Goodman *MSS9* Installation Instructions Manual page 14

N -D V I
ON IRECT ENT NSTALLATIONS
A minimum of one 90° elbow should be installed on the combus-
tion air intake "coupling" to guard against inadvertent blockage.
A V /F L
LTERNATE ENT LUE 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 and the "Alternate Vent/Flue Loca-
tion" figure. To use an alternate vent location on a counterflow
/ horizontal model, a special kit is required.
NOTE: In the horizontal left installation position, a means of
condensate collection must be provided to keep vent pipe con-
densate from entering the draft inducer housing. If the vent
drain elbow is eliminated from the installation, an RF000142 kit
must be used.
1. Remove the four screws from the vent pipe flange on top
the furnace.
2. Remove the internal elbow and vent pipe
3. Cut 2 1/2" from the flange .
4. Remove plastic plug in line with the inducer outlet
5. Install cut end of the flanged section and connect to inducer
with rubber coupling supplied with furnace.
6. Install screws removed in step 1 securing flange to cabinet.
T
HE RUBBER ELBOW IS NOT DESIGNED TO SUPPORT A LOAD
RUBBER ELBOW IS MOUNTED EXTERNALLY TO THE FURNACE CABINET
EXTREME CARE MUST BE TAKEN TO ADEQUATELY SUPPORT FIELD
/ ,
SUPPLIED VENT FLUE PIPING
CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO FLUE GASES
INCLUDING CARBON MONOXIDE
A C
LTERNATE OMBUSTION
(Upflow / Horizontal models only)
When using the alternate venting location, either in a hori-
zontal left side down installation or a vertical installation us-
ing down – venting, an alternate combustion air opening can
be used. A locating dimple is located on the right side of the
furnace cabinet. The locating dimple is 1 7/8" measured from
the front edge of the cabinet in line with the knock out. To
use the alternate combustion air location:
1. Remove screws and combustion air flange from cabinet.
2. Insert cabinet plug in unused combustion air hole.
3. Drill a pilot hole at the cabinet dimple (size dictated by
knockout tool used).
4. Use a knockout tool to create a 3" diameter hole
5. Install combustion air flange and secure with screws
removed in step one.
WARNING
. W
AS DAMAGE CAN RESULT IN LEAKS
A P
IR ROVISION
E
DGES OF SHEET METAL HOLES MAY BE SHARP
PRECAUTION WHEN REMOVING HOLE PLUGS
R 000142 F
HEN THE
,
-
,
T
HE RUBBER ELBOW IS NOT DESIGNED TO SUPPORT A LOAD
RUBBER ELBOW IS MOUNTED EXTERNALLY TO THE FURNACE CABINET
EXTREME CARE MUST BE TAKEN TO ADEQUATELY SUPPORT FIELD
SUPPLIED VENT
CAUSING BODILY INJURY OR DEATH DUE TO EXPOSURE TO FLUE GASES
INCLUDING CARBON MONOXIDE
B
E SURE NOT TO DAMAGE INTERNAL WIRING OR OTHER COMPONENTS
WHEN REINSTALLING COUPLING AND SCREWS
14
WARNING
.
Insert flange. Cut 2 ½" long.
Figure 9
Figure 10
Vent/Flue Pipe Cuts
WARNING
/ ,
FLUE PIPING AS DAMAGE CAN RESULT IN LEAKS
CAUTION
. U
SE GLOVES AS A
. W
HEN THE
,
-
,
.