Location; General - Carrier 58MXA Nstallation, Start-Up, And Operating Instructions

COLLECTOR BOX DRAIN TUBE
(BLUE AND WHITE STRIPED)
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: Combustion-air and vent pipes are restricted to a mini-
mum length of 5 ft. (See Table 7.)
NOTE: A 12-in. minimum offset pipe section is recommended
with short (5 to 8 ft) vent systems. This recommendation is to
reduce excessive condensate droplets from exiting the vent pipe.
(See Fig. 10 or 34.)

LOCATION

Step 1—General
When a furnace is installed so that supply ducts carry air to areas
outside the space containing the furnace, return air must also be
handled by ducts sealed to furnace casing. The ducts terminate
outside the space containing the furnace to ensure there will not be
a negative pressure condition within equipment room or space.
Furnace may be located in a confined space without special
provisions for dilution or ventilation air. This furnace must be
installed so electrical components are protected from water.
Locate furnace as close to center of air distribution system as
possible.
NOTE: For proper furnace operation, install furnace so that it is
level or pitched forward within 1/2 in. to ensure proper condensate
drainage from secondary heat exchangers. (See Fig. 12.)
NOTE: These furnaces are designed for a minimum continuous
return-air temperature of 60°F or intermittent operation down to
55°F such as when used with a night setback thermostat. Return-air
temperature must not exceed a maximum of 85°F. Failure to
follow these return-air temperature limits may affect reliability of
heat exchangers, motors, and controls. (See Fig. 13.)
Locate furnace so combustion-air pipe maximum lengths are not
exceeded. Refer to Table 7.
CAP
PLUG
INDUCER HOUSING
DRAIN TUBE (VIOLET)
COLLECTOR BOX
EXTENSION TUBE
Fig. 11—Horizontal Right Tube Configuration
COLLECTOR BOX DRAIN TUBE (BLUE)
COLLECTOR BOX TUBE (GREEN)
COLLECTOR BOX EXTENSION TUBE
COLLECTOR BOX TUBE (PINK)
AUXILARY "J" BOX RELOCATED HERE
LEVEL (0")
FRONT
TO
" MAX
1
⁄
2
UPFLOW OR DOWNFLOW
Fig. 12—Furnace Location for Proper Condensate
Fig. 13—Return-Air Temperature
12
CONDENSATE
TRAP
FRONT
LEVEL (0")
TO
" MAX
1
⁄
2
HORIZONTAL
Drainage
A00214
A93025
A93042