The QAF 81.6M frost protection thermostat is used for freeze protection in air handling units. The thermostat is used, for example, to stop the fan operation, close the outdoor air supply dampers, open the valve, start the hot water heat exchanger pump, etc.

Features:

• aluminium die-cast housing
• capillary reaction length 6 m
• small switching differential
• thermostat range -5 to 15 °C
• IP 54 protection rating
• capillary length 6 m
• manual reset