Only)

The pilot flame can be adjusted by turning the

pilot adjustment screw, located on top of the

gas valve (See Figure 30, page 20). The pilot

flame height should be between 3/4" and 1."The

flame tip should be visible just above the pilot

bracket when viewed through the observation

door. The same pilot orifice is used with both

natural and LP gas.

CombustionAir

Inorderfortheflameto burnefficiently,it must

receiveadequatecombustionair.Theamount

of combustionair requiredvariesaccordingto

altitude,actualB.T.U.contentof the fuel,gas

pressure,conversionto anothergasandother

factors.Theburnerflameshouldbeobserved

andanynecessaryadjustmentsmadebefore

thefurnaceisplacedintoservice.SeeTable7

for FactoryAirsettings.

CAUTION:

•,Combustion air adjustment must

be made only by a qualified tech=

nician. Improper air adjustment

may cause unsafe operation, ex=

plosion and/or fire asphyxiation.

,,if the input to the furnace is too

great because of excessive gas

pressure, wrong size nozzle or

orifice, high altitude, etc., the

burner flame will be sooty and

can produce carbon monoxide,

which could result in unsafe

operation, explosion and/or fire

or asphyxiation.

Model Nat. Gas LP Gas Oil

66,000 3.5 3.5 3.5

86,000 5.3 6 5

Table 7. Factory Combustion Air Settings

Gas Gun

Combustion air box adjustment is made to the

main burner by loosening the two lock nuts on

the plastic air shutter, located on the left side of

the burner blower housing. Air sh utter adjustment

line is located on the same side of the blower

housing. Turn the plastic shutter to a smaller

number (counter clockwise) for less air to a larger

number (clockwise) for more air. Gently tighten

the lock nuts after completing the adjustment. For

best results, use instrument to measure between

8-9% CO 2, after the combustion air has been

adjusted. Note: Do not over-tighten the lock nuts.

This may damage the plastic air shutter.

The Smoke should be NO. 0 on the Bacharach

Scale, and 0 to 0.02 negative draft over fire.

Electrode Setting (Oil Gun Only)

Poor ignition of the oil spray may result if the

electrodes are not adjusted as shown in Figure

34. Do not permit any electrodes to be grounded

to any surface.

Switching ignition Control between

interrupted and intermittent Duty (Oil Gun

Only)

Honeywell and Beckett oil primary controls can

be switched between interrupted and intermittent

ignition control. To switch from interrupted duty

(Factory set) to intermittent duty, remove the blue

wire from the quick-connect terminal. Attach the

burner motor and igniter wire to the burner motor

(orange) control terminal by splicing or adding

tab adapters. Seal and isolate any bare wires.

GAPI.._._ ELECTRODE

•,,='-==1 1/8"----._

]

b--

Figure 34. Oil Gun electrode Position

Oil Gun Only

It is recommended that the CO 2and Smoke levels

be measured for maximum performance. CO 2

readings should be 10 -11% for 66,000 BTUH

furnaces and 12-13% for 86,000 BTUH furnaces.

OPERATING SEQUENCE

Standing Pilot

1 On a caJl for heat, the thermostat contacts

close, supplying 24 VAC to the gas vaJve.When

energized, the valve steps open at a reduced

flow and opens fully within 14 seconds.

2.When the call for heat is satisfied, the

thermostat contacts open, shutting off gas flow.

Standing Pilot w/Induced Draft Blowers

1.On a call for heat, the thermostat contacts

close, supplying 24 VAC to the relay.

2. The relay contacts close and the induced draft

motor energizes.

3.When the inducer starts, the air pressure

switch closes at -0.20 W.C. differential pressu re

and energizes the gas valve. The valve steps

open at a reduced flow and opens fully after

approximately 14 seconds.

4.When the call for heat is satisfied, the

thermostat contacts open, the gas valve shuts

off gas flow, and the induced draft blower stops.

M1M Models with Direct Ignition

1.On a call for heat, the thermostat contacts

close, supplying 24 VAC between terminals

C and W of the control module.

2. When the inducer starts, the air pressure switch

closes at -0.20 W.C. differential pressure and

energizes the gas valve.

3. After a 45 second purge, the ignitor is energized

for a 30 second warm-up period. After warm

up, the gas valve opens. NOTE: The time for

ignition is approximately 6 seconds, after which

the gas valve either remains open if flame is

sensed, or closes if flame is not sensed.

5. If flame is not sensed, the sequence repeats

four more times before a lockout occurs. To

reset, wait 30 seconds and then interrupt the

24 VAC power by turning the room thermostat

below room temperature, then returning it to

the original set point.

6. If flame does not establish on the 5th attempt

(initial fire + 4 re-tries), the control de-energizes

the gas valve, the red LED flashes 4 times,

and the furnace locks out heat operation for

1 hour. See Table 9 (page 29).

7. If a flame is present, the control energizes the

main blower on heat speed 30 seconds after

the gas valve opens.

8. When call for heat is satisfied the thermostat

contacts open, the gas valve shuts off gas flow

and the combustion blower remains on for a

30 second post-purge period.

9. The main blower is de-energized after a 120

second blower off delay.

Oil Gun Furnace with Honeywell R7184 /

Beckett 7505 Control - M5S Models

1. When a call for heat is initiated, there is a 2

to 6 second delay while the control performs

a safe start check.

2. The ignition and motor are turned on and a

flame should establish within a 15-second

lockout time. NOTE: Burner will prepurge for 15

seconds if equipped with Honeywell R7184B

or Beckett 7505B Control.

