23
Hose #8
Hose #7
Hose #7
Hose #7
Figure 32
Counterflow Model Installed Horizontal-
ly with Left Side Down (See Figure 33)
*Also see Front Cover Pressure Switch Tube Location on
page 11.
Minimum 5 1/2” clearance is required for the drain trap be-
neath the furnace.
NOTE:
For horizontal installations, some of the required
hoses are found in the factory-installed hose assemblies.
Remove the hose clamps to obtain the respective hoses
needed for installation, and install per the following directions.
1. Remove the factory installed drain trap and hose
assemblies. Leave the 100° elbow inserted and
clamped in the vent-drain elbow.
2. Remove two 1”plugs from left side of cabinet
3. (Draining the Collector Box) Remove the cap from
the left side of the collector box drain port (bottom in
horizontal left position) and install it on right side drain
port.
4. Place radius end of hose #4 (factory installed) on the
collector box drain port and secure with a silver clamp.
5. Insert hose #2 from outside the cabinet in the front
drain hole.
6. Connect hose #4 & hose #2 together using a straight
barbed coupling and two gold clamps (factory
installed).
7. (Draining the Vent Elbow) Remove rubber plug from
vent – drain elbow side port.
8.
The unused vent-drain elbow drip leg port must be
plugged to prevent flue gases from escaping.
Insert
rubber plug removed in step 7 into the 100°elbow.
(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)
9. Place radius end of hose #4 on the side port of vent
– drain elbow and secure with a gold clamp.
10. Insert a ½” diameter PVC pipe (factory installed) into
hose #4 and secure with a gold clamp.
11.Insert the non-grommet end of hose #5 (factory
installed) from outside the cabinet in the back drain
hole.
12. Insert 100º elbow in hose #5 and secure with a red
clamp.
13. Locate hose #4 and cut a cut off a 4” straight section
and discard the radius end.
14. Connect the 4” straight section of hose #4 to the 100º
elbow and the PVC pipe and secure with red clamps.
15. Connect the hoses to the trap inlets and secure with
silver clamps, drain trap outlet must point to the original
bottom of the furnace.
16.Using the two sheet metal screws provided in the
cabinet, secure the trap to the furnace.
17. Refer to Field Supplied Drain section for instructions on
field supplied / installed drain on outlet of furnace trap.
Hose #4
Hose #5
Hose #4
Hose #2
Figure 33
Electrical Connections
Wiring Harness
The wiring harness is an integral part of this furnace. Wires
are color coded for identification purposes. Refer to the
wiring diagram for wire routings. If any of the original wire
as supplied with the furnace must be replaced, it must be
replaced with wiring material having a temperature rating of
at least 105° C. Any replacement wiring must be a copper
conductor.
HIGH VOLTAGE !
T
O
AVOID
THE
RISK
OF
ELECTRICAL
SHOCK
,
WIRING
TO
THE
UNIT
MUST
BE
POLARIZED
AND
GROUNDED
.
WARNING
