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To verify that the compressor is running:
WARNING: During normal operation, the
temperature of the single-speed compressor may
be hot. Use caution to avoid injury and wear Kevlar
®
gloves or equivalent protection.
Disconnect power from the unit. Wait 2 minutes for
pressure to equalize. Place a hand on the chassis,
near the compressor. Reconnect power and feel for
a vibration when the compressor tries to start.
Note: The compressor will not start right away. The
control will wait 2 minutes, then the single-speed
compressor will start.
The control will record a compressor fault if the
current is less than 1.5 amps when the compressor
relay on the board is energized.
Refer to the compressor replacement instructions
included with the replacement compressor.
Evacuate and recharge the system using currently
accepted procedures. (See Evacuation and Charging
Procedure.)
Bracket
Single-Speed Compressor
The compressor is a reciprocating type. Refer to
the mini-manual for the BTU/hour rating and the
compressor capacity test specication.
The compressor utilizes a start capacitor rated
at 145 to 177 ufd. The capacitor is installed in a
bracket that is attached to the top of the relay cover.
Start Capacitor
It is necessary to remove the control panel to access
the compressor external overload. (See Control
Panel.)
External
Overload
(Continued Next Page)
In the event the compressor is shorted to ground,
the compressor utilizes an external overload
that removes L1 voltage from the compressor,
providing additional protection. The overload opens
at 14 amps within 6.5 to 16 seconds and opens
when temperature exceeds 158°F. It will reset
automatically.
It is attached to the inside of the control panel rear
cover with a 1/4-in. hex-head screw.
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