TECHNICAL MANUAL
GCH9
40" 95% Gas Furnace
•
•
•
•
Refer to Service Manual RS6610004 for installation, operation, and troubleshooting information.
All safety information must be followed as provided in the Service Manual.
Refer to the appropriate Parts Catalog for part number information.
Model numbers listed on page 3.
®
US
C
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.
RT6612019Rev.2
April 2010
Copyright © 2007, 2009-2010 Goodman Manufacturing Company, L.P.
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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.
GCH90453BXA*
GCH90703BXA*
GCH90704CXA*
GCH90904CXA*
GCH90905DXA*
GCH91155DXA*
These models are Low NOx.
The United States Environmental Protection Agency (“EPA”) has issued various regulations re-
garding the introduction and disposal of refrigerants introduced into this unit. Failure to follow
WARNING
these regulations may harm the environment and can lead to the imposition of substantial fines.
These regulations may vary by jurisdiction. Should questions arise, contact your local EPA office.
Do not connect or use any device
To prevent the risk of property
WARNING
WARNING
that is not design certified by
Goodman for use with this unit.
damage, personal injury, or death,
do not store combustible materials or use gasoline or
other flammable liquids or vapors in the vicinity of this
appliance.
Serious property damage, personal injury, reduced unit
performance and/or hazardous conditions may result
from the use of such non-approved devices.
3
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PRODUCT DESIGN
3. Conversion kits for high altitude natural or propane gas
operation are available. See High Altitude Derate chart
for details.
General Operation
The GCH9 furnaces are equipped with an electronic ignition
device used to light the burners and an induced draft blower
to exhaust combustion products.
4. Installer must supply the following gas line fittings, de-
pending on which entrance is used:
An interlock switch prevents furnace operation if the blower
door is not in place. Keep the blower access door in place
except for inspection and maintenance.
Left -- Two 90º Elbows, one close nipple, straight pipe.
Right -- Straight pipe to reach gas valve.
This furnace is also equipped with a self-diagnosing elec-
tronic control module. In the event a furnace component is
not operating properly, the control module LED will flash on
and off in a factory-programmed sequence, depending on
the problem encountered. This light can be viewed through
the observation window in the blower access door. Refer to
the Troubleshooting Chart for further explanation of the LED
codes and Abnormal Operation - Integrated Ignition Control
section in the Service Instructions for an explanation of the
possible problem.
Accessibility Clearances (Minimum)
MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
(INCHES)
POSITION* FRONT SIDES REAR
TOP
FLUE FLOOR
Upflow
3
3
0
6
0
0
1
6
0
0
C
C
Horizontal
*= All positioning is determined as installed unit is viewed from the front.
C= If placed on combustible floor, floor MUST be wood only.
NC= For instalaltion on non-combustible floors only. A non-combustible
subbase must be used for installations on combustible flooring.
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 Con-
tractors of America.
24" at front is required for servicing or cleaning.
Note: In all cases accessibility clearance shall take prece-
dence over clearances from the enclosure where accessibil-
ity clearances are greater. All dimensions are given in inches.
*Obtain from: American National Standards Institute 1430
Broadway New York, NY 10018
High Altitude Derate
When this furnace is installed at high altitude, the appropri-
ate High Altitude orifice kit must be installed. This is re-
quired due to the natural reduction in the density of both the
gas fuel and combustion air as altitude increases. The kit
will provide the proper design certified input rate within the
specified altitude range.
Location Considerations
•
•
•
The furnace should be as centralized as is practical
with respect to the air distribution system.
Do not install the furnace directly on carpeting, tile, or
combustible material other than wood flooring.
When suspending the furnace from rafters or joists,
use 3/8" threaded rod and 2” x 2” x 3/8” angle as
shown in the Installation and Service Instructions. The
length of the rod will depend on the application and
clearance necessary.
P ROP ANE AND HIG H ALTITUDE KITS
M ODEL
NUM BER
0
to
7 ,001 to
9,000 ft.
9 ,001 to
11,000 ft.
7 ,001 to
11,000 ft.
7,001 to
1 1,00 0 ft.
7,00 0 ft.
LPM -031
LPM -051
LPM -062
Prop ane
C onve rs ion Kit
(#55 Orifices )
HANG1 1
H ig h Altitude
N atu ral Ga s Kit N atu ral Gas Kit
(#44 Orifices ) (#45 Orifices )
HANG1 2
H ig h Altitude
HALP 10
H igh Altitude
LP Gas Kit
GCH9*****XA*
TBD
(#56 Orifices )
•
When installed in a residential garage, the furnace
must be positioned so the burners and ignition source
are located not less than 18 inches (457 mm) above
the floor and protected from physical damage by ve-
hicles.
