Section Ix - Troubleshooting - Quincy Compressor QSI Series Instruction Manual

Probable Causes:
Unscheduled Shutdown:
H
IGH DISCHARGE AIR TEMPERATURE
T
HERMAL MOTOR OVERLOAD RELAYS TRIPPING
P
OWER FAILURE
F HAT
AULTY SENSORS
L
OOSE WIRE CONNECTIONS
F
AULTY CONTROL RELAY
Thermal Overload Relays Tripping:
E
XCESSIVE DISCHARGE PRESSURE
L
OW VOLTAGE
L
OOSE OVERLOAD CONNECTION
I
NCORRECT THERMAL OVERLOAD RELAY SETTING
L
OOSE MOTOR OR STARTER WIRING
F
AULTY MOTOR
Corrective Action:
C
ORRECT THE SITUATION IN ACCORDANCE WITH THE
INSTRUCTION IN THE
T
EMPERATURE
. R
GUIDE
C
ORRECT THE CAUSE OF THE MOTOR OVERLOADED
CONDITION
THE RESET BUTTON
C
HECK POWER SUPPLY AND TRANSFORMER FUSES
C
ONTACT A QUALIFIED SERVICE TECHNICIAN FOR
.
REPAIRS
C
HECK ALL WIRING TERMINALS FOR CONTACT AND
TIGHTNESS
R
EPLACE RELAY
L
OWER FULL LOAD PRESSURE SETTING AT CONTROL
.
PANEL
C
HECK VOLTAGE AND AMPERAGES WHILE OPERATING
AT FULL LOAD PRESSURE
T
IGHTEN MOUNTING SCREWS ON THERMAL
OVERLOAD
C
HECK MOTOR NAMEPLATE AND COMPARE TO
OVERLOAD RELAY SETTING
C
HECK ALL CONNECTIONS FOR TIGHTNESS
C
HECK MOTOR STARTER WIRING BEFORE REMOVING
. R
MOTOR
MOTOR MANUFACTURER REPAIR CENTER
Quincy Compressor-QSI

Section IX - Troubleshooting

"H D
IGH ISCHARGE
"
SECTION OF THIS TROUBLESHOOTING
ESTART THE COMPRESSOR
,
RESET THE OVERLOAD RELAY AND PRESS
.
.
.
.
.
.
EMOVE MOTOR AND HAVE TESTED AT
®
A
IR
.
.
.
.
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