Goodman GMVM, ACVM, GCVM, AMVM Service Instructions Manual

Service Instructions

96% Modulating Gas Furnaces

ACVM, AMVM, GCVM, GMVM

& Accessories

This manual is to be used by qualified, professionally trained HVAC technicians only. Goodman does
not assume any responsibility for property damage or personal injury due to improper service
procedures or services performed by an unqualified person.

is a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company, L.P., Houston, TX. All rights reserved.

Copyright © 2011 - 2013 Goodman Manufacturing Company, L.P.

RS6612001r9

November 2013

1

TABLE OF CONTENTS

IMPORTANT INFORMATION ........................... 2-3

PRODUCT IDENTIFICATION ........................ 4 - 7

ACCESSORIES........................................... 8 - 10

LIGHTING INSTRUCTIONS ...............................11

PRODUCT DESIGN ...................................12 - 31

OPERATION ...............................................32 - 56

COMFORTNET™ SYSTEMS............................58

ABBREVIATIONS & DEFINITIONS ....................59

ABBREVIATIONS & OPERATION .....................60

SERVICE AND OPERATION......................61 - 62

OPERATIONAL CHECKS ..........................63 - 64

MAINTENANCE ..................................................65

SERVICING TABLE OF CONTENTS ................66

SERVICING .................................................67 - 74

TROUBLESHOOTING................................75 - 79

STATUS CODES...............................................80

IMPORTANT INFORMATION

Pride and workmanship go into every product to provide our customers with quality products. It is possible, however,
that during its lifetime a product may require service. Products should be serviced only by a qualified service technician
who is familiar with the safety procedures required in the repair and who is equipped with the proper tools, parts, testing
instruments and the appropriate service manual. REVIEW ALL SERVICE INFORMATION IN THE APPROPRIATE

SERVICE MANUAL BEFORE BEGINNING REPAIRS.

IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS

RECOGNIZE SAFETY SYMBOLS, WORDS AND LABELS

WARNING

T

O PREVENT THE RISK OF PROPERTY DAMAGE, PERSONAL INJURY, OR DEATH,
DO NOT STORE COMBUSTIBLE MATER IALS OR USE GASOLINE OR OTHER
FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPL IANCE.

WARNING

G

OODMAN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES.

I

F YOU INSTALL OR PERFORM SERVICE ON THIS UNIT, YOU ASSUME RESPONSIBILITY FOR ANY PERSONAL INJURY OR P ROPERTY DAMAGE WHICH

MAY RESULT.

M

ANY JURISDICTIONS REQUIRE A LICENSE TO INSTALL O R SERVICE HEATING AND A IR CONDITIONING EQUIPMENT.

HIGH VOLTAG E
D

ISCONNECT ALL POWER BEFOR E SERVICING OR

INSTALLING THIS UNIT.
BE PR ESENT.
DAMAGE, PERSO NAL INJURY OR DEATH.

2

WARNING

MULTIPLE POWER SOURCES MAY

FAILURE TO DO SO M AY CAU SE PROPERTY

IMPORTANT INFORMATION

Speci al Wa r ning for Inst allation of Furnace or Air Handling Units in
Enclosed A reas such as Garage s, Utility Ro oms or Parki ng A r eas

Carbon monoxide producing devices (such as an automobile, space
heater, gas water heater, etc.) should not be operated in enclosed areas
such as un ve n tilated garages, ut ility rooms or parking areas because of
the danger of car bon monox ide (CO) poisoning resulting from the exhaust
emissions. If a furnace or air handler is installed in an enclosed area such
as a garage, utility room or parking area and a carbon monoxide producing
device is operated therein, there must be adequate, direct outside
ventilation.

This ventilation is necessary to avoid the danger of CO poisoning which
can occur if a carbon monoxide producing device continues to operate in
the enclosed area. Carbon monoxide emissions can be (re)circu l a ted
throughout the structure if t he furnace or air han dler is operating in any
mode.

CO can cause serious illness in clud ing per man e nt brain dama ge or deat h.

To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this
product. For further assistance, please contact:

CONSUMER INFORMATION LINE
GOODMAN® BRAND PRODUCTS

TOLL FREE

1-877-254-4729 (U.S. only)

email us at:

[e-mail]

fax us at: [phone]

(Not a technical assistance line for dealers.)

(Not a technical assistance line for dealers.) Your telephone company will bill you for the call.

is a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company, L.P., Houston, TX. All rights reserved.

CONSUMER INFORMATION LINE

AMANA® BRAND PRODUCTS

TOLL FREE

1-877-254-4729 (U.S. only)

email us at:

[e-mail]

fax us at: [phone]

(Not a technical assistance line for dealers.)

Outside the U.S., call 1-713-861-2500.

3

PRODUCT IDENTIFICATION

The model and manufacturing number are used for positive identification of component parts used in manufacturing.
Please use these numbers when requesting service or parts information.

GMVM960603BXAA

PRODUCT
TYPE:

G: G oodman
A: Amana

Brand

®

SUPPLY TYPE

M: Upflow/Horizontal
C : Downflow/Hori z ontal

FURNACE TYPE

V: Variable-Speed

COMMUNICATION FEATURE

M: Modulating Furn ac e
4-Wir e Comm unic ation Re ady

NOMINAL INPUT

060: 60,000 Btuh
080: 80,000 Btuh
10 0: 100,000 B tuh
11 5: 115,000 B tuh

AFUE

96 : 96%

AIRFLO W
CAPABILITY
@ 0.5" ES P

3: 120 0
4: 160 0
5: 200 0

CABINET
WID TH

B: 17-1/2"
C: 2 1"
D: 2 4- 1/2 "

MAJOR
REVISION

A: Initial Release

MINOR
REVISION

A: Initial R elease

ADD IT IO NAL
FEAT URE S

N: Natural Gas
X: Low NOx

is a registered trademark of Maytag Corporation or its related companies and is used under license to Goodman Company, L.P., Houston, TX. All rights reserved.

4

PRODUCT IDENTIFICATION

MODEL # MFG. # DESCRIPTION

, Downflow/Horizontal Left and Right, 40" tall,

same as AA revision above, but BA revision

Upflow/Horizontal Left or Right, 40" tall, Induced

same as AA revision above, but BA revision

ACVM96******

ACVM96******

AMVM96******

AMVM96******

ACVM96******AA

ACVM96******BA

AMV M96******AA

AMV M96******BA

Amana® Brand 96% M odulating Gas Furnace

Induced Draft, ClimateTalk™ communicating furnace. Modulating gas input fr om 35% -100% of
rated input. 4 wire serial ECM motor. Independent humidification with capable thermostat.

Amana® Brand 96% M odulating Gas Furnace,

models furnace cabinet Air Leakage must be <2.0%.

Amana® Brand 96% M odulating Gas Furnace,

Draft, ClimateTalk™ communicating furnace. Modulating gas input fr om 35% -100% of rated input.
4 wire serial ECM motor. Independent humidification wit h capable thermostat.

Amana® Brand 96% M odulating Gas Furnace,

models furnace cabinet Air Leakage must be <2.0%.

MODEL # MFG. # DESCRIPTION

GCVM96******

GCVM96******

GM VM96******

GM VM96******

GCVM96******AA

GCVM96******BA

GMVM 96******AA

GMVM 96******BA

Goodman® Brand 96% Modulating Gas Furnace

Induced Dra ft, ClimateTalk™ communicating furnace. Modulating gas input from 35% -100% of
rated input. 4 wir e serial ECM motor . Independent humidification with capable thermostat.

Goodman® Brand 96% Modulating Gas Furnace

models furnace cabinet Air Leakage must be <2.0%.

Goodman® Brand 96% Modulating Gas Furnace,

Induced Dra ft, ClimateTalk™ communicating furnace. Modulating gas input from 35% -100% of
rated input. 4 wir e serial ECM motor . Independent humidification with capable thermostat.

Goodman® Brand 96% Modulating Gas Furnace

models furnace cabinet Air Leakage must be <2.0%.

, Down flow/Horizontal Left and Right, 40" tall,

, same as the AA revision above but BA

Upflow/Horizon ta l Left or Right, 40" tall,

, same as the AA revision above but BA

5

PRODUCT IDENTIFICATION

MODEL # MFG # DESCRIPTION

The AFE18-60A control is designed for use wher e the indoor c oil is loc ated above/downst ream

. F or use with current ar c hit ec tural grey Goodman® and Amana® Br and 96% variable speed,

. F or use with current ar c hit ec tural grey Goodman® and Amana® B rand 96% variable

AFE18-60A

AMU1620
AMU1625
AMU2020
AMU2025

GMU162 0
GMU162 5
GMU202 0
GMU202 5

ASAS-10
ASAS-11
ASAS-12
ASAS-18

N/A

P1251305F
P1251306F
P1251307F
P1251308F

N/A

P1251301F
P1251302F
P1251303F
P1251304F

Foss il Fuel Kit.

of a gas or fossil fuel furnace when used wit h a heat pump. I t will operate with single and t wo stage heat
pumps and single and two st age furnaces. The AFE18-60A control will turn the heat pump unit off when t he
fur n ace is turned on. A n a nti-short c ycle featur e in itiates a 3 minute timed off dela y when the compressor goes
off.

Media Air Cleaner

modulat i ng f urnac e models. The Amana (AMU*) and Goodman ( GMU*) Media A ir Cleaner is a high efficiency
air filtration device designed to remov e d irt, d ust , pollen and other microscopic parti c les from the air pa ssing
through it. Flexible perf or mance range up to 2,000 CF M capacity. The air cleaner should be installed in the
system so that all the system air is c irculated through the air cleaner. T he air c leaner will only r emov e the
airbor n e c o ntaminants delivered t o i t. Maximum performance is obt a ined wh en the syste m blower is set for
continuous operation. Carbon filter s (optional) are available.

Electronic Air Cleaner

speed, modulating f ur nace models. The High-Efficiency E lectronic Air Cleaner is designed t o r emov e air
contaminants down t o .01 microns. Carbon filters (optional) remove odors. Dual indicat or lights show unit
operation at a gla nc e . Electronic prov ing swit ch cycles the air cleaner On/Off w ith the system fan. D urable
po wder-coat pa int finish resists corrosio n.

CFB17

CTK01

CTK01BA

CTK02**

CTK03A*

P1228004F

CTK01AA

CTK01BA

CTK02**

CTK03A*

Do wn flow Subb ase Kit

are available for the following f u r na ce widths: 17 .5" wide (CFB17), 21" wid e (CFB21) and 24" wid e (CFB24).
The kits must be used to preve nt ex cessive t emper ature f rom reaching co mbustible mate rials, if the fur n ace is
installed on a co mbustible floor. T his subbase eff ec tiv ely separat ed the fur nac e base and plenum f rom
combust ible materials. To ensure safe inst allat ion, do not install the c ount er flow floor base directly on
carpeting, tile, or other combustible mat erial other than wood flooring.

