Horizontal Right (Supply-Air Discharge) Applications - Bryant 355MAV Installation, Start-Up, And Operating Instructions Manual

MANUAL
SHUTOFF
GAS VALVE
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.)
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.
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.
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 13.
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. 12—Attic Location and Working Platform
VENT
30 MIN
WORK AREA
DRAIN
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).
B. 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.
—11—
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.
ACCESS OPENING
FOR TRAP
A93031