SYSTEM OPERATION
23
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 100÷ 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 the 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
predrilled 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.
UPFLOW MODEL INSTALLED HORIZONTALLY WITH
LEFT SIDE DOWN - ALTERNATE
* Also see Front Cover Pressure Switch Tube Location on
page 9.
Insert flange. Cut 2 ½” long.
R 000142
F
Figure 25
1. (Draining the RF000142 Coupling) Locate hose #2 (fac
-
tory 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
drain hole.
6. Insert 100 degree elbow in the cut end of hose #5.
7. Locate hose #6. Using red clamps, connect between
the coupling and 100 degree elbow, cutting off excess
tubing.
8. (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.
9. 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.
10. 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.
Hose #4 x 3
Hose #5
Figure 26
