Follett HME1010WBT Operation and Service Manual

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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  ll 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  ltration system, ensure T.D.S level is greater than

10ppm.

Normal

operating

range

Normal LO

Common

Normal HI

Alarm LO

Water system diagram

Water level diagram

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Follett HME1010WBT 30" Horizon Elite Water Condenser Ice Machine