Table of Contents
Advertisement
Compressor
Access Panel
Fig. 21 - - Unit Access Panels
Fig. 22 - - Removal of Motor and Blower Wheel
Fig. 23 - - Burner Rack Removed
Outdoor Fan
Control
Access
Blower
Panel
Access
Panel
A09211
Electrical Controls and Wiring
Inspect and check the electrical controls and wiring annually. Be
BLOWER
HOUSING
sure to turn off the electrical power to the unit.
Remove access panels (see Fig. 21) 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
2 SETSCREWS
(HIDDEN)
operating cycle, or if a suspected malfunction has occurred, check
each
instrumentation. Refer to the unit wiring label when making these
checks.
Refrigerant Circuit
Annually inspect all refrigerant tubing connections and the unit
base for oil accumulations.
C99085
If low cooling performance is suspected, leak- -test all refrigerant
tubing using an electronic leak- -detector, halide torch, or
liquid- -soap solution. If a refrigerant leak is detected, refer to the
Check for Refrigerant Leaks section.
A07680
If no refrigerant leaks are found and low cooling performance is
suspected, refer to the Checking and Adjusting Refrigerant Charge
section.
62
CAUTION
!
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 Fig.
24.
6. Ensure that setscrew engages the flat area on the motor shaft
when tightening.
7. Replace grille.
electrical
component
WARNING
!
EXPLOSION, SAFETY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could result in personal
injury, death or property damage.
System under pressure. Relieve pressure and recover all
refrigerant before system repair or final unit disposal. Use
all service ports and open all flow- -control devices,
including solenoid valves.
with
the
proper
electrical
Advertisement
Table of Contents
