Furnace specifications, Gch9 – Goodman Mfg 40'' 95% Gas Furnace GCH9 User Manual
Page 12

FURNACE SPECIFICATIONS
12
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.
(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.
GCH9
MODEL
GCH90453BX
GCH90703BX
GCH90704BX
GCH90904CX
GCH90905CX
GCH91155DX
Btuh Input (US)
46,000
69,000
69,000
92,000
92,000
115,000
Output (US)
42,800
64,400
64,400
86,000
86,000
106,500
BTUH Output (US) LP
38,502
57,753
57,753
77,004
77,004
96,255
A.F.U.E.
93
93
93
93
93
93
Rated External Static (" w.c.)
.20" - .50"
.20" - .50"
.20" - .50"
.20" - .50"
.20" - .50"
.20" - .50"
Temperature Rise (°F)
35-65
35-65
35-65
35-65
35-65
35-65
Pressure Switch Trip Point (" w.c.)
-0.60
-0.60
-0.37
-0.60
-0.37
-0.60
Front Cover Pressure Switch Trip Point (" w.c)
-0.60
-0.60
-0.37
-0.60
-0.37
-0.60
Blower Wheel (D" x W")
10 X 8
10 X 8
10 X 10
10 X 10
11 X 10
11 x 10
Blower Horsepower
1/3
1/3
1/2
1/2
3/4
3/4
Blower Speeds
4
4
4
4
4
4
Max CFM @ 0.5 E.S.P.
1,200
1,200
1,600
1600
2000
2000
Power Supply
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
115-60-1
Minimum Circuit Ampacity (MCA)
(1)
9.40
9.40
13.80
13.80
13.20
13.20
Maximum Overcurrent Device
(2)
15
15
15
15
15
15
Transformer (VA)
40
40
40
40
40
40
Primary Limit Setting (°F)
170
170
170
150
170
155
Auxiliary Limit Setting (°F)
160
160
170
160
170
160
Rollout Limit Setting (°F)
210
210
210
220
220
210
Fan Delay On Heating
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
0
0
0
0
0
0
Gas Supply Pressure (Natural/Propane) (" w.c.)
7/11
7/11
7/11
7/11
7/11
7/11
Manifold Pressure (Natural/Propane)
3.5/10
3.5/10
3.5/10
3.5/10
3.5/10
3.5/10
Orifice Size (Natural/Propane)
43/55
43/55
43/55
43/55
43/55
43/55
Number of Burners
2
3
3
4
4
5
Vent Connector Diameter (inches)
(4)
2
2
2
2
2
2
Shipping Weight (lbs.)
132
135
136
158
172
178