3. If flame is not sensed within the 15-second

lockout time, the control shuts down on safety

lockout and must be manually reset by pushing

the reset button on the control. If control locks

over three times in a row, the control enters

restricted lockout. To reset Honeywell R7184:

Hold down the reset button for 45 seconds

until the LED flashes once. Beckett 7505: Hold

down reset button for 15 seconds until the red

LED turns off and the yellow LED turns on.

WARNING:

If furnace still doesn't light, turn

the furnace off as described above

and call your technician. In the

event of flashback or explosion,

immediately shut off furnace and

call your service technician.

4. After flame is established, the ignition remains

on for 10 seconds to ensure flame stability. It

then turns off.

5. The circulating air blower will energize after

the temperature fan switch closes.

6.The furnace runs until the call for heat is

satisfied.

7. The circulating air blower will de-energize when

the temperature fan switch opens.

Gas Gun Models

1. On a call for heat, the furnace control begins

an ignition sequence which lasts approximately

45 seconds.

2. After this sequence, the control module tests

to see if flame is sensed. If it has, the furnace

continues to heat until the thermostat is

satisfied.

3. If the burner has not lit, the ignition sequence

is repeated a maximum of two more times. If

flame is not sensed after three attempts, the

control enters Lockout and no further attempts

to light the burner will occur. If Lockout occurs,

contact a qualified service technician for

assistance.

4.Whencallforheatissatisfied,thethermostat

contactsopenandthegasvalveshutsoffgas

flow.

WARNING:

Should overheating occur, or the gas

supply fails to shut off, shut off the

manual gas valve to the furnace before

shutting off the electrical supply.

/k AVERTISSEMENT:

En case de temperature excessive,

ou sail est impossible de cooper

i'alimentation en gaz, fermer le

robinet manuel d'alimentation en gaz

du g_n_rateur d'sir chaud avant de

cooper i'alimentation 61ectrique.

FURNACE CONTROLS &FUNCTIONS

Furnace On-Off Switch

This switch turns electrical power to the furnace

on and off. The switch must be set in the ON

position for the furnace to operate. For M1G

models, in warm weather there is a possibility

of the blower turning on periodically or operating

continuously due to a heat buildup within the

furnace by a combination of warm weather and

heat from the pilot. This is normal operation as

long as there is power to the furnace and the

furnace On-Off switch is in the ON position. If

blower operation is not desired, the furnace On-

Off switch may be set in the OFF position to cut

the electrical power to the furnace. See Figure 35.

Limit Control

This furnace is protected by two high temperature

safety limit switches. The auxiliary (upper) limit

switch and the high temperature (lower) limit

switch are automatic reset types. If either limit

trips, the burner will shut off. If either limit switch

trips off again soon after resetting, set the furnace

furnace On-Off switch to the OFF position and

call your authorized serviceman. See Figure 35.

Gas Valve

The gas valves for the gas furnaces are a 100%

shut-off type and will fail safe, if for some reason

the gas is turned off. The valve is a "step-open"

type for M1G models and "slow-open" for M1M

and M1B models which means it opens to a

low-fire position, and after a few seconds, "steps-

open" to high-fire.

Roll Out Switch (M1G - 056 & 070)

The furnace is protected by a manual reset safety

switch located on the bottom left hand side of

the combustion pipe.

Oil Burner Primary Control

The primary control for oil gun furnaces starts

the burner, monitors a safe operating cycle, and

shuts the burner off at the end of a heating cycle.

The control uses a light sensing transducer to

determine if fuel ignition has been successfully

attained. If ignition is not attained by the end of

the safety ignition timing period, the control shuts

the burner off and enters"lock-out." See Figure 35.

Summer Cooling - (B, C, & DSeries)

Your furnace is A/C ready, equipped with A/C

relay and transformer. The unit is equipped to

use a 4-wire thermostat. When using a 5-wire

thermostat, RC and RH should be jumped (see

instructions included with thermostat).

Upper

Limit

Switch \

Furnace

On-Off

Switch

Oil

Pump

_r:::::[_

_°

Lower

Limit

-*Switch

_ Fan

Control

_Oil

Burner

Control

Figure 35. Furnace Controls - Oil Furnace

TROUBLESHOOTING

Standing Pilot Models

Main Burner Does Not Ignite

1. Check the electrical supply to the furnace.

2. Verify the furnace furnace On-Off switch is in

the ON position.

3. Check for proper thermostat operation.

4. Check for broken or open thermostat wires.

5. Verify the insulation located on the inside of

the front panel is glued securely around the

fan switch and the limit switch.

6. Shut off the electrical supply to the furnace

and remove the electrical box cover.

7. Check for a defective transformer or blown

fuse.

8. Check electrical circuit for proper grounding,

polarity, and make sure the electrical

connections are tight.

9. Check the limit switches. Did they fail to close?

10. Replace the electrical box cover and restore

electrical power to the furnace. Turn the

furnace On-Off switch to ON and raise the

thermostat setting above room temperature.

11. Check for 24 VAC at the gas valve. Replace

the valve if the pilot is established and it

does not open when powered with 24 volts.

Powered (24 VAC) Gas Valve - No Main Flame

1. Verify the manual shut-off valve is OFF.

2. Check the pilot flame. It must be established.

3. Check the gas valve control lever. It must be

in the ON position.

4. Check incoming gas pressure.

5. Replace the gas valve if the main burner does

not come on under the above conditions.

Pilot Will Not Light or Goes Out

1. Check the incoming gas pressure.

2. Check for the proper pilot orifice. See

specifications on the furnace nameplate.

3. Check for proper pilot flame adjustment. See

Burner Adjustment section (page 22).

4. Verifythe thermocouple millivoltage. If reading

is not between 18 - 30 my., the gas valve

electromagnet may be defective. Replace the

gas valve if necessary.

