Installation guide

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Speedup
Pins
Step 4 -- Outdoor Fan
Keep the condenser fan free from all obstructions to ensure
proper cooling operation. Never place articles on top of the
unit. Damage to unit may result.
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 so that the hub is
1/8 in. (3 mm) away from the motor end (1/8 in. [3 mm] of
motor shaft will be visible). (See Fig. 22)
6. 6. Ensure that setscrew engages the flat area on the motor
shaft when tightening.
7. Replace grille.
Step 5 -- 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 panel 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, restrip 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
Quiet Defrost interval
Shift DI P switches
A08020
Fig. 27 - Defrost Control
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
checkouts.
Step 6 -- Refrigerant Circuit
Inspect all refrigerant tubing connections and the unit base for oil
accumulation annually. Detecting oil generally indicates a
refrigerant leak.
If oil is detected or if low performance is suspected, leak-test all
refrigerant tubing using an electronic leak detector, or liquid-soap
solution. If a refrigerant leak is detected, refer to Check for
Refrigerant Leaks section.
If no refrigerant leaks are found and low performance is suspected,
refer to Checking and Adjusting Refrigerant Charge section.
Step 7 -- Indoor Airflow
The heating and/or cooling airflow does not require checking
unless improper performance is suspected. If a problem exists, be
sure that all supply- and return-air grilles are open and free from
obstructions, and that the air filter is clean. When necessary, refer to
Indoor Airflow and Airflow Adjustments section to check the
system airflow.
Step 8 -- Metering Devices-TXV & Accurater
Piston
This unit uses 2 types of metering devices. The outdoor metering
device is a fixed orifice and is contained in the brass hex-body in
the liquid line feeding the outdoor coils. The indoor metering
device is a TXV type device.
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