MovinCool CM12 Service Manual - Manual (Page 30)

Operation Section
30
5.10 Float Switch
• A float switch is installed in the drain pan. The
float switch is a normally closed type switch. If
evaporator condensation cannot be evacuated
and the drain pan becomes full, the float rises,
turning the switch on, which then activates the
warning signal output and stops the unit's
operation. This prevents the drain pan from
overflowing and alerts the user of the situation.
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