5. Verify the pilot shield is in place.

6. Check for gas leaks (page 18).

7. Check the flue assembly for air leaks.

8. See lighting procedures (pages 20 - 22).

Main Flame Is Not Burning Properly

1. Check the manifold gas pressure.

2. Check for the correct main burner orifice. See

furnace nameplate for specifications.

3. Check the flue for any blockages or loose

connections.

4. Check the combustion air passages for

blockage.

High Gas Bills

a. Verify the proper orifices are being used.

b. Check the return air system. Is it clear and

free of blockage?

c. Check the furnace filter. Is it clean or need

replacing?

d.Verify the home is insulated, windows and

doors fit tightly, and there are no leaks in the

heating duct system.

e. Check the room thermostat. Is the setting

higher than necessary? Low humidity requires

higher temperatures for the same level of

comfort. Check for proper humidity level in the

home.

Direct ignition Furnaces including Gas Gun

M1B Series (see Table 9, page 29)

Burner Motor won't Run - T-stat Calls for Heat

1. Check the electrical supply to the furnace.

2. Verify the furnace furnace On-Off switch is in

the ON position.

3. Defective thermostat circuit - white and red

thermostat low voltage leads (M1/M5M,

M1/M5B models). If the burner motor or

combustion fan runs, check:

.Thermostat connections

.Thermostat

4. No voltage to control module - determine if 24

volts (or 120 volts) is available to the control

module. If voltage is not available check for:

.Blown fuse, defective transformer, circuit

breaker, no electrical supply.

.Limit switch open.

.Loose connections.

Combustion Blower Runs - No Flame

1. Defective centrifugal switch (M1 B Model).

.Check the operation of centrifugal switch

by removing end bell of the burner motor.

.Clean contacts of motor.

.Ifthe contacts are closed, replace the motor.

2. Defective pressure switch (M1 M & M1G - 077,

090 Models) - check air tube and electrical

connections.

3. Burner in purge mode - allow 75 seconds for

flame establishing period.

4. Check for proper electrical connections at

purge timer, control box, or gas valve.

5. Check for gas supply- gas line valve on, control

lever on.

Control Module is Powered - Ignitor won't Heat

1. Disconnect ignitor leads atAMP receptacle and

check for 120 volts at the plug during ignition

sequence.

2. Replace ignition control if 120 volts is not

available at AMP plug during ignition sequence.

120 VAC Is Available At AMP Plug_:___lnitor

Does Not Heat Up

1. Disconnect power to the furnace.

2. Disconnect AMP plug to the ignitor, and check

ignitor resistance with an ohm meter. Set on

RX1 scale.

, Normal reading should be 40 - 75 ohms.

, If above or below this rating at room tem-

perature change ignitor.

3. Check for continuity from ignitor receptacle to

burner.

Main Flame Ignites - Burner Locks Out

, Ignition control is not properly grounded.

, Defective ignition control.

, Improper polarity of 120 volt power supply.

, Ignitor has hairline crack.

, Improper gas pressure or burner air adjustment

is not allowing flame to contact ignitor tip for

flame rectification.

, Misaligned ignitor does not allow flame to

contact ignitor tip for flame rectification.

Burner Short Cycling - Thermostat Calls for

Heat, Limit Switches Closed

, Check for polarity.

, Check ground.

, Check flue.

, Check combustion air.

o Check gas pressure.

o Check orifice.

, Checkthe position of ignitor, a normal reading

should be 40-75 ohms.

24 Volts Supplied To Gas Valve During__lglnition

- No Main Gas Flow

Gas valve may be defective. Replace if

necessary.

, Gas piping may be plugged. Check for

adequate gas supply to gas valve at union.

Burner Operates - Insufficient Heat

, Check thermostat for proper setting and

location. Thermostat should not be located

where it will be affected by another heat source.

o Check for clean filter and proper air flow.

, Check burner for proper gas firing rate.

, Be sure unit is not undersized for its thermal

load.

, Check thermostat anticipator. The nominal

setting is 0.4.

Burner Flame Without Motor Running

Gas valve stuck open, check gas valve for

proper operation (replace if necessary) and

inspect heat exchanger.

o Check for 115 volts to the combustion blower

motor; replace if necessary.

, If no power to combustion blower then check

wiring and control module; replace if necessary.

Circulation Air Blower Will Not Operate Even

Though The Burner Does Operate

, Check thermostat G connection.

, Check wiring to motor.

, Check for a defective motor.

Oil Gun -Honeywell R7184 or Beckett 7505

Controls Only -IVISSSeries.

Burner does not start with a call for heat.

o Check the electrical supply to furnace.

, Verify the furnace door switch is in the ON

position.

, Check for line voltage (115 VAC) at the oil

primary control.

, Check indicator LED with burner off, no call

for heat (no flame). See Table 9 (page 29).

If green LED indicator is on, the cad cell is

seeing stray light or the cad cell of controller

is defective.

If green LED indicator is off, go immediately

to step 5.

If LED indicator is flashing (red or green on

Beckett 7505 control), refer to the next step

1 below - Reset primary control.

, Jumper T to T terminals on primary control.

If burner starts, check thermostat or limit

wiring connections.

If burner does not start, turn off power. Check

all wiring connections.

If burner does not start, replace primary

control.

Burner starts and then locks out on safety

with Honeywell R7184 LED indicator flashing

1/2second on, 1/2second off. For Beckett 7505

control, the red LED will flash.

.Reset primary control: To reset the control

from (soft) lockout, the button needs only to be

pressed and released. If the R7184 control is

in restricted mode, press and hold the button

for 45 seconds - until the LED flashes once. If

the 7505 control is in restricted mode, press

and hold the button in for 15 seconds until the

red turns off and the yellow LED turns on.

