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PY5G--B: Installation Instructions
COMPRESSOR
ACCESS PANEL
Fig. 25 – Unit Access Panels
Fig. 26 – Removal of Motor and Blower Wheel
Fig. 27 – Burner Rack Removed
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
CONTROL
ACCESS
PANEL
BLOWER
ACCESS
PANEL
A170032
BLOWER
HOUSING
2 SETSCREWS
(HIDDEN)
C99085
A07680
40
Outdoor Fan
WARNING
!
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. Verify continuity of earth
grounding. Check that wiring will not be subject to wear, corrosion,
excessive pressure, vibration, sharp edges or any other adverse
environmental effects. The check shall also take into account the effects
of aging or continual vibration from sources such as compressors or
fans.
Remove access panels (see
Fig.
and wiring. Before working with or handling any electrical components,
make sure that all capacitors are properly discharged to avoid possibility
of sparking. Replace components only with parts specified by the
manufacturer. Other parts may result in the ignition of refrigerant in the
atmosphere from a leak. 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.
Refrigerant Circuit
Annually inspect all refrigerant tubing connections.
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.
If low cooling performance is suspected, leak-test all refrigerant tubing
using an electronic leak-detector, calibrated for use with R-454B, or
liquid-soap solution. Ensure that the detector is not a potential ignition
source. A halide torch (or any other detector using a naked flame) must
not be used. If a refrigerant leak is detected, refer to the Check for
Refrigerant Leaks section.
Fig.
28.
25) to locate all the electrical controls
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