1
2
LPM -03 / LPM -05 supports W hite-Rodgers 2 -stage valves only
LPM -06 s upports Honeyw ell and W hite-Rodgers stage valves
2
High altitude kits are purchased according to the installa-
tion altitude and usage of either natural or propane gas. Refer
to the chart above for a tabular listing of appropriate altitude
ranges and corresponding manufacturer’s high altitude Natu-
ral Gas and Propane Gas kits. For a tabular listing of appro-
priate altitude ranges and corresponding manufacturer's High
Altitude Pressure Switch kits, refer to either the Pressure
Switch Trip Points & Usage Chart in this manual or the Ac-
cessory Charts in Service Instructions.
Notes:
1. Installer must supply one or two PVC pipes: one for com-
bustion 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” diameter PVC.
2. Line voltage wiring can enter through the right or left side
of the furnace. Low voltage wiring can enter through the
right or left side of furnace.
4
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COMPONENT IDENTIFICATION
10
5
26
27
31
24
11
28
25
3
15
23
14
3
29
30
31
18
16
17
18
19
19
20
20
13
12
2
21
1
9
6
4
8
7
7
Downflow /Horizontal
1
2
3
4
5
6
7
8
9
Two-Stage Gas Valve
19 Coil Front Cover Drain Port
20 Drain Line Penetrations
21 Drain Trap
Gas Line Entrance (Alternate)
Pressure Switch(es)
Gas Manifold
22 Blower Door Interlock Switch
23 Capicitor
Combustion Air Intake Connection
Hot Surface Igniter
Rollout Limit
24 Integrated Control Module
(with fuse and diagnostic LED)
25 24 Volt Thermostat Connections
26 Transformer (40 VA)
27 Circulator Blower
Burners
Flame Sensor
10 Flue Pipe Connection
11 Flue Pipe
28 Auxiliary Limits
12 Primary Limit
29 Junction Box
13 Gas Line Entrance
30 Electrical Connection Inlet
31 Coil Front Cover
14 Flue Pipe Connection (Alternate)
15 Rubber Elbow
16 Induced Draft Blower
17 Electrical Connection Inlets (Alternate)
18 Coil Front Cover Pressure Tap
5
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COMPONENT IDENTIFICATION
GCH9*****XA*
LEFT SIDE
VIEW
FRONTVIEW
RIGHT SIDE
VIEW
28 3/4
A
3/4
3/4
2 1/2
AIR INTAKE PIPE
2" PVC
3/4
VENT/FLUE PIPE
2" PVC
B
20 1/4
(RETURN)
2 1/16
CONDENSATE
DRAIN TRAP
w/ 3/4" PVC
DISCHARGE
(RIGHT OR
LOW VOLTAGE
ELECTRICAL HOLE
1 3/4
1 3/4
LOW VOLTAGE
ELECTRICAL HOLE
HIGH VOLTAGE
ELECTRICAL HOLE
40
LEFT SIDE)
ALTERNATE
VENT/FLUE
LOCATION
6 1/8
2 11/16
28 5/16
28 5/16
HIGH VOLTAGE
ELECTRICAL HOLE
ALTERNATE
AIR INTAKE LOCATION
19 7/8
18 13/16
DRAIN
TRAP
DRAIN
TRAP 2 5/8
2 5/8
C
L
C
L
RIGHT SIDE
DRAIN LINE
HOLES
LEFT SIDE
DRAIN LINE
HOLES
15 1/2
14
11 5/8
9 3/4
2
11 1/2
9 13/16
8 1/4
7 3/8
ALTERNATE GAS
SUPPLY HOLE
STANDARD GAS
SUPPLY HOLE
4 1/8
18 5/8
UNFOLDED FLANGES
D
UNFOLDED FLANGES
20 5/32
FOLDED FLANGES
E
FOLDED FLANGES
AIR
DISCHARGE
AIR
DISCHARGE
DISCHARGE
Cabinet Size
A
B
C
D
E
GCH90453BX**
GCH90703BX**
17-1/2
21
16
19-1/2
23
12-15/16
15-15/16
20-7/16
12-1/8
16
13-5/8
GCH90704CXA*
GCH90904CXA*
17-1/2
20-7/8
GCH90905DXA*
GCH91155DXA*
24-1/2
19-3/8
All dimensions are in inches.
6
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PRODUCT DESIGN
PRESSURE SWITCH TRIP POINTS AND USAGE CHART
0 to 7,000 ft.
