Bryant 574D - Manual (Page 25)

25
INDUCED DRAFT MOTOR MOUNT
FLUE
COLLECTOR
BOX
BLOWER
HOUSING
BURNER
RACK
MOUNTING
SCREW
ROLLOUT
SWITCH
IGNITION MODULE
A05119
Fig. 18 -- Blower Housing and Flue Collector Box
Front
Access Panel
A07151
Fig. 19 -- Unit Access Panel
BLOWER
HOUSING
2 SETSCREWS
(HIDDEN)
C99085
Fig. 20 -- Removal of Motor and Blower Wheel
C99086
Fig. 21 -- Burner Rack Removed
OUTDOOR FAN
UNIT OPERATION HAZARD
Failure to follow this caution may result in damage to unit
components.
Keep the condenser fan free from all obstructions to ensure
proper cooling operation. Never place articles on top of the
unit.
CAUTION
!
1. Remove 6 screws holding outdoor grille and motor to top
cover.
2. Turn motor/grille assembly upside down on top cover to
expose fan blade.
3. Inspect the fan blades for cracks or bends.
4. If fan needs to be removed, loosen setscrew and slide fan off
motor shaft.
5. When replacing fan blade, position blade so that the hub is
1/8 in. away from the motor end (1/8 in. (3.175mm) of
motor shaft will be visible) (See Fig. 12).
6. Ensure that setscrew engages the flat area on the motor shaft
when tightening.
7. Replace grille.
ELECTRICAL CONTROLS AND WIRING
Inspect and check the electrical controls and wiring annually. Be
sure to turn off the electrical power to the unit.
Remove access panel to locate all the electrical controls and wiring.
Check all electrical connections for tightness. Tighten all screw
connections. If any smoky or burned connections are noticed,
disassemble the connection, clean all the parts, re--strip the wire
end and reassemble the connection properly and securely.
After inspecting the electrical controls and wiring, replace all the
panels. Start the unit, and observe at least one complete cooling
cycle to ensure proper operation. If discrepancies are observed in
operating cycle, or if a suspected malfunction has occurred, check
each electrical component with the proper electrical
instrumentation. Refer to the unit wiring label when making these
checks.
574D