never leave a furnace running without a functional limit switch

this unit reduces coil heat and extends the life of internal electronics

20" WC rating but the switch doesn't close continuity

the Danfoss BML valve features a handwheel-operated diaphragm that ensures a hermetic seal

Johnson Controls P499VCP-105K Pressure Transducer 30067439-890 never leave a furnace runningThe Johnson Controls P499VCP 105K is a professional grade electronic pressure transducer kit engineered for high accuracy performance in commercial refrigeration and HVAC systems. Built with a single piece 17 4PH stainless steel pressure port, this unit is designed to eliminate common failure points like O rings and welds, providing a robust, leak proof solution for demanding environments. This 0 to 500 PSI pressure transducer produces a linear 0 to