NOTE: Restricted Lockout: If the control locks

out three times in a row without a complete heat

cycle between attempts, the lockout becomes a

restricted (hard) lockout.

2. If the LED indicator stops flashing and the

ignition remains off, the primary control could

be defective. If line voltage is present at the

igniter terminals, and there is no ignition,

the igniter is likely defective and needs to be

replaced.

3. If the stops flashing, burner turns on, but the

control locks out again, check the cad cell. If

thecadcellisoperational,replacetheprimary

control.

4.If the LEDcontinuesto flashat the interval

listedabove,verifythatthecontrolis notin

restrictedmode.Ifinrestrictedmode,resetit.

If notinrestrictedmode,replacethecontrol.

5.Ifthe(LEDindicatorforR7184control;green

LEDfor7505control)staysoffwhiletheflame

is on,checkthecadcellsightingforviewof

theflame.

6.If the burnerlocksout, checkthe cadcell

resistance.(SeeTable8)

7.If the burnerstaysrunning,the systemis

operational.

8.Ifthe(LEDindicatorforR7184control;green

LEDfor7505control)isoff,checkthecadcell

assemblyafterdisconnectingthelinevoltage.

Burner will not start and the LED indicator is

flashing at 2 seconds on, 2 seconds off for

R7184 (or the green LED is flashing for 7505).

. Hold the reset button down for 1 - 2 seconds.

If LED indicator continues to flash, wait for

60 - 70 seconds. If it still continues to flash,

replace the primary control.

,Honeywell R7184 control: To check cad cell

resistance, press and release the button during

the run mode, with the igniter off.The LED will

flash to indicate the cad ceEEresistance. For

proper burner operation, it is important that

the cad cell resistance is under 1600 Ohms.

For cad cell resistance, see Table 8.

,Beckett 7505 control: To check cad cell

resistance, unplug the cad cell leads (yellow

wires) from the control. Measure the resistance

with a meter in the conventional way (when a

flame is present). For proper burner operation,

it is important that the cad cell resistance is

under 1,600 Ohms.

LED Flashes (Ohms)

Cad Cell Resistance

0-400

400-800

800-1600

>1600

Table 8. Cad Cell Resistance when

sensing flame

OPTIONAL ACCESSORIES

Necessary when the Furnace is Used with

Some Central Air Conditioners

If an air conditioner is installed that does not use

the furnace blower for air distribution and operates

independently of the furnace, the thermostat

system must have an interlock to prevent the

furnace and air conditioner from operating at

the same time. This interlock system usually

contains either a "Heat-Cool" switch which must

be turned to one of the positions to activate heat

or cool operation, or a positive "OFF" switch on

the cooling thermostat.

The furnace must also be equipped with an

automatic damper to prevent cold air from

being discharged up around the heat exchanger

(NORDYNE p/n 901996 for furnaces without coil

cavity, or p/n 901083 with coil cavity). See Figure

36 or 37. Cold air may cause condensation inside

the heat exchanger which can rust and lead to

early failure.

Figure 36. Coil Cavity Damper

Figure 37. Damper without Coil Cavity

Control Module Status Indicators -M1M Series

Red LED Indicator Status

Steady ON Control OK

Steady OFF No power

Rapid flash False flame or internal control fault

One flash Limit switch is open

Two flashes Pressure switch is open

Three flashes Pressure switch is stuck closed

Four flashes Lockout due to failed ignition

Five flashes L1 neutral reversed or L1 voltage not present on L1

Flame Status -A Yellow LED labeled "Flame" is provided to indicate flame status. When flame

is sensed, the flame LED is lit. If flame sense is weak, yellow LED will flash.

Control Module Status Indicator -M1 B

Red LED Indicator

One flash

Status

The control is in lock-out because the inducer centrifugal switch is or

was stuck closed.

The control is in lockout because the signal was not received by the

Two flashes control that the inducer centrifugal switch had closed within the time.

Three flashes

Fourflashes

The control is in lockout because a failed ignition attempt, a gas valve

error, or a false flame sensed during the warm up period. If false flame

has been sensed, the control will return to normal operation, and repeat

ignition sequence when the false flame is not present.

The control is in lockout due to a failure within the control board

Control Module Status Indicator - M5S Series

The LED indicator(s) on the oil primary control provides lockout, recycle and cad cell indications.

Honeywell R7184 Control

Green LED Indicator Status

On Cad cell is sensing flame (could be flame or stray light)

Off Cad cell is not sensing flame

Flashing - 1/2 sec. on, 1/2 sec. off Lockout/Restricted Lockout

Flashing -2 sec. on, 2 sec. off Recycle

LED Indicator Color

Red

Green

Yellow

Table 9. Control Module Status Indicators

Beckett 7505 Control

On Continuously

Restricted (hard) lockout

Cad cell is sensing flame -

(could be flame or stray light)

Pump prime mode or reset

button currently held for 15+ sec.

Flashing

Soft lockout

Recycle

N/A

OPTIONALADD-ON AIR CONDITIONING

Whether split system or single package, an

energy-saving NORDYNE Air Conditioner is

available that has been designed specifically

for manufactured housing applications and can

best handle your home comfort needs. Ask your

dealer or contractor about NORDYNE add-on

central air conditioning systems.

Single package unit includes cooling coils,

compressor, and vertical discharge fan .This type

of unit connects with the existing home air duct

system (an optional close-off damper is required

with the furnace).

Split system unit with vertical discharge for quiet

operation connects with NORDYNE cooling coil

furnace (optional coil cavity required with "A"

model furnaces).

