Carrier 58MSA Installation, Start-Up, And Operating Instructions Manual page 9

AUXILIARY "J" BOX
RELOCATED HERE
CONDENSATE
RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR
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.
3. Relief Port Tube
a. Use smaller diameter tube (factory-supplied in loose parts
bag) to extend collector box tube (green label) which was
previously connected to the condensate trap.
b. Route extended collector box pressure tube to relief port
connection on the condensate trap.
c. Determine appropriate length, cut, and connect tube.
d. Clamp tube to prevent any condensate leakage.
CONDENSATE TRAP FIELD DRAIN ATTACHMENT
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.
PLUG
TRAP
COLLECTOR
BOX EXTENSION
DRAIN TUBE
040, 060, AND 080 HEATING INPUT FURNACES
Fig. 9—Horizontal Left Tube Configuration
CAP
COLLECTOR BOX
DRAIN TUBE
(BLUE AND WHITE STRIPED)
COLLECTOR BOX
EXTENSION TUBE
DRAIN TUBE COUPLING
COLLECTOR BOX TUBE (PINK)
NOTE: See Fig. 9 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.
CONDENSATE TRAP FREEZE PROTECTION
Refer to Condensate Drain Protection section for recommenda-
tions and procedures.
CONSTRUCT A WORKING PLATFORM
Construct working platform where all required furnace clearances
are met. (See Fig. 3 and 10.)
The condensate trap MUST be installed below furnace. See
Fig. 4 for dimensions. The drain connection to condensate
trap must also be properly sloped to an open drain.
NOTE: Vent pipe length is restricted to a minimum of 5 ft. (See
Table 4.)
9
COLLECTOR BOX
TUBE (GREEN)
INDUCER HOUSING
DRAIN TUBE (VIOLET)
COLLECTOR BOX
DRAIN TUBE (BLUE)
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