ID BLOWER
PRESSURE
SWITCH
TRIP POINT
COIL COVER
PRESSURE SWITCH
TRIP POINT
ID BLOWER
PRESSURE SWITCH
MODEL
PRESSURE
SWITCH
PART #
PART #
GCH90453BX
GCH90703BX
GCH90704CX
GCH90904CX
GCH90905CX
GCH91155DX
-.60
-.60
-.37
-.60
-.37
-.60
20197311
20197311
20197313
20197311
20197313
20197311
-.60
-.60
-.37
-.60
-.37
-.60
20197311
20197311
20197313
20197311
20197313
20197311
Note: Replacement pressure switch number is listed below high altitude kit number.
Note: All negative pressure readings are in inches of water column (" w.c.).
T.O.D. PRIMARY LIMIT
Part Number
20162906 20162904 20162907
Open Setting (°F)
GCH90453BX
GCH90703BX
GCH90704CX
GCH90904CX
GCH90905DX
GCH91155DX
170
1
150
155
1
1
1
1
1
7
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PRODUCT DESIGN
ROLLOUT LIMIT SWITCHES
Part Number
10123517
10123534
Open Setting (°F)
GCH90453BX
GCH90703BX
GCH90704CX
GCH90904CX
GCH90905DX
GCH91155DX
210
1
220
2
2
2
2
2
AUXILIARY LIMIT SWITCHES
Part Number
Open Setting (°F)
GCH90453BX
GCH90703BX
GCH90704CX
GCH90904CX
GCH90905DX
GCH91155DX
10123518
10123519
170
160
2
2
2
2
2
2
8
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PRODUCT DESIGN
Coil Matches:
A large array of Amana® brand coils are available for use with the GCH9 furnaces, in either counterflow or horizontal
applications. These coils are available in both cased and uncased models (with the option of a field installed TXV expansion
device). These 90%+ furnaces match up with the existing Amana® brand coils as shown in the chart below.
Coil Matches (Goodman® units using R22 and R-410A):
C
A
P
F 1824 A
6
A
EXPANSION
DEVICE:
F: Flowrater
REVISION
A: Revision
PRODUCT
TYPE:
C: Indoor Coil
REFRIGERANT
CHARGE:
6: R-410A or R-22
2: R-22
4: R-410a
CABINET FINISH:
U: Unpainted
P: Painted
N: Unpainted Case
NOMINAL WIDTH FOR GAS FURNACE
A: Fits 14" Furnace Cabinet
B: Fits 17 1/2" Furnace Cabinet
C: Fits 21" Furnace Cabinet
D: Fits 24 1/2" Furnace Cabinet
N: Does Not Apply (Horizontal Slab Coils)
APPLICATION
A: Upflow/Downflow Coil
H: Horizontal A Coil
S: Horizontal Slab Coil
NOMINAL CAPACITY RANGE
@ 13 SEER
1824: 1 1/2 to 2 Tons
3030: 2 1/2 Tons
3636: 3 Tons
3642: 3 to 3 1/2 Tons
3743: 3 to 3 1/2 Tons
4860: 4 & 5 Tons
4961: 4 & 5 Tons
• All CAPF coils in B, C, & D widths have insulated blank off plates for use with one size smaller furnaces.
• All CAPF coils have a CAUF equivalent.
• All CHPF coils in B, C & D heights have an insulated Z bracket for use with one size smaller furnace.
• All proper coil combinations are subject to being ARI rated with a matched outdoor unit.
9
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PRODUCT DESIGN
Thermostats:
NOTE: Complete lineup of thermostats can be found in the Thermostat Specification Sheets.
Filters:
Filters are required with this furnace and must be provided by the installer. The filters used must comply with UL900 or
CAN/ULCS111 standards. Installing this furnace without filters will void the unit warranty.
Upflow Filters
This furnace has provisions for the installation of return air filters at the side and/or bottom return. The furnace will
accommodate the following filter sizes depending on cabinet size:
Side Return(s)
Nominal
Bottom Return
Nominal
Approx.
Approx.
Flow Area
Cabinet
Width
(in.)
Cabinet
Width
(in.)
Flow Area
Filter Size
(in.)
Filter Size
(in.)
(in2)
400
(in2)
350
400
500
All
16 x 25 x 1
17-1/2
21
14 x 25 x 1
16 x 25 x 1
20 x 25 x 1
24-1/2
RefertoMinimumFilterAreatablestodeterminefilterarearequirement. NOTE:Filterscanalsobeinstalledelsewherein
the duct system such as a central return.
