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Controls systems
Hot gas valve – The opening of the valve permits to pipe the
refrigerating fluid (overheated after the compression) directly to
the evaporator, without letting it pass through the condenser
thus warming up the evaporator.
Evaporator thermostat – It feels the evaporator temperature
and drives the timer, as previuosly described.
Condenser pressure-switch – It controls and keeps constant
the condensing pressure; it drives the refrigerating fan, it drives
the condenser water inlet valve.
Timer – See next page.
Water-inlet valve (evaporator) – It is open during the
defrosting phase, allowing the water to flow on the evaporator
and, then, into the water basin, to restore the ideal water level to
start a new cycle of ice cubes production.
Water-inlet valve (condenser) – This second water-inlet valve
allows the water to flow through the water condenser.
Contactor – Energized the compressor.
Safety systems
Safety thermostat – Placed on the condenser of the water
models.
It stops the machine working, when the temperature of the water
condenser exceeds a preset threshold value.
Bin thermostat - The bin thermostat stops the ice machine
when it perceives a drop in temperature due to the ice cubes
accumulation in the bin.
The machine only stops during the defrosting phase, as the
timer keeps a second power source active during the production
phase till the phase commutation.
H. P. Safety Presssure switch – It stops the machine working,
when the condensation pressure exceeds the preset threshold
value.
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