Residential Air Conditioners and Heat Pumps Using R-22 and Puron® Refrigerant: Application Guideline and Service Manual
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
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Access Compressor Or Other Internal Cabinet Components
NOTE:
It is not necessary to remove the top cover to gain access.
Removing the top cover may cause grill panels, corner posts, louvers or
coils to be damaged. It is recommended to protect the top cover from
damage of tools, belt buckles, etc. while servicing from the top.
1. Should the unit height allow components to be accessed from the
top of the unit, follow procedures for removing fan motor assembly.
Access components through the top cap.
2. Large components may not be removed easily without having
access from the top and side. Side access may allow procedures
such as brazing, cutting, and removal easier. Follow procedures
below:
a. Follow procedures to remove the fan motor assembly.
b. Air conditioning units only, remove the screws from the top of
the electrical control panel. (Heat pumps will not have screws
holding the electrical control panel in place at the top once the
control box cover has been removed.)
c. Remove the base pan screws holding the control panel and lift off
the unit.
Certain maintenance routines and repairs require removal of cabinet
panels.
Remove Top Cover - Mid-Tier / Deluxe
1. Turn off all power to outdoor and indoor units.
2. Remove access panel.
3. Remove information plate.
4. Disconnect fan motor wires and cut wire ties. Remove wires from
control box. Refer to unit wiring label.
5. Remove screws holding top cover to louver panels.
6. Lift top cover from unit.
7. Reverse sequence for reassembly.
Remove Fan Motor Assembly - Mid-Tier / Deluxe
1. Perform items 1 through 6 from above.
2. Remove nuts securing fan motor to top cover.
3. Remove motor and fan blade assembly.
4. Reverse sequence for reassembly.
5. Prior to applying power, check that fan rotates freely.
Control Box Cover—Base Products
This panel contains much of the same information as the information
plate mentioned previously, but is designed only to cover the control
box.
Remove Top Cover—Base Products
1. Turn off all power to outdoor an indoor units.
2. Remove 5 screws holding top cover to coil grille and coil tube
sheet.
3. Remove 2 screws holding control box cover.
4. Remove 2 screws holding information plate.
5. Disconnect fan motor wires, cut any wire ties, and move wires out
of control box and through tube clamp on back of control box.
6. Lift top cover from unit.
7. Reverse sequence for reassembly.
Remove Fan Motor Assembly—Base Products
1. Perform steps 1, 3, 4, and 5 above. (Note: item 2 is not required.)
2. Remove 4 screws holding wire basket to top cover.
3. Lift wire basket from unit.
4. Remove nuts holding fan motor to wire basket.
5. Remove motor and fan blade assembly.
6. Pull wires through wire raceway to change motor.
7. Reverse sequence for reassembly.
8. Prior to applying power, check that fan rotates freely.