Co mmu n icating T hermostat K i t

communicat ing sy stem. Designed for use wit h compatible Amana® B rand or Goodman® Brand Air Handlers
or Furnaces and outdoor split A C or H eat P ump units. This thermostat supports up to three stages of heat, t wo
stages of cooling, dual fuel applications, dehumidific at ion, filter maintenance reminders, outdoor temperat ur e
display and advanc ed menus inc luding diagnostics. The CTK01AA k it includes a communicating t ouchscreen
thermo st at and sub base, 230V-24V 40va transformer, terminal blocks( 2 ), wire j umpers,
mounting sc rews, installation manual and homeowner guide.

Co mmu n icating T hermostat K i t

communicat ing sy stem. Designed for use wit h compatible Amana® B rand or Goodman® Brand Air Handlers
or Furnaces and outdoor split A C or H eat P ump units. This thermostat supports up to three stages of heat, t wo
stages of cooling, dual fuel applications, dehumidific at ion, filter maintenance reminders, outdoor temperat ur e
display and advanc ed menus inc luding diagnostics. The CTK01BA kit includes a communicating t ouc hscreen
thermo st at and sub base, t ermi nal blo cks(2), mount i ng scre ws, i nst alla tion manual and homeowner guid e.

Co mmu n icating T hermostat K i t

system. Designed for use wit h c ompatible A mana® Brand or G oodman® Brand A ir Handlers or Furnaces and
outdoor split A C or Heat Pump units. The CTK02** thermostat features full color, high definition display ,
advanc ed programming opt ions including humidific at ion control & heat and cool maximum temperat ur e
sett ings, a U S B pl ug allo win g de alers the ability to insert pre-progra mmed operating paramete r s and deal er
information by use of an online data entry system.

Co mmu n icating T hermostat K i t

for use with compatible Amana® Brand or Goodman® Brand A ir Handlers or Furnaces and outdoor split AC or
Heat P u mp units. The CTK03A* the r mostat features full c ol or hi gh de finition di splay, c a n b e used with
RedLINK wir eless accessories.

. For use with Goodman®, & Amana® Brand modulating furnace models. These kits

- Digitally communicating touchscreen thermostat, a necessar y part of any

- Digitally communicating touchscreen thermostat, a necessar y part of any

- Digitally communicating thermost at, a necessary part of any communic ating

- Digitally communicating touchscreen thermost at from Honeywell. Designed

6

PRODUCT IDENTIFICATION

MODEL # MFG # DESCRIPTION

DCVK-20

DCVK-30

DEHUM1

EFR01

0170K00000S

0170K00001S

P1254001F

P1254002F

P1227801F

P1221001

P1221002F

N/A

N/A

Concentric Vent Kit

terminat ions of a dir ec t v ent furnace to be "concentrically" vent ed through a wall or roof. T his kit allows a single
penetration to support terminations for bot h the vent/flue and the combustion air intake pipe. The DCVK-2 0 ( 2")
and DCV K-30 (3") kits are certified for models listed above. See specification sheets on future models for use
of the vent kit.

Dehumidistat.

models. Wall mounted, 24 volt humidity control available as a Dehumidistat used t o r educ e the airflow in the air
condit ioning mode when necessary to lower the humidity in an occ upi ed home to prevent dew build-up
assoc iated with high humidity levels. This contr o l features a moisture-sensitiv e nylon element and also
provides positive ON-OFF settings for manual operat ion . The control is a normally closed switch that opens on
humidity rise causing the blower to switch to a lower speed to c ontrol the humidit y within the struct ure.

E xt ern al F ilter R ack Kit

modulating gas furnaces. This kit is intended t o pr ovide a location, exter nal to the f ur nac e c asing for installation
of a per manent filter. The rac k is mounted over the in door air blow er c ompart ment ar ea of either side panel,
and provide filter retention as well as a loc ation for attaching r e turn air ductwork.

Side Wall Only Concentric Vent Kit

2" - 3" v ent systems. The vent ki t must terminate outside the str ucture. This kit is NOT intended for use with
single pipe (indirect vent) installations.

Side Wall Only Concentric Vent Kit

2" vent systems. The ven t kit must ter minate outside the structure. T his kit is NOT int ended for use with single
pipe (indirect vent) installation

. F or use with Amana® Br and Modulati ng furnace models. This kit is designed to allow

For use wit h Goodman® & Amana® Br and two-stage variable speed modulating furnac e

. F or use with Goodman® and A mana® Brand 96% upflow, variable speed *M VM

. For use with 96% modulating f urn ac e models. This kit is to be used with

. For use with 96% modulating f urn ac e models. This kit is to be used with

MODE L # MFG # DESCRIPTION

LPLP03

LPKMOD060UF

LPKMOD080UF

LPKMOD100UF

LPKMOD115UF

LPKMOD060CF

LPKMOD080CF

LPKMOD100CF

RF000142

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

LP Gas Low Pressure Kit

single-stage, tw o-stage and m odulating furnaces c onverted to LP gas. The kit monitors gas line pres sure wit h
a pressure sw it ch and will open the circuit to t he gas v alve if the LP tank press ure gets low .

LP Conversion Kit

with LP orific es and modulat ing LP gas valve. New burners designed for use with LP gas are also included.

LP Conversion Kit

with LP orific es and modulat ing LP gas valve. New burners designed for use with LP gas are also included.

LP Conversion Kit

with LP orific es and modulat ing LP gas valve. New burners designed for use with LP gas are also included.

LP Conversion Kit

with LP orific es and modulat ing LP gas valve. New burners designed for use with LP gas are also included.

LP Conversion Kit

with LP orific es and modulat ing LP gas valve. New burners designed for use with LP gas are also included.

LP Conversion Kit

with LP orific es and modulat ing LP gas valve. New burners designed for use with LP gas are also included.

LP Conversion Kit

with LP orific es and modulat ing LP gas valve. New burners designed for use with LP gas are also included.

D ra in Coup ling Kit

kit prevents condensat e from get ting in the inducer an d routes the condens ate t o a drain.

. Des igned for application on Goodman® and Amana® Brand's 80% and 90%

For use with A/GMVM9603BX** furnace. The kit comes with a gas manifold equipped

For use with A/GMVM960805CX** furnace. The kit comes with a gas manifold equipped

For use with A/GMVM961005DX** furnace. The kit comes with a gas manifold equipped

For use with A/GMVM961155DX** furnace. The kit comes with a gas manifold equipped

For use with A/GCVM960604CX** furnac e. The kit comes with a gas manifold equipped

For use with A/GCVM960805DX** furnac e. The kit comes with a gas manifold equipped

For use with A/GCVM961005DX furnac e. The kit comes with a gas manifold equipped

For use when the drain/vent elbow has been removed in a horizontal left installation . This

7

ACCESSORIES

AMANA® BRAND Furnace Accessories

MODEL

NUM BER

Description

AMVM960603BX** X X X X X X

AMVM960805CX** X X X X X X

AMVM961005DX** X X X X X X

ACVM960604CX** X X X X X X X

ACVM960805DX** X X X X X X X

MODEL

NUM BER

Description

AMVM960603BX** X X XXXXX

AFE180-60A AMU / GMU ASAS / GSAS CFB17 CFB21 CFB24 CTK01* CTK02** CTK03AA

Fossil Fuel

Kit

0170K00000S 0170K00001S DCVK-20 DCVK-30 D EHUM1 EFR01

Concentric

Side Wall

Vent Kit (3")

Media

Air Cleaners

Not used in this application

Concentric

Side Wall

Vent Kit (2")

Electronic

Air Cleaner

Concentric

Vent Kit

(2")

Downflow

Subbase

17 .5"

Concentric

Vent Kit

(3")

Downflow

Subbase

21"

Dehumidistat

Downflow

Subbase

24.5"

External

Filter
Rack

Com.

Thermostat

Kit

LPKMOD­06/08/11UF

LPKMOD-

06/08/11CF

Propane

Gas

Conversion

Kit

Com

Thermostat

Kit

-M odulating,
High Def

Com

Thermostat

-M odulating,
High Def

Kit

AMVM960805CX** X X X X X X

AMVM961005DX** X X X X X X

ACVM960604CX** X X XXXXX

ACVM960805DX** X X XXXXX

Not used in this application

8

ACCESSORIES

g

g

GOODMAN® BRAND Furna ce Accessories

MODEL

NUM BER

Description

GM VM 960603B X** X X X X X X

GM VM 960805C X** X X X X X X

GMVM961005DX**XXX XXX

GM VM 961155DX** X X X X X X

GCVM960604CX** X X X X X X X

GCVM960805DX** X X X X X X X

GCVM961005DX**XXX XXXX

MODEL

NUM BER

Description

GMVM960603BX**XXXXXXXX

AFE180-60A AMU / GMU ASAS / GSAS CFB 17 CFB21 CFB24 CTK01* CTK02** CT K03AA

Fossil Fuel

Kit

0170K00000S 0170K00001S DC VK-20 D CVK-30 D EH UM1 EFR01

Concentric

Side Wall

Vent Kit (3")

Media

Air Cleaners

Not used in this application

Concentric

Side Wall

Vent Kit (2")

Electronic

Air Cleaner

Concentric

Vent Kit

(2")

Downflow

Subbase

17.5 "

Concentric

Vent Kit

(3")

Downflow

Subbase

21"

Dehumidistat

Downflow

Subbase

24.5"

External

Filte r

Rack

Com.

Thermostat

Kit

LPKMOD-

06/ 08/11UF

LPKMOD-

06/08 /11CF

Propane

Gas

Conversion

Kit

Com

Thermostat

Kit

-M odulating,
h Def

Hi

RF 000142

Drain Kit

Com

Thermostat

Kit

-M odulating,
h D ef

Hi

GMVM960805CX**XX XXXXX

GMVM961005DX**XX XXXXX

GMVM961155DX**XX XXXXX

GCVM960604CX**XXXXXXXX

GCVM960805DX**XXXXXXXX

GCVM961005DX**XX XXXXX

Not used in this application

9

ACCESSORIES

EXTERNAL FIL TER RACK (EFR01 )

Used on 96% Upflow Modulating Furnaces

CONCENTRIC VENT CONVERSION KIT ( DCVK-20

The DCVK-20 (2") or the DCVK-30 (3") is a concentric vent

kit approved with furnaces listed in this manual.
This concentric vent kit allows for vertical or horizontal vent

termination. The illustrations give a brief view of the kit and
its application.

