Icematic N 132M, Service Manual

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to shut OFF electrical power to Icemaker, should a loss
of water occur to the water cooled Condenser or a
burnt out of the fan motor on air cooled versions. The
high Pressure Control is manual reset with reset but-
ton located on the rear side of the machine and a mon-
itoring light on the Front Console Panel.
9. Water Regulating Valve
(Water Cooled Models)
The Water Regulating Valve functions maintain a con-
stant Compressor head pressure, by regulating the
amount of incoming water flow through the Condenser,
on water-cooled models.
The valve operate through the refrigerant system high
side pressure. Rotating the adjusting screw located on
top of the valve, can INCREASE or DECREASE the
water flow through the watercooled Condenser, which
in turn, will DECREASE or INREASE the Compressor
operating head pressure.
10. Water Distribution System
The Water Distribution System function to eventy sup-
ply water to all cells of the evaporator plate.
The water pump pumps water from the sump to the
tee. From there water is channeled through the vertical
tygon tube to the water distributors, above the evapo-
rator plate, and from the holes in the distributor tube
water flows to the cells on one side of the evaporator
plate.
Gravity flow returns the unfrozen excess portion of
water to the sump reservoir for recirculation.
11. Water Drain Solenoid Valve
The Water Outlet Solenoid Valve functions in conjunc-
tion with the water pump to flush-out the sump assem-
bly at the beginning (first 40") of every harvest cycle.
This action cleans-up and rinses the sump during each
harvest cycle preventing dangerous water minerales
concentration.
12. Thermostatic Expansion Valve
The Thermostatic Expansion Valve regulates the flow
of refrigerant to the evaporator and reduces pressure
of liquid refrigerant from condensing pressure to evap-
orating pressure.