Carrier 58MVP Installation, Start-Up, And Operating Instructions Manual page 10

MANUAL
SHUTOFF
GAS VALVE
1. Remove 3 tubes connected to condensate trap.
2. Remove trap from blower shelf by gently pushing tabs inward
and rotating trap.
3. Remove casing hole filler cap from casing hole. (See Fig. 2 or
11.)
4. Install casing hole filler cap into blower shelf hole where trap
was removed.
5. Install condensate trap into casing hole by inserting tube
connection stubs through casing hole and rotating until tabs
snap into locking position.
CONDENSATE TRAP TUBING
NOTE: See Fig. 11 or tube routing label on main furnace door to
check for proper connections.
1. Collector Box Drain Tube
a. Remove factory-installed plug from LOWER collector box
drain tube (blue and white striped label).
b. Install removed clamp and plug into UPPER collector box
drain tube (blue label) which was previously connected to
condensate trap.
c. Connect LOWER collector box drain tube (blue and white
striped label) to condensate trap. Tube does not need to be
cut.
d. 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.
COMBUSTION – AIR
INTAKE
"
3
5 ⁄
4
SEDIMENT
TRAP
CONDENSATE
TRAP
NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE
FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.
Fig. 10—Attic Location and Working Platform
VENT
"
30 MIN
WORK AREA
ACCESS OPENING
FOR TRAP
DRAIN
b. Remove and discard UPPER (molded) inducer housing
drain tube which was previously connected to condensate
trap.
c. Install cap and clamp on UPPER inducer housing drain
connection where molded drain tube was removed.
d. Use inducer housing drain extension tube (violet label and
factory-supplied in loose parts bag) to connect LOWER
inducer housing drain connection to condensate trap.
e. Determine appropriate length, cut, and connect tube to
condensate trap.
f. Clamp tube to prevent any condensate leakage.
3. Relief Port Tube
Refer to Pressure Switch Tubing section for connection
procedure.
CONDENSATE TRAP FIELD DRAIN ATTACHMENT
Refer to Condensate Drain section for recommendations and
procedures.
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. 11 or tube routing label on main furnace door to
check for proper connections.
10
A 12-IN. MIN HORIZONTAL PIPE
SECTION IS RECOMMENDED WITH
SHORT (5 TO 8 FT) VENT SYSTEMS
TO REDUCE EXCESSIVE
CONDENSATE DROPLETS FROM
EXITING THE VENT PIPE.
A93031