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AUXILIARY "J" BOX
CONDENSATE
TRAP
RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR
c. Determine appropriate length, cut, and connect tube.
d. Clamp tube to prevent any condensate leakage.
CONDENSATE TRAP FIELD DRAIN
ATTACHMENTS
Refer to Condensate Drain section for recommendations
and procedures.
PRESSURE SWITCH TUBING
The LOWER 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,
extended, rerouted, and then reconnected to the pressure switch in
HORIZONTAL LEFT applications.
NOTE: See Fig. 10 or tube routing label on main furnace door to
check for proper connections.
Modify tube as described below.
1. Disconnect collector box pressure tube (pink label)
attached to pressure switch.
2. Use smaller diameter tube (factory-supplied in loose parts
bag) to extend tube disconnected in item 1.
3. Route extended tube:
a. Behind inducer housing.
b. Between blower shelf and inducer housing.
c. Behind inducer motor bracket.
d. Between inducer motor and pressure switch.
4. Determine appropriate length, cut, and reconnect tube to
pressure switch connection labeled COLLECTOR BOX.
PLUG
CAP
COLLECTOR
BOX EXTENSION
DRAIN TUBE
COLLECTOR BOX
EXTENSION TUBE
DRAIN TUBE COUPLING
COLLECTOR BOX TUBE (PINK)
040, 060, AND 080 HEATING INPUT FURNACES
Fig. 10 - - Horizontal Left Tube Configuration
- - 13 - -
COLLECTOR BOX
DRAIN TUBE
(BLUE AND WHITE STRIPED)
COLLECTOR BOX
TUBE (GREEN)
INDUCER HOUSING
DRAIN TUBE (VIOLET)
COLLECTOR BOX
DRAIN TUBE (BLUE)
CONDENSATE TRAP FREEZE PROTECTION
Refer
to
Condensate
Drain
recommendations and procedures.
CONSTRUCT A WORKING PLATFORM
Construct working platform where all required furnace clearances
are met. (See Fig. 3 and 11 or 12.)
CAUTION
!
UNIT MAY NOT OPERATE
Failure to follow this caution may result in intermittent
unit operation.
The condensate trap MUST be installed below furnace. See
Fig. 5 for dimensions. The drain connection to condensate trap
must also be properly sloped to an open drain.
NOTE:
Combustion-air and vent pipes are restricted to a
minimum length of 5 ft.(1.5 M) (See Table 11.)
NOTE:
A 12-in. (305 mm) minimum offset pipe section is
recommended with short (5 to 8 ft. (1.5 to 2.4 M)) vent systems.
This recommendation is to reduce excessive condensate droplets
from exiting the vent pipe. (See Fig. 11, 12 or 41.)
Step 5—Horizontal Right (Supply-Air Discharge)
Applications
A horizontal right furnace application is where furnace blower is
located to the left of combustion and controls section of furnace,
and conditioned air is discharged to the right.
A00215
Protection
section
for
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