MARMON 621058724, Тренировка

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Key Safety Controls
WCC Controls and Electrical
The WCC control circuit is a series circuit consisting of the following components:
1. Bin Control/s – Electrical power is run through the solid state bin control/s (one for the 700). This
circuit consists of a PC Board, thermistor, thermistor locating sleeve and drop tube to direct the ice drop
zone into the bin. The bin control is adjustable and is what stops ice production once ice backs up
partially in the drop tube/s.
2. Low Water Safety Switch – Located in the water float assembly this will stop ice production should the
water supply be interrupted, once water is restored ice production will resume if needed. This consists of
a magnet (attached to the float arm) and a reed switch (attached to the float assembly bracket).
3. Anti-freeze Relay – This relay is used in different ways depending on the model of icemaker but it too
will stop ice production. This relay is wired in with the evaporator gearmotor/s so that if a gearmotor
trips on internal overload power to the compressor is interrupted and ice production stops.
4. Manual Reset Overload – Each gearmotor has a manual reset switch underneath the outer casing,
should an over amperage situation occur this overload trips and stops ice production. The reset must be
manually reset and troubleshot as to the cause.
5. Contactor Coil – Runs the gearmotor and refrigeration systems.
6. Low Side Pressure Switch – Used only on remote refrigeration and typically used to sense start and stop
of ice production is also a safety, should the system be low on refrigerant or the drier be restricted ice
production will stop due to low suction pressure.