Goodman GMEC96 Operating instructions

RS6612013r7
November 2017
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. The material in this manual does not supercede manufacturers
installation and operation instructions.
Copyright© 2014 - 2017 Goodman Company, L.P.
Service Instructions
Goodman®Brand GMEC96/GCEC96
&Amana®BrandAMEC96/ACEC96
Two Stage Furnace
withmulti-speedECMMotor
®
is a registered trademark of Maytag Corporation or its related companies and
is used under license to Goodman Company, L.P., Houston, TX, USA. All rights reserved.

2
IMPORTANTINFORMATION
Prideandworkmanshipgointoeveryproducttoprovideourcustomerswithqualityproducts. Itispossible,however,
thatduringitslifetimeaproductmayrequireservice. Productsshouldbeservicedonlybyaqualifiedservicetechnician
whoisfamiliarwiththesafetyproceduresrequiredintherepairandwhoisequippedwiththeproper tools,parts,testing
instrumentsandtheappropriateservicemanual. REVIEWALLSERVICEINFORMATIONINTHEAPPROPRIATE
SERVICEMANUALBEFOREBEGINNINGREPAIRS.
IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS
RECOGNIZESAFETYSYMBOLS,WORDSANDLABELS
TABLEOFCONTENTS
WARNING
HIGH VOLTAGE
DISCONNECT ALL POWER BEFORE SERVICING OR
INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY
BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
IMPORTANTINFORMATION ...............................3
PRODUCTIDENTIFICATION ..............................5
FURNACESPECIFICATIONS...............................9
OPERATIONINSTRUCTIONS............................10
SYSTEMOPERATION. .....................................11
ACCESSORIES.................................................44
SERVICING TABLE OF CONTENTS..................48
SERVICING ........................................................49
MAINTENANCE ..................................................66
WIRINGDIAGRAMS ....................................70 -72
O NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL , ADJUST , SERVICE OR
REPAIR ( HEREINAFTER , “ SERVICE ”) THE EQUIPMENT SPECIFIED IN THIS
MANUAL SHOULD SERVICE THE EQUIPMENT . T HE MANUFACTURER WILL NOT
BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM
IMPROPER SERVICE OR SERVICE PROCEDURES . I F YOU SERVICE THIS UNIT , YOU
ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY
RESULT . I N ADDITION , IN JURISDICTIONS THAT REQUIRE ONE OR MORE
LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL , ONLY
LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT . I MPROPER
INSTALLATION , ADJUSTMENT , SERVICING OR REPAIR OF THE EQUIPMENT
SPECIFIED IN THIS MANUAL , OR ATTEMPTING TO INSTALL , ADJUST , SERVICE OR
REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER
TRAINING MAY RESULT IN PRODUCT DAMAGE , PROPERTY DAMAGE , PERSONAL
INJURY OR DEATH .

3
IMPORTANTINFORMATION
To locate an authorized servicer, please consult your telephone book or the dealer from whom you purchased this
product. For further assistance, please contact:
CONSUMERINFORMATIONLINE
GOODMAN®BRAND PRODUCTS
TOLLFREE
1-877-254-4729(U.S. only)
email us at:
[email protected]
fax us at: [phone]
(Not a technical assistance line for dealers.)
CONSUMERINFORMATIONLINE
AMANA®BRANDPRODUCTS
TOLLFREE
1-877-254-4729(U.S. only)
email us at:
hac.consumer[email protected]
fax us at: [phone]
(Not a technical assistance line for dealers.)
Outside the U.S., call 1-713-861-2500.
(Not a technical assistance line for dealers.) Your telephone company will bill you for the call.
B10259-216
CO can cause serious illness including permanent brain
damage ordeath.
Advertencia especial para la instalación de calentadores ó manejadoras
de aire en áreas cerradas como estacionamientos ó cuartos de servicio.
B10259-216
El monóxido de carbono puede causar enfermedades severas
como daño cerebral permanente ó muerte.
Las emisiones de monóxido de carbono pueden circular a través
del aparato cuando se opera en cualquier modo.
B10259-216
RISQUE D'EMPOISONNEMENT AU MONOXYDE DE CARBONE
Le monoxyde de
des carbone peut causerdes maladies graves telles que dommages permanents au cerveau et meme la mort.
Cette ventilation est nécessaire pour éviter le danger d'intoxication
au CO pouvant survenir si un appareilproduisant du monoxyde
de carbone continue de fonctionner au sein de la zone confinée.