Vent

Strap
(Field Supplied)

Combustion Air

Vent

See the section in this manual under "Vent Flue and Com­bustion Air Pipe Terminations" for more information or con­sult the Installation and Operating Instructions (IO-619*).

UNIT SIDE

PANEL

FRONT

OF UNIT

BASE

OF UNIT



 DCVK-30)



Roof Boot/Flashing
(Field Supplied)

RETURN AIR

CUTOUT AREA

Combustion Air

Vent

SLOTS IN FILTER
CLEAR SCREWS

ON UNIT

Maintain 12" (18" for Canada)
minimum clearance above highest
anticipated snow level. Maximum of
24" above roof.

BLOWER DECK

LOWER EDGE

SCREW

SCREWS

FILTER RACK ASSEMBLY

(FACE FILTER OPENING

TOWARDS FRONT

OF UNIT)

Flush to

1" maximum

Combustion Air

45 Elbow
(Field Supplied)

DCVK

(Horizontal Installation)

SIDE WALL VENT KIT (0170K00000S)

This side wall only vent kit #0170K00000S is to be used
with 2” - 3” vent systems. This kit is NOT intended for use
with single pipe (indirect vent) installations.

The vent kit must terminate outside the structure and may
be installed with the intake and exhaust pipes located side­by-side or with one pipe above the other.

See the section in this manual under "Vent Flue and Com­bustion Air Pipe Terminations" for more information or con­sult the Installation Instructions (IO-635).

Support (Field Supplied)

45 Elbow
(Field Supplied)

Vent

Combustion Air

DCVK

(Vertical Installation)

The vent kit must terminate outside the structure and may
be installed with the intake and exhaust pipes located side­by-side or with one pipe above the other.

See the section in this manual under "Vent Flue and Com­bustion Air Pipe Terminations" for more information or con­sult the Installation Instructions (IO-805).

Horizontal Installation

SIDE WALL VENT KIT (0170K00001S)

This side wall only vent kit #0170K00001S is to be used
with 2” vent systems. This kit is NOT intended for use with
single pipe (indirect vent) installations.

10

Ve rtic a l In s ta lla tio n

LIGHTING INSTRUCTIONS

FOR YOUR SAFETY

READ BE FO RE OPERATING

If you do not follow these instructions

WARNING:

explosion may result causing propertyExactly, a fire or
damage, personal injury or

loss of life.

A. This appliance does not have a pilot. It is equipped
with an ign itio n device which automatically lights
the burner. Do not try

to light the burner by hand.
B. smell all around the appliance

BEFORE OPERATING

area for gas. Be sure to smell next to the floor
settle on the floor.

WH AT TO DO IF YOU SMELL GAS

Do not try to light any appliance.
Do not touch any electric switch;
do not use any phone in your building.
Immediately call your gas supplier from a neighbor's
phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier,
call the fire department.

C. Use only your hand to push in or turn the gas control lever.
Never use tools. If the lever will not push in or turn by
hand, don't try to repair it, call a qualified service
technician. Force or attempted repair may result in a fire
or explosion.

D. Do not use this appliance if any part has been underwater.
Immediately call a qualified service technician to inspect
the appliance and to replace any part of the control
system and any gas control which has been underwater.

LIRE AVANT DE METTRE

EN MARCHELIRE

AVERTISSEMENT :

la lettre les instructions dans le presént manuel
risque de déclencher un incendie ou une explosion
entraînant des dommages matériels, des lesions
corporelles ou la perte de vies humaines.

Cet appareil ne comporte pas de veilleuse. Il est

A.

muni d'un dispositif d'allumage qui allume
automatiquement le brûleur. Ne pas tenter
d'allumer le brûleur manuellement.

B. AVANT DE LE FAIRE FONCTIONNER,

une odeur de gaz. Renifler prés du plancher, car
certains gaz sont plus lourds que l'air et
peuvent s'accumuler au niveau du sol.

QUE FAIRE S'IL Y A UNE ODEUR DE GAZ

Ne pas tenter d'allumer d'appareils.
Ne toucher à aucun interrupteur; ne pas vous servir
des téléphones dans le bâtiment.

Appelez immédiatement votre fournisseur de gaz depuis
un voisin. Suivez les instructions du fournisseur de gaz

Si vous ne pouvez rejoindre le fournisseur de gaz,

appelez le ser vice des incendies.»
C. Ne pousser ou tourner la manette d'admission du gaz
qu'à la main. Ne jamais emploer d'outil à cette fin.

Si la manette reste coincée, ne tenter pas de la
réparer; appelez un technicien qualifié. Quiconque
tente de forcer la manette ou de la réparer peut
provoquer une explosion ou un incendie.»

D. Ne pas se servir de cet appareil s'il a été plongé dans
l'eau, même partiellement. Faire inspecter l'appareil
par un technicien qualifié et remplacer toutr partie du

systéme de contrôle et toute commande qui ont été
plongées dans l'eau.»

Quiconque ne respecte pas à

er

OPERATING INSTRUCTIONS

STOP

!

STOP. "B"

"OFF"

GAS
INLET

ARRIVEE

DU GAZ

ROBINET A GAZ
MANUEL, EN POS
"ON/MARCHE"

MANUAL GAS
LEVER SHOWN
IN "ON" POS

1. Read the safety information above on
this label.

2. Set the thermostat to lowest setting.

3. Turn off all electric power to the appliance.

4. This appliance is equipped with an ignition
device which automatically lights the bur ner.
Do not try to light the burner by hand.

5. Push the gas control lever to Position.
Do not force.

6. Wait five (5) minutes to clear out any gas. Then
smell for gas, including near the floor. If you
then smell gas, Follow
in the safety. information ab ov e
on this label if you don't smell
gas, go to next step.

7. Push gas control lever
to

"ON".

8. Replace access panel.

9. Turn on all electric
power to the appliance.

10. Set thermostat to desired setting.

11. If the appliance will not operate,
follow the instructions "To Turn
Off Gas To Appliance" and call your
service technician or gas com pa ny.

TO TURN OFF GAS TO APPLIANCE

1. Set the thermostat to lowest sett ing.

2. Turn off all electric power to the appliance
if service is to be performed.

3. Push the gas control lever to Position.
Do not force.

4. Replace control access panel.

"OFF"

MISE EN MARCHE

ARRÊTEZ

1. Lisez les instructions de sécurité dans la
section supérieure de cette étiquette.

.

2. Régler le thermostat à la température la plus basse.

3. Couper l'alimentation électrique de l'appareil.

4. Cet appareil menager etant dote d'un systeme
d'allumage automatique, ne pas essayer à
allumer le brûleur manuellement.

5. Pousse le levier du contrÔle du gaz a

position.

6. Attendre cinq (5) minutes pour laisser echapper tout le

gaz. Renifler tout autour de l'appareil, y compris prés du
plancher, pour déceler une odeur de gaz. Si c'est le cas,

Passer à l'etape B des instructions de secu rite

ARRÊTEZ.

sur la portion superieure de cette etiquette.
S'il n'y a pas d'odeur de gaz, passer à l'etàpe suivante.

7. Pousse le levier du contrôle du gaz à
position.

8. Remettre en place le panneau d'accés.

9. Mettre l' appareil sous tension.

10. Régler le thermostat à la temp érature désirée.

11. Si l'appareil ne se met pas en marche, suivre les
instructions intitulées Comment couper l'admission
de gaz de l'appareil et appeler un technicien
qualifié ou le fournisseur de gaz.

"OFF/ ARRET"

"ON/MARCHE"

POUR COUPER L'ADMISSION
DE GAZ DE L'APPAREIL

1. Régle r le thermostat à la t emp ér a t ure la plus bassé .

2. Couper l'alimentation électrique de l'appareil s'il
faut procéder à des operations d'entretien.

3. Pousse le levier du contrôle du gaz à
position.
Ne pas forcer.

4. Remettre en place le panneau d'accés.

"OFF/ ARRET"

0140F00996 REV A

11

PRODUCT DESIGN

Adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace. To
ensure proper installation and operation, thoroughly read this manual for specifics pertaining to the installation and appli­cation of this product.

WARNING

TO

PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER
INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE
REFER TO THIS MANUAL
INFORMATION, CONS ULT A QUALIFIED INSTALLER, SERVICER AGENCY OR
THE GAS SUPPLIER

. FOR

ADDITIONAL ASSISTANCE OR

.

WARNING

IF

THE INFORMATION IN THESE INSTRUCTIONS IS NOT FOLLOWED

EXACTLY, A FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY

,

DAMAGE

PERSONAL INJURY OR LOSS OF LIFE

DO

NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND

LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE

.

.

WHAT TO DO IF YOU SMELL GA S:

O NOT TRY TO LIGHT ANY APPLIANCE

D



D

O NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONE



IN YOUR BUILDING

I

MMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S



PHONE

. F

F YOU CANNOT REACH YOUR GAS SUPPLIER, CALL THE FIRE

I



DEPARTMENT

I

NSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED

INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER

.

OLLOW THE GAS SUPPLIER’S INSTRUCTIONS

.

.

.

.

W ARNING

T

HIS PRODUCT CONTAINS OR PRODUCES A CHEMICAL OR CHEMICALS
WHICH MAY CAUSE SERIOUS ILLNESS OR DEATH AND WHICH ARE
KNOWN TO THE STATE OF CALIFORNIA TO CAUSE CANCER, BIRTH
DEFECTS OR OTHER REPRODU C TIVE HARM

.

WARNING

TO

PREVENT POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR

DEATH DUE TO ELECTRICAL SHOCK, THE FURNACE MUST BE LOCATED TO

,

PROTECT THE ELECTRICAL COMPONENTS FROM WATER

.

CARBON MONOX IDE POI SONING HAZARD

Spec ial Warnin g for Instal lat i on of Furna c e or A ir Ha n dl i n g Un it s in
Enclosed Areas such as Garages, Utility Rooms or Parking Areas

Carbon monoxide producing devices (such as an automobile, space
heater, g as water heater, etc.) should not be operated in enclosed areas
such as unventilated garages, utility rooms or parking areas because of
the danger of carbon monoxide (CO) poisoning resulting from the exhaust
emissio ns. If a furnace or air ha ndler is installed in an enclosed area such
as a garage, utility room or parking area and a carbon monoxide producing
device is operated therein, there must be adequate, direct outside
ventilation.

