Bryant Induced- Combustion 333BAV User Manual

Page 3

e. If equipped with factory-specified disposable media

filter, replace only with media filter having the same part
number and size.

f. Slide filter into cabinet.

g. Replace filter cabinet door.

h. Turn on electrical supply to furnace.

2. Filter(s) installed in side(s) and/or bottom of blower com-

partment (See Fig. 4):
a. Turn off electrical supply before removing blower and

control access doors.

b. Release filter retainer from clip at front of furnace

casing. (See Fig. 4.) For side return, clips may be used
on either or both sides of the furnace.

c. Slide filter out.

d. Clean filters by spraying tap water through filter from

opposite direction of airflow.

e. Rinse and let dry. Oiling or coating of filter is NOT

recommended or required.

f. Place filter in furnace.

g. Fasten filter retainer in front slot.

h. Replace blower and control access doors and turn on

electrical supply to furnace.

II.

BLOWER MOTOR AND WHEEL

For long life, economy, and high efficiency, clean accumulated dirt
and grease from blower wheel and motor annually.

The following items should be performed by a qualified service
technician:

The motors have prelubricated sealed bearings and require no
lubrication.

Remember to disconnect the electrical supply before removing
access doors.

Clean as follows:

1. Remove blower access door.

2. Disconnect blower electrical leads from motor. Squeeze

latches to remove connectors from motor. Disconnect green
ground wire from screw. Note location of wires for reas-
sembly.

3. Remove control.

4. Remove screws holding blower assembly to blower deck

and slide blower assembly out of furnace.

5. Mark blower wheel, motor, and motor support in relation to

blower housing before disassembly to ensure proper reas-
sembly.

6. Loosen setscrew(s) holding blower wheel on motor shaft.

7. Remove bolts holding motor and motor mount to blower

housing and slide motor and mount out of housing. Motor
mount belly band need not be removed unless motor is to be
replaced.

CAUTION:

The blower wheel should not be dropped or

bent as balance will be affected.

8. Remove blower wheel from housing.

a. Mark cutoff plate location to ensure proper reassembly.

b. Remove screws holding cutoff plate and remove cutoff

plate from housing.

c. Lift blower wheel from housing through opening.

9. Clean blower wheel and motor using a vacuum with soft

brush attachment. Do not remove or disturb balance weights
(clips) on blower wheel blades.

10. Reinstall blower wheel by reversing items 8a through 8c.

Be sure wheel is positions for proper rotation.

11. Reassemble motor and blower by reversing items 6 and 7.

CAUTION:

Be sure the motor is properly positioned in

the blower housing. The motor arrow must point in the
direction of airflow through the furnace after the blower
assembly has been reinstalled in the furnace.

12. Reinstall blower assembly in furnace.

13. Reinstall control. Be sure motor ground wire is connected

as before.

Fig. 3—Motor Belly Band Location

DIMENSIONS (IN.)

FURNACE SIZE

036060

048080

1–1/2

060100

060120

A95268

Fig. 4—Upflow/Horizontal Component Identification

A00293

BLOCKED
VENT
SAFEGUARD

FLUE
COLLECTOR
BOX

MOUNTING

SCREWS

RELIEF

BOX

CONTROL

FILTER
RETAINER

WASHABLE
FILTER
FURNACE

FLUE
COLLAR

PRESSURE
SWITCH

GAS

VALVE

24V

HUM

WASHABLE
FILTER OR
DISPOSIBLE
MEDIA FILTER
IN FILTER
CABINET

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