Honeywell High Limit Aquastat

Aquastat Controllers are immersion type devices for limiting or regulating the temperature of liquids in boilers, storage tanks and other applications where temperature control is required. Immersion type controllers for hydronic heating systems that turn off the burner whenever the boiler water temperature rises to the set point. At the set point temperature, a diaphragm-actuated snap switch breaks the power supply to the burner primary control.|Totally enclosed micro switch snap-acting switches operate on temperature rise to set point|High limit Aquastat controller has adjustable set point|Models available for use with immersion wells or for direct immersion if faster response is needed|A factory-set stop is available on L4080 to prevent setting the control at too high a temperature|Breaks contact on temperature rise to set point|Includes siphon loop|Liquid fill in sensing element expands as the boiler temperature rises|At the set point temperature, a diaphragm-actuated snap switch breaks the power supply to the burner primary control|Maximum 40 degree F above set point or 265 degree F, whichever is lower|Operating temperature range (F)100 degree F to 200 degree F