This ventilation is necessary to avoid the danger of CO poisoning which
can occur if a carbon monoxide producing device co ntinues to operate in
the enclosed area. Carbon monoxide emissions can be (re)circulated
through out the structure if t he furnace or air handler is operating in any
mode.

WARNING

H

EATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASON ABLE
ROUTINE, INSPECTION, MAINTENANCE AND SUPERVISION
BUILDING IN WHICH ANY SUCH DEVICE IS LOCATED WILL BE VACANT
CARE SHOULD BE TAKEN THAT SUCH DEVICE IS ROUTINELY INSPECTED
MAINTAINED AND MONITORED. IN THE EVENT THAT THE BUILDING
MAYBE EXPOSED TO FREEZING TEMPERATU RES AND WILL BE VACANT
ALL WATER-BEARING PIPES SHOULD BE DRAINED, THE BUILDING SHOULD
BE PROPERLY WINTERIZED, AND THE WATER SOURCE CLOSED. IN THE
EVENT THAT THE BUILDING MAY BE EXPOS ED TO FREEZING
TEMPERATURES AND WILL BE VACANT, ANY HYDRON IC COIL UNITS
SHOULD BE DRAINED AS WELL AND, IN SUCH CASE, ALTERNATIVE HEAT
SOURCES SHOULD BE UTILIZED

.

12

. IF

THE

CO can cause serious illness including permanent brain damage or death.

-

B10259-216

,

,

,

,

S

HOULD OVERHEATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF
TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE
FURNACE BEFORE TURNING OFF THE ELECTRICAL SUPPLY

W ARNING

,

.

P

OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
FIRE, EXPLOSION, SMOKE, SOOT, CONDENSATION, ELECTRICAL SHOCK
OR CARBON MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION
REPAIR OPERATION, OR MAINTENANCE OF THIS PRODUCT

WARNING

,

.

PRODUCT DESIGN

Electrostatic Discharge (ESD) Precautions
NOTE: Discharge body’s static electricity before touching

unit. An electrostatic discharge can adversely affect electri­cal components.

Use the following precautions during furnace installation and
servicing to protect the integrated control module from dam­age. By putting the furnace, the control, and the person at
the same electrostatic potential, these steps will help avoid
exposing the integrated control module to electrostatic dis­charge. This procedure is applicable to both installed and
non-installed (ungrounded) furnaces.

1. Disconnect all power to the furnace. Do not touch the
integrated control module or any wire connected to the
control prior to discharging your body’s electrostatic
charge to ground.

2. Firmly touch a clean, unpainted, metal surface of the
furnaces near the control. Any tools held in a person’ s
hand during grounding will be discharged.

3. Service integrated control module or connecting wiring
following the discharge process in step 2. Use caution
not to recharge your body with static electricity; (i.e.,
do not move or shuffle your feet, do not touch ungrounded
objects, etc.). If you come in contact with an ungrounded
object, repeat step 2 before touching control or wires.

4. Discharge your body to ground before removing a new
control from its container. Follow steps 1 through 3 if
installing the control on a furnace. Return any old or
new controls to their containers before touching any
ungrounded object.

WARNING

TO

PREVENT PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
FIRE, DO NOT INSTALL THIS FURNACE IN A MOBILE HOME, TRAILER, OR
RECR EATIONAL VEHICLE

.

Product Description

Features

General Information

The modulating furnace is part of the Goodman® brand &
Amana® brand family of communicating ready products. The
furnace may be used with conventional single or multi-stage
thermostats as well as Goodman CTK01 communicating
thermostats & CTK02** & CTK03 communicating-modulat­ing thermostats using the ClimateTalk™ communicating pro­tocol. Burner manifold pressure is controlled by negative air
pressure created by the draft inducer. Gas valve, pressure
switch assembly, and induced draft blower are linked to­gether by pneumatic tubing. The furnace features a Honeywell
gas valve capable of variable gas input rates as low as 35%
and up to 100% of rated input. Indoor air is delivered by an
Emerson UltraTech® ECM motor which bases the CFM need
off of the burner input. The modulating furnace operation is

based off of negative pressure created by the draft inducer.
The Integrated Furnace Control (IFC) receives commands
from the room thermostat. The IFC then controls the RPM of
the (3 phase) inducer by varying the frequency and voltage
to the inducer. This is known as variable frequency drive
(VFD)..

Acceptable Equipment Combinations

With CTK0* Communicating Thermostat:

1. Modulating furnace alone

2. Modulating furnace with Goodman® brand / Amana®
brand communicating split A/C or H/P unit (no sepa­rate dual fuel control is required)

3. Modulating furnace with non-communicating 1 stage
A/C split unit (can not support a 2 stage A/C or a non­communicating heat pump)

With Conventional Non-Communicating Thermostat
(Single or Multi-Stage)

1. Modulating furnace alone

2. Modulating furnace with Goodman / Amana communi­cating split A/C or H/P unit (a dual fuel thermostat or
separate dual fuel control is required for H/P)

3. Modulating furnace with non-communicating split A/C
or H/P (a dual fuel thermostat or separate dual fuel
control is required for H/P)

Product Application
This furnace is primarily designed for residential home-heat-

ing applications. It is NOT designed or certified for use in
mobile homes, trailers or recreational vehicles. Neither is it
designed or certified for outdoor applications. The furnace
MUST be installed indoors (i.e., attic space, crawl space,
or garage area provided the garage area is enclosed with an
operating door).

This furnace can be used in the following non-industrial com­mercial applications:

Schools, Office buildings, Churches, Retail stores,

Nursing homes, Hotels/motels,

Common or office areas

In such applications, the furnace must be installed with the
following stipulations:

• It must be installed per the installation instructions pro­vided and per local and national codes.

• It must be installed indoors in a building constructed on
site.

• It must be part of a ducted system and not used in a free
air delivery application.

• It must not be used as a “make-up” air unit.

• It must be installed with two-pipe systems for combus­tion air.

13

PRODUCT DESIGN

• All other warranty exclusions and restrictions apply This
furnace is an ETL dual-certified appliance and is appropri­ate for use with natural or propane gas (NOTE: If using
propane, a propane conversion kit is required).

Dual certification means that the combustion air inlet pipe is
optional and the furnace can be vented as a:

Non-direct vent (single pipe) central forced air furnace in
which combustion air is taken from the installation area or
from air ducted from the outside or,

Direct vent (dual pipe) central forced air furnace in which
all combustion air supplied directly to the furnace burners
through a special air intake system outlined in these in­structions.

This furnace may be used as a construction site heater ONLY if
all of the following conditions are met:

• The vent system is permanently installed per these in­stallation instructions.

• A room thermostat is used to control the furnace. Fixed
jumpers that provide continuous heating CANNOT be used
and can cause long term equipment damage.

• Return air ducts are provided and sealed to the furnace.

• A return air temperature range between 60ºF (16ºC) and
80ºF (27ºC) is maintained.

• Air filters are installed in the system and maintained dur­ing construction replaced as appropriate during construc­tion, and upon completion of construction.

• The input rate and temperature rise are set per the fur­nace rating plate.

• 100% outside air is provided for combustion air require­ments during construction. Temporary ducting can be
used.

NOTE: Do not connect the temporary duct directly to the
furnace. The duct must be sized for adequate combus­tion and ventilation in accordance with the latest edition of
the National Fuel Gas Code NFPA 54/ANSI Z223.1 or
CAN/CSA B149.1 Installation Codes.

• The furnace heat exchanger, components, duct system,
air filters and evaporator coils are thoroughly cleaned fol­lowing final construction clean up.

• All furnace operating conditions (including ignition, input
rate, temperature rise and venting) are verified according
to these installation instructions.

NOTE: The Commonwealth of Massachusetts requires that
the following additional requirements must also be met:

• Gas furnaces must be installed by a licensed plumber or
gas fitter.

• A T-handle gas cock must be used.

• If the unit is to be installed in an attic, the passageway to
and the service area around the unit must have flooring.

To ensure proper furnace operation, install, operate and
maintain the furnace in accordance with these installa­tion and operation instructions, all local building codes
and ordinances. In their absence, follow the latest edition of

the National Fuel Gas Code (NFPA 54/ANSI Z223.1), and/or
CAN/CSA B149 Installation Codes, local plumbing or waste water
codes, and other applicable codes.

A copy of the National Fuel Gas Code (NFPA 54/ANSI

Z223.1) can be obtained from any of the following:

American National Standards Institute

1430 Broadway

New York, NY 10018

National Fire Protection Association

1 Batterymarch Park

Quincy, MA 02269

CSA International

8501 East Pleasant Valley

Cleveland, OH 44131

The rated heating capacity of the furnace should be greater than
or equal to the total heat loss of the area to be heated. The total
heat loss should be calculated by an approved method or in
accordance with “ASHRAE Guide” or “Manual J-Load Calcula­tions” published by the Air Conditioning Contractors of America.

A copy of the CAN/CSA B149 Installation Codes can also be

obtained from:

CSA International

178 Rexdale Boulevard

Etobicoke, Ontario, Canada M9W 1R3

Location Requirements & Considerations

Follow the instructions listed below and the guidelines provided
in the Combustion and Ventilation Air Requirements section
when selecting a furnace location.

Furnace Models

The 96% AFUE modulating furnace comes in up flow / hori­zontal and down flow / horizontal models

Upflow Models

A/GMVM960603BX**
A/GMVM960805CX**
A/GMVM961005DX**
A/GMVM961155DX**

Down Flow Models

A/GCVM960604CX**
A/GCVM960805DX**

A/GCVM961005DX

14

PRODUCT DESIGN

Furnace Components
Heat Exchanger Assembly

The primary heat exchanger is a tubular type constructed of
high quality steel (stainless steel for Amana Brand, alumi­nized for Goodman) the heat exchanger assembly consists
of primary and secondary sections crimped together on a
back transition plate. The secondary heat exchanger is a
single pass coil consisting of stainless steel tubes and alu­minum fins. These stainless steel tubes are expanded on to
the aluminum fins to enhance heat transfer. Each tube in the
secondary heat exchanger contains an internal turbulator to
effectively scrub heat from the flue gases. Flue gas conden­sation takes place in the secondary heat exchanger as la­tent heat is transferred from the flue gases to heat the condi­tioned space.

Burners

Depending on the size of the furnace, each furnace will have
from three to five inshot burners. Burners are precisely con­structed of aluminized steel and designed to provide proper
ignition and flame stability. When converting the modulating
furnace to L.P. gas, the factory installed burners must be
replaced by burners that come in the L.P. kit.

