Goodman Mfg GCH9 service manual Furnace Specifications

FURNACE SPECIFICATIONS							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

(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.

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