COMPRESSOR START KITS
24
…………. Condensate line piped with trap and vent
…………. Auxiliary drain pan installed in horizontal applications
…………. Auxiliary condensate line installed in horizontal application
CAPACITOR ELECTRICAL CHECK
two windings out of phase from one another and allows the compressor motor to start. Use a capacitor
capacitor plates
1. Set the ohmmeter to the highest scale available
2. Discharge the capacitor by shorting the terminals with the blade of a screwdriver having an insulated
handle.
3.
capacitor is GOOD
4. Replace any failed capacitor with a capacitor having the same MFD and voltage rating.
…………. No evidence of refrigerant leaks
…………..Horizontal drain pan installed in horizontal applications
WARNING: ANY CAPACITOR SHOWING SIGNS OF LEAKAGE OR BULDGING MUST BE
REPLACED IMMEDIATEDLY. DO NOT OPERATE THE AIR CONDITIONING SYSTEM WITH A
CAPACITOR SHOWING THESE SIGNS.
tester to determine if the capacitor dielectric has broken down, or if the MFD value has changed. If a
Single phase compressors require a run capacitor connected to the run and start windings. This puts the
capacitor analyzer is not available, use a quality ohmmeter to check the resistance between the
Place the Ohmmeter probes on the capacitor terminals and observe:
B. If the meter pointer does not move, the Open capacitor is open and should be REPLACED.
A. If the meter pointer moves towards zero, then gradually moves to higher ohm values, the
C. If the meter pointer goes toward ZERO ohms and stays at or near zero, the capacitor is shorted
and should be replaced.
Run capacitor
WARNING:DISCONNECT ALL POWER TO THE OUTDOOR UNIT BEFORE BEGINNING THIS
TEST
.
ELECTRICAL
The motors in both the outdoor unit and indoor unit are similar .Outdoor motors have one speed while
The fan motor has both “Run” and “Start “windings .Extended run windings furnish a choice of speeds
with indoor products. Use an Ohmmeter to troubleshooting motors.
Some compressors require the assistance of a hard start kit to start, it is urgest to consult the
indoor motors usually are multi-speed. All fan motors require a capacitor for the best torque and efficiency .
the motor is replaced, replace the capacitor at the same time.
information.
compressor manufactores recommendations for start kits. follow the manufactores installation
MOTORS:
Fig.. 9 -2
Central Air Conditioner
Model: Cooling Only,
13
SEER
units
