Section IX - Troubleshooting
Probable Causes:
Corrective Action:
48
Quincy Compressor-QSI
®
Failure to Start:
P
OWER
NOT
TURNED
“ON”
B
LOWN
CONTROL
CIRCUIT
FUSE
S
AFETY
CIRCUIT
SHUTDOWN
RESULTING
FROM
HIGH
DISCHARGE
AIR
TEMPERATURE
T
HERMAL
OVERLOAD
RELAYS
TRIPPING
L
OW
VOLTAGE
F
AULTY
START
SWITCH
P
OWER
FAILURE
F
AULTY
CONTROL
RELAY
L
OOSE
WIRE
CONNECTIONS
F
AULTY
H
IGH
A
IR
T
EMPERATURE
S
WITCH
F
AULTY
TRANSFORMER
T
URN
THE
POWER
“ON”
BY
CLOSING
THE
MAIN
DISCONNECT
SWITCH
OR
CIRCUIT
BREAKER
.
R
EPLACE
FUSE
. F
IND
AND
CORRECT
CAUSE
.
C
ORRECT
THE
SITUATION
IN
ACCORDANCE
WITH
THE
INSTRUCTION
IN
THE
“H
IGH
D
ISCHARGE
A
IR
T
EMPERATURE
”
SECTION
OF
THIS
TROUBLESHOOTING
GUIDE
. R
ESTART
THE
COMPRESSOR
.
C
ORRECT
THE
CAUSE
OF
THE
OVERLOADED
CONDITION
,
RESET
OVERLOAD
RELAY
AND
PRESS
THE
START
BUTTON
.
A
SK
THE
POWER
COMPANY
TO
MAKE
A
VOLTAGE
CHECK
AT
YOUR
ENTRANCE
METER
,
THEN
COMPARE
THAT
READING
TO
A
READING
TAKEN
AT
THE
MOTOR
TERMINALS
. U
SE
THESE
TWO
READINGS
AS
A
BASIS
FOR
LOCATING
THE
SOURCE
OF
LOW
VOLTAGE
.
C
HECK
THE
SWITCH
FOR
MALFUNCTION
OR
LOOSE
CONNECTIONS
.
C
HECK
POWER
SUPPLY
TO
THE
UNIT
.
R
EPLACE
THE
RELAY
.
C
HECK
ALL
WIRING
TERMINALS
FOR
CONTACT
AND
TIGHTNESS
.
C
HECK
H A T
SWITCH
. C
ONTACT
A
QUALIFIED
SERVICE
TECHNICIAN
FOR
REPAIRS
.
C
HECK
SECONDARY
VOLTAGE
ON
TRANSFORMER
.
Summary of Contents for QSI 1000
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Page 11: ...Section I General Quincy Compressor QSI 5 MODEL IDENTIFICATION ...
Page 25: ...Quincy Compressor QSI 19 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 65: ...Quincy Compressor QSI 59 THIS PAGE INTENTIONALLY LEFT BLANK ...
Page 66: ...Appendix A Dimensional Drawings 60 Quincy Compressor QSI QSI 220 245 air cooled ...
Page 67: ...Appendix A Dimensional Drawings Quincy Compressor QSI 61 QSI 220 245 water cooled ...
Page 68: ...Appendix A Dimensional Drawings 62 Quincy Compressor QSI QSI 250 300 air cooled ...
Page 69: ...Appendix A Dimensional Drawings Quincy Compressor QSI 63 QSI 250 300 water cooled ...
Page 70: ...Appendix A Dimensional Drawings 64 Quincy Compressor QSI QSI 335 370 air cooled ...
Page 71: ...Appendix A Dimensional Drawings Quincy Compressor QSI 65 QSI 335 370 water cooled ...
Page 72: ...Appendix A Dimensional Drawings 66 Quincy Compressor QSI QSI 440 500 air cooled ...
Page 73: ...Appendix A Dimensional Drawings Quincy Compressor QSI 67 QSI 440 500 water cooled ...
Page 74: ...Appendix A Dimensional Drawings 68 Quincy Compressor QSI QSI 540 600 air cooled ...
Page 75: ...Appendix A Dimensional Drawings Quincy Compressor QSI 69 QSI 540 600 water cooled ...
Page 76: ...Appendix A Dimensional Drawings 70 Quincy Compressor QSI QSI 675 750 air cooled ...
Page 77: ...Appendix A Dimensional Drawings Quincy Compressor QSI 71 QSI 675 750 water cooled ...
Page 78: ...Appendix A Dimensional Drawings 72 Quincy Compressor QSI QSI 925 1000 air cooled ...
Page 79: ...Appendix A Dimensional Drawings Quincy Compressor QSI 73 QSI 925 1000 water cooled ...
Page 80: ...Appendix A Dimensional Drawings 74 Quincy Compressor QSI QSI 1175 1250 1400 1500 air cooled ...
Page 81: ...Appendix A Dimensional Drawings Quincy Compressor QSI 75 QSI 1175 1250 1400 1500 water cooled ...
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