MAINTENANCE

Homeowner Information

, On some closet installations, the return air

opening to the furnace may be on the floor,

in the door, in the side wall of the closet, or

any combination of these. The upper grille on

the front of the furnace admits return air to the

blower. Return air must be provided back to

the circulating blower in order to provide air

distribution. See Figure 38.

. Filters - At least twice each season (more often

in dusty areas) remove and clean the air filters

with a vacuum or with warm water and soap.

Reinstall when dry. Also clean dust and lint

around furnace and in the furnace vestibule.

.During extremely cold weather, ice may form

on the furnace roof jack (Figure 39). Small

amounts of ice forming on the roof jack

will present no problems to proper furnace

operation. Excessive ice formation could

restrict the combustion air supply to the

burner, causing inefficient burner operation.

If excessive ice has formed on the air inlet or

exhaust portions of the roof jack, it must be

carefully removed.

Installer Information

All furnaces need periodic service at the

beginning of each heating season. Call your

serviceman to:

.Remove the air circulator and clean all dust

and lint from the unit with a stiff bristle brush.

.Inspect the combustion chamber blower

compartment, flue collar and Roof Jack.

.Check the gas valve (if applicable) and fuel

line connections for leaks.

.Make any adjustments necessary for good

operation.

WARNING:

Use of furnace or air conditioning

components that are not included

in the certification of this appliance

may create a hazard, invalidate

the certification, and in many

states, make installations illegal.

Listed NORDYNE air conditioning

components are specified on the

furnace label.

Additional Oil Furnace Maintenance

In addition to the preceding, the following should

be performed by a qualified service contractor

at least once each season for oil-fired furnaces:

.Replace the oil nozzle with the type nozzle

specified for your furnace.

.Clean, adjust and replace if necessary the

spark electrodes.

. Reset the nozzle/drawer assembly to factory

specifications.

Clean the inside of the furnace heat exchanger

and replace the combustion liner if necessary.

Clean or replace the oil filter element at the

oil tank.

.Adjust the burner for top efficiency and check

to make sure all fittings are leak-tight.

Figure 38. Periodic Cleaning

Check for ; .... .

Figure 39. Roof Jack

(y)

_ ilmmlmmwilml_llilmmmmwilml _ mmllmlmillml____ __

Furnace Input Output Orifice No E.S.P, Pilot Ignitor Comb. Motor A/C Ready

Model No MBtu/h MBtu/h Nat. LP InWC Burner Direct Blower Hp Tons

M1GB 056 56 45 29 45 0.3 x 1/4 3

M1GB 070 70 57 24 42 0.3 x 1/4 3

M1GB 077 77 62 21 40 0.3 x x 1/4 3

M1GB 090 90 72 17 36 0.3 x x 1/4 3

M1MB 056 56 46 29 45 0.3 x x 1/4 3

M1MC 056 56 46 29 45 0.3 x x 1/2 4

M1MB 070 70 57 24 42 0.3 x x 1/4 3

M1MC 070 70 57 24 42 0.3 x x 1/2 4

M1MB 077 77 62 21 40 0.3 x x 1/4 3

M1MC 077 77 62 21 40 0.3 x x 1/2 4

M1MB 090 90 72 17 36 0.3 x x 1/4 3

M1MC 090 90 72 17 36 0.3 x x 1/2 4

M1BB 066 66 53 26 43 0.3 x x 1/4 3

M1BC 066 66 53 26 43 0.3 x x 1/2 4

M1BB 086 86 68 18 37 0.3 x

M 1BC 086 86 68 18 37 0.3 x

_ __limmmimlmmmm ___

M5SB 066 66 56 .50 Gph 0.3 x

M5SC 066 66 56 .50 Gph 0.3 x

M5SB 086 86 73 .65 Gph 0.3 x

M5SC 086 86 73 .65 Gph 0.3

x 1/4 3

x 1/2 4

Burner Model: 1/4 3

AF-10 1/2 4

Spray Angle: 1/4 3

x 80° A 1/2 4

NOTES:

Electrical Supply -120 volts, 60HZ, 1 Ph.

Fuse or Breaker - 15 amps

Temperature Rise - 45 ° F to 75 ° F

High Altitude -See Table 12 (page 32). For

Canadian Altitudes (2,000' to 4,500'), reduce the

gas manifold pressure to 3.0" W.C. for natural gas

and to 8" W.C. for LP gas.

,, Thermostat Circuit - 24 volts, 60HZ, 30 vac

,, Normal Anticipator Setting -0.4

• Manifold Pressure -Natura( Gas: 3.5" w.c.

LP Gas: 10" w.c.

