Goodman Mfg GAS-FIRED WARM AIR FURNACE Standard Connections, Counterflow units

COMBUSTION				COMBUSTION	VENT/FLUE
	VENT/FLUE			AIR PIPE
AIR PIPE					PIPE
		PIPE	(DIRECT VENT ONLY)
(DIRECT VENT ONLY)
90º PVC	RUBBER		90º PVC	RUBBER
ELBOW	COUPLING		ELBOW	COUPLINGS
(NON-DIRECT VENT)	WITH WORM		(NON-DIRECT VENT)	WITH WORM
	GEAR CLAMPS			GEAR CLAMPS

OR OR

UPFLOW COUNTERFLOW

STANDARD CONNECTIONS

ALTERNATE FURNACE CONNECTIONS

If the standard locations are undesirable for a specific installation, alternate side panel locations are available on the upflow models for the vent/flue. Counterflow furnaces include provisions for both alter- nate vent/flue and combustion air piping. These locations may be of particular benefit to upright upflow installations requiring additional access to an A coil, or to upright counterflow installations requiring additional access to a filter or electronic air cleaner, or to horizontal installations desiring vent/flue (upflow and counterflow) and combus- tion air intake (counterflow only) piping run vertically from the side of the cabinet.

NOTE: Standard and alternate locations can be combined (i.e., an installation may use the standard combustion air intake location but use the alternate vent/flue location), if needed.

WARNING

EDGES OF SHEET METAL HOLES MAY BE SHARP. USE GLOVES AS A PRECAUTION WHEN REMOVING HOLE PLUGS.

ALTERNATE VENT/FLUE LOCATION

The alternate vent/flue location is the large hole directly in line with the induced draft blower outlet. To use the alternate vent/flue location refer to the following steps, the “Vent/Flue Pipe Cuts” figure, and the “Alternate Vent/Flue Location” figure.

NOTE: Counterflow instructions follow the upflow instructions.

1.Remove and save the four screws securing the vent/flue coupling to the furnace top panel.

Counterflow units.

1.Remove and save the four screws securing the vent/flue coupling to the furnace basepan. Also remove the three screws securing the furnace’s internal vent/flue piping to the blower deck.

2.Upflow and Counterflow units.

Loosen the worm gear hose clamps on the rubber elbow and detach it from both the induced draft blower and the vent/flue pipe.

3.Upflow and Counterflow units.

Remove the vent/flue pipe from the furnace.

4.Cut the vent/flue pipe 3.75 inches from the flanged end of the pipe. See Vent/Flue Pipe Cuts figure. The section of pipe attached to the coupling will reach through the side panel to the induced draft blower. Discard remaining pipe and elbows.

Counterflow units.

Cut the vent/flue pipe 3.75 inches from the blower deck coupling. See Vent/Flue Pipe Cuts figure. Save vent/flue pipe attached to blower deck coupling for use in the alternate location. Discard remaining pipe and elbows.

FLANGE

3.75"

CUT HERE

Vent/Flue Pipe Cuts

5.Remove plastic plug from alternate vent/flue location. Relocate and install plug in standard vent/flue location (top cover). Counterflow units.

Remove plastic plug from alternate vent/flue location. Relocate and install plug in standard vent/flue location (basepan). Plug remaining hole in blower deck with plastic plug included in the drain kit bag.

6.Upflow and Counterflow units.

Insert cut section of vent/flue pipe and coupling into alternate vent/flue location. Using a rubber coupling and worm gear hose clamps from the drain kit bag, attach the vent/flue pipe and coupling to the induced draft blower. Secure the coupling to the cabinet using the screws removed in step 1 or with field-supplied 3/8” #8 self drilling screws.

WARNING

THE RUBBER ELBOW IS NOT DESIGNED TO SUPPORT A LOAD. WHEN THE RUBBER ELBOW IS MOUNTED EXTERNALLY TO THE FURNACE CABINET, EXTREME CARE MUST BE TAKEN TO ADEQUATELY SUPPORT FIELD-SUPPLIED VENT/FLUE PIPING, AS DAMAGE CAN RESULT IN LEAKS CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO FLUE GASES, INCLUDING CARBON MONOXIDE.

7.Upflow and Counterflow units.

For upright installations, externally mount the rubber elbow to the vent/flue coupling using a worm gear hose clamp. Secure field supplied vent/flue piping to the rubber elbow using a worm gear hose clamp. NOTE: Use of the alternate vent/flue location for upright installations, requires the drain trap be installed on the same side of the unit as the flue pipe.

8.Upflow and Counterflow units.

For horizontal installations, externally secure the field- supplied vent/flue pipe directly to the vent/flue coupling using a PVC or ABS coupling or elbow.

3	1	1.	3
	REMOVE	REMOVE	REMOVE
REMOVE
	4 SCREWS	4 SCREWS	PIPE		4
PIPE
					CUT PIPE PER
	4			VENT/FLUE PIPE CUTS
					DIAGRAM
	CUT PIPE PER
	VENT/FLUE				1
	PIPE CUTS				REMOVE
	DIAGRAM				3 SCREWS
	5
					5
	REMOVE
					REMOVE
	AND RELOCATE
					AND RELOCATE
	2
	DETACH RUBBER				2
	ELBOW FROM
					DETACH RUBBER
	ID BLOWER AND
					ELBOW FROM
	VENT/FLUE
					ID BLOWER AND
	PIPE
					VENT/FLUE
UPFLOW		COUNTERFLOW			PIPE

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