a defrost cycle timer

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it provides a reliable drop-in solution for 13 SEER and higher systems

allowing technicians to select the appropriate range for specific differential pressure requirements

making it a versatile choice for diverse residential and light commercial applications

Lochinvar & A.O. Smith 100110880 Valve 321894-708 a defrost cycle timerThe Lochinvar & A. O. Smith 100110880 Valve is a professional grade 1" T&P relief valve engineered for high capacity water heater temperature and pressure protection. Designed with a 150 PSI pressure rating and a 210F temperature relief threshold, this valve serves as a critical safety component in both commercial and heavy duty residential applications. The 3" probe extension ensures accurate internal tank sensing, making it an ideal A. O. Smith