NOTE:
See Fig. 8 or 9 or tube routing label on main furnace door to check for proper connections.
Relocate tubes as described below.
1. Disconnect collector box pressure tube (pink label) attached to pressure switch.
2. Extend collector box pressure tube (green label) which was previously connected to condensate trap relief port connection by splicing to
small diameter tube (factory-supplied in loose parts bag).
3. Connect collector box pressure tube (green label) to pressure switch connection labeled COLLECTOR BOX.
4. Extend collector box pressure tube (pink label) which was previously connected to pressure switch by splicing to remaining small diameter
tube (factory-supplied in loose parts bag).
5. Route this extended tube (pink label) to condensate trap relief port connection.
6. Determine appropriate length, cut, and connect tube.
7. Clamp tube to relief port connection.
E.
Condensate Trap Freeze Protection
Refer to Condensate Drain Protection section for recommendations and procedures.
PROCEDURE 4—HORIZONTAL LEFT (SUPPLY-AIR DISCHARGE) APPLICATIONS
A horizontal left furnace application is where furnace blower is located to the right of combustion and controls section of furnace, and conditioned
air is discharged to the left.
NOTE:
The auxiliary junction box (J-Box) MUST be relocated to opposite side of furnace casing. (See Fig. 10.) See Electrical Connection section
for J-Box relocation.
A.
Condensate Trap Location
The condensate trap must be removed from the factory-installed blower shelf location and relocated in selected application location as shown in
Fig. 2 or 10.
To relocate condensate trap from the blower shelf to desired location, perform the following:
1. Remove 3 tubes connected to condensate trap.
2. Remove trap from blower shelf by gently pushing tabs inward and rotating trap.
3. Install casing hole filler cap (factory-supplied in loose parts bag) into blower shelf hole where trap was removed.
WARNING: CARBON MONOXIDE POISONING HAZARD
Failure to follow this warning could result in personal injury or death.
Casing hole filler cap must be installed in blower shelf hole when condensate trap is relocated to prevent combustion products being
drawn in from appliances in the equipment room.
4. Install condensate trap into left-hand side casing hole by inserting tube connection stubs through casing hole and rotating until tabs snap
into locking position.
5. Fill unused condensate trap casing holes with plastic filler caps (factory-supplied in loose parts bag).
B.
Condensate Trap Tubing
NOTE:
See Fig. 10 or tube routing label on main furnace door to check for proper connections.
1. Collector Box Drain Tube
a. Install drain tube coupling (factory-supplied in loose parts bag) into collector box drain tube (blue label) which was previously connected
to condensate trap.
b. Connect large diameter drain tube and clamp (factory-supplied in loose parts bag) to drain tube coupling, extending collector box drain
tube.
c. Route extended tube (blue label) to condensate trap and cut to appropriate length.
d. Clamp tube to prevent any condensate leakage.
2. Inducer Housing Drain Tube
a. Remove and discard LOWER (molded) inducer housing drain tube which was previously connected to condensate trap.
b. Use inducer housing drain extension tube (violet label and factory-supplied in loose parts bag) to connect LOWER inducer housing drain
connection to the condensate trap.
c. Determine appropriate length, cut, and connect tube.
d. Clamp tube to prevent any condensate leakage.
3. Relief Port Tube
a. Extend collector box tube (green label) which was previously connected to the condensate trap by splicing to small diameter tube
(factory-supplied in loose parts bag).
b. Route extended collector box pressure tube to relief port connection on the condensate trap.
c. Determine appropriate length, cut, and connect tube.
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