20
D
RAIN
E
XITING
R
IGHT
S
IDE
1. Locate and Install the 45º pipe / hose drain coupling
from the outside of the cabinet (barbed end goes in
the cabinet) through hole in the right side of the
cabinet and secure with two field supplied #8 self-
tapping screws (see Figure 22).
2. Locate the long drain hose #3 and cut at line “A” .
3. Install large end of hose #3 to trap outlet and secure
with 1.25" clamp.
4. Install smaller end of hose #3 on 45º 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.
D
RAIN
E
XITING
L
EFT
S
IDE
1. Install the 45 degree pipe / hose drain coupling from
the outside of the cabinet (barbed end goes in the
cabinet) through the hole in the left side of the
cabinet and secure with two field supplied #8 self-
tapping screws (see Figure 22).
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 45º 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.
U
PFLOW
M
ODEL
I
NSTALLED
H
ORIZONTALLY
WITH
R
IGHT
S
IDE
D
OWN
Minimum 5 1/2" clearance is required for the drain trap beneath the furnace.
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.
5a. (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 outside the cabinet
through the cabinet drain hole nearest the top, secure it to
the barbed fitting in the elbow with a red clamp.
5b. (Option for draining the vent elbow) The RF000142 drain
coupling may be used in conjunction with the steps in 5a if
water is not draining effectively from the internal vent pipe.
The RF000142 may be installed externally to the furnace
cabinet on a short PVC stub in the vent outlet fitting. The
unused drain port on the RF000142 must be capped. A field
installed drain tube attached to the RF000142 must be
trapped to prevent flue gas from escaping.
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.
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
Hose #11
Hose #2
Figure 23