Gas Manifold Assembly

Each gas manifold is fitted with the appropriate number of
#45 natural gas orifices. At 100% of gas input, each burner
will provide approximately 20,000 BTUH. The A/
GMVM951155DX models uses #43 gas orifices at 22,500
per hour. If converting to LP gas, the factory installed mani­fold assembly must be replaced by the manifold assembly
provided in the LP kit.

ECM Motor

An Emerson® UltraTech® four wire indoor fan motor provides
supply air to the conditioned space. This is the same motor
used on Goodman & Amana previous generation communi­cating furnaces.

Induced Draft Blower (IDB)

All modulating furnace models use a three phase induced
draft blower to draw flue gases through the heat exchanger.
The inducer uses ball bearings and is permanently lubricated.
This motor is driven at varying speeds by the VFD (variable
frequency drive) section of the IFC. The IFC takes typical
single phase power supplied to the furnace and converts it to
a three phase supply to operate the draft inducer at the de­sired speed. The windings of the induced draft motor will have
equal resistance +/- 5%. Normal resistance readings at room
temperature will range from 14-17 ohms. The voltage sup­plied by the IFC to drive the induced draft blower will vary
from 15-110 volts A/C between any two windings. This would
be read between any two of the three power wires between
the IFC and the induced draft blower. This voltage to the IBD
will vary between furnace models and is dependant on what
percentage of maximum fire is being called for. The power
wires are colored red, white, and black. A green colored ground
wire is also present.

Hot Surface Igniter

Modulating furnaces use a 115 volt silicon nitride hot surface
igniter. This is the familiar and reliable 0131F00008S igniter
with 17 second warm up time. At room temperature the ig­niter has a resistance range of 37 - 68 ohms. The H.S.I. is
connected electrically to the IFC by a 3/16" push-on connec­tion.

Gas Valve

Modulating furnaces use a 24 VAC pneumatically operated
gas valve by Honeywell. The valve is energized by the inte­grated furnace control on a call for heat, wired in series through
the front-cover pressure switch. The firing rate percentage is
determined by the negative pressure created by the opera­tion of the draft inducer. The gas valve is factory set and non-
adjustable in the field. Do not remove the seal covering the
regulator screws or attempt to adjust either of the regulator
screws.

Inductor Coil

Wired in series with ¾ and 1 HP ECM motors; the inductor
coil conditions the power supply to the motor, smoothing out
spikes and electrical noise. With voltage applied to one side
of the inductor coil, the output voltage to the motor should be
the same as incoming voltage.

Integrated Furnace Control (IFC)

The IFC is the main control center for the furnace. It has
many functions including;

• Receiving commands from the thermostat for heating,
and cooling, continuous fan operation.

• Receiving commands for dehumidification and humidi­fication.

• Communicating with the ECM motor for proper air de­livery to the conditioned space.

• Assuring safe ignition by checking the state of pres­sure switches and limit switches before and after igni­tion.

• Assuring safe operation by continuously monitoring the
presence of flame, the state of the pressure switches
and limit and roll out switches.

• Displays information on the dual seven segment dis­plays regarding thermostat call, air flow delivery and
fault status

• Controlling the speed of the induced draft blower by
variable voltage & frequency.

Features of the IFC:

Aux Terminals Located next to the low voltage connector,
there are two terminals labeled aux in & aux out. A factory
jumper is installed between these two terminals. As an op­tion; the jumper may be removed and the terminals wired up
to a normally closed float switch. The switch must be closed
for normal operation. If the switch is sensed open, the IFC
will:

• Terminate a call for gas heat.

15

PRODUCT DESIGN

• When the modulating furnace is installed with a com­municating thermostat and a non-communicating a/c
unit, the IFC will open the Y1 relay to turn off the con­densing unit

• Log and display an auxiliary open error code

• Once the auxiliary switch re-closes the IFC reverts
back to normal operation

Hum Terminals A pair of ¼” HUM terminals are located on
the board to power a humidifier. These are dry contacts rated
at 1 amp. A typical application of these contacts would be to
supply one of the Hum contacts with power from the L1 ter­minal and connect the remaining Hum terminal to a humidi­fier transformer primary. When used with the CTK02** or
CTK03 thermostat, these contacts will close with a call for
humidity and the furnace indoor blower will be powered at
continuous fan speed. When used with a 24 volt control sys­tem, the Hum contacts will close on a call for heat when the
induced draft blower is powered.

EAC Terminal A ¼” EAC terminal is provided. Any time the
indoor blower motor is powered, the EAC terminal will be
powered. Contact is rated for 1 amp

Flame Proving. Flame signal is continuously monitored by
the IFC. The flame rod, flame rod wire and proper grounding
are all critical to proving the presence of flame. Because of
the design of the Honeywell flame proving system, reading
flame signal with a microamp meter will not provide reliable
and consistent results and is therefore not a recommended
practice. The IFC has a built in warning (E6) if flame signal
is approaching the low threshold.

Field Test Mode This feature can be used by the service
technician to quickly bring a furnace up to high fire. Entering
field test mode will by-pass the staging routine and allow the
furnace to run at 100% of rated input. To use field test mode;
during a call for heat, press the fault recall button twice within
5 seconds, the display will change to Ft, then press and
hold the fault recall button for a few seconds until the display
flashes Ft. The furnace will stay in field test mode for 5 min­utes or until the call for heat is removed.

Dual 7 Segment Displays The modulating furnace IFC has
dual 7 segment displays to provide service information. This
information includes; present thermostat demand, CFM, and
fault codes.

Fault Recall This feature allows the service person to check
for any fault history. The board memory is capable of record­ing and storing 10 fault codes. To use this feature, the fur­nace must not have an existing thermostat call. Pressure
fault recall button from 2-5 seconds (until the display goes
blank) then release, all faults will be displayed one at a time,
beginning with the most recent, max of 3 consecutive faults
will be stored. When all errors have been displayed the dis­play returns to ON. To erase stored faults, hold the fault
recall button until the display starts flashing, then release.

WARNING

TO

PREVENT POSSIBLE EQUIPM EN T DAMAGE, PROPERTY DAMAGE
PERSONAL INJURY OR DEATH, THE FOLLOWING BULLET POINTS MUST BE
OBSERVED WHEN INSTALLING THIS UNIT

.

,

WARNING

P

OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO
FIRE, EXPLOSION, SMOKE, SOOT, COND E NSATION, ELECTRICAL SHOCK
OR CARBON MONOXIDE MAY RESU LT FROM IMPROPER INSTALLATION
REPAIR OPERATION, OR MAINTENANCE OF THIS PRODUCT

.

• Centrally locate the furnace with respect to the proposed
or existing air distribution system.

• Ensure the temperature of the return air entering the fur­nace is between 55°F and 100°F when the furnace is heat­ing.

• Provide provisions for venting combustion products out­doors through a proper venting system. Special consider­ation should be given to vent/flue pipe routing and combus­tion air intake pipe when applicable. Refer to Vent/Flue
Pipe and Combustion Air Pipe -Termination Locations for
appropriate termination locations and to determine if the
piping system from furnace to termination can be accom­plished within the guidelines given. NOTE: The length of
flue and/or combustion air piping can be a limiting factor in
the location of the furnace.

• Locate the furnace so condensate flows downwards to the
drain. Do not locate the furnace or its condensate drain­age system in any area subject to below freezing tem­peratures without proper freeze protection. Refer to Con-
densate Drain Lines and Trap for further details.

• Ensure adequate combustion air is available for the fur­nace. Improper or insufficient combustion air can expose
building occupants to gas combustion products that could
include carbon monoxide. Refer to Combustion and Ven-

tilation Air Requirements.

• Set the furnace on a level floor to enable proper conden­sate drainage. If the floor becomes wet or damp at times,
place the furnace above the floor on a concrete base sized
approximately 1-1/2" larger than the base of the furnace.
Refer to the Horizontal Applications and Considerations
for leveling of horizontal furnaces.

• Ensure upflow or horizontal furnaces are not installed di­rectly on carpeting, or any other combustible material. The
only combustible material allowed is wood.

• A special accessory subbase must be used for upright
counterflow unit installations over any combustible mate­rial (including wood). Refer to subbase instructions for
installation details. (NOTE: A subbase will not be required
if an air conditioning coil is located beneath the furnace
between the supply air opening and the combustible floor.

,

16

PRODUCT DESIGN

• Exposure to contaminated combustion air will result in
safety and performance-related problems. Do not install
the furnace where the combustion air is exposed to the
following substances:

permanent wave solutions
chlorinated waxes or cleaners
chlorine-based swimming pool chemicals
water softening chemicals
deicing salts or chemicals
carbon tetrachloride
halogen type refrigerants
cleaning solutions (such as perchloroethylene)
printing inks
paint removers
varnishes
hydrochloric acid
cements and glues
antistatic fabric softeners for clothes dryers
and masonry acid washing materials

• Isolate a non-direct furnace from an area contaminated
by any of the above substances. This protects the non-
direct vent furnace from airborne contaminants. To ensure
that the enclosed non-direct vent furnace has an adequate
supply of combustion air, vent from a nearby uncontami­nated room or from outdoors. Refer to the Combustion
and Ventilation Air Requirements for details.

• If the furnace is used in connection with a cooling unit,
install the furnace upstream or in parallel with the cool­ing coil. Premature heat exchanger failure will result if
the cooling coil is placed upstream of the furnace.

For vertical (upflow or downflow) applications, the mini­mum cooling coil width shall not be less than furnace
width minus 1”. Additionally, a coil installed above an
upflow furnace or under a counterflow furnace may be
the same width as the furnace or may be one size
larger than the furnace. Example: a “C” width coil may

be installed with a “B” width furnace.

For upflow applications, the front of the coil and fur­nace must face the same direction.

• If the furnace is installed in a residential garage, position
the furnace so that the burners and ignition source are
located not less than 18 inches (457 mm) above the floor.
Protect the furnace from physical damage by vehicles.

• If the furnace is installed horizontally, ensure the access
doors are not on the “up/top” or “down/bottom” side of the
furnace.

• Do not connect this furnace to a chimney flue that serves
a separate appliance designed to burn solid fuel.

• On Counterflow Installations, the air conditioning coil must
be downstream on the supply (positive) side of the furnace
heat exchanger.

• Counterflow Installation over a noncombustible floor. Be­fore setting the furnace over the plenum opening, ensure
the surface around the opening is smooth and level. A tight
seal should be made between the furnace base and floor
by using a silicone rubber caulking compound or cement
grout.

• Counterflow Installation over a combustible floor. If instal-
lation over a combustible floor becomes necessary, use
an accessory subbase (see Specification Sheet applicable
for your model for details.) A special accessory subbase
must be used for upright counterflow unit installations over
any combustible material including wood. Refer to sub­base instructions for installation details. Follow the instruc­tions with the subbase for proper installation.