4
IMPORTANT INFORMATION
RO B INE T AGA
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M A N U ALG A S
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PRODUCT IDENTIFICATION
5
Themodelandmanufacturingnumberareusedforpositiveidentificationofcomponentpartsusedinmanufacturing.
Pleaseusethesenumberswhenrequestingserviceorpartsinformation.
* M E C 96 60 3 B N A A
12345,67,8,91011121314
Brand Minor Revision
A - Amana ®Brand A - Initial Release
G - Goodman ®Brand B - 1st Revision
Configuration Major Revision
M- Upflow / Horizontal A - Initial Release
C - Downflow / Horizontal B - 1st Revision
Motor NOx
V - Variable Speed ECM/ ComfortNet N - Low NOx
E - Multi-Speed ECM
S - Single Speed Cabinet Width
A - 14"
Gas Valve B - 17.5"
M - Modulating C - 21"
C - 2 Stage D - 24.5"
S - Single Stage Maximum CFM
AFUE 2 - 800 CFM
96 - 96% AFUE 3 - 1200 CFM
92 - 92% AFUE 4 - 1600 CFM
5 - 2000 CFM
MBTU/h
040 - 40,000 BTU/h
060 - 60,000 BTU/h

PRODUCT IDENTIFICATION
6
MODEL # MFG.# DESCRIPTION
AMEC960402BNAA
AMEC960603BNAA
AMEC960803BNAA
AMEC961004CNAA
AMEC961205DNAA
Amana®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Up
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECMmotor.
Stainless Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right gas.
AMEC960302BNAB
AMEC960402BNAB
AMEC960603BNAB
AMEC960803BNAB
AMEC961004CNAB
AMEC961205DNAB
AMEC960804CNAB
AMEC961005CNAB
Amana®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Up
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECMmotor.
Stainless Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right gas.
AMEC960303ANAA
AMEC960403ANAA
AMEC960603ANAA
AMEC960302BNAC
AMEC960402BNAC
AMEC960603BNAC
AMEC960803BNAC
AMEC960804CNAC
AMEC961004CNAC
AMEC961005CNAC
AMEC961205DNAC
Amana®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Up
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECMmotor.
Stainless Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right gas.
Control board changed from PCBBF137 to PCBBF139. New control feature gives
installer multiple choices for constant fan mode.
GMEC960402BNAA
GMEC960603BNAA
GMEC960803BNAA
GMEC961004CNAA
GMEC961205DNAA
Goodman®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Up
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECMmotor.
Stainless Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right gas.
GMEC960302BNAB
GMEC960402BNAB
GMEC960603BNAB
GMEC960803BNAB
GMEC961004CNAB
GMEC961205DNAB
GMEC960804CNAB
GMEC961005CNAB
Goodman®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Up
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECMmotor.
Stainless Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right gas.
For Control board part # change to PCBBF137 with heat speed DIP switches.
GMEC960303ANAA
GMEC960403ANAA
GMEC960603ANAA
GMEC960302BNAC
GMEC960402BNAC
GMEC960603BNAC
GMEC960803BNAC
GMEC960804CNAC
GMEC961004CNAC
GMEC961005CNAC
GMEC961205DNAC
Goodman®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Up
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECMmotor.
Stainless Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right gas.
For Control board part # change to PCBBF137 with heat speed DIP switches. Control
board changed from PCBBF137 to PCBBF139. New control feature gives installer
multiple CFM choices for constant fan mode.
AMEC96
GMEC96

PRODUCT IDENTIFICATION
7
MODEL # MFG. # DESCRIPTION
ACEC96
ACEC960403BNAA
ACEC960603BNAA
ACEC960803BNAA
ACEC961005BNAA
Amana ®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Counter
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECM motor.
Stainless Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right gas.
PCBBF139 Control board which gives installer multiple CFM choices for constant fan
mode.
GCEC96
GCEC960403BNAA
GCEC960603BNAA
GCEC960803BNAA
GCEC961005BNAA
Goodman®Brand 96% Two Stage Heating / Two Stage Cooling Gas Furnace, Counter
flow/Horizontal Left and Right, 34.5" tall, Induced Draft, Nidec multi-speed ECMmotor.
Aluminized Steel tubular heat exchanger. 115 volt silicon nitride igniter. Left or right
gas. PCBBF139 Control board which gives installer multiple CFM choices for constant
fan mode.

