(2.) Condensate Trap Located on Right Side of Casing
(a.) Install drain tube coupling (factory-supplied in
loose parts bag) into collector box drain tube
(blue and white striped label) which was pre-
viously plugged.
(b.) Connect larger diameter drain tube (factory-
supplied in loose parts bag) to drain tube
coupling, extending collector box drain tube
for connection to condensate trap.
(c.) Route extended collector box drain tube di-
rectly from collector box drain to condensate
trap as shown in Fig. 10.
(d.) Determine appropriate length and cut.
(e.) Connect to condensate trap.
(f.) Clamp tube to prevent any condensate leakage.
2. Inducer Housing Drain Tube
a. Remove factory-installed cap and clamp from LOWER
inducer housing drain connection.
b. Remove and discard UPPER (molded) inducer housing
drain tube which was previously connected to conden-
sate 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 drain to conden-
sate trap as shown in Fig. 8.
(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.
C.
Condensate Trap Field Drain Attachment
Refer to Condensate Drain section for recommendations and
procedures.
D.
Pressure Switch Tubing
One collector box pressure tube (pink label) is factory connected to
the pressure switch for use when furnace is installed in UPFLOW
or HORIZONTAL LEFT applications. This tube MUST be dis-
connected 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 pressure switch in DOWNFLOW or HORIZON-
TAL RIGHT applications.
NOTE:
See Fig. 9 or 10 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.
Fig. 9—Downflow Tube Configuration
(Left-Hand Trap Installation)
A94215
PLUG
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR BOX
TUBE (PINK)
COLLECTOR BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX
EXTENSION TUBE
CONDENSATE
TRAP
INDUCER HOUSING
DRAIN TUBE (VIOLET)
CAP
COLLECTOR BOX
DRAIN TUBE (BLUE)
Fig. 10—Downflow Tube Configuration
(Right-Hand Trap Installation)
A94216
PLUG
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR BOX
TUBE (PINK)
COLLECTOR BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX
EXTENSION
DRAIN TUBE
CONDENSATE
TRAP
INDUCER HOUSING
DRAIN TUBE
(VIOLET)
COLLECTOR BOX
EXTENSION TUBE
DRAIN TUBE
COUPLING
COLLECTOR BOX
DRAIN TUBE (BLUE)
CAP
—9—
Summary of Contents for CONDENSING GAS FURNACE 355MAV
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