Do not install the furnace directly on carpeting, tile, or other

combustible material other than wood flooring. (NOTE: The
subbase will not be required if an air conditioning coil is
installed between the supply air opening on the furnace
and the floor.)

CLEARANCES AND ACCESSIBILITY

*MVM96* MINIMUM CLEARNACE TO COMBUSTIBLE MATERIALS

(INCHES)

POSITION* FRONT SIDES REAR TOP FLUE FLOOR

Upflow30010C

HorizontalAlcove6040C

* = All posit ioning is determined as in st alled unit is viewed from the front.
C = I f pl aced on combust ible floor, f l oor M U ST be w ood only.
NC = For in st al l ation on non-combustible fl oor s only. A com bustible
subbase must be used f or in s t al l at ions on combustible floor in g.

*CVM96* MINIMUM CLEARNACE TO COMBUSTIBLE MATERIALS

(INCHES)

POSITION* FRONT SIDES REAR TOP FLUE FLOOR

Upflow10010NC

HorizontalAlcove6040C

* = All posit ioning is determined as in st alled unit is viewed from the front.
C = I f pl aced on combust ible floor, f l oor M U ST be w ood only.
NC = For in st al l ation on non-combustible fl oor s only. A com bustible
subbase must be used f or in s t al l at ions on combustible floor in g.

Installations must adhere to the clearances to combustible mate­rials to which this furnace has been design certified. The mini­mum clearance information for this furnace is provided on the
unit’s clearance label. These clearances must be permanently
maintained. Clearances must also accommodate an installation’s
gas, electrical, and drain trap and drain line connections. If the
alternate combustion air intake or vent/flue connections are used
additional clearance must be provided to accommodate these
connections. Refer to Vent/Flue Pipe and Combustion Air Pipe
for details. NOTE: In addition to the required clearances to com­bustible materials, a minimum of 24 inches service clearance
must be available in front of the unit.

17

PRODUCT DESIGN

TOP

TOP

SIDE SIDE SIDE

BOTTOM

BOTTOM

Upflow Counterflow Horizontal

A furnace installed in a confined space (i.e., a closet or utility
room) must have two ventilation openings with a total minimum
free area of 0.25 square inches per 1,000 BTU/hr of furnace input
rating. Refer to Specification Sheet applicable to your model for
minimum clearances to combustible surfaces. One of the venti­lation openings must be within 12 inches of the top; the other
opening must be within 12 inches of the bottom of the confined
space.

EXISTING FURNACE REMOVAL

NOTE: When an existing furnace is removed from a venting sys-

tem serving other appliances, the venting system may be too
large to properly vent the remaining attached appliances.

The following vent testing procedure is reproduced from the Ameri-

can National Standard/National Standard of Canada for
Gas-Fired Central Furnaces ANSI Z21.4,
CSA-2.3 latest edition Section 1.23.1.

The following steps shall be followed with each appliance connected
to the venting system placed in operation, while any other appliances
connected to the venting system are not in operation:

1. Seal any unused openings in the venting system;

2. Inspect the venting system for proper size and horizontal
pitch, as required by the National Fuel Gas Code, ANSI
Z223.1 or the Natural Gas and Propane Installation Code,
CSA B149.1-05 and these instructions. Determine that
there is no blockage or restriction, leakage, corrosion and
other deficiencies which could cause an unsafe condition.

3. As far as practical, close all building doors and windows
and all doors between the space in which the appliance(s)
connected to the venting system are located and other
spaces of the building.

4. Close fireplace dampers.

5. Turn on clothes dryers and any appliance not connected
to the venting system. Turn on any exhaust fans, such as
range hoods and bathroom exhausts, so they shall oper­ate at maximum speed. Do not operate a summer exhaust
fan.

6. Follow the lighting instructions. Place the appliance being
inspected in operation. Adjust thermostat so appliance
shall operate continuously.

7. Test for spillage from draft hood appliances at the draft
hood relief opening after 5 minutes of main burner opera­tion. Use the flame of a match or candle.

8. If improper venting is observed during any of the above
tests, the venting system must be corrected in accordance
with the National Fuel Gas Code ANSI Z223.1/NFPA 54
and/or National Gas and Propane Installation Code CSA
B149.1-05.

9. After it has been determined that each appliance con­nected to the venting system properly vents when tested as
outlined above, return doors, windows, exhaust fans, fire­place dampers and any other gas burning appliance to
their previous conditions of use.

If resizing is required on any portion of the venting system, use
the appropriate table in Appendix G in the latest edition of the
National Fuel Gas Code ANSI Z223.1 and/or CSA B149.1-05
Installation Codes.

THERMOSTAT LOCATION

The thermostat should be placed approximately five feet from
the floor on a vibration-free, inside wall in an area having good air
circulation. Do not install the thermostat where it may be influ­enced by any of the following:

• Drafts, or dead spots behind doors, in corners, or under
cabinets.

• Hot or cold air from registers.

• Radiant heat from the sun.

• Light fixtures or other appliances.

• Radiant heat from a fireplace.

• Concealed hot or cold water pipes, or chimneys.

• Unconditioned areas behind the thermostat, such as an
outside wall.

Consult the instructions packaged with the thermostat for

mounting instructions and further precautions.

Combustion & V entilation Air Requirements

WARNING

TO

AVOID PROPERTY DAMAGE, PERSONAL INJURY OR DEATH
SUFFICIEN T FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF
FLUE GASES MUST BE SUPPLIED
SUPPLIED INTO THE FURNACE AREA

. M

OST HOMES REQUIRE OUTSIDE AIR BE

.

Improved construction and additional insulation in buildings have
reduced heat loss by reducing air infiltration and escape around
doors and windows. These changes have helped in reducing
heating/cooling costs but have created a problem supplying com­bustion and ventilation air for gas fired and other fuel burning
appliances. Appliances that pull air out of the house (clothes
dryers, exhaust fans, fireplaces, etc.) increase the problem by
starving appliances for air.

House depressurization can cause back drafting or improper
combustion of gas-fired appliances, thereby exposing building
occupants to gas combustion products that could include car­bon monoxide.

,

18

PRODUCT DESIGN

If this furnace is to be installed in the same space with other gas
appliances, such as a water heater, ensure there is an adequate
supply of combustion and ventilation air for the other appliances.
Refer to the latest edition of the National Fuel Gas Code NFPA
54/ANSI Z223.1 or CAN/CSA B149 Installation Codes or appli­cable provisions of the local building codes for determining the
combustion air requirements for the appliances.

Most homes will require outside air be supplied to the furnace
area by means of ventilation grilles or ducts connecting directly
to the outdoors or spaces open to the outdoors such as attics
or crawl spaces.

Installation Positions

This furnace may be installed in an upright position or horizontal
on either the left or right side panel. Do not install this furnace
on its back. For upright upflow furnaces, return air ductwork
may be attached to the side panel(s) and/or basepan. For hori-
zontal upflow furnaces, return air ductwork must be attached to
the basepan. For both upright or horizontal counterflow furnaces,
return ductwork must be attached to the basepan (top end of
the blower compartment). NOTE: Ductwork must never be
attached to the back of the furnace. Contact your distributor for
proper airflow requirements and number of required ductwork
connections. Refer to “Recommended Installation Positions”
figure for appropriate installation positions, ductwork connec­tions, and resulting airflow arrangements.

FURNACE SUSPENSION

If suspending the furnace from rafters or joists, use 3/8" threaded
rod and 2”x2”x1/8” angle iron as shown in the following diagram.
The length of rod will depend on the application and the clear­ances necessary.

If the furnace is installed in a crawl space it must be suspended
from the floor joist or supported by a concrete pad. Never install
the furnace on the ground or allow it to be exposed to water.

2" 2" 3/8"

ANGLE IRON

XX

(3

PLACES

)

Horizontal Applications & Considerations

Horizontal applications, in particular, may dictate many of the
installation’s specifics such as airflow direction, ductwork con­nections, flue and combustion air pipe connections, etc. The
basic application of this furnace as a horizontal furnace differs
only slightly from an upright installation. When installing a fur­nace horizontally, additional consideration must be given to the
following:

DRAIN TRAP AND LINES

In horizontal applications the condensate drain trap is secured to
the furnace side panel, suspending it below the furnace. A mini­mum clearance of 4 3/4 inches below the furnace must be pro­vided for the drain trap. Additionally, the appropriate downward
piping slope must be maintained from the drain trap to the drain
location. Refer to Condensate Drain Trap and Lines for further
details. If the drain trap and drain line will be exposed to tempera­tures near or below freezing, adequate measures must be taken
to prevent condensate from freezing.

LEVELING

Leveling ensures proper condensate drainage from the heat ex­changer and induced draft blower. For proper flue pipe drainage,
the furnace must be level lengthwise from end to end. The fur­nace should also be level from back to front or have a slight tilt
with the access doors downhill (approximately 3/4 inches) from
the back panel. The slight tilt allows the heat exchanger conden­sate, generated in the recuperator coil, to flow forward to the
recuperator coil front cover.

Horizontal Furnace

19

1

PRODUCT DESIGN

ALTERNATE VENT/FLUE AND COMBUSTION AIR CONNECTIONS

In horizontal installations with the furnace laying on the left
hand side, the alternate vent connection may be used. In
this configuration, the internal elbow is removed The stan­dard piping connections may also be used in these posi­tions. Refer to Vent/Flue Pipe and Combustion Air Pipe for
details concerning the conversion to the alternate vent/flue
and combustion air connections.

When using the horizontal alternate vent configuration, you
must use the RF000142 vent drain kit. See following illustra­tion.

ALTERNATE ELECTRICAL AND GAS LINE CONNECTIONS

This furnace has provisions allowing for electrical and gas line
connections through either side panel. In horizontal applications
the connections can be made either through the “top” or “bottom”
of the furnace.

DRAIN PAN

A drain pan must be provided if the furnace is installed above a
conditioned area. The drain pan must cover the entire area under
the furnace (and air conditioning coil if applicable).

FREEZE PROTECTION

Refer to Horizontal Applications and Conditions - Drain Trap and
Lines.

Propane Gas/High Altitude Installations

WARNING

P

OSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH MAY
OCCUR IF THE CORRECT CONVERSION KITS ARE NOT INSTALLED
APPROPRIATE KITS MUST BE APPLIED TO ENSURE SAFE AND PROPER
FURNACE OPERATION
QUALIFIED INSTALLER OR SERVICE AGENCY

. ALL

CONVERSIONS MUST BE PERFORMED BY A

.

