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COMBUSTION AND VENTILATION AIR
(DIRECT/NON-DIRECT VENT MODELS)
2. Upflow and Counterflow units .
Loosen the worm gear hose clamps on the rubber el-
bow 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 at the elbow nearest the coupling
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. Dis-
card unused pipe and elbows.
Counterflow units.
Cut the vent/flue pipe 3.718 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 el-
bows.
COUPLING
CUT AT ELBOW
NEAREST COUPLING
ELBOWS
UPFLOW
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 plas-
tic plug included in the drain kit bag.
6. Upflow and Counterflow units .
Insert cut section of vent/flue pipe and coupling into al-
ternate 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.
24
Rev. 0
4
4
CUTPIPE 3.718" FROM
INSIDE OF BLOWER
DECK COUPLING
FLANGE
3.718"
BLOWER DECK
COUPLING
COUNTERFLOW
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 ad-
equately 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 rub-
ber 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
REMOVE
REMOVE
PIPE
4 SCREWS
*
*
*
M
1
6
O
P
3
*
F F
C
2
O N
*
*
*
REMOVE
AND RELOCATE
2
DETATCH RUBBER
ELBOW FROM
ID BLOWER AND
VENT/FLUE
PIPE
UPFLOW
*
*
COUNTERFLOW/UPRIGHT
(UPFLOW SIMILAR)
7
SECURE TO
ID BLOWER WITH
RUBBER COUPLING
AND HOSE
CLAMPS
1
3
2
M
P
C
O N
F
O F
UPFLOW/HORIZONTAL
(COUNTERFLOW SIMILAR)
Alternate Vent/Flue Location
1.
3
REMOVE
REMOVE
4 SCREWS
PIPE
REMOVE
4 SCREWS
6
REMOVE
AND RELOCATE
DETATCH RUBBER
*
*
ELBOW FROM
*
O N
2
C
*
O
3
P
F F
1
M
*
*
*
ID BLOWER AND
VENT/FLUE
PIPE
COUNTERFLOW
6
ADDITIONAL PLUG
FROM DRAIN KIT
8
EXTERNALLY
MOUNT
RUBBER ELBOW
7
SECURE TO
*
ID BLOWER WITH
*
2
O N
C
*
O
3
P
F
F
1
M
*
*
RUBBER COUPLING
AND HOSE
CLAMPS
7
SECURE TO
CABINET WITH
SCREWS
1
2
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