Section VIII - Troubleshooting
Low Receiver Pressure (continued):
d
ifferential
Pilot
valve
not
set
correctly
a
ir
Pressure
setting
not
set
correctly
f
aulty
receiver
Pressure
gauge
or
sensor
High Receiver Pressure:
a
ir
Pressure
setting
not
set
correctly
i
nlet
valve
not
closing
at
lower
air
demand
B
lowdown
valve
not
relieving
receiver
Pressure
High Discharge Air Temperature
and/or High Fluid Injection
Temperature:
i
nadequate
circulation
of
cooling
air
at
the
cooler
l
ow
fluid
level
in
reservoir
c
aBinet
Panels
removed
c
ooler
Plugged
f
luid
filter
Plugged
e
xcessive
amBient
temPeratures
i
ncorrect
fan
rotation
i
mProPer
fluid
a
djust
differential
Pilot
valve
to
achieve
desired
modulation
range
.
a
djust
air
Pressure
switch
to
achieve
desired
cut
-
in
and
cut
-
out
Pressure
.
c
heck
and
rePlace
as
necessary
.
a
djust
air
Pressure
setting
to
achieve
desired
cut
-
in
and
cut
-
out
Pressure
. e
nsure
unload
Pressure
does
not
exceed
maximum
oPerating
Pressure
.
c
orrect
in
accordance
with
instruction
on
“i
nlet
v
alve
not
oPening
or
closing
in
relation
to
air
demand
”
section
of
this
trouBleshooting
guide
.
c
heck
control
solenoid
and
Blowdown
valve
.
c
heck
location
of
cooler
and
assure
no
restriction
to
free
circulation
of
cooling
air
.
c
heck
cooler
fin
and
clean
as
necessary
.
a
dd
fluid
to
recommended
level
. c
heck
fluid
system
for
leaks
.
r
ePlace
all
Panels
,
ensure
all
sealing
surfaces
and
materials
are
satisfactory
.
c
lean
cooler
,
find
and
correct
cause
of
contamination
.
r
ePlace
fluid
filter
element
(
s
).
m
aximum
amBient
for
ProPer
oPeration
is
listed
in
data
sheet
. v
entilate
room
or
relocate
comPressor
.
c
orrect
rotation
is
with
the
fan
Pushing
the
air
through
the
cooler
. r
everse
motor
starter
leads
l
1
and
l
2
.
u
se
recommended
fluids
only
. r
efer
to
“c
omPressor
f
luids
”
section
of
this
manual
.
72
Quincy Compressor-QGB
™
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