EnPro Quincy Compressor QPHT 100, Инструкция по эксплуатации

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High Temperature Refrigerated Air Dryers
Remove the screws attaching the left
side panel to the cabinet and remove
the panel. (Refer to Figures 1 – 3.)
notice!
The air dryer system will not operate
properly unless all panels are reinstalled
after any maintenance work.
Remove compression fitting on
the elbow attached to the particle
strainer of the separator assembly
by turning the hex head nut on the
fitting. Remove the plastic tubing
connecting the particle strainer and
the drain valve solenoid.
Close the shut-off valve on the
particle strainer, drain the down
stream line of the particle strainer
with the PUSH-TO-TEST button on
the auto drain. Unscrew and clean
out screen, replace screen and open
shut-off valve.
Remove lower bowl bracket by
unfastening the two machine screws
and nuts that hold the lower bracket
to the back panel.
Turn the separator bowl
counterclockwise to remove. A pipe
wrench may be necessary to remove
the bowl.
notice!
When reinstalling the separator bowl,
make sure the O-ring is in place on
the top of the bowl and that the O-
ring seats properly on the separator
housing. Air leaks may occur if O-ring
is not seated.
Clean the bowl assembly with a mild
soap solution and cold water.
Inspect the drain hoses for any kinks.
Remove the drain hose inside the
air dryer system and the drain hose
outside the unit and blow into the
a.
b.
c.
d.
e.
f.
g.
line to clear any sediment or foreign
material from the lines.
Reinstall the moisture separator
bowl, the lower filter bracket, the
particle strainer assembly, and the
two drain hoses. If the separator still
will not drain, contact Quincy or your
distributor to order a new separator
assembly.
Condenser coil cleaning - Remove ambient
filter (if equipped). Remove either the right
or left side panel screws and panel. Using
compressed air, blow collected dust and
contamination off condenser from inside to
outside.
Hot gas bypass valve adjustment - The
hot gas bypass valve adjustment regulates
the flow of refrigerant through the heat
exchanger to maintain the proper suction
pressure. The suction pressure must be
maintained within the proper range for
normal operation. The needle on the
refrigerant suction pressure gauge should
be in the blue zone.
Hot gas bypass valve adjustments
must be made while the unit is
operating. DO NOT TURN THE UNIT
OFF.
Remove the left side panel on the
cabinet. The hot gas bypass valve
adjustment nut is located on the
refrigerant discharge line near the
compressor.
If the suction pressure gauge
indicator arrow is below 25 PSIG,
turn the adjusting nut CLOCKWISE. If
the suction pressure gauge indicator
needle is above 33 PSIG, turn the
adjusting nut COUNTERCLOCKWISE.
Let the unit operate for a few minutes
and read the suction pressure gauge
again. Continue to adjust the valve
until the indicator arrow is in the
BLUE ZONE between 25 PSIG and
33 PSIG. Adjust only 1/4 of a turn
at a time. ALLOW 4 — 5 MINUTES
BETWEEN ADJUSTMENTS.
h.
a.
b.
c.
Quincy Compressor-QPHT
13
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