Outdoor Fan; Electrical Controls And Wiring; Refrigerant Circuit - Carrier SEER 48ES Installation Instructions Manual

FRONT ACCESS
PANEL
Fig. 20 - - Unit Access Panel
Fig. 21 - - Removal of Motor and Blower Wheel
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.
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.
A08519
23.
6. Ensure that setscrew engages the flat area on the motor shaft
when tightening.
7. Replace grille.

Electrical Controls and Wiring

BLOWER
HOUSING
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, re- -strip the wire
end and reassemble the connection properly and securely.
After inspecting the electrical controls and wiring, replace all the
2 SETSCREWS
panels. Start the unit, and observe at least one complete cooling
(HIDDEN)
cycle to ensure proper operation. If discrepancies are observed in
operating cycle, or if a suspected malfunction has occurred, check
each electrical
instrumentation. Refer to the unit wiring label when making these
checks.

Refrigerant Circuit

Annually inspect all refrigerant tubing connections and the unit
C99085
base for oil accumulations. Detecting oil generally indicates a
refrigerant leak.
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 oil is detected or if low cooling performance is suspected,
leak- -test all refrigerant tubing using an electronic leak- -detector,
A07680
halide torch, or liquid- -soap solution. If a refrigerant leak is
detected, refer to the Check for Refrigerant Leaks section.
If no refrigerant leaks are found and low cooling performance is
suspected, refer to the Checking and Adjusting Refrigerant Charge
section.
29
CAUTION
!
component with the
WARNING
!
proper electrical