UNIT WIRING DIAGRAM
The emergency thermal switches are actuated in case of unscheduled power outage or wrong
selected control system.
The automatically resettable thermal switch with response tempe50 °C resets to operating
condition after the heater cooling.
Reset of the manually resettable thermal switch with response tempe90 °C is as follows:
Disconnect the unit from power mains.
Let the heater fully cool down.
Remove the emergency thermal switch cap.
Press the Reset button using a rod of non-conducting material. Troubleshoot the unit overheating
and make steps to prevent it.