Quincy Compressor QSD 65040-AB Instruction Manual page 76

Section IX - Troubleshooting
Probable Causes:
High Discharge Air Temperature (continued):
I
NCORRECT FAN ROTATION
B
LOCKED WATER FLOW OR AIR FLOW
C
LOGGED AIR FILTER
F
AULTY SOLENOID VALVE
F
AULTY GAUGES
F
AULTY INDICATOR
B
LOWDOWN VALVE FAILURE
A
IREND FAILURE
RTD
READING INCORRECTLY
Compressor does not Unload when there is no Air Demand:
I
NCORRECT AIR PRESSURE SENSORS
SETTING
F
AULTY AIR PRESSURE SENSORS
F
AULTY SOLENOID VALVE
L
EAKS IN CONTROL LINES
L
EAKS IN SERVICE LINES
F ( )
AULTY LIFT VALVE S
F
AULTY BLOWDOWN VALVE
74
Corrective Action:
T
HE FAN SHOULD PUSH AIR THROUGH THE COOLERS
INCORRECT
C
LEAN COOLER
CONTAMINATION
C
LEAN OR REPLACE AS NECESSARY
C
HECK AND REPLACE
C
HECK AND REPLACE AS NECESSARY
C
HECK AND REPLACE AS NECESSARY
C
HECK AND REPLACE AS NECESSARY
BE EXHAUSTING AIR DURING UNLOADED OPERATION
C
ONTACT AN AUTHORIZED
C
ONTACT AN AUTHORIZED
A
DJUST TO PROPER SETTING
R
EPLACE SENSORS
R
EPAIR OR REPLACE AS NECESSARY
C
HECK ALL CONTROL LINE FITTINGS AND TUBINGS
C
HECK LINES BEFORE
R
EPAIR OR REPLACE AS NECESSARY
( )
S R
EPAIR OR REPLACE AS NECESSARY
Quincy Compressor
,
REVERSE FAN MOTOR STARTER LEADS
. L
OCATE AND CORRECT CAUSE OF
.
4-
WAY SOLENOID VALVE AS NECESSARY
Q
UINCY SERVICE TECHNICIAN
Q
UINCY SERVICE TECHNICIAN
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ACK
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AND
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.
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OTH MUFFLERS SHOULD
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UP ODE ONLY
.
.
.
.
.
.
2
.