Sterlco 6017 Series, Operation And Installation Manual

Page: 44 / 71

6017 Series Hot Oil Large Temperature Control Units Page 43
Auto Mode Indicator Light
The
Auto
mode indicator light indicates that the Auto mode is
active and the controller is monitoring the system and controlling
the process.
If the
Auto
light is off and the
Cool Solenoid
indicator light is
illuminated, the controller is disabled and the cooling solenoid is
open, permitting maximum cooling.
If the
Auto
and
Cool Solenoid
indicator lights are off, the unit is
in standby.
Fault Indicator Lights
Pump Overload Indicator Light
The
Pump Overload
indicator light illuminates when the pump is
overloaded. This is an alarm condition , so the audible alarm
activates to notify you of the pump overload fault, and the unit
shuts down.
Always correct the alarm condition before returning to normal
operation!
Low Pressure Indicator Light
The
Low Pressure
indicator light illuminates when the unit has
low heat transfer fluid pressure. This is an alarm condition , so the
audible alarm activates to notify you of the low pressure fault, and
disables controller outputs, permitting the pump to continue to
circulate fluid to avoid damage. If low pressure continues past five
minutes elapsed time, the pump shuts off.
Always correct the alarm condition before returning to normal
operation!
Safety Thermo Indicator Light
The
Safety Thermo
indicator light illuminates when the unit is
overheating. This is an alarm condition , so the audible alarm
activates to notify you of the safety thermo fault, and disables
controller outputs, permitting the pump to continue to circulate
fluid to avoid damage.