Bryant Induced- Combustion 333BAV User Manual download pdf (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 D

036060 1

048080 1–1/2

060100 3

060120 3

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

GRYW

WASHABLE

FILTER OR

DISPOSIBLE

MEDIA FILTER

IN FILTER

CABINET

—3—

1 2 3 4 5 6 7 8 ... 11 12

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Bryant Induced- Combustion 333BAV User Manual Page 3

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