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Section VIII - Power$ync II
™
Operation
64 Quincy Compressor
®
- QSD™
NOTICE!
COMPRESSOR HAS SHUT DOWN
NOTICE! HIGH STAGE 2 DISCH PRESSURE
TAKE CORRECTIVE ACTION
High stage 2 discharge pressure could be caused
by a clogged cooler or a failed discharge check
valve.
NOTICE!
COMPRESSOR HAS SHUT DOWN
NOTICE! MOTOR OVERLOAD
TAKE CORRECTIVE ACTION
Motor overload can be caused by high ambient
temperature, or operating the compressor above
the designed limits of the compressor. This can
happen if the discharge check valve is faulty.
CAUTION
COMPRESSOR HAS SHUT DOWN
NOTICE! POSSIBLE REVERSE ROTATION
TAKE CORRECTIVE ACTION
Possible reverse rotation is caused if stage 2 does
not reach a minimum pressure shortly after the
start button is pressed. This could also be caused
by a faulty blowdown valve or a faulty package
check valve.
CAUTION
STAGE 2 OF THE COMPRESSOR HAS EXCESSIVE
PRESSURE DIFFERENTIALS CALL SERVICE
STG 1 OUT_____ STG 2 OUT _____ ENTER TO EXIT
Stage 2 with excessive pressure differentials is
primarily caused by a failed blowdown valve.
The above displays indicate that the computer has
found operating conditions outside the normal
limits. For most of these displays, you only need
to press ENTER to reset the control. If the pressure
or temperature is still outside the limits, pressing
ENTER will not reset the control. The corrective
action for these messages is to find the cause of
the indicated problem. Your service representative
can provide the service needed to correct these
problems.
FLUID PRESSURE ______
COMPRESSOR HAS SHUT DOWN
**NOTICE** FIRMWARE FAILURE
REFER TO YOUR SERVICE MANUAL
Failure of either of the two types of memory chips
or a corruption of the software installed in those
chips will display this message. If the problem is
a failure of one of the chips, the main processor
circuit board must be replaced. Contact your
service representative to arrange this replacement.
The compressor can be operated in Back-up Mode.