PRODUCT IDENTIFICATION
8
MODEL # MFG # DESCRIPTION
AFE18-60A N/A Fossil Fuel Kit. The AFE18-60Acontrol is designed for use where the indoor coil is located
above/downstream of a gas or fossil fuel furnace when used with a heat pump. Itwill
operate with single and two stage heat pumps and single and two stage furnaces
AMU1620
AMU1625
AMU2020
AMU2025
GMU1620
GMU1625
GMU2020
GMU2025
P1251305F
P1251306F
P1251307F
P1251308F
N/A
Media Air Cleaner. The Amana (AMU*) and Goodman (GMU*) Media Air Cleaneris a high
efficiencyair filtration device designed to remove dirt,dust, pollen and other microscopic
particles from the air passing through it. Flexible performance range up to 2,0
ASAS-10
ASAS-11
ASAS-12
ASAS-18
P1251301F
P1251302F
P1251303F
P1251304F
Electronic Air Cleaner. The High-EfficiencyElectronic Air Cleaner is designed to remove air
contaminants down to .01 microns.Carbon filters (optional) remove odors. Dual indicator
lights show unitoperation ata glance. Electronicproving switch cycle
DCVK-20 (CVENT - 2)
DCVK-30 (CVENT - 3)
P1254001F
P1254002F
Concentric Vent Kit.For use with Amana® Brand high efficiencyfurnace models. This kitis
designed to allow terminations of a directvent furnace to be "concentrically"vented through
a wall or roof.This kitallows a single penetration to supporttermin
0170K00000S N/A Side Wall Only Concentric Vent Kit.For use with high efficiencyfurnace models. This kit is
to be used with 2" - 3"ventsystems.The ventkitmustterminate outside the structure. This
kitis NOTintended for use with single pipe (indirectvent) instal
0170K00001S N/A Side Wall Only Concentric Vent Kit.For use with high efficiency90% furnace models. This
kitis to be used with 2" onlyventsystems.The vent kitmust terminate outside the structure.
This kitis NOTintended for use with single pipe (indirectvent) in
EFR02 P1221001
P1221002F
External Filter Rack Kit.This kitis intended to provide a location,external to the furnace
casing, for installation of a permanent filter.The rack is mounted over the indoor air blower
compartmentarea ofeither side panel,and provide filter retentio
LPLP03 N/A LP Gas Low Pressure Kit.Designed for application on Goodman® and Amana® Brand's
80% and 90% single-stage and two-stage gas fired furnace products installed on LP gas
listed in this manual.This kitincludes harness adaptors to work with White-Rodgers sin
RF000142 N/A Vent Drain Coupling.For use when the furnaces is installed in horizontal leftposition and
the internal elbow is removed. Mayalso be used in the combustion air intake if
condensation is an issue.
CFSB17
CFSB21
CFSB24 N/A
Counterflow Subbase Kit. For use with Amana® Brand,Goodman®brand 96% two stage
34.5 furnace model.These kits are available for the following furnace width:17.5"wide
(CFSB17),21" wide (CFSB21,and 24"Wide CFSB21.The kitmustbe used to prevent
excessive temperature from reaching combustible materials,ifthe furnace is installed on
combustible floor. This subbase effectivelyseparated the furnace base and plenum from
combustile materials.To ensure safe installation, do not install the counterflow floor base
directlyon carpeting, tile or other combusible material other than wood flooring.

