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NOTE. Thoroughly evacuate the system to
remove moisture and non condensables after
condenser replacement.
P. REPLACEMENT OF WATER
REGULATING VALVE
(WATER COOLED MODELS)
1.
Remove front and rear panels.
2
Close the shut-off valve on the water supply
line and disconnect it at the rear of the flaker.
3.
Remove corbin clamp and disconnect the
water hose from the outlet of water regulating
valve.
4.
Unloose the nut securing the water regulating
valve to the unit frame.
5.
Recover the refrigerant from the system and
transfer it in a container so to reclaim or recycle
it.
6.
Trace the water regulating valve capillary
tube and unsolder its end from the refrigerant line
then remove it from the unit.
NOTE. It is imperative to install a replace-
ment drier whenever the sealed refrigeration
system is open.
Do not replace the drier until all other repairs
or replacements have been completed.
7.
To install the replacement water regulating
valve follow the above steps in reverse.
NOTE. Thoroughly evacuate the system to
remove moisture and non condensables after
water regulating valve replacement.
NOTE. The water flow that passes through
the valve can be adjusted by means of the
valve setting stem in order to have a
condensing pressure of 9.5 bars (138 psig).
Q. REPLACEMENT OF COMPRESSOR
1.
Remove back and front panels.
2.
Remove the cover and disconnect the
electrical leads from the compressor junction
box.
3.
Recover the refrigerant from the system and
transfer it in a container so to reclaim or recycle it.
4.
Unsolder and disconnect both the suction
line and the discharge line from the compressor.
5.
Remove the four compressor mounting bolts
and the compressor from the unit base.
6.
Unsolder suction and process header from
compressor and retain it to be used on new
compressor.
NOTE. It is imperative to install a replace-
ment drier whenever the sealed refrigeration
system is open.
Do not replace the drier until all other repairs
or replacements have been completed.
7.
To install the replacement compressor follow
the above steps in reverse.
NOTE. Thoroughly evacuate the system to
remove moisture and non condensables after
compressor replacement.
R.
REPLACEMENT OF THE GEAR MOTOR
MAGNETIC SENSOR
1.
Remove top and back panel.
2.
Unloose the three screws securing the
plastic cover to the top of the gear motor and
remove it.
3.
Unloose the two screws securing the
magnetic sensor to the plastic housing and
withdraw it from its seat.
4.
Trace the gear motor magnetic sensor
terminal plug on the rear side of the control box
(red with four terminal pins) and draw it out from
its socket by carefully slackening the fastening
tie.
5.
To install the replacement gear motor
magnetic sensor follow the above steps in
reverse.
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