Goodman Mfg GAS-FIRED WARM AIR FURNACE Permanent Minimum Filter Area sq. in, Filter Locations

		COOLING AIRFLOW REQUIREMENT (CFM)
		600	800	1000	1200	1400	1600	2000
	040_3BXA	194*	194*	240	288	---	---	---
	0453BXA
InputAirflow	060_3BXA	---	324*	324*	324*	336	---	---
	0703BXA
	080_5CXA	---	---	291*	291*	336	384	---
	0704CXA
	0904CXA	---	---	432*	432*	432*	432*	---
	0905DXA	---	---	---	388*	388*	388*	480
	100_5DXA	---	---	---	486*	486*	486*	486*
	1155DXA

*Minimum filter area dictated by heating airflow requirement.

Permanent Minimum Filter Area (sq. in)

[Based on a 600 ft/min filter face velocity]

FILTER

ACCESS

DOOR

RETURN

DUCT

FILTER

SUPPORT BRACKET (PROVIDED)

FILTER

R FILTE

FILTER

CENTRAL

RETURN

GRILLE

		COOLING AIRFLOW REQUIREMENT (CFM)
		600	800	1000	1200	1400	1600	2000
	040_3BXA	388*	388*	480	576	---	---	---
	0453BXA
InputAirflow	060_3BXA	---	647*	647*	647*	672	---	---
	0703BXA
	080_5CXA			583*	583*	672	768
	0704CXA
	0904CXA	---	---	863*	863*	863*	863*	---
	0905DXA	---	---	---	777*	777*	777*	960
	100_5DXA	---	---	---	971*	971*	971*	971*
	1155DXA

*Minimum filter area dictated by heating airflow requirement.

Disposable Minimum Filter area (sq. in)

[Based on 300 ft/min filter face velocity]

UPRIGHT INSTALLATIONS

Depending on the installation and/or customer preference, differing filter arrangements can be applied. Filters can be installed in the cen- tral return register or a side panel external filter rack kit (upflows). As an alternative a media air filter or electronic air cleaner can be used as the requested filter.

The following figure shows possible filter locations.

AIR FLOW

CENTRAL

RETURN

GRILLE

FILTER	SIDE RETURN
	EXTERNAL FILTER
	RACK KIT
	(EITHER SIDE)
	FILTER

Possible Upright Upflow

AIR FLOW

Possible Upright Counterflow

Filter Locations

NOTE: Internal filter retention is not provided on this furnace.

HORIZONTAL INSTALLATIONS

Filters must be installed in either the central return register or in the return air duct work.

XIV. STARTUP PROCEDURE & ADJUSTMENT

Furnace must have a 115 VAC power supply properly connected and grounded. Proper polarity must be maintained for correct op- eration. In addition to the following start-up and adjustment items, refer to further information in Section XVI, Operational Checks.

HEAT ANTICIPATOR SETTING

The heat anticipator in the room thermostat must be correctly ad- justed to obtain the proper number of cycles per hour and to pre- vent “overshooting” of the setting. Set the heat anticipator setting to

0.7amps. Follow the thermostat manufacturer’s instructions on how to adjust the heat anticipator setting.

DRAIN TRAP PRIMING

The drain trap must be primed prior to furnace startup. To prime, fill the drain trap with water. This ensures proper furnace drainage upon startup and prohibits the possibility of flue gases escaping through the drain system. Air conditioning condensate may be drained into the furnace trap.

FURNACE OPERATION

Purge gas lines of air prior to startup. Be sure not to purge lines into an enclosed burner compartment. Follow NFPA 54, National Fuel Gas Code 8.3 for proper purging methods. In Canada, follow approved purging methods in B149.1

Check for leaks using an approved chloride-free soap and water solution, an electronic combustible gas detector, or other approved method. Verify that all required kits (propane gas, high altitude, etc.) have been appropriately installed.

FURNACE STARTUP

1.Close the manual gas shutoff valve external to the furnace.

2.Turn off the electrical power to the furnace.

3.Set the room thermostat to the lowest possible setting.

4.Remove the burner compartment door.

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