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Page 28 Portable Hot Oil Temperature Control Units
Setpoint Numeric LED
During normal operation, the setpoint LED on the controller displays the process set point
you want the chiller to maintain. It also displays parameter and pre-set function values during
setup.
RUN LED
The RUN LED lights when the controller is in the “Run mode.”
HIGH HEAT LED
The HIGH HEAT LED lights when the controller output energizes the high heat heater
contactor.
LO HEAT LED
The LO HEAT LED lights when the controller output energizes the low heat heater
contactor.
COOL LED
The COOL LED lights when the controller output energizes the cooling valve.
FLUID PRESSURE LED
The FLUID PRESSURE LED is not used.
SAFETY THERMO LED
The SAFETY THERMO LED lights when the independent safety thermostat trips.
HI/LO ALARM LED
The HI/LO ALARM LED is lit during high or low temperature conditions compared to the
setpoint.
PROBE FAIL LED
The PROBE FAIL LED lights when either the To Process or From Process temperature
probes fail.
MOTOR FAIL LED
The MOTOR FAIL LED is not used.
5-3 Using Controller Keys
Setpoint Key
Press and hold the setpoint key together with either the UP or DOWN keys to adjust the
setpoint.
Enter Key
Pressing the Enter Key stores the value or menu item change.