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Warning – Goodman Mfg GAS-FIRED WARM AIR FURNACE GKS9 User Manual

Page 15

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15

E

DGES

OF

SHEET

METAL

HOLES

MAY

BE

SHARP

. U

SE

GLOVES

AS

A

PRECAUTION

WHEN

REMOVING

HOLE

PLUGS

.

WARNING

A

LTERNATE

V

ENT

/F

LUE

L

OCATION

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

1. Remove and save the four screws securing the vent/flue

coupling to the furnace top panel.

2. 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. 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.

FLANGE

CUT

HERE

3.75"

Vent/Flue Pipe Cuts

5. Remove plastic plug from alternate vent/flue location.

Relocate and install plug in standard vent/flue location (top
cover).

6. 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.

T

HE

RUBBER

ELBOW

IS

NOT

DESIGNED

TO

SUPPORT

A

LOAD

. W

HEN

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

.

WARNING

7. 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. 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.

UPFLOW

REMOVE

4 SCREWS

3

REMOVE

PIPE

2

DETACH RUBBER

ELBOW FROM

ID BLOWER AND

VENT/FLUE

PIPE

5

REMOVE

AND RELOCATE

1

UPFLOW/HORIZONTAL

6

SECURE TO

ID BLOWER WITH

RUBBER COUPLING

AND HOSE

CLAMPS

6

SECURE TO

CABINET WITH

SCREWS

Alternate Vent/Flue Location

N

ON

-D

IRECT

V

ENT

(S

INGLE

P

IPE

) P

IPING

Non-direct vent installations require only a vent/flue pipe. The vent
pipe can be run horizontally with an exit through the side of the
building or run vertically with an exit through the roof of the building.
The vent can also be run through an existing unused chimney;
however, it must extend a minimum of 12 inches above the top of
the chimney. The space between the vent pipe and the chimney
must be closed with a weather-tight, corrosion-resistant flashing.
For details concerning connection of the vent/flue pipe to the fur-
nace, refer to Section IX, Vent/Flue Pipe and Combustion Air -
Standard Furnace Connections or Alternate Furnace Connections
for specific details. Refer to the following Non-Direct Vent (Single
Pipe) Piping - Vent/Flue Pipe Terminations
for specific details on
termination construction.
Although non-direct vent installations do not require a combustion
air intake pipe, a minimum of one 90° elbow should be attached to
the furnace’s combustion air intake if: an upright installation uses
the standard intake location. This elbow will guard against inad-
vertent blockage of the air intake.

V

ENT

/F

LUE

P

IPE

L

ENGTHS

AND

D

IAMETERS

Refer to the following table for applicable length, elbows, and pipe
diameter for construction of the vent/flue pipe system of a non-
direct vent installation. In addition to the vent/flue pipe, a single 90°
elbow should be secured to the combustion air intake to prevent
inadvertent blockage. The tee used in the vent/flue termination
must be included when determining the number of elbows in the
piping system.