SYSTEM OPERATION
22
Installer selects right or left side drain
and installs this hose accordingly.
Hose #1
Hose #2
45 degree
barb-pipe
adapter
45 degree
barb-pipe
adapter
Figure 22
DRAIN EXITING LEFT SIDE
1. Install the 45 degree pipe / hose drain coupling from
the outside of the cabinet (barbed end goes in the cab
-
inet) through the hole in the left side of the cabinet and
secure with two field supplied #8 self-tapping screws
(see Figure 23).
2. Locate the long drain hose #3 and cut at “B” line for a
17.5" cabinet; cut at line “C” for a 21" cabinet; do not
cut for a “D” width cabinet.
3. Install large end of hose #3 to trap outlet and secure
with 1.25" clamp.
4. Install smaller end of hose #3 on 45÷ elbow and secure
with 1" clamp.
5. Refer to Field Supplied Drain section for instructions on
field supplied / installed drain on outlet of furnace trap.
UPFLOW MODEL INSTALLED HORIZONTALLY WITH
RIGHT SIDE DOWN
Minimum 5
½
" clearance is required for the drain trap beneath
the furnace.
Hose #11
Hose #2
Figure 23
1. Remove the clamps from both ends of the drain hoses.
2. Remove the two screws holding the drain trap to the
blower deck.
3. Remove the trap and two hoses from the blower deck
4. Remove the two plugs from the right side of the cabinet
and install them in the blower deck.
5. (Draining the Vent Elbow) Locate hose #2 (factory
installed) and cut 1" away from the 45 degree bend,
discard the 45 degree section. Insert hose #2 from out
-
side the cabinet through the cabinet drain hole nearest
the top. Secure it to the barbed fitting in the elbow with
a red clamp.
6. (Draining the Collector Box) Install the non-grommet
end of hose #11 from outside the cabinet in the bottom
drain hole. Install on collector box and secure with a
silver clamp.
7. Use two silver clamps and secure the hoses to drain trap.
The trap outlet faces the front of the furnace. Secure the
trap to the cabinet using two screws removed in step
2 by inserting the two screws through the large set of
holes in the top mounting tabs of the trap into the two
predrilled holes in the side of the cabinet.
8. Refer to Field Supplied Drain section for instructions on
field supplied / installed drain on outlet of furnace trap.
UPFLOW MODEL INSTALLED HORIZONTALLY WITH
LEFT SIDE DOWN
Minimum 5
½
" clearance is required for the drain trap beneath
the furnace.
*Also see Front Cover Pressure Switch Tube Location on
page 9.
Hose #6
Hose #5
Hose #11
Figure 24
1. Remove the clamps from the two drain tubes on the trap.
2. Remove the two screws holding the drain trap to the
blower deck.
3. Remove the trap and hoses from the blower deck .
4. Remove the two plugs from the left side of the cabinet
and install them in the blower deck.
