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Prodigy Eclipseä 600, 800, 1000
Technicians Only: Harvest Cycle Sequence of Operation
When harvest begins, the controller connects
power to the external relay for the CP's solenoids.
It also connects power to the vapor inlet solenoid
valve in the cabinet of the EH222.
The vapor inlet solenoid valve and the condenser
bypass valve open. The receiver inlet solenoid
valve closes. Vapor flows from the condensing unit
to the EH222 evaporator inlet.
The water pump and purge valve will be on for a
period of time during the first part of harvest to
purge the water reservoir of a portion of the water.
The inlet water solenoid valve opens to fill the
reservoir when the water level sensor indicates an
empty sump. It continues to fill when the pump and
purge valve have shut off and will stop filling when
the water level sensor senses a full sump.
Harvest will continue until both curtains have
opened. The curtain switch, attached to the edge
of each curtain, will sense the curtain opening.
If the curtains both close, harvest will terminate
and the freeze cycle will resume.
If one or both of the curtains remains open for 30
seconds, the machine will shut down.
February 2008
Page 37
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