COOLING AIRFLOW REQUIREMENT (CFM)
COOLING AIRFLOW REQUIREMENT (CFM)
600
194*
---
800
194*
324*
---
1000
240
324*
291*
432*
---
1200
288
1400 1600
2000
---
600
388*
---
800
388*
647*
---
1000
480
647*
583*
863*
---
1200
576
1400
---
1600
---
2000
---
0453BXA*
0703BXA*
0704CXA*
0904CXA*
0905DXA*
1155DXA*
---
---
0453BXA*
0703BXA*
0704CXA*
0904CXA*
0905DXA*
1155DXA*
324*
291*
432*
388*
486*
336
336
432*
388*
486*
---
---
647*
583*
863*
777*
971*
672
672
863*
777*
971*
---
---
---
384
432*
388*
486*
---
---
768
863*
777*
971*
---
---
---
---
---
---
---
---
---
480
486*
---
---
960
971*
---
---
---
---
---
---
*Minimum filter area dictated by heating airflow requirement.
*Minimum filter area dictated by heating airflow requirement.
Disposable Minimum Filter Area (in2)
Permanent Minimum Filter Area (in2)
[Based on a 300 ft/min filter face velocity]
[Based on 600 ft/min filter face velocity]
10
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PRODUCT DESIGN
Dual $aver Configuration & Operation
Dual $aver
This furnace is capable fo the following heating modes:
• Single Stage (Factory Setting)
• Modified Two-Stage
> Fixed 5-Min. Low Stage
> Auto Time (1-12 Min.) Low Stage
To change from the factory single-stage operation,
adjust the dipswitches on the ignition control as follows:
OFF
ON
Mode
Mode Dipswitch
5 Min. Fixed
Auto
2nd Stage Delay
Dipswitch
Note: This furnace is designed to be used
with a single-stage room thermosat.
Start
Start
Call for Heat
Call for Heat
Safety Circuit Check
Safety Circuit Check
Start Furnace
in Low Stage
Start Furnace
in Low Stage
Low-Heat Blower
Low-Heat Blower
Delay Time (5 Min)
Delay Time (1-12 Min)
Gas Valve Switch
to 2nd Stage
Gas Valve Switch
to 2nd Stage
Blower Switch to
Hi Heat Operation
Blower Switch to
Hi Heat Operation
T-Stat Satisfied
T-Stat Satisfied
11
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FURNACE SPECIFICATIONS
GCH9
MODEL
GCH90453BX
GCH90703BX GCH90704BX GCH90904CX GCH90905CX GCH91155DX
Btuh Input (US)
Output (US)
46,000
42,800
38,502
93
69,000
64,400
57,753
93
69,000
64,400
57,753
93
92,000
86,000
77,004
93
92,000
86,000
77,004
93
115,000
106,500
96,255
93
BTUH Output (US) LP
A.F.U.E.
Rated External Static (" w.c.)
Temperature Rise (°F)
Pressure Switch Trip Point (" w.c.)
Front Cover Pressure Switch Trip Point (" w.c)
Blower Wheel (D" x W")
Blower Horsepower
.20" - .50"
35-65
-0.60
-0.60
10 X 8
1/3
.20" - .50"
35-65
-0.60
-0.60
10 X 8
1/3
.20" - .50"
35-65
-0.37
-0.37
10 X 10
1/2
.20" - .50"
35-65
-0.60
-0.60
10 X 10
1/2
.20" - .50"
35-65
-0.37
-0.37
11 X 10
3/4
.20" - .50"
35-65
-0.60
-0.60
11 x 10
3/4
Blower Speeds
4
4
4
4
4
4
Max CFM @ 0.5 E.S.P.
Power Supply
1,200
115-60-1
9.40
15
1,200
115-60-1
9.40
15
1,600
115-60-1
13.80
15
1600
115-60-1
13.80
15
2000
115-60-1
13.20
15
2000
115-60-1
13.20
15
Minimum Circuit Ampacity (MCA)(1)
Maximum Overcurrent Device(2)
Transformer (VA)
40
40
40
40
40
40
Primary Limit Setting (°F)
Auxiliary Limit Setting (°F)
Rollout Limit Setting (°F)
Fan Delay On Heating
170
170
170
150
170
155
160
160
170
160
170
160
210
210
210
220
220
210
30
30
30
30
30
30
Off Heating(3)
150
150
150
150
150
150
Fan Delay On Cooling
5
5
5
5
5
5
Off Cooling
45
45
45
45
45
45
Fan Delay On - Fan Only
Gas Supply Pressure (Natural/Propane) (" w.c.)
