25
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PFLOW
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ODEL
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ORIZONTALLY
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IGHT
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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 and 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.
U
PFLOW
M
ODEL
I
NSTALLED
H
ORIZONTALLY
WITH
L
EFT
S
IDE
D
OWN
Minimum 5 1/2" clearance is required for the drain trap beneath
the furnace.
*Also see Front Cover Pressure Switch Tube Location on page 15.
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.
Place cap on vent – drain elbow barb fitting and secure with red clamp
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) 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.
12. 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.
13. Place cap on vent – drain elbow barb fitting and secure with red clamp.
Hose #6
Hose #5
Hose #11
Figure 24
Hose #11
Hose #2
Figure 23