Scotsman MAR 106, Service Manual

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5) Disconnect the discharge line from the
compressor.
6) Remove four bolts, lockwashers and washers
which secure the compressor to the Chassis
mounting base.
7) Slide the compressor and remove it through
the rear side opening of the Cabinet.
B. To replace the Compressor Assembly, reverse
the removal procedures.
5. REMOVAL AND REPLACEMENT OF THE
WATER COOLED CONDENSER.
NOTE. Always install a replacement Drier,
anytime the Sealed Refrigeration System is
opened. Do not replace the Drier, until all
other repairs or replacements have been
completed.
A. To remove Condenser:
1) Recover the refrigerant from the system and
transfer it in a bottle so to reclaim or recycle it.
2) Unsolder the refrigerant inlet and outlet lines
from the condenser.
3) Disconnect the water inlet and outlet lines
from the condenser.
4) Remove bolts, lockwashers and washers
which secure the Condenser to the Chassis
mounting base.
5) Remove the Condenser from cabinet.
NOTE. Throughly evacuate the System to
remove moisture and non-condensable.
B. To replace the Condenser, reverse the
removal procedures.
6. REMOVAL AND REPLACEMENT OF THE
WATER REGULATOR ASSEMBLY
(Water-cooled Models)
A. To remove the Water Regulator Assembly:
1) Recover the refrigerant from the system and
transfer it in a bottle so to reclaim or recycle it.
2) Unsolder the capillary line from the Water
regulator assembly where connected at the
process header.
3) Disconnect the water inlet line at the rear of
the water regulator.
4) Disconnect the condenser water inlet tube at
the front of the water regulator.
5) Remove two screws, lockwashers and
washers which attach the Water Regulator
Assembly bracket to the Chassis base and
remove the Water Regulator Assembly and
bracket.
NOTE. Throughly evacuate the System to
remove moisture and non-condensables.
B. To replace the Water Regulator Assembly
reverse the removal procedures.
7. REMOVAL AND REPLACEMENT OF THE
DRIER
A. To remove the Drier:
1) Recover the refrigerant from the system and
transfer it in a bottle so to reclaim or recycle it.
2) Unsolder the refrigeration lines at each end of
Drier and remove the Drier.
B) To replace the Drier:
CAUTION - 1. If the factory seal is broken
on the replacement drier, exposition it to
the athmosphere, more than a few
minutes, the Drier will absorb moisture
from the atmosphere and loose
substantial ability for moisture removal.
2. Be sure the replacement Drier is
installed with the arrow positioned in the
direction of the refrigerant flow.
1) Remove the factory seals from the
replacement drier and install the drier in the
refrigerant lines with the arrow positioned in
the direction of the refrigerant flow.
2) Solder the refrigeration lines at each end of
drier.
3) Purge the system and check for leaks.
4) Throughly evacuate the system to remove
moisture and non-condensables.
5) Charge the system with refrigerant, by weight.
SEE NAMEPLATE.
6) Re-mount all Service Panels.
8. INSTRUCTION FOR REMOVAL AND
REPLACEMENT OF REFRIGERANT
MECHANISMS OF SCOTSMAN ICE
MAKERS "MAR" SERIES
1. Before removing the refrigerant manifold it is
necessary - at first - to close the valve on
liquid line. Upon low pressure switch cut-off,
the main switch must be put in "OFF"
position,then it is necessary to purge the
refrigerant system. After these operations,
the flare fitting at the inlet of refrigerant manifold
can be disconnected as shown.
2. Remove the 4 allen screws of refrigerant
outlet fitting to manifold.
3. Unloose and remove the 6 nuts with respective
washers that secure the refrigerant manifold (1).
4. When removed the refrigerant manifold
unloose and remove one of the three screws
(11) securing the seal mechanism ring to the
drum shaft journal.