11 Electric Control Panel
27
THIS SECTION APPLIES ONLY TO CONTROL PANELS SUPPLIED BY HOWE, ORDERED AS
AN OPTION WITH THE MACHINES (Bare Machines).
Components & functions
Panel Layout
1) Motor Contactor
Provides power to the drive motor & water pump. Energized during freezing and pump down cycle,
then timed off for shut down. Auxiliary contact provides power to the liquid solenoid valve when
contactor is energized.
2) Control Transformer
Provides 24 Volt control power to control panel components, Control module, motor contactor, and
indicating lights.
3) Control Module (E20T48)
Main control processor, incorporates motor overload, operating circuit, off- delay circuit. Controls
motor contactor and solenoid valve power.
4) Photo Eye power Module
processes signals from electronic eye level control, has built in time delays. Shuts machine off when
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