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Bryant 355MAV EN User Manual

Page 9

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b. Route extended collector box pressure tube to relief port

connection on condensate trap.

c. Determine appropriate length, cut, and connect tube.

d. Clamp tube to prevent any condensate leakage.

C.

Condensate Trap Field Drain Attachment

Refer to Condensate Drain section for recommendations and
procedures.

D.

Pressure Switch Tubing

The LOWER collector box pressure tube (pink label) is factory
connected to the pressure switch and should not require any
modification.

NOTE:

See Fig. 9 or tube routing label on main furnace door to

check for proper connections.

E.

Condensate Trap Freeze Protection

Refer to Condensate Drain Protection section for recommenda-
tions and procedures.

F.

Construct a Working Platform

Construct working platform where all required furnace clearances
are met. (See Fig. 3 and 10.)

CAUTION:

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 6.)

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 29.)

V.

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.

A.

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 11.

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. 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.

Fig. 9—Horizontal Left Tube Configuration

A93353

CONDENSATE

TRAP

AUXILIARY

"

J

"

BOX

RELOCATED HERE

PLUG

CAP

INDUCER HOUSING
DRAIN TUBE (VIOLET)

COLLECTOR BOX
DRAIN TUBE (BLUE)

COLLECTOR BOX TUBE (PINK)

RELOCATE TUBE BETWEEN BLOWER SHELF AND INDUCER HOUSING FOR

040, 060, AND 080 HEATING INPUT FURNACES

COLLECTOR BOX

EXTENSION TUBE

COLLECTOR BOX
DRAIN TUBE
(BLUE AND WHITE STRIPED)

DRAIN TUBE COUPLING

COLLECTOR BOX
TUBE (GREEN)

COLLECTOR

BOX EXTENSION

DRAIN TUBE

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