Quincy Compressor QSB Series, Инструкция по эксплуатации

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Section VI - Servicing
34
Quincy Compressor ® - QSB/T ™
Electronic Control (optional)
Prior to attempting any repairs of the electronic control or
related components, disconnect and lock out all power
supplies to the compressor plus any remote controllers.
Assure yourself that power is removed from the
compressor by checking for any AC voltage at the line
side of the motor starter.
Replacing Sensors or Transducers
WARNING!
Prior to touching any portion of the printed circuit
board, you will need to ground yourself to remove
any static electricity using a grounding wrist
strap. After assuring the compressor is properly
grounded, you may clip the grounding wrist strap
to any exposed metal on the frame of the
compressor.
To replace a temperature sensor (HAT probe), disconnect
conduit from elbow of probe. Cut wires and remove
probe from the discharge end of the airend. Install new
probe into discharge tube. Connect wires of new probe to
existing wires using suitable splice and insert into conduit.
Connect conduit to elbow of probe. Complete HAT tests
and assure system functions correctly.
To replace a pressure transducer, open enclosure door.
The pressure transducer is located in the upper left-hand
corner of the panel. Remove wire channel cover. Trace
wires from transducer to the microprocessor. Disconnect
transducer wires at microprocessor. Remove transducer
from Teflon bushing.
Replacement of the Teflon bushing
is recommended any time a transducer is replaced.
Install new Teflon bushing and transducer. Connect
transducer wires to microprocessor and reinstall wire
channel cover.
Replacing Electronic Control
Prior to replacing electronic control, gather and record
information regarding total running hours, separator
hours, air filter hours, fluid filter hours and fluid service/
sample hours. This data will be transferred to the
replacement control prior to start-up.
To replace the electronic control, remove the screws
attaching control to door of enclosure. Remove and
discard wire tie-wraps.
NOTICE!
Prior to removing any wiring from the electronic
control, identify individual wire location. Refer
to the electrical wiring diagram.
Install new electronic control panel and install wiring in
accordance with electrical wiring diagram. Attach to door
of enclosure using existing hardware. Install new wire
tie-wraps to secure wiring to wire bundle.
Operational test
Remove tag and lock out tools. Restore power to unit. If
electronic control was replaced, refer to the Program
Setup Menu to program the replacement electronic
control. Once completed, perform an operational test to
assure unit is operating correctly.
Air and Fluid Tubing
Flareless tubing is used in the air piping to eliminate pipe
joints and provide a cleaner appearance. Replacement
tubing and fittings are available; however, special
installation procedures must be followed. Your
authorized distributor has the necessary instructions and
experience to perform these repairs.
WARNING!
Failure to install flareless tubing or fittings
correctly may result in the tubing coming apart
under pressure. Serious injury and property
damage may result.