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Page 42 6017 Series Hot Oil Large Temperature Control Units
Use the status board to optimize unit performance. For example, if
you observe a rapid cycling of the Heater and Cool Solenoid
indicators, the unit is operating with a process inefficiency; see the
Troubleshooting chapter for more information.
What follows is a description of system status board indicators.
Status Indicator Lights
Pump Reverse Indicator Light
The Pump Reverse indicator light illuminates when the unit pump
runs in reverse.
Pump Forward Indicator Light
The Pump Forward indicator light illuminates when the unit
pump runs in the normal forward direction. This indicator typically
illuminates continuously during normal operation.
Heater On Indicator Light
The Heater On indicator illuminates when the heater energizes.
This indicator illuminates intermittently when the controller
energizes and de-energizes the heater as the heating cycle requires.
Cool Solenoid Indicator Light
The Cool Solenoid indicator illuminates when the cooling
solenoid energizes. This indicator illuminates intermittently as the
controller energizes the cooling solenoid; it is used only on the
optional heat exchanger.
Vent Solenoid Indicator Light
If the Autovent option is present. The
Vent Solenoid indicator
illuminates when the venting solenoid energizes during venting
sequences.
Mode Indicator Lights
Select the unit operating mode by using the selection switch.
Power On Mode Indicator Light
The
Power On mode indicator light illuminates to indicate that the
control circuit is energized in the unit.