Bryant 345MAV Installation, Start-Up, And Operating Instructions Manual page 8

COLLECTOR BOX
DRAIN TUBE (BLUE)
CAP
PLUG
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR BOX
EXTENSION TUBE
COLLECTOR BOX
TUBE (PINK)
COLLECTOR BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX
EXTENSION TUBE
CONDENSATE
TRAP
INDUCER HOUSING
DRAIN TUBE (VIOLET)
Fig. 8—Downflow Tube Configuration
(Left-Hand Trap Installation)
(b.) Clamp tube to prevent any condensate leakage.
(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 be-
tween gas valve and inlet housing as shown in
Fig. 9.
(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.
DRAIN TUBE
COUPLING
A94165
Fig. 9—Downflow Tube Configuration
(Right-Hand Trap Installation)
(1.) Condensate Trap Located on Left Side of Casing
(2.) Condensate Trap Located on Right Side of Casing
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
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 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.
Relocate tubes as described below.
1. Disconnect collector box pressure tube (pink label) attached
to pressure switch.
—8—
PLUG
CAP
COLLECTOR BOX
DRAIN TUBE (BLUE)
COLLECTOR BOX
TUBE (PINK)
COLLECTOR BOX
TUBE (GREEN)
COLLECTOR BOX
EXTENSION TUBE
COLLECTOR BOX
DRAIN TUBE (BLUE
& WHITE STRIPED)
COLLECTOR BOX
EXTENSION TUBE
INDUCER HOUSING
DRAIN TUBE
(VIOLET)
COLLECTOR BOX
EXTENSION
DRAIN TUBE
(a.) Determine appropriate length and cut.
(b.) Connect tube to condensate trap.
(c.) Clamp tube to prevent any condensate leakage.
(a.) Route inducer housing drain tube (violet label)
between gas valve and inlet housing behind
collector box drain tube.
(b.) Determine appropriate length and cut.
(c.) Connect tube to condensate trap.
(d.) Clamp tube to prevent any condensate leakage.
CONDENSATE
TRAP
A94166