Unscheduled Shutdown; Thermal Overload Relays Tripping - Quincy QGV-100 Instruction Manual

Probable Causes:

unscheduled Shutdown:

h
igh discharge air temperature
p
ower failure
f hat
aulty sensors
l
oose wire connections

thermal overload relays tripping:

e
xcessive discharge pressure
l
ow voltage
l
oose motor or starter wiring
f
aulty motor
Section VII - Troubleshooting
Corrective action:
c
orrect the situation in accordance
with the instruction in the
d
ischarge
this troubleshooting guide
compressor
c
heck power supply and transformer fuses
c
ontact a qualified service technician for
repairs
c
heck all wiring terminals for contact
and tightness
l
ower full load pressure setting at
control panel
c
heck voltage and amperage while
operating at full load pressure
c
heck all connections for tightness
c
heck motor starter wiring before
removing motor
have tested at motor manufacturer repair
center
Quincy Compressor-QGV Series
a t
ir emperature
.
.
.
.
. r
emove motor and
.
"h
igh
"
section of
. r
estart the
.
.
.
6