FURNACE SPECIFICATIONS
9
1Natural Gas BTU/h
2DOE AFUE based upon Isolated Combustion System (ICS)
3Installer must supply one or two PVC pipes: one for
combustion air (optional) and one for the flue outlet (required).
Vent pipe must be either 2" or 3" in diameter, depending upon
furnace input, number of elbows, length of run and installation
(1 or 2 pipes). The optional Combustion Air Pipe is dependent
on installation/code requirements and must be 2" or 3"
diameterPVC.
4Minimum Circuit Ampacity = (1.25 x Circulator Blower Amps) +
ID Blower amps. Wire size should be determined in
accordance with National Electric Codes. Extensive wire runs
will require larger wire sizes.
5Maximum Overcurrent Protection Device refers to maximum
recommended fuse or circuit breaker size. May use fuses or
HACR-type circuit breakers of the same size as noted
Notes
•All furnaces are manufactured for use on 115 VAC, 60 Hz,
single-phase electrical supply.
•Gas Service Connection 1/2" FPT
•Important: Size fuses and wires properly and make electrical
connections in accordance with the National Electrical Code
and/or all existing local codes.
•For bottom return: Failure to unfold flanges may reduce
airflow by up to 18%. This could result in performance and
noise issues.
• For servicing or cleaning, a 24" front clearance is required.
Unit connections (electrical, flue and drain) may necessitate
greater clearances than minimum clearances listed above. In
all cases, accessibility clearance must take precedence over
clearances from the enclosure where accessibility clearances
are greater.
Heating Data
High Fire Input¹ 40,000 60,000 80,000 100,000
High Fire Output¹ 38,400 57,600 76,800 96,000
Low-Fire Steady-State Input¹ 28,000 42,000 56,000 70,000
Low-Fire Steady-State Output¹ 26,880 40,320 53,760 67,200
AFUE 96 96 96 96
Temperature Rise Range (°F) 25 - 55 25 - 55 40 - 70 36 - 65
Vent Diameterᶾ2" - 3" 2" - 3" 2" - 3" 2" - 3"
No.ofBurners 2345
CirculatorBlower
Available AC @ 0.5 ESP 1.5 - 3 1.5 - 3 1.5 - 3 3 - 5
Size (D x W) 10 x 8 10 x 8 11 x 8 11 x 10
Horsepower @ 1075 RPM 1/2 1/2 1/2 1 HP
Speed 5555
Electrical Data
Min. Circuit Ampacity⁴88813.3
Max. Overcurrent Device (AMPS)⁵15 15 15 15
*CEC96
0403BNAA
*CEC96
0603BNAA
*CEC96
0803BNAA
*CEC96
1005CNAA
*MEC96
0303ANA *MEC96 0403ANA *MEC96 0603ANA *MEC96 0302BNA *MEC96 0402BNA *MEC96 0603BNA *MEC96 0803BNA *MEC96 1004CNA *MEC96 1205DNA *MEC96 0804CNA *MEC96 1005CNA
Heating Data
High Fire Input¹ 30,000 40,000 60,000 30,000 40,000 60,000 80,000 100,000 120,000 80,000 100,000
High Fi re Output¹ 28,800 38,400 57,600 28,800 38,400 57,600 76,800 96,000 115,200 76,800 96,000
Low-Fire Steady-State Input¹ 21,000 28,000 42,000 21,000 28,000 42,000 56,000 70,000 84,000 56,000 70,000
Low-Fi re Stea dy-State Output¹ 20,160 26,880 40,320 20,160 26,880 40,320 53,760 67,200 80,640 53,760 67,200
AFUE² 9696969696969696969696
Tempe rature Ris e Range (°F) 20 - 50 20 - 50 30 - 60 20 - 50 20 - 50 25 - 55 35 - 65 35 - 65 35 - 65 25 - 55 35 - 65
Ve nt Di ameter³ 2" - 3" 2" - 3" 2" - 3" 2" - 3" 2" - 3" 2" - 3" 2" - 3" 2" - 3" 2" - 3" 2" - 3" 2" - 3"
No.ofBurners 22322345645
Circulator Blower
Avai lable AC @ 0.5” ESP 1.5 - 3 1.5 - 3 1.5 - 3 1.5 - 2 1.5 - 3 1.5 - 3 1.5 - 3 1.5 - 4 3 - 5 2.5 - 4 3 - 5
Size (D x W) 11" x 6" 11" x 6" 11" x 6" 10" x 8" 10" x 8" 11" x 8" 11" x 8" 11" x 10" 11" x 11" 11" x 10" 11" x 10"
Horse powe r @ 1075 RPM 1/2 1/2 1/2 1/2 1/2 1/2 1/2 1 1 3/4 1
Speed 55555555555
Electrical Data
Min. Circuit Ampacity48.6 8.6 8.6 8 8 8 8 13.3 13.3 11.6 13.3
Max. Overcurrent Device (amps)515 15 15 15 15 15 15 15 15 15 15
Shipping Weight (lbs) 106 107 110 111 112 115 118 140 154 123 140

