Quincy QGB 20, Инструкция по эксплуатации

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Section VIII - Troubleshooting
Compressor Does Not Revert To
Load When Service Line Pressure
Drops To Reset Pressure:
f
aulty air Pressure sensor
l
oose wiring connection
j
ammed air inlet valve assemBly
f
aulty solenoid
f
aulty differential Pilot valve
Compressor Will Not Time-out Or
Shut Down When Unloaded (Auto/
Dual Only):
l
eaks in control lines
l
eaks in service lines
f
aulty air Pressure sensors
Excessive Water in Plant Air
Distribution System:
c
logged moisture seParator
/
traP
i
nstallation
/a
PPlication
f
aulty cooler
/
leaks
Pressure Relief Valve Exhausting:
d
ifferential Pressure regulator not set correctly
a
ir Pressure not set correctly
a
ir inlet valve not closing ProPerly in relation to
air demand
P
lugged seParator
f
aulty receiver Pressure gauge
r
ePair or rePlace as necessary
.
c
heck and tighten wiring terminals
.
c
heck and rePair air inlet valve
.
r
ePair or rePlace as necessary
.
o
rifice Plugged
. c
lean or rePlace as
necessary
.
c
heck and rePair any leaks
.
c
heck Plant air distriBution system for leaks
.
r
ePlace as necessary
.
c
lean or rePlace as required
.
c
heck other comPressors on same system
.
r
ePlace cooler
.
a
djust differential Pressure regulator to
oBtain desired modulation range
.
r
eadjust air Pressure switch so that the
comPressor unloads at the desired Pressure
.
c
orrect in accordance with the instruction
in
“i
nlet valve not oPening or closing in
relation to air demand
”
section of this
trouBleshooting guide
.
r
ePlace with new air
/
fluid seParator
.
c
heck gauge for accuracy and rePlace if
necessary
. a
djust control settings
.
76
Quincy Compressor-QGB
™
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