Manifold Pressure (Natural/Propane)
Orifice Size (Natural/Propane)
Number of Burners
0
0
0
0
0
0
7/11
3.5/10
43/55
2
7/11
3.5/10
43/55
3
7/11
3.5/10
43/55
3
7/11
3.5/10
43/55
4
7/11
3.5/10
43/55
4
7/11
3.5/10
43/55
5
Vent Connector Diameter (inches) (4)
Shipping Weight (lbs.)
2
2
2
2
2
2
132
135
136
158
172
178
(1) Wire size should be determined in accordance with National Electrical Codes. Extensive wire runs will require larger wire sizes.
(2) Maximum Overcurrent Protection Device: May use Time Delay Fuse or HACR type Circuit Breaker of the same size as noted.
(3) Off Heating - this fan delay timing is adjustable (100 or 150 seconds), 150 seconds as shipped.
(4) See Installation Instructions for appropriate vent diameter, length and number of elbows.
NOTE: This data is provided as a guide, it is important to electrically connect the unit and properly size fuses/circuit breakers and wires in
accordance with all national and/or local electrical codes. Use copper wire only.
1. These furnaces are manufactured for natural gas operation. Optional kits are available for conversion to propane operation.
2. For elevations above 2000 feet the rating should be reduced by 4% for each 1000 feet above sea level. The furnace must not be derated, orifice changes should only
be made if necessary for altitude.
3. The total heat loss from the structure as expressed in TOTAL BTU/HR must be calculated by the manufacturers method or in accordance with the "A.S.H.R.A.E.
GUIDE" or "MANUAL J-LOAD CALCULATIONS" published by the AIR CONDITIONING CONTRACTORS OF AMERICA. The total heat loss calculated should be equal
to or less than the heating capacity. Output based on D.O.E. test procedures.
4. Minimum Circuit Ampacity calculated as: (1.25 x Circulator Blower Amps) + I.D. Blower Amps.
Unit specifications are subject to change without notice. ALWAYS refer to the units serial plate for the most up-to-date general and electrical information.
12
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BLOWER PERFORMANCE SPECIFICATIONS
BLOWER PERFORMANCE
(CFM & Temperature Rise vs. External Static Pressure)
EXTERNAL STATIC PRESSURE (Inches Water Column)
0.2 0.3 0.4 0.5
Tons AC
at 0.5"
Model
Motor
Speed
0.1
0.6 0.7 0.8
Heating Speed
( As Shipped )
ESP CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM
HIGH
MED
3.0
2.5
2.0
1.5
3.0
2.5
2.0
1.5
4.0
3.5
3.0
2.5
4.0
3.5
3.0
2.5
5.0
4.0
3.5
3.0
5.0
4.0
3.5
3.0
1352 29 1318 30 1260 31 1202 33 1128 35 1044 955 853
1214 32 1172 34 1123 35 1064 37 1012 39 938 859 741
997 40 994 40 960 41 923 43 884 45 817 741 611
757 52 753 52 734 54 704 56 674 59 620 524 438
1449 41 1409 42 1326 45 1273 47 1201 49 1194 1136 1018
1192 50 1172 51 1141 52 1094 54 1046 57 973 904 793
981 61 962 62 943 63 917 65 888 67 830 764 665
750 79 730 81 714 83 692 86 657 90 620 570 502
2069 29 1965 30 1871 32 1756 34 1661 36 1549 1415 1275
1752 34 1724 34 1667 36 1603 37 1488 40 1402 1290 1082
1437 41 1437 41 1417 42 1369 43 1320 45 1256 1140 984
1184 50 1177 50 1161 51 1132 52 1095 54 1047 928 837
1970 40 1874 42 1757 45 1667 48 1566 51 1431 1334 1182
1713 46 1650 48 1572 50 1510 52 1418 56 1313 1211 1079
1439 55 1412 56 1370 58 1327 60 1260 63 1166 1078 956
1183 67 1155 69 1122 71 1108 72 1062 75 1011 931 816
2147 37 2114 37 2057 39 2030 39 1978 40 1889 1784 1713
1675 47 1686 47 1640 48 1623 49 1557 51 1501 1455 1360
1489 53 1470 54 1436 55 1409 56 1361 58 1318 1243 1130
1307 61 1265 63 1234 64 1203 66 1168 68 1096 1053 991
2134 46 2103 47 2029 48 1941 51 1906 51 1818 1733 1625
1678 58 1643 60 1643 60 1577 62 1527 64 1489 1423 1339
1453 68 1440 68 1426 69 1363 72 1349 73 1314 1253 1205
1259 78 1239 79 1220 80 1181 83 1159 85 1118 1082 1015
GCH90453BXA*
(MED-HI)
MED-LO
LOW
HIGH
MED
GCH90703BXA*
(MED-HI)
MED-LO
LOW
HIGH
MED
GCH90704CXA*
(MED-HI)
MED-LO
LOW
HIGH
MED
GCH90904CXA*
(MED-HI)
MED-LO
LOW
HIGH
MED
GCH90905DXA*
(MED-HI)
MED-LO
LOW
HIGH
MED
GCH91155DXA*
(MED-HI)
