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(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)
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.
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. 7 or 8 or tube routing label on main furnace door
to check for proper connections.
Relocate tubes as described below.
AUXILIARY "J" BOX
RELOCATED HERE
CONDENSATE
RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR
PLUG
TRAP
COLLECTOR BOX
EXTENSION TUBE
BOX EXTENSION
040, 060, AND 080 HEATING INPUT FURNACES
Fig. 9—Horizontal Left Tube Configuration
1. Disconnect collector box pressure tube (pink label) attached
to pressure switch.
2. Use small diameter tube (factory-supplied in loose parts
bag) to extend collector box pressure tube (green label)
which was previously connected to condensate trap relief
port connection.
3. Connect collector box pressure tube (green label) to pres-
sure switch connection labeled COLLECTOR BOX.
4. Use remaining small diameter tube (factory-supplied in
loose parts bag) to extend collector box pressure tube (pink
label) which was previously connected to pressure switch.
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 recommenda-
tions and procedures.
IV. 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.
CAUTION: Local codes may require a drain pan under
entire furnace and condensate trap when a condensing
furnace is used in an attic application or over a finished
ceiling.
CAP
COLLECTOR BOX
DRAIN TUBE
(BLUE AND WHITE STRIPED)
COLLECTOR
DRAIN TUBE
DRAIN TUBE COUPLING
COLLECTOR BOX TUBE (PINK)
—8—
COLLECTOR BOX
TUBE (GREEN)
INDUCER HOUSING
DRAIN TUBE (VIOLET)
COLLECTOR BOX
DRAIN TUBE (BLUE)
A93353
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