FURNACE ORiFiCE SIZE AND ALTITUDE =FEET

SEA

MODEL OUTPUT CAPACITY LEVEL 2,000 3,000 4,000 5,000 6,000 7,000 8,000 9,000 10,000

Orifice Size - Nat. Gas 29 29 30 30 30 30 31 31 31 32

M1M/M1G OiiiiceSize- [P 45 46 47 47 47 48 48 49 49 50

- 056

Orifice Size -Nat. Gas 24 25 26 27 27 28 28 29 29 30

M1 M/M1G Oiifice Size [[P 42 42 43 43 43 44 44 45 46 47

-070 Oyt£_tzMBTLI _ 56.7 52.3 50.2 48.2 46.2 44.4 42.6 40.9 39.3 37.7

Orifice Size - Nat. Gas 21 23 23 24 25 26 27 28 28 29

M1M - 077 Orifice Size - LP 40 41 42 42 42 43 43 44 44 45

Oytput: IVIB!UU 61.7 56,9 54.6 52.4 50.3 48.3 46.4 44.5 42.7 41.0

Orifice Size - Nat. Gas 21 23 23 24 25 26 27 28 28 29

M1G - 077 Orifice Size - LP 40 41 42 42 42 43 43 44 44 45

Oytput: [VIBTUH 59.9 55.2 53.0 50.9 48.9 46.9 45.0 43.2 41.5 39.8

Orifice Size - Nat. Gas 17 18 19 19 20 21 22 23 24 26

M1M - 090 Orifice Size - LP 36 37 38 38 39 40 41 41 42 43

QytpNt: [VIBTUH 71.7 66,] 63.5 60.9 58.5 56.1 53.9 51.7 49.7 47.7

Orifice Size - Nat. Gas 17 18 19 19 20 21 22 23 24 26

M1G - 090 Orifice Size - LP 36 37 38 38 39 40 41 41 42 43

Out_)ut-MBTUH 69.7 64.2 61.7 59.2 56.8 54.6 52.4 50.3 48.3 46.3

Orifice Size - Nat. Gas 26 27 28 28 28 29 29 30 30 30

M1B - 066 Orifice Size - LP 43 44 44 44 45 45 46 47 47 48

Output-MBTUH 52.6 48.5 46.6 44.7 42.9 41.2 39.6 38.0 36.5 35.0

Orifice Size - Nat. Gas 18 19 19 20 21 22 23 24 26 27

M1B - 086 Orifice Size - LP 37 38 39 39 40 41 42 42 43 43

Output-MBTUH 68.2 62.9 60.3 57.9 55.6 53.4 51.2 49.2 47.2 45.3

NOTES: For Canadian high altitude (2,000 - 4,500'), reduce gas manifold pressure to 3.0" W.C. for

natural gas and 9" W.C. for LP gas. (Includes 4% Input Reduction for Each 1,000 Feet). These specs

do not apply to oil furnace installations. Reference Sources: ANSI Z233.1 & NFPA 54, National Fuel

Gas Code. Table 11. Equivalent Orifice Sizes for High Altitude Installations

MI/M5*B Models and for use with Blower Kit No. 903773 114 Hp 3Speed

Furance Input Heating Speed Cooling Speed/Evap Coil

Setting 2 Ton 2-1/2 Ton 3 Ton

086, 090 H L M H

066, 070, 077 M L M H

56 L L M H

MI/M5*C Models and for use with Blower Kit No. 903413 112 Hp 4Speed

Heating Cooling Speed/Evap Coil

Furance Input Speed 2Ton 2-1/2 Ton & 3Ton 3-1/2 Ton 4Ton

Setting

077, 086, 090 ML L ML MH H

056, 066, 070 L L ML MH H

MI/M5*D Models & for use with Blower Kit No. 903890 314 Hp 4Speed

Heating Cooling Speed/Evap Coil

Furance Input Speed 2Ton 2-1/2Ton & 3Ton 3-1/2Ton & 4Ton

Setting

077, 086, 090 ML L ML MH

056, 066, 070 L L ML MH

5Ton

Table 12. A/C Blower Speed Selection Chart

GASiNFORMATiON

CUBIC FEET PER

TiME FOR REVOLUTION

ONE REVOLUTION OF GAS METER

(SECONDS) 1 5 10

10 360 1,800 3,600

i2 300 1;500 3,000

14 257 12,86 2,571

16 225 1,125 2,250

18 200 1,000 2,000

20 " 180 900 11800

22 164 818 1,636

24 " 150 750 11500

26 138 692 1,385

.... 28 ....... 129 643 1;286

30 120 600 1,200

32 113 563 1,125

34 106 529 1,059

36 100 " 500 li000

38 95 474 947

40 " 90 450 900

42 86 429 857

44 : 82 409 818

46 78 391 783

48 '75 375 750

50 72 360 720

52 " 69 346 692

54 67 333 667

56 64 321 643

58 62 310 621

60 60 300 600

62 58 290 581

64 = 56 281 563

Table 13. Gas

CUBIC FEET PER

TiME FOR REVOLUTION

ONE REVOLUTION OF GAS METER

(SECONDS) L 1 5 10

66 55 273 545

.... 68 53 265 529

70 51 257 514

72 50 250 500

74 49 243 486

76 47 237 474

78 46 231 462

80 = 45 225 450

82 44 220 439

84 43 214 429

86 42 209 419

88 41 205 409

90 40 200 400

92 39 196 391

94 38 191 383

96 38 188 375

98 37 184 367

100 36 180 360

102 35 176 353

104 35 173 346

106 34 170 340

108 33 167 333

110 33 164 327

112 32 161 321

114 32 158 316

116 " 31 '155 310

118 31 153 305

120 ' 30 150 300

Flow Rates (Cubic Feet per Hour)

NOMINAL BLACK IRON

PiPE DIAMETER (IN.)

½130

LENGTH OF PiPE RUN (FT)

20 30 40 ' 50 60' 70 80

90 75 65 55 50 45 40

130 115 105 95 90

1 520 350 285 245 215 195 180 170

11_ 1;050 ' 730 590 500 440 ' 400 ' 370 350

1 ½ 1,600 1,100 890 760 670 610

Input To Furnace (Btu/hr)

Cubic Feet Per Hour Required = Heating Value of Gas (Btu/Cu. Ft.)

NOTE: The cubic feet per hour listed in the table above must be greater than the cubic feet

per hour of gas flow required by the furnace. To determine the cubic feet per hour of gas flow

required by the furnace, divide the input rate of the furnace by the heating value (from gas

supplier) of the gas.

Table 14. Capacity of Black iron Gas Pipe (cu. ft. per hour)

for Natural Gas w/Specific Gravity = 0.60

NOTES

I. Incoming power must be polarized. Observe

color coding. (See furnace data label for

electrical information.)

