Installation Instructions

21
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 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 instructioins
on field supplied / installed drain on outlet of furnace
trap.
Hose #6
Hose #5
Hose #11
Figure 24
UPFLOW MODEL INSTALLED HORIZONTALLY WITH LEFT SIDE
DOWN-ALTERNATE
*Also see Front Cover Pressure Swith Tube Location on
page 9
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
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.
Insert flange. Cut 2 ½” long.
R 000142F
Figure 25
COUNTERFLOW MODEL INSTALLED VERTICALLY
The furnace drain may exit the right or left side of the fur-
nace cabinet (left side preferred) Trap and factory installed
hoses remain as shipped if the drain will exit the left side of
the cabinet. Draining from the right side requires relocation
of the trap to outside the cabinet.