This SPST thermal switch features a durable bimetal construction designed for high-cycle longevity in demanding heating cycles

technicians should verify static pressure and temperature rise across the heat exchanger

maintaining precise valve positioning and shut-off capability

With a 24V coil rating and 1/10 HP capacity

ensuring downstream tools and valves receive consistent air volume under load

Carrier 00PPG000492100A Pressure Switch 30067439-890 This SPST thermal switch featuresThe Carrier 00PPG000492100A Pressure Switch is a mission critical OEM replacement part designed for precision pressure monitoring within Carrier, Bryant, and Payne HVAC systems. This switch is calibrated for a 160 In cut in and 204 Out cut out profile, ensuring the inducer motor or refrigerant circuit maintains exact operational safety limits. As the direct cross reference for the obsolete 00PPG000453600A and a replacement for HK02ZA440, it offers