2. If any of the original wires (as supplied with

the appliance) must be replaced, use I05_C

Thermoplastic type wire or its equivalent.

Elm =

NEUTR.AL

SUPPLIED

BY INSTALLER

GROUND

SCREW

_i _i ®_ ......

_1 _I t

COMMON

CONNECTOR. FOR OPTIONAL

HOUSING CAP %_, ACCESSORY KITS

IIUIUIUliIUIU_

BLACKII WH,TE

AUX. LIMIT

BLUE

FAN ON/AUTO SWITCH

BLACK

TRANSFC

ORANGE

WHITE

GRAY

II I' FURNACEELECTRICALBOX

[_GASVALVE

HI'LIMIT

I BLACK

BLUE

[]

]

FIELD 115V: ....... ]

FIELD 24V:

MANUAL RESET

VENT SWITCH

703887B

(Replaces 703887A) 02199

LI--

NEUTRAL--

NOTES

1. Incoming power must be polarized. Observe

color coding. (See furnace data label for

electrical information.)

2. If any of the original wires (as supplied with

the appliance) must be replaced, use 105°C

Thermoplastic type wire or its equivalent.

]

CONNECTORJIIIIIIIll

HOUSING CAP

BLACK

BLUE

_ GRAY

BLACK

IIIIIII

]

WHITE

AUX. LIMIT

BLUE O

BLUE

BLACK

SUPPLIED BY

INSTALLER

GROUND

SCREW

ORANGE

WHITE

GRAY

L_BUSHIN GGAS VALVE

FAN ON/AUTO _|

L,...,,....J

SWITCH

TRANSFC

GRAY _I'

RMER _V_D

L_W_ITE

BLACK

BLUE

FURNACE ELECTRICAL BOX

[

LEGENDS

115V:

24V:

FIELD 115V:

FIELD 24V:

703888C

(Replaces 703888B)

02199

NOTES \MG{BLCFoRjWER}

1. Incoming power must be polarized. Observe color HEATING/ _ .._\

coding. (See furnace data label for electrical COOLING _"l_ --\

information.)

2. If any of the original wires (as supplied with the

appliance) must be replaced, use 105°C

Thermoplastic type wire or its equivalent.

NEUT_L

ON/OFF

SWJ.IT._

o o

SUPPLIED

BY INSTALLEI

_1_£1 _J_ _ ............

:_i_j ,,cil = ."J /'-

CONNECTOR Ll121:L41sl6] I/_=

._SIN GCAP""----__

II NR,-L,_

BLACK

BLUE I_1 TR/_NSF(:

GREEN J

GROUND SCREW

LEGENDS

115V: FIELD 115V:

24V: FIELD 24V:

AUX. LIMIT

BLUE @_

BLUE

BLOWER

RELAY

WHITE

GRAY z

RMERI/_I''

LI_'_ N

ORANGE

I BLACK

GRAY

BLUE

HEATING/COOLING

•1-1"1-1w

I • I I

_=-,_,_, ,

_ _,zl ='

_,,_'=,=_,=,-_'

=t,=!o! _,

MANUAL RESET

VENT SWITCH

__=_G BLUE

FURNACE ELECTRICAL BOX

*M1G(C,D) Heating - replace orange wire with red wire (low speed)

MIGB 070 Heating - replace orange wire with blue

A/C & Heating Speeds: Refer to Table 10, NC Blower Selection in the manual

INOTE: To run at same speed in both heating and cooling mode, I

AS VALVE remove wire from either terminal 4 or 6 on the relay, then attach

jumper to terminals 4 and 6.

7101500 8/00

(Replaces 7101030)

IIIIIIIIIIIIIIIIIIIIIIIIIIII

-q

=t3

,<_

O'o

v i

NEUTR-AL'

NOTES

1. Incoming power must be polarized.

Observe color coding. (See furnace

data label for electrical information.)

2. If any of the original wires (as supplied

with the appliance) must be replaced,

use 105°C Thermoplastic type wire or

its equivalent.

¢)

SUPPLIED

BY INSTALLEI

GROUND

SCREW

LEGENDS

115V: FIELD 115V:

24V: FIELD 24V:

COMBUSTION

BLOWER

RELAY GRAY

RED* .

WHITE

BLACK

ORANGE

GREEN

ORANGE

AUX. LIMIT

BLUE

wi "_,

i=i,,,

Mw -LI/liT

_BLACK

GRAY_ _II

RANSF RMER/ U

I WHITE

IBLACK

BLACK

BLUE

[

GRAY

E_G BLUE

FURNACE ELECTRICAL BOX

* Jumper Wire - MIGB 090 Units Only A/C & Heating Speeds: Refer to

Otherwise Hi-Speed Connected Table 10, A/C Blower Selection

AS to Blower Relay (Black) in the manual

UVALVE " MIGB 077 Heating: Orange wire

replaced by Blue

- MIGB 090 Heating: Orange wire

replaced by Black

HEATING/COOLING

_ON FAN

IPRESSURE

,%H

7101510 08/00

(Replaces 7101040)

IIIIIIIIIIIIIIIIIIIIlllIIIll

(30

NOTES

1, Incoming power must be polarized, Observe color

coding. (See furnace data label for electrical

information.)

2. If any of the original wires (as supplied with the

appliance) must be replaced, use 105°C Thermoplastic

type wire or its equivalent.

ONIOFF

NEUTRAL _--- _ WHITE.....

