icetro IM Series, Installation, Service & Operation Manual

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1. With Water Curtain closed, Dump Valve and Water Valve are energized for 15 seconds.(set time) With brackish water pumped
from the Sump Trough, Water Pump and Dump Valve are de-energized.
2. After 15 seconds Dump Valve is de-energized. But Water Valve is energized until water level sensor reaches high level plus 15
seconds. Fan motor energized after 5 seconds with Water Curtain closed.
3. When water contacts Ice Thickness Sensor for 7 continuous seconds, the machine enters defrost.
4. Hot Gas Valve are energized for approximately 50 seconds. At this time, the Pump Motor and the Water supply valve are de-
energized.
5. Compressor and Hot Gas Valve continue to defrost evaporator until ice falls from evaporator plate.
6. Ice falling from evaporator cause Water Curtain open then closes when ice clears the Evaporator signaling defrost termination.
7. With the Curtain closed, the machine begins another cycle.
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After shut down due to full bin level and lighting of “Full Lamp”, removal of ice from bin will cause the Curtain to close wh ich c
loses the Curtain Switch and energize the machine with the same steps as “INITIAL START - UP”.
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* Normal continuous operation starts a new cycle with steps 1 through #7.
NORMAL CONTINUOUS SEQUENCE OF OPERATION DURING ICE MAKING MODE IM SERIES