MED-LO
LOW
1. CFM in chart is without filters(s). Filters do not ship with this furnace, but must be provided by the installer.
2. All furnaces ship as high speed cooling. Installer must adjust blower cooling speed as needed.
3. For most jobs, about 400 CFM per ton when cooling is desirable.
4. INSTALLATION IS TO BE ADJUSTED TO OBTAIN TEMPERATURE RISE WITHIN THE RANGE SPECIFIED ON THE RATING PLATE.
5. The chart is for information only. For satisfactory operation, external static pressure must not exceed value shown on rating plate. The shaded
area indicates ranges in excess of maximum external static pressure allowed when heating. The data for 0.6" w.c. to 0.8" w.c. is shown for
air conditioning purposes only.
6
The dashed (---) areas indicate a temperature rise not recommended for this model.
7. The above chart is for U.S. furnaces installed at 0-4000 feet. At higher altitudes, a properly derated unit will have approximately the same
temperature rise at a particular CFM, while the ESP at that CFM will be lower.
13
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BLOWER PERFORMANCE SPECIFICATIONS
E S I R E R U A T E R P M E T
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WIRING DIAGRAMS
GCH9*****X[AA,AB]
BLOWER
INTEGRATED
HUMIDIFIER
24 VAC
HUMIDIFIER
OR
COMPARTMENT
DOOR SWITCH
(OPEN WHEN
DOOR OPEN)
CONTROL MODULE
GY
TR (6)
GND
24 VAC
GND (8)
MVC (9)
C
GAS
VALVE
HI
115 VAC
MVH (12)
MVL(2)
24V THERMO T
STA
PM
CONNECTIONS
C
C
NO
C
G
R
W
Y
ID BLOWER
PRESSURE
SWITCH
FRONT COVER
PRESSURE SWITCH
WH
BK
G
Y
NO
PS (10)
C
PSO(4)
HLI (7)
TO
MICRO
OR
FUSE
GY
3
6
1
4
2
5
PK
OR
W
HLO (1)
INTEGRATED
CONTROL
MODULE
9
8
7
BL
YL
R
RO2 (11)
RO1 (5)
GR
ON
OFF
11
12
10
2ND
STAGE
DELAY
OR
BR
OR
*
GY
OR
MODE
RD
GY
*
TH (3)
24 VAC
HEAT
OFF
DELAY
40 VA
TRANSFORMER
*
FACTORYSETTINGS
SHOWN
WH
FS
XFMR-H
115 VAC
FLAME SENSOR
SEE
NOTE 6
DIAGNOSTIC
LED
*
2
1
FS
WH
HOT SURFACE
IGNITER
115 VAC HOT AND PARK TERMINALS
COOL-H
HEAT-H
IGN
BK
LINE-H
SEE
NOTE 4
GND
WH
ID
BLWR
BK (HI)
BL (MED)
OR (MED LOW)
RD (LOW)
IND
PK
YL
RD
BK
COOL-H
CIRCULATOR
BLWR
BR
BR
CAPACITOR
PU
ELECTRONIC
AIR CLEANER
BLOWER COMPARTMENT
BURNER COMPARTMENT
GND
EAC-H
LINE-H
MANUAL RESET
AUXILIARY LIMITS
(1) IN UPFLOW
BLOWER DECK
(2) IN C'FLOW
JUNCTION BOX
DOOR
SWITCH
BK
BLOWER HOUSING
WH
WH
INDUCED DRAFT
BLOWER
DISCONNECT
WH
PU
BL
GND
Ø /60 HZ POWER SUPPLY WITH
L
N
YL
TO 115VAC/ 1
OR
PK
RD
OR
OVERCURRENT PROTECTION DEVICE
N
O
C
RD
WH
ID BLOWER
PRESSURE
SWITCH
JUNCTION
BOX
BL
24 VAC
HUMIDIFIER
FRONT COVER
PRESSURE SWIT
CH
GY
N
O
C
1
2 CIRCUIT
CONNECTOR
PM
GY
BR
N
WH
BK
GND
GR
GND
HOT
SURFACE
IGNITER
2
C
L
FLAME
3
OR
HI
SENSOR
GAS VALVE
0
STEADY ON = NORMAL OPERATION
LOW VOLTAGE (24V)
LOW VOLTAGE FIELD
HI VOLTAGE (115V)
HI VOLTAGE FIELD
JUNCTION
EQUIPMENT GND
FIELD GND
OFF
= CONTROL FAILURE
1
2
3
4
5
6
1 FLASH
=
2 FLASHES = PRESSURE SWITCH STUCK CLOSED
3 FLASHES = PRESSURE SWITCH STUCK OPEN
FIELD SPLICE
SWITCH (TEMP.)
