Follett HCC1000A User Manual download pdf (Page 13)

Water system

The water level in the evaporator is controlled by a feed solenoid and level detecting sensors. Referencing the

diagram below, water sensing rods extend down into the reservoir at the end of the evaporator assembly. The

system works via electrical conductivity as follows:

One of the longest probes is a common. When water is between any of the other probes and the common, the

PC board will sense the activation. During normal operation, the water level rises and falls between the Normal

High and Normal Low sensors. As water is consumed to make ice, the level will fall until the Normal Low sensor is

exposed, triggering the water feed solenoid on. Water will fill until the Normal High sensor is activated.

Note: The potable water dissolved solids content must be greater than 10 ppm for the water control system to

function properly. If using reverse osmosis water filtration system, ensure T.D.S level is greater than 10 ppm.

Alarm LO

Normal HI

Common

Normal LO

Normal

operating

range

Water system diagram

Water level diagram

1 2 ... 8 9 10 11 12 13 14 15 16 17 18 ... 39 40

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Follett HCC1000A User Manual Page 13