. THE

Recommended Installation Positions

NOTE: Alternate “vertical” piping connections can not be used

when an upflow furnace is installed with supply air discharging to
the right, or when a counterflow furnace is installed with supply air
discharging to the left. In either case, use the standard flue and
combustion air piping connections.

This furnace is shipped from the factory configured for natural gas
up to 10,000 ft. altitude. Propane conversions require the
proper LP kit to compensate for the energy content differ­ence between natural and propane gas.

LP kits include a manifold assembly, including an LP gas
valve, orifices and LP burners.

Gas

Altitude Kit

Natural None

Propane LPKMOD** ***

NOTE:

Exc ept 115,000 BTU: #43

2

Exc ept 115,000 BTU: #55

0-7 000

In Canada , gas fur nace s ar e onl y c ertified to 4500 feet.

Orifice

#45

1.25MM

1

Manifold Pressure

High Stage Low Stage

3.5" w .c. 1" w.c. None

2

10.0" w. c. 2. 6" w.c. None

Pressure

Switch

Change

Fur nace Model LP Kit

A/GMVM960603BX
A/GMVM960805CX
A/GMVM961005DX

A/GMVM961155DX

LPKMOD060UF
LPKMOD080UF
LPKMOD100UF

LPKMOD115UF

A/GCVM960604CX LPKMOD060CF
A/GCVM960805DX LPKMOD080CF

A/GCVM961005DX LPKMOD100CF

The indicated kits must be used to insure safe and proper furnace
operation. All conversions must be performed by a qualified in­staller, or service agency.

20

PRODUCT DESIGN

Vent/Flue Pipe & Combustion Air Pipe

WARNING

F

AILURE TO FOLLOW THESE INSTRUCTIO N S CAN RESU LT IN BODILY
INJURY OR DEATH
GIVEN IN THIS SECTION

. C

AREFULLY READ AND FOLLOW ALL INSTRUCTIONS

.

WARNING

U

PON COMPLETION OF THE FURNACE INSTALLATION, CAREFULLY
INSPECT THE ENTIRE FLUE SYSTEM BOTH INSIDE AND OUTSIDE OF THE
FURNACE TO ASSURE IT IS PROPERLY SEALED
SYSTEM CAN RESU LT IN SERIOUS PERSONAL INJURY OR DEATH DUE TO
EXPOSURE TO FLUE PRODUCTS, INCLUDING CARBON MONOXIDE

. L

EAKS IN THE FLUE

A condensing gas furnace achieves its high level of efficiency by
extracting almost all of the heat from the products of combustion
and cooling them to the point where condensation takes place.
Because of the relatively low flue gas temperature and water con­densation requirements, PVC pipe is used as venting material.

This furnace must not be connected to Type B, BW, or L vent or
vent connector, and must not be vented into any portion of a
factory built or masonry chimney except when used as a path­way for PVC as described later in this section. Never common
vent this appliance with another appliance or use a vent which is
used by a solid fuel appliance. Do not use commercially avail­able “no hub connectors” other than those shipped with this prod­uct.

It is the responsibility of the installer to follow the manufacturers’
recommendations and to verify that all vent/flue piping and con­nectors are compatible with furnace flue products. Additionally, it
is the responsibility of the installer to ensure that all piping and
connections possess adequate structural integrity and support
to prevent flue pipe separation, shifting, or sagging during furnace
operation.

DUAL CERTIFICATION: NON-DIRECT/DIRECT VENT

This furnace is dual certified and may be installed as a non-direct
vent (single pipe) or direct vent (dual pipe) appliance. A non-direct
vent installation requires only a vent/flue pipe, while a direct vent
installation requires both a vent/flue pipe and a combustion air
intake pipe. Refer to the appropriate section for details concern­ing piping size, length, number of elbows, furnace connections,
and terminations.

.

used. Fittings must be DWV type fittings meeting ASTM D2665
and ASTM D3311. Carefully follow the pipe manufacturer’s in­structions for cutting, cleaning, and solvent cementing of PVC.

The use of Schedule 40 PVC or ABS cellular core (Foam Core)
plastic pipe is also acceptable as a flue/vent and intake pipe
material. PVC primer meeting ASTM F656 and PVC solvent ce­ment meeting ASTM D2564 specifications must be used. Fit­tings must be DWV type fittings meeting ASTM D2665 and ASTM
D3311. Carefully follow the manufactures instructions for cutting,
cleaning and solvent cementing of PVC.

MATERIALS AND JOINING METHODS

As an alternative to PVC pipe, primer, solvent cement, and fit­tings, ABS materials which are in compliance with the following
specifications may be used. Two-or-three-inch ABS Schedule
40 pipe must meet ASTM D1527 and, if used in Canada, must be
CSA listed. Solvent cement for ABS to ABS joints must meet
ASTM D2235 and, if used in Canada, must be CSA listed. The
solvent cement for the PVC to ABS transition joint must meet
ASTM D3138. Fittings must be DWV type fittings meeting ASTM
D2661 and ASTM D3311 and, if used in Canada, must be CSA
listed. Carefully follow the manufacturers’ instructions for cutting,
cleaning, and solvent cementing PVC and/or ABS.

All 90° elbows must be medium radius (1/4 bend DWV) or long
radius (Long sweep 1/4 bend DWV) types conforming to ASTM
D3311. A medium radius (1/4 bend DWV) elbow measures 3 1/
16” minimum from the plane of one opening to the centerline of
the other opening for 2” diameter pipe, and 4 9/16” minimum for 3”
pipe.

PROPER VENT/FLUE AND COMBUSTION AIR PIPING PRACTICES

Adhere to these instructions to ensure safe and proper furnace
performance. The length, diameter, and number of elbows of the
vent/flue pipe and combustion air pipe (when applicable) affects
the performance of the furnace and must be carefully sized. All
piping must be installed in accordance with local codes and these
instructions.

Piping must be adequately secured and supported to prohibit
sagging, joint separation, and/or detachment from the furnace.
Horizontal runs of vent/flue piping must be supported every three
to five feet and must maintain a 1/4 inch per foot downward slope,
back towards the furnace, to properly return condensate to the
furnace’s drain system.

PREFERRED

WARNING

TO

AVOID BODILY INJURY, FIRE OR EXPLOSION, SOLVENT CEMENTS
MUST BE KEPT AWAY FROM ALL IGNITION SOURCES (I.E
FLAMES, AND EXCESSIVE HEAT) AS THEY ARE COMBUSTIBLE LIQUIDS

VOID BREATHING CEMENT VAPO RS OR CONTA CT WITH SKIN AND/OR

A

EYES

.

Two- or three-inch nominal diameter PVC Schedule 40 pipe meet­ing ASTM D1785, PVC primer meeting ASTM F656, and PVC
solvent cement meeting ASTM D2564 specifications must be

.,

SPARKS, OPEN

.

21

PRODUCT DESIGN

ACCEPT ABLE

TRANSITION NO LESS
THAN 45 DEGREES TO
HORIZONTA L P LANE T O
AVOID CREATING A WATER
TRAP IN VENT PIPING.

NO TRANSITION ON
HORIZONTAL PLANE,
THIS CREATES A
WATER TRAP AND
RESTRICTS FLUE
GASES

Precautions should be taken to prevent condensate from freezing
inside the vent/flue pipe and/or at the vent/flue pipe termination.
All vent/flue piping exposed to temperatures below 35°F (2°C)
for extended periods of time must be insulated with 1/2” thick
closed cell foam. Also all vent/flue piping exposed outdoors in
excess of the terminations shown in this manual (or in unheated
areas) must be insulated with 1/2” thick closed cell foam. In­spect piping for leaks prior to installing insulation.

TERMINATION LOCATIONS

NOTE: Refer to Location Requirements and Considerations for

combustion air contaminant restrictions.
The following bullets and diagram describe the restrictions con-

cerning the appropriate location of vent/flue pipe and combustion
air intake pipe (when applicable) terminations. Refer to Non-Di-
rect Vent (Single Pipe) Piping and Direct Vent (Dual Pipe) Piping
located in this section for specific details on termination con­struction.

• All terminations (flue and/or intake) must be located at
least 12 inches above ground level or the anticipated snow
level.

• Vent terminations (non-direct and direct vent) must termi­nate at least 3 feet above any forced air inlet located within
10 feet.

NOTE: This provision does not apply to the combustion
air intake termination of a direct vent application.

• The vent termination of a non-direct vent application must
terminate at least 4 feet below, 4 feet horizontally from, or
1 foot above any door, window, or gravity air inlet into any
building.

• The vent termination of a direct vent application must ter­minate at least 12 inches from any opening through which
flue gases may enter a building (door, window, or gravity
air inlet).

• The vent termination of vent pipe run vertically through a
roof must terminate at least 12 inches above the roof line
(or the anticipated snow level) and be at least 12 inches
from any vertical wall (including any anticipated snow build
up).

• A vent termination shall not terminate over public walk­ways or over an area where condensate or vapor could
create a nuisance or hazard or could be detrimental to the
operation of regulators, relief valves, or other equipment.

• The combustion air intake termination of a direct vent ap­plication should not terminate in an area which is frequently
dusty or dirty.

Non-Direct Vent

&

Direct Vent

Vent/ F lue Terminations

Non-Direct Vent

Vent/Flue Termination

No Terminations
Above Walkway

4' min.

4'

min.

Grade or Highest

Anticipated
Snow Level

Forced Air

Inlet

12" min.

Vent /F lue Termi nation

Direct Vent

12" min.

Non-Direct Vent

Vent/ F lue Termin at ion

Vent Termination Clearances

NOTE: In Canada, the CAN/CSA B149 Gas Installation Code

takes precedence over the preceding termination restrictions.

22

PRODUCT DESIGN

V
X

v

DIRECT VENT TERMINAL CLEARANCES

A= Clearance above grade,

veranda, porch, deck o r
balcony. (See 1.24.6-i(9)b.)

B= Clearanc e to window or

door that may be opened.

C= Clearance to permanently

closed window.

D= Vertical clearance to ventilated soffit

located above the terminal within a
horizontal distance of 2 feet (61 cm)
from the center line of the terminal.

E= Clearance to unventilated soffit. * *
F= Clearance to outside corner. * *
G= Clearance to inside corner. * *
H= Clearance to each side of center

line extended above meter/regulator
assembly.

Canadian Installations

12 in. (30 cm) 12 in. (30 cm)

6 in. (15 cm) for appliances
10,000 Btuh (3 kW), 12 in. (30 cm) for
appliances > 10,000 Btuh (3 kW) and
100,000 Btuh (30 kW), 36 in. (91 cm)
for appliances > 100,000 Btuh (30
kW).

