19
the 45º section. Insert hose #2 from outside 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.
Hose #6
Hose #5
Hose #11
Front Cover
Pressure Switch
Tube Location
Figure 26
Upflow Model Installed Horizontally
with Left Side Down
Minimum 5
½
” clearance is required for the drain trap beneath
the furnace.
*See Front Cover Pressure Switch Tube Location on Figure
26.
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.
5. Draining the Vent Elbow: Locate hose #6. Measuring
from the non-grommet end; cut off and discard 1 ½
”
for a “D” width cabinet, 5” for a “C” width cabinet, 8 ½
”
for a “B” width cabinet.
6. Remove the rubber plug from vent – drain elbow side
port. Place hose #6 on the vent – drain elbow side port
and secure with a silver clamp .
7.
Unused vent-drain elbow drip leg port must be
sealed to prevent flue gases from escaping. Insert
the rubber plug removed in step 6 into the unused
elbow drain port. Inserting a blunt tool such as a
3/16’’ Allen wrench into the center of the rubber plug
will stretch the plug and allow complete insertion.
8. Locate hose #5 and cut 3
”
from the non-grommet end.
Discard the section without the grommet.
9. Insert the cut end of tube #5 through the lower cabinet
drain hole.
10. Connect hose #6 & hose #5 using 100º elbow and secure
with two red clamps
11. Draining the Collector Box: Remove cap from left side
collector box drain port (bottom in horizontal left position)
and install it on right side (top) collector box drain port.
12. Install the non-grommet end of hose #11 from outside
the cabinet in the upper drain hole. Install on collector
box and secure with a silver clamp.
13. 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 pre-drilled
holes in the side of the cabinet.
14. Refer to Field Supplied Drain section for instructions on
field supplied/installed drain on outlet of furnace trap.
Insert flange. Cut 2 ½” long
.
RF000142
2 ½”
Figure 27
Upflow Model Installed Horizontally
With Left Side Down - Alternate
*See Front Cover Pressure Switch Tube Location on
Figure 26.
1. Draining the RF000142 Coupling: Locate hose #2
(factory installed). Cut off and discard the 45° radius
end.
2. Install 90°radius end of hose #2 on RF000142 drain
outlet and secure with a red clamp.
3. Insert coupling in hose #2 and secure with a red clamp.
4. Locate hose #5 and cut 3” from the non-grommet end.
Discard the section without the grommet.
5. Insert the cut end of tube #5 through the lower cabinet