4 FLASHES = OPEN HIGH LIMIT
5 FLASHES = FLAME SENSE WITHOUT GAS VALVE
6 FLASHES =
IGNITER
TERMINAL
SWITCH (PRESS.)
INTERNAL TO
INTEGRATED CONTROL
7 FLASHES = LOW FLAME SIGNAL
7
8
C
OVERCURRENT
PROT. DEVICE
8 FLASHES = CHECK IGNITER OR IMPROPER GROUNDING
CONTINUOUS/RAPID FLASHES = REVERSED 115 VAC POLARITY
PLUG CONNECTION
NOTES:
PK PINK
COLOR CODES:
YL YELLOW
1. SET HEAT ANTICIPATOR ON ROOMTHERMOSTAT AT 0.7 AMPS.
2. MANU 'S SPEC PARTS MUST BE USED WHEN SE
BR BROWN
WH WHITE
BL BLUE
GY GRAY
RD RED
FACTURER IFIEDREPLACEMENT RVICING.
3. IF ANY OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BEREPLACED, IT MUST BE REPLACED WITH WIRING MATERIAL
°C. USE COPPERCONDUCTORS ONLY.
OR ORANGE
HAVING A TEMPERATURERATING OF AT LEAST 105
4. IF HEATING AND COOLINGBLOWER SPEEDS ARE NOT THE SAME, DISCARD JUMPERBEFORECONNECTING BLOWER LEADS. UNUSED
BLOWER LEAD T BE PLA ON "PAR TERMIN OF INTEGRATED CO TROL OR TAPED.
PU PURPLE
GN GREEN
S MUS CED K" ALS
N
BK BLACK
5. UNIT MUST BE PERMANENTLY GROUNDED AND CONFORMTO N.E.C. ANDLOCAL CODES.
6. TO RECALL THE LAST 5 FAULTS, MOST RECEN T TO LEAST RECENT, DEPRESS SWITCH FOR MORE THAN 2 SECONDS WHILE IN
STANDBY (NO THERMOSTAT INPUTS)
0140F00592 REV. A
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
15
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WIRING DIAGRAMS
GCH9*****XAC
BLOWER
INTEGRATED
CONTROLMODULE
HUMIDIFIER
24VAC
HUMIDIFIER
OR
COMPARTMENT
DOORSWITCH
(OPENWHEN
DOOROPEN)
GY
TR(6)
C
GND
24VAC
GAS
VALVE
GND(8)
MVC(9)
40VA
TRANSFORMER
HI
PM
115VAC
MVH(12)
24VTHERMOSTAT
CONNECTIONS
AUXILIARYLIMITCONTROLS
C
C
G
R
W
Y
C
MVL(2)
WH
NO
FRONTCOVER
PRESSURESWITCH
BK
G
Y
PS(10)
PSO(4)
HLI(7)
TO
MICRO
OR
FUSE
GY
3
6
1
4
2
5
PU
OR
W
HLO(1)
INTEGRATED
CONTROL
MODULE
NO
C
AUTORESETPRIMARY
LIMITCONTROL
9
8
7
BL
YL
R
IDBLOWER
PRESSURE
SWITCH
GR
RO2(11)
ON
OFF
11
12
10
2ND
STAGE
DELAY
RO1(5)
OR
BR
OR
MANUALRESETROLLOUT
LIMITCONTROL(S)
(SINGLECONTROLON45KBTU)
*
*
GY
OR
MODE
RD
GY
TH(3)
24VAC
HEAT
OFF
DELAY
40VA
*
TRANSFORMER
FACTORYSETTINGS
SHOWN
*
WH
FS
XFMR-H
115VAC
FLAMESENSOR
SEE
DIAGNOSTIC
LED
NOTE6
2
1
FS
WH
HOTSURFACE
IGNITER
115VACHOTANDPARKTERMINALS
COOL-H
HEAT-H
IGN
BK
LINE-H
SEE
GND
NOTE4
WH
ID
GY
BLWR
BK(HI)
BL(MED)
OR(MEDLOW)
RD(LOW)
IND
PK
RD
L
O
H
E
A
T
-
H
BK
CIRCULATOR
BLOWER
COOL-H
CIRCULATOR
BLWR
BR
BR
YL
I
H
H
-
T
A
E
H
CAPACITOR
GY
PU
ELECTRONIC
AIRCLEANER
BLOWERCOMPARTMENT
BURNERCOMPARTMENT
GND
EAC-H
LINE-H
JUNCTIONBOX
DOOR
SWITCH
BK
WH
WH
WARNING:
INDUCEDDRAFT
BLOWER
DISCONNECTPOWER
BEFORESERVICING.
