the 100208093 is the current manufacturer-specified replacement for the older GKT2063 part number

By throttling the liquid flow from the condenser to the receiver

this manual reset limit switch serves as a primary safeguard against combustion gases escaping the heat exchanger

Can this switch be used in positive or negative pressure applications

Resideo L4006E1042 Aquastat Controller 323055-751 the 100208093 is the currentThe Resideo L4006E1042 Aquastat Controller is a professional grade high limit aquastat engineered for precision temperature regulation in hydronic systems, including boilers and storage tanks. This immersion type device features a manual reset mechanism, ensuring system safety by requiring a physical intervention if temperatures exceed the designated setpoint. Designed with a 130F to 270F operating range, it utilizes SPST contacts that break on