Quincy QGB 20, Инструкция по эксплуатации

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Section VIII - Troubleshooting
Integrated Dryer Troubleshooting
(continued):
Unit runs but low air pressure:
s
ystem Pressure low
.
P
recooler and
/
or evaPorator clogged
.
i
ncorrect PiPing
.
a
ir overload
.
u
nit too small
.
e
xcess water in unit
.
Integrated Dryer Troubleshooting
(continued):
Unit runs but low air pressure:
e
vaPorator freeze
-
uP
.
c
logged air comPressor intake filter
.
d
irty air system
.
Unit runs, but air flow erratic or
zero:
f
reeze
-
uP
.
P
recooler and
/
or evaPorator clogged
.
r
estriction in PiPing uPstream from unit
.
Evaporator freeze-up:
h
ot gas ByPass valve out of adjustment
.
i
ncrease Pressure
.
B
ack
-
flush as descriBed in
s
ection
v.
i
ncrease line size and
/
or correct PiPing as
required
.
r
educe overload
.
a
dd another unit or rePlace with larger unit
.
c
heck drain
,
rePair or rePlace if needed
.
a
djust hot gas ByPass valve
.
c
lean or rePlace air intake filter
.
B
ack
-
flush as descriBed in
s
ection
v.
c
heck suction temPerature at evaPorator
outlet or turn off unit and allow it to thaw
to determine if this is ProBlem
. a
djust controls
at no
-
load if freezing is occurring
.
B
ack
-
flush as descriBed in
s
ection
v.
c
orrect as required
.
a
djust suction Pressure
. a
djust hot gas ByPass
valve
.
Quincy Compressor-QGB
™
83
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