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PGD4 Series K WPG4 Series K: Installation Instructions
Fan Partition
Flue
Mounting
Collector
Inducer
Bracket
Box
Blower
Housing
Fig. 23 – Blower Housing and Flue Collector Box
COMPRESSOR
ACCESS PANEL
Fig. 24 –
A170032
Fig. 25 – Removal of Motor and Blower Wheel
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
Integrated
Gas Unit
Controller
(IGC)
Auto Transformer
fuses used on 460
volt units only.
(Hidden)
Interface Fan
Board (IFB)
Induced Draft
Motor
Rollout
Switch
Burner
Mounting
Rack
Screw
CONTROL
ACCESS
PANEL
BLOWER
ACCESS
PANEL
Unit Access Panels
BLOWER
HOUSING
2 SETSCREWS
(HIDDEN)
A170031
Fig. 26 – 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.
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 as shown in
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 panels (see
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.
C99085
47
WARNING
!
Fig.
24) to locate all the electrical controls
A07680
Fig.
27.
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