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52
Compressor
Access
Panel
Blower
Access
Panel
Control
Access
Panel
A09215
Fig. 20 -- Unit Access Panels
BLOWER
HOUSING
2 SETSCREWS
(HIDDEN)
C99085
Fig. 21 -- Removal of Motor and Blower Wheel
A07680
Fig. 22 -- 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 as shown in Fig.
23.
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 Fig. 20) 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.
PY4G
Summary of Contents for PY4G B Series
Page 4: ...4 A190121 Fig 3 24 36 Unit Dimensions PY4G ...
Page 5: ...5 A190122 Fig 4 42 60 Unit Dimensions PY4G ...
Page 16: ...16 A150502 Fig 14 208 230 1 60 Connection Wiring Diagram PY4G ...
Page 17: ...17 A150510 Fig 14 Cont 208 230 1 60 Ladder Wiring Diagram PY4G ...
Page 18: ...18 A150508 Fig 15 208 230 3 60 Connection Wiring Diagram PY4G ...
Page 19: ...19 A150511 Fig 15 Cont 208 230 3 60 Ladder Wiring Diagram PY4G ...
Page 20: ...20 A150509 Fig 16 460 3 60 Connection Wiring Diagram PY4G ...
Page 21: ...21 A150512 Fig 16 Cont 460 3 60 Ladder Wiring Diagram PY4G ...