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Section VIII - Power$ync II
™
Operation
Quincy Compressor
®
- QSD™ 39
Detected problems that will prevent the Power$ync II
™
controller from allowing the compressor to operate
include:
NOTICE
STG 2 DISCH PRESSURE SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
PACKAGE PRESSURE SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
FLUID PRESSURE SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
STG 1 DISCH PRESSURE SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
PACKAGE DISCHARGE RTD SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
STG 1 DISCH RTD SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
STG 2 DISCH RTD SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
STG 1 INPUT RTD SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
NOTICE
STG 2 INPUT RTD SENSOR HAS FAILED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
These displays indicate that the computer did not
get a valid signal from a sensor or transducer.
There are two probable causes: a disconnected
wire or a failed sensor or transducer. Disconnect
the main power supply to the compressor and
check the connection at the temperature probe and
the controller. If a loose connection is found,
correct the problem and repeat the start-up
procedure. If all connections are tight, the problem
is a failed sensor or transducer. If a spare part is
available, replace and repeat the start-up process.
If no spare part is available, contact a service
representative. The compressor can be operated
in Back-up Mode.
NOTICE
A MOTOR OVERLOAD IS TRIPPED
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
This display indicates that either the main drive
motor overload or the fan motor overload was
found to be in the tripped position. The controller
will also read a loose connection to the overload
as a tripped overload. Disconnect the main power
supply to the compressor, check all wiring on the
overload for tightness and check the wiring at the
controller. Correct the condition responsible for
the tripped overload, reset the overload and repeat
the start-up procedure. If the problem persists,
contact your service representative.
NOTICE
RELAY BOARD COMMUNICATIONS FAILURE
REFER TO YOUR SERVICE MANUAL OR
CONTACT YOUR SERVICE REPRESENTATIVE
This message will appear if the main computer
cannot properly communicate with the relay board
located in the main electrical enclosure box (below
the Power$ync II
™
control panel). Disconnect the
main power supply to the compressor, check that
all cables to and from the relay board are tight
and then repeat the start-up procedure. If the
problem persists, contact your service
representative. The compressor can be operated
in Back-up Mode.