Bryant Deluxe 4-Way Multipoise Variable-Capacity Direct-Vent Condensing Gas 355MAV User Manual

Page 11

CAUTION:

The condensate trap MUST be installed

below furnace. See Fig. 6 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. 12 or 35.)

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.

CAUTION:

Local codes may require a drain pan under

entire furnace and condensate trap when a condensing
furnace is used in attic application or over a finished
ceiling.

NOTE:

In Canada, installations shall be in accordance with

current NSCNGPIC Installation Codes and/or local codes.

NOTE:

The auxiliary junction box (J-box) MUST be relocated to

opposite side of furnace casing. (See Fig. 13.) See Electrical
Connection section for J-box relocation.

Condensate Trap Location

The condensate trap must be removed from the factory-installed
blower shelf location and relocated in selected application location
as shown in Fig. 2 or 13.

To relocate condensate trap from the blower shelf to desired
location, perform the following:

1. Remove 3 tubes connected to condensate trap.

2. Remove trap from blower shelf by gently pushing tabs

inward and rotating trap.

3. Install casing hole filler cap (factory-supplied in loose parts

bag) into blower shelf hole where trap was removed.

WARNING:

Casing hole filler cap must be installed in

blower shelf hole when condensate trap is relocated.
Failure to follow this warning could result in electrical
shock, fire, personal injury or death.

4. Install condensate trap into right-hand side casing hole by

inserting tube connection stubs through casing hole and
rotating until tabs snap into locking position.

5. Fill unused condenstate trap casing holes with plastic filler

caps (factory-supplied in loose parts bag).

Condensate Trap Tubing

NOTE:

See Fig. 13 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 con-
nected 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.

Fig. 12—Attic Location and Working Platform

A93031

COMBUSTION – AIR

INTAKE

VENT

MANUAL

SHUTOFF

GAS VALVE

SEDIMENT
TRAP

CONDENSATE
TRAP

DRAIN

ACCESS OPENING
FOR TRAP

″

MIN

WORK AREA

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.

⁄

″

NOTE: LOCAL CODES MAY REQUIRE A DRAIN PAN UNDER THE

FURNACE AND CONDENSATE TRAP WHEN A CONDENSING
FURNACE IS INSTALLED ABOVE FINISHED CEILINGS.

—11—

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