12
b. Remove and discard UPPER (molded) inducer housing
drain tube which was previously connected to
condensate trap.
c. Install cap and clamp on UPPER inducer housing drain
connection where molded drain tube was removed.
d. Use inducer housing drain tube (violet label and
factory-supplied in loose parts bag) to connect
LOWER inducer housing drain connection to the
condensate trap.
e. Connect inducer housing drain connection to
condensate trap.
(1.) Condensate Trap Located on Left Side of Casing
a. Determine appropriate length and cut.
b. Connect tube to condensate trap.
c. Clamp tube to prevent any condensate leakage.
(2.) Condensate Trap Located on Right Side of Casing
a. Route inducer housing drain tube (violet label)
directly from inducer housing to condensate
trap as shown in Fig. 9.
b. Determine appropriate length and cut.
c. Connect tube to condensate trap.
d. Clamp tube to prevent any condensate leakage.
3. Relief Port Tube Refer to Pressure Switch Tubing section
for connection procedure.
CONDENSATE TRAP FIELD DRAIN
ATTACHMENT
Refer to Condensate Drain section for recommendations
and procedures.
PRESSURE SWITCH TUBING
One collector box pressure tube (pink label) is factory connected
to the High Pressure Switch for use when furnace is installed in
upflow
applications. This tube MUST be disconnected and used
for the condensate trap relief port tube. The other collector box
pressure tube (green label) which was factory connected to the
condensate trap relief port connection MUST be connected to the
High Pressure Switch in DOWNFLOW or HORIZONTAL
RIGHT applications
NOTE
: See Fig. 8 or 9 or tube routing label on main furnace
door to check for proper connections.
1. Disconnect collector box pressure tube (pink label)
attached to High 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 High
Pressure Switch connection labeled COLLECTOR BOX.
4. Extend collector box pressure tube (pink label) which was
previously connected to High 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.
CONDENSATE TRAP FREEZE PROTECTION
Refer
to
Condensate
Drain
Protection
section
for
recommendations and procedures.
Step 4 -- Horizontal Left (Supply-Air Discharge)
Applications
In a horizontal left furnace application, the blower is located to
the right of the burner section, and conditioned air is discharged
to the left.
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.
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.
!
WARNING
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).
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.
353BA
V