WIRINGTOUNIT
MUSTBE
PROPERLY
POLARIZED
DISCONNECT
WH
BL
AUTORESET
PRIMARYLIMIT
CONTROL
PU
ANDGROUNDED.
GND
Ø/60HZPOWERSUPPLYWITH
L
N
YL
TO115VAC/1
OR
PK
RD
OR
OVERCURRENTPROTECTIONDEVICE
N
O
C
RD
WH
WARNING:DISCONNECTPOWERBEFORE
SERVICING.WIRINGTOUNITMUSTBE
PROPERLYPOLARIZEDANDGROUNDED.
MANUALRESETROLLOUTLIMITCONTROL(S)
(SINGLECONTROLON45KBTU)
IDBLOWER
PRESSURE
SWITCH
JUNCTION
BOX
BL
24VAC
HUMIDIFIER
FRONTCOVER
PRESSURESWITCH
N
O
C
1
2CIRCUIT
CONNECTOR
PM
GY
GY
N
WH
BK
GR
GND
GND
HOT
SURFACE
IGNITER
2
C
OR
L
FLAME
SENSOR
3
BR
DISCONNECT
HI
GASVALVE
(HONEYWELL)
0
1
STEADYON=NORMALOPERATION
LOWVOLTAGE(24V)
LOWVOLTAGEFIELD
HIVOLTAGE(115V)
HIVOLTAGEFIELD
JUNCTION
EQUIPMENTGND
FIELDGND
OFF
=CONTROLFAILURE
1FLASH
=
SYSTEMLOCKOUT(RETRIESEXCEEDED)
2FLASHES =PRESSURESWITCHSTUCKCLOSED
3FLASHES =PRESSURESWITCHSTUCKOPEN
2
3
4
5
6
FIELDSPLICE
SWITCH(TEMP.)
4FLASHES =OPENHIGHLIMIT
5FLASHES =FLAMESENSEWITHOUTGASVALVE
IGNITER
TERMINAL
6FLASHES =
OPENROLLOUTOROPENFUSE
SWITCH(PRESS.)
INTERNALTO
INTEGRATEDCONTROL
7FLASHES =LOWFLAMESIGNAL
7
8
C
OVERCURRENT
PROT.DEVICE
8FLASHES =CHECKIGNITERORIMPROPERGROUNDING
CONTINUOUS/RAPIDFLASHES=REVERSED115VACPOLARITY
PLUGCONNECTION
NOTES:
PKPINK
COLORCODES:
YLYELLOW
ORORANGE
1.SETHEATANTICIPATORONROOMTHERMOSTATAT0.7AMPS.
BRBROWN
WHWHITE
BLBLUE
2.MANUFACTURER'SSPECIFIEDREPLACEMENTPARTSMUSTBEUSEDWHENSERVICING.
3.IFANYOFTHEORIGINALWIREASSUPPLIEDWITHTHEFURNACEMUSTBEREPLACED,ITMUSTBEREPLACEDWITHWIRINGMATERIAL
°C.USECOPPERCONDUCTORSONLY.
HAVINGATEMPERATURERATINGOFATLEAST105
PUPURPLE
GNGREEN
BKBLACK
4.IFHEATINGANDCOOLINGBLOWERSPEEDSARENOTTHESAME,DISCARDJUMPERBEFORECONNECTINGBLOWERLEADS.UNUSED
BLOWERLEADSMUSTBEPLACEDON"PARK"TERMINALSOFINTEGRATEDCONTROLORTAPED.
GYGRAY
RDRED
5.UNITMUSTBEPERMANENTLYGROUNDEDANDCONFORMTON.E.C.ANDLOCALCODES.
6.TORECALLTHELAST5FAULTS,MOSTRECENTTOLEASTRECENT,DEPRESSSWITCHFORMORETHAN2SECONDSWHILEIN
STANDBY(NOTHERMOSTATINPUTS)
0140F00647REV.B
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
16
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