For technicians servicing York or Johnson Controls equipment

this electric heater with circuit breaker features high-grade nichrome heating elements and robust thermal limit protection to ensure consistent discharge temperatures and electrical safety

making it a versatile choice for condensers

and various aqueous solutions across HVACR and process cooling systems

McDonnell & Miller 63-HD Head Mechanism THPU32HP7Y For technicians servicing York orThe McDonnell & Miller 63 HD Head Mechanism (Part Number 142600) is a heavy duty field replacement designed for Series 63 low water cut offs. As a veteran grade mechanical LWCO solution, this auto reset head assembly provides essential protection for both hot water and steam boilers in residential and commercial environments. Engineered to manage boiler pressure up to 50 PSI, the 142600 integrates the No. 2 SPDT switch to ensure reliable burner