**

**

3 ft. (91 cm) within a height 15 ft.
(4.5 m) above the meter/regulator
assembly .

1

OTHER THAN DIRECT VENT TERMINAL CLEARANCES

A= C leara nce a bove grade,

veranda, porch, deck or
balcony. (See 1.24.6-i(9)b.)

B= C leara nce to wind ow or

door that may be opened.

C= Clearance to per man ently

closed window.

D= Vertical clearance to ventilated soffit

located above the terminal within a
horizontal distance of 2 feet (61 cm)
from the center line of the terminal.

E= C leara nce to unv ent ilated soffit. * *
F= Clearance to outside corner. * *
G= Clearance to inside corner. * *
H= Clearance to eac h side of center

line extend ed above meter/regul ator
assembly.

Canadian Installations

12 in. (30 cm) 12 in. (30 cm)

6 in. (15 cm) for appliances
10,000 Btuh (3 kW), 12 in. (30 cm) for
appliances > 10,000 Btuh (3 kW) and
100,000 Btuh (30 kW), 36 in. (91 cm)
for applia nces > 100,000 Btuh (30
kW).

**

**

3 ft. (91 cm) within a height 15 ft.
(4.5 m) above the meter/regulator
assembly.

1

U.S. Installations

6 in. (15 cm) for appliances
10,000 Btuh (3 kW), 9 in. (23 cm) for
appliances > 10,000 Btuh (3 kW) and
50,000 Btuh (15 kW), 12 i n. (30 cm) for
appliances > 500,000 Btuh (15 kW).

*

U.S. Installati ons

4 ft. (1.2 m) below or to side of
opening; 1 ft. (300 m) above opening.

*

2

2

I= Clearance to service

regulator vent outlet.

J= Clearance to nonmech ani cal air

supply inlet to building or the
combustion air inlet to any other
appliance.

K= Clearance to a mechanical

air supply inlet.

L= Clearance above paved sidew al k or

paved driveway located on public
property.

M= Clearance under veranda, porch,

deck or balcony.

1 In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.

2 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.

† A vent shall not terminate directly above a sidewalk or paved driveway that is located between two single fanily dwellings and serves

both dwellings.

‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.

* For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, the following statement shall be included:

“Clearance in accordance wtih local installation codes and the requirements of the gas supplier and the manufacturer’s installation

instruction.”

I= Clearance to sevice

regulator vent outlet.

J= Cl earance to nonmechanica l ai r

supply inlet to building or the
combustion air inlet to any other
appliance.

K= Clearance to a mechanical

air supply inlet.

L= Clearance above paved sidewalk or

paved driveway located on public
property.

M= Clearance under veranda, porch,

deck or balcony.

1 In accordance with the current CSA B149.1, Natural Gas and Propane Installation Code.

2 In accordance with the current ANSI Z223.1/NFPA 54, National Fuel Gas Code.

† A vent shall not terminate directly above a sidewalk or paveable driveway that is located between two single family dwellings and

serves both dwelling.

‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor.

* For clearances not specified in ANSI Z223.1/NFPA 54 or CSA B149.1, the following statement shall be included:

“Clearance in accordance wtih local installation codes and the requirements of the gas supplier and the manufacturer’s installation

instruction.”

Canadian Installations

3 ft. (91 cm). *

6 in. (15 cm) for appliance s 10,000
Btuh (3 kW), 12 in. (30 cm) for
appliances > 10,0 00 Btu h (3k W) an d
100,000 Btuh (30 kW), 36 in. (91 cm)
for appliances > 100,000 Btuh (30 kW).

6 ft. (1.83 m) 3 ft. (91 cm) above if within

7 ft. (2.13m) † *

12 in. (30 cm) ‡ *

Canadian Installations

3 ft. (91 cm). *

6 in. (15 cm) for appliances 10,000
Btuh (3 kW), 12 in. (30 cm) for
appliances > 10,000 Btuh (3kW) and
100,000 Btuh (30 kW), 36 in. (91 cm)
for appliances > 100,000 Btuh (30 kW).

6 ft. (1.83 m) 3 ft. (91 cm) above if within

7 ft. (2.13m) † 7 ft. (2.13m)

12 in. (30 cm) ‡ *

1

1

U.S. Installations

6 in. (15 cm) for appliances 10,00 0
Btuh (3 kW), 9 in. (23 cm) fo r
appliances > 10,000 Btuh (3kW) and
50,000 Btuh (15 kW), 12 in. (30 cm) for
appliances > 50,000 Btuh (15 kW ).

10 ft. (3 m) horizontally.

U.S. Installations

4 ft. (1.2 m) below or to side of
opening; 1 ft. (300 m) above opening.

10 ft. (3 m) horizontally.

2

2

23

PRODUCT DESIGN

SPECIAL VENTING REQUIREMENTS FOR INSTALLATIONS IN
CANADA

All installations in Canada must conform to the requirements
of CSAB149 code. All vent system components, including
primer and cement, must be listed to ULC S636. The certi­fied pipe and fittings should be clearly marked with the ULC
standard “S636”. The primer and cement used must be of the
same manufacturer as the vent system. For Royal Pipe Sys­tem 636; use GVS-65 Primer (Purple) and GVS-65 PVC
Solvent Cement. For IPEX System 636, use PVC/CPVC
Primer, Purple or clear. Use PVC Solvent Cement (Gray).

For Canadian installations, ABS may be used as a combus­tion air pipe only. ABS is not an approved vent material in
Canada. If ABS is used as a combustion air pipe, it must be
CSA certified. Always follow the manufacturer’s instructions
in the use of primer and cement. Do not use primer and ce­ment around potential sources of ignition. Do not use primer
or cement beyond its expiration date.

The vent can be run through an existing unused chimney
provided the space between the vent pipe and the chimney is
insulated and closed with a weather-t

ight, corrosion-resistant

flashing.

STANDARD FURNACE CONNECTIONS

It is the responsibility of the installer to ensure that the piping
connections to the furnace are secure, airtight, and adequately
supported.

As shipped, attachment “couplings” for vent/flue and combustion
air intake pipe connections are provided on the furnace’s top cover
(upflow) or basepan (counterflow). To use the standard connec­tions, field supplied vent/flue pipe and combustion air intake pipe
(when applicable) should be secured directly to the furnace at
these locations.

VENT/FLUE PIPE

Vent/flue pipe can be secured to the vent/flue coupling using the
rubber coupling and worm gear hose clamps provided with this
furnace (see “Standard Connections” figure). The rubber coupling
allows separation of the vent/flue pipe from the furnace during
servicing. Combustion Air and Vent piping should be routed in a
manner to avoid contact with refrigerant lines, metering devices,
condensate drain lines, etc.

COMBUSTION AIR PIPE

DIRECT VENT INSTALLATIONS

On upflow units secure the combustion air intake pipe directly to
the air intake coupling. On counterflow units secure the com­bustion air intake pipe to the air intake coupling using the rubber
coupling and worm gear hose clamps provided with the unit. The
counterflow rubber coupling allows service removal of air intake
piping internal to the furnace blower compartment.

ON-DIRECT VENT INSTALLATIONS

N

A minimum of one 90° elbow should be installed on the combus­tion air intake “coupling” to guard against inadvertent blockage.

(DIRECT VENT ONLY)

90 PVC

ELBOW

(NON-DIRECT VENT)

COMBUSTION

AIR PIPE

OR

VENT/FLUE

PIPE

RUBBER

COUPLING

WITH WORM

GEAR CLAMPS

UPFLOW COUNTERFLOW

90 PVC
ELBOW

(NON-DIRECT VENT)

COMBUSTION

AIR PIPE

(DIR EC T VENT ONLY)

OR

RUBBER
COUPLINGS
WITH WORM

GEAR CLAMPS

VENT/FLUE

PIPE

Standard Connections

WARNING

E

DGES OF SHEET METAL HOLES MAY BE SHARP

PRECAUTION WHEN REMOVING HOLE PLUGS

.

. USE

GLOVES AS A

ALTERNATE VENT/FLUE LOCATION

The alternate vent/flue location is the large hole directly in line
with the induced draft blower outlet. To use the alternate vent/flue
location refer to the following steps and the “Alternate Vent/Flue
Location” figure.

NOTE: Counterflow instructions follow the upflow instructions.

1. Remove and save the four screws securing the vent/
flue coupling to the furnace top panel.

Counterflow units.

Remove and save the four screws securing the vent/
flue coupling to the furnace basepan. Also remove the
three screws securing the furnace’s internal vent/flue
piping to the blower deck.

24

PRODUCT DESIGN

2. Upflow and Counterflow units.
Loosen the worm gear hose clamps on the rubber el-

bow and detach it from both the induced draft blower
and the vent/flue pipe.

3. Upflow and Counterflow units.
Remove the vent/flue pipe from the furnace.

4. Cut the vent/flue pipe 3.75 inches from the flanged end
of the pipe (see “Vent/Flue Pipe Cut s” figure). The sec­tion of pipe attached to the coupling will reach through
the side panel to the induced draft blower . Discard re­maining pipe and elbows.

Counterflow units.

Cut the vent/flue pipe 3.75 inches from the blower deck cou­pling (see “Vent/Flue Pipe Cuts” figure). Save vent/flue pipe
attached to blower deck coupling for use in the alternate lo­cation. Discard remaining pipe and elbows.

FLANGE

3.75"

CUT HERE

Counterflow units.
Remove plastic plug from alternate vent/flue location.

Relocate and install plug in standard vent/flue location
(basepan). Plug remaining hole in blower deck with
plastic plug included in the drain kit bag.

6. Upflow and Counterflow units.
Insert cut section of vent/flue pipe and coupling into al-

ternate vent/flue location. Using a rubber coupling and
worm gear hose clamps from the drain kit bag, attach
the vent/flue pipe and coupling to the induced draft
blower. Secure the coupling to the cabinet using the
screws removed in step 1 or with field-supplied 3/8” #8
self tapping screws.

WARNING

THE

RUBBER ELBOW IS NOT DESIGNED TO SUPPORT A LOAD
RUBBER ELBOW IS MOUNTED EXTERNALLY TO THE FURNACE CABIN E T
EXTREME CARE MUST BE TAKEN TO ADEQUATELY SUPPORT FIELD
SUPPLIED VENT/FLUE PIPING, AS DAMAGE CAN RESU LT IN LEAKS
CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO FLUE GASES
INCLUDING CARBON MONOXIDE

. W

HEN THE

-

,

,

Vent/Flue Pipe Cuts

5. Remove plastic plug from alternate vent/flue location.
Relocate and install plug in standard vent/flue location
(top cover).

25