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ELECTRICAL
4 - 6
Compressor Circuit Board
Compressor Control Circuit Switch
("ON/OFF") shuts off all power to the compressor
contactor and all components in that compressor's
control circuit, and resets the alarm circuit. After a
failure condition is corrected and reset, the switch
must be turned "OFF" until the alarm light turns
off then the switch may be turned "ON" again.
WARNING
ON/OFF switch does not remove power
from the circuit board.
The Control Panel Circuit Breaker
must be shut off.
Board Power – Green LED – indicates that
120VAC is applied to the board. It can only be
turned off at the panel circuit breaker.
HUSSM ANN CORPORATION • BRIDGETON, M O 63044-2483 • Printed in USA
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ON
OFF
Figure 4-3 Compressor Board Faceplate
Figure 4-3 — Compressor Board Faceplate
BOARD POWER
COMPRESSOR
ON
ALARM
SWITCH OFF TO
RESET
FAILURES
FUSE
HIGH PRESSURE
OIL FAILURE
Compressor On – Yellow LED – indicates that
there is 120VAC to the contactor coil.
Alarm – Red LED – indicates that this compres-
sor has had an alarm failure, and the alarm relay
is energized. This light will go off when the alarm
condition is corrected and the control switch is
reset.
Fuse Failure – Red LED – lights if the fuse has
blown. (Fuse is on board.)
High Pressure Failure – Red LED – lights under
high pressure failure condition.
Oil Failure – Red LED – lights under oil failure
condition.
September 1, 1997
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