Required Compressor Modification for 38AH044-
084 Optional Single-Circuit Units, When Com-
pressor A1 is Out —
To maintain unit operation, com-
pressor no.1 must be operable. If it is not operable, the following
temporary modifications must be made to keep the unit
running:
1. Change the oil pressure switch connections from com-
pressor A1 to compressor A2.
2. Connect compressor A2 into the Time Guardt circuit as
compressor A1 was originally.
3. Open compressor A1 circuit breaker.
NOTE: Make sure the crankcase heaters are energized when
compressors are off.
FAN CONTACTORS
COMPRESSOR
CIRCUIT
BREAKERS
FAN CIRCUIT
BREAKER
TERMINAL
BLOCKS
TIMERS
TIME-DELAY
RELAY
OIL PRESSURE
SWITCHES
FUSE
HOLDERS
COMPRESSOR
CONTACTORS
TERMINAL
BLOCKS
TRANSFORMERS
Fig. 48 — Unit Control Box
NOTE: Fan rotation is clockwise when viewed from top of unit.
Fig. 49 — Condenser Fan Adjustment
51
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