Quincy Compressor QSD 65040-AB Instruction Manual page 73

Probable Causes:
Failure to Start (continued):
R
ELAY BOARD COMMUNICATION FAILURE
S
AFETY CIRCUIT SHUTDOWN
E
MERGENCY STOP BUTTON PRESSED
F
AULTY START BUTTON
L
OOSE WIRE CONNECTIONS
H
IGH DISCHARGE PRESSURE
C
ONTACTOR NOT ENGAGING
Unscheduled Shutdown:
H
IGH AIR DISCHARGE TEMPERATURE
S
AFETY CIRCUIT SHUTDOWN
F HAT
AULTY SENSORS
E
XCESSIVE DISCHARGE PRESSURE
L
OW FLUID PRESSURE
Corrective Action:
C
HECK CABLE AND CONNECTION ENDS OF COMMUNICATION
CABLE BETWEEN RELAY BOARD AND MICROPROCESSOR
U
NPLUG AND THEN PLUG THE CONNECTOR BACK IN AT THE
RELAY BOARD AND AT THE MICROPROCESSOR BOARD
C
ONTACT AN AUTHORIZED
D
IAGNOSE CAUSE IN ACCORDANCE WITH THE INSTRUCTIONS ON
LED . C
THE DISPLAY
.
COMPRESSOR
R
ESET EMERGENCY STOP BUTTON AND START COMPRESSOR
C
HECK FOR FAILURE OF THE
C
HECK FOR FAILURE OF THE COOLANT FLOW SWITCH
C
HECK THE BUTTON FOR MALFUNCTION OR LOOSE CONNECTIONS
C
HECK ALL WIRING TERMINALS FOR CONTACT AND TIGHTNESS
C
OMPRESSOR WILL START WHEN STAGE
10 PSIG.
DROPS BELOW
C
HECK CONTROL WIRE CONNECTIONS
. C
CONTACTOR COIL
AUXILIARY CONTACTS
C
ORRECT THE SITUATION IN ACCORDANCE WITH THE
INSTRUCTION IN THE
SECTION OF THIS TROUBLESHOOTING GUIDE
.
COMPRESSOR
D
IAGNOSE CAUSE IN ACCORDANCE WITH THE INSTRUCTIONS ON
LED . C
THE DISPLAY
.
COMPRESSOR
C
ONTACT AN AUTHORIZED
.
REPAIRS
L
OWER FULL LOAD PRESSURE SETTING AT CONTROL PANEL
C
HECK FLUID FILTER AND FLUID PUMP FOR PLUGGING
FLUID SUPPLY TEMPERATURE AT INLET TO FLUID PUMP FOR
.
FOULED COOLER
®
Quincy Compressor - QSD™
Section IX - Troubleshooting
Q
UINCY SERVICE TECHNICIAN
ORRECT CAUSE AND RESTART
HAT ( ).
PROBE S
2
DISCHARGE PRESSURE
. C
HECK FOR POWER TO
HECK SIGNAL WIRES FROM CONTACTOR
.
H D A T
IGH ISCHARGE IR
. R
ORRECT CAUSE AND RESTART
Q
UINCY SERVICE TECHNICIAN FOR
.
.
.
.
.
.
.
EMPERATURE
ESTART THE
.
. C
HECK
71