OPERATIONS INSTRUCTIONS
10
Introduction
Thisisa Category lV furnace. This furnace usesa pressur-
izedventingsystemandmustbeinstalledper National and
local codes requirements and the installation manual that
wasshippedwiththefurnace.
The *MEC96 34.5" furnace is one of the products in our
newlyredesigned lineofshorterchassis furnaces. Itisavail-
ableinthefollowingsizesandsuitableforupflow/horizon-
tal installation.
*MEC960303ANA *CEC960402BNAA
*MEC960403ANA *CEC960603BNAA
*MEC960603ANA *CEC960803BNAA
*MEC960302BNA *CEC961005CNAA
*MEC960402BNA Suitable for counter
*MEC960603BNA flow or horizontal
*MEC960803BNA installation.
*MEC960804CNA
*MEC961004CNA
*MEC961005CNA
*MEC961205DNA
Safety
Pleaseadhere to the following warnings andcautionswhen
installing,adjusting,altering,servicing,oroperating the fur-
nace.
TO PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER INSTALLATION,
ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE, REFER TO THIS
MANUAL. FOR ADDITIONAL ASSISTANCE OR INFORMATION, CONSULT A
QUALIFIED INSTALLER, SERVICE AGENCY OR THE GAS SUPPLIER.
WARNING
WARNING
THIS 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
REPRODUCTIVE 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.
Charge(ESD)Precautions
NOTE: Discharge body’s static electricity before touching
unit.Anelectrostaticdischargecanadverselyaffectelectri-
calcomponents.
Usethefollowingprecautionsduringfurnaceinstallation and
servicingto protect theintegratedcontrolmodule from dam-
age. By putting the furnace, the control, and the person at
thesameelectrostatic potential, these steps will help avoid
exposingtheintegrated control module to electrostatic dis-
charge. This procedure is applicable to both installed and
uninstalled(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
chargeto ground.
2. Firmly touch a clean, unpainted, metal surface of the
furnace near the control. Any tools held in a person’s
handduring grounding will be discharged.
3. Service integrated control module or connecting wiring
following the discharge process in Step 2. Use caution
nottorecharge your body with static electricity;(i.e., do
notmove or shuffle your feet,do nottouch ungrounded
objects,etc.). Ifyoucomein contactwithanungrounded
object,repeat Step 2 before touching control orwires.
4. Dischargeany static electricityfromyour body toground
beforeremoving a newcontrolfromits container. Follow
Steps 1 through 3 if installing the control on a furnace.
Returnany old ornewcontrolsto their containers before
touchinganyungrounded object.
Product Application
This product is designed for use as a residential home gas
furnace.Itisnot designedorcertified foruse inmobile home,
trailer,orrecreationalvehicle applications.
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 installation instructions.
The*MEC96furnacesare ETL certified appliances and are
appropriate for use with natural or propane gas. (NOTE: If
usingpropanegas,apropaneconversionkitisrequired).
*MEC96furnacesare dual certified.
Dualcertificationmeans that the combustion air inlet pipeis
optionalandthe furnace can be vented as a:
Non-directvent (singlepipe)central forcedairfurnace
in which combustion air is taken from the installation
areaor from air ducted from the outsideor,
Directvent(dualpipe)centralforcedairfurnaceinwhich
allcombustionairsupplieddirectlytothe furnaceburn-
ers through a special air intake system outlined in
this manual and the installation instructions.
Toensureproper installation, operation and servicing, thor-
oughlyreadtheinstallationand service manuals for specif-
icspertainingto the installation, servicing and application of
this product.
WARNING
POSSIBLE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH DUE TO FIRE,
EXPLOSION, SMOKE, SOOT, CONDENSTAION, ELECTRICAL SHOCK OR CARBON
MONOXIDE MAY RESULT FROM IMPROPER INSTALLATION, REPAIR, OPERATION,
OR MAINTENANCE OF THIS PRODUCT.