ROUND SCREW

BLACK

IGNITOR

LEGENDS

115V: -- FIELD 115V:

24V: FIELD 24V:

CONNECTOR

HOUSING CAP

TIE

WIRE Ii\.\ See Table

See Table

BLACK

GREEN

I I

CONTROL

_LIGHTS

_'HC

BLUE

AUX. LIMIT

BLUE

It BLUE

\\\

TRANS=

FORMER

24 V

..... 9 c

L1 N

15V

BLACK H}TB

BLACK I

ORANGE IBLACK

ORANGE

GAS VALVE in the manual

FAN

Blower Wire Connections

Furnace Wire #1 Wire #2 Wire #3 Wire #4

Model Red Black Blue Orange

M1MA 056/ Tie Tie Tie Control

07010771090 Wrapped Wrapped Wrapped Board "H'

MIMB Tie Control Tie Control

056 Wrapped Board "C' Wrappec Board "H"

MIMB Tie Tie Control Control

0701077 Wrapped Wrapped Board"H' Board"C"

MIMB Tie Control Tie Tie

90 Wrapped Board "H' Wrappec Wrapped

MIM(C,D) Control Tie Tie Control

0561070 Board"H" Wrapped Wrappec Board"C"

M1M(C,D) Tie Tie Tie Control

077/090 Wrapped Wrapped Wrappec Board"H"

Blower Wire Table

FURNACE ELECTRICAL BOX

\\ CONTROL LIGHT STATUS

Jumper must be removed if RED

convelting to a meltispeed blower. Steady ON Control OK

Jumper is required for M1MA Steady OFF No power

models aod M1MB 090 Rapid Flash False flame or internal control fault

1 Flash Limit switch is open

NO &Heating Speeds: Refer to 2 Flashes Pressure switch is open with inducer on

Table 10, NO Blower Selection 3 Flashes Pressure switch is closed with inducer off

4 Flashes Lockout due to failed ignition

5 Flashes 115 vac & neutral reversed or no ground

YELLOW

Steady ON Good Flame Signal

Blinking Weak Flame Signal

Steady OFF No Flame Signal

710152B 4/02

(Replaces 710152A)

I11IIIIIIIII11111IIIIIIIIII

M1B & M5S Furnace Series 120 Volt Single Phase/60 Hz

NOTES:

I. Incoming power must be polarized. Observe color coding.

(See furnace data label for electrical information.)

2. If any of the original wires (as supplied with the appliance) must

be replaced, use IOB°C Thermopla stic type wire or its equivalent.

3. On models MI (B,S)A and MI (B,S)086 jumper wire is installed.

On all other models, cooling speed is connected to black wire.

--4

NEUTRAL J

o----I°

4. A/C Heating Speeds: Refer to Table 11, A/C Blower Selection

5. If any of the original wire supplied with the appliance is replaced,

use 1osoc wire ol equivalent

B. Use copper conductors only.

ON/OFF

SUPPLIED

BY INSTALLER

==L--

GROUND

SCREW

TIE WIRE

RED

BLUE

- BLACK

\i 2. ORANGE

GREEN

GRAY

BLACK

TRANSFORMEF

BLACK

ORANGE

WHITE

AUX. LIMIT

BLUE

CONNECTOR >-

HOUSING CAP

GRAY z

kl N

BLUE

FAN

SWITCH

GAS GUN BURNER

_TERM,NAL HOUSING BUSHING_ H __

/ _ .......... i L._ BLACK-

J .....................

BLUE BURN_

GAS VALVE _'_(ITEM #12)

OIL GUN BURNER

FROM 'R' WIRE (RED_

FROM 'W' WIRE (BLUEk

_OT

CAD

CELL

7RO5B

R7184B

PRIMARY

CONTROL

IGNITER

MOTOR

LI"

L2"

VALVE-

L2-

BLUE W/WHITESTRIPE_

WHITE

ORANGE

WHITE

BLACK [_

BLACK W/WHITE STRIPE

LINE CORD

VIOLET

FURl.ACE _]]ELECT_CAL BOX 'E_

# c w

RECEPTACLE

LEGEND: III!11111111111111111111!!11

FIELD WIRING ] 7109990

LOW VOLTAGE (Replaces 710971 A)

HIGH VOLTAGE _ 0909

iNSTALLATiON /PERFORMANCE CHECK LIST

INSTALLER NAME:

CITY STATE

INSTALLATION ADDRESS:

CITY STATE

UNiT MODEL #

UNIT SERIAL #

Minimum clearances per YES NO

Table 1 (page 5)?

Has the owner's information

been reviewed with the YES NO

home-owner?

Has the literature package YES NO

been left near the furnace?

CUS

We Encourage

Professionalism

ThroughTechnician

Certification by NATE

Electrical connections tight? YES NO

Line voltage polarity correct? YES NO

Supply Voltage: VOLTS

Has the thermostat been YES NO

calibrated?

Is the thermostat level? YES NO

Is the heat anticipator setting YES NO

correct?

Natural

Gas Type: (circle one) Gas Propane

Gas pipe connections leak YES NO

tested?

Gas Line Pressure: (in - W.C.)

Is there adequate fresh

air supply for combustion YES NO

and ventilation?

Installation Altitude:

Deration Percentage:

Furnace Input:

Supply Air Temperature:

Return Air Temperature:

(FT.)

(%)

(Btuh)

(°F)

Temperature Rise: (oF_

Vent free from restrictions?

Filter(s) secured in place?

Filter(s) clean?

Flue connections tight?

Is there roer draft?

YES NO

NORDYNE

COMPL_E COMFORT.GENUINEVALUE,

O'Fallon MO

IIIIIIllllllllllllliilIllII!

709123A

709123A (Replaces 7091230)

Specifications & illustrations

subject to change without

notice or incurring obligations.

Printed in U.S.A. (04/10)

Nordyne M1BB086 User Manual FURNACE Manuals And Guides 1012604L

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