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including 21-957
Rugged Reliability: Features all-metal construction for long-term survival in high-traffic commercial zones and industrial mechanical rooms
Universal threaded nut for secure connection to the pilot bracket and valve body
it should only be used in systems where that exact rating is required to ensure safe combustion
While some harnesses appear similar
Aaon P81580 Limit Switch including 21-957The Aaon P81580 Limit Switch is a critical safety component designed for high performance HVACR applications, specifically within Aaon rooftop units and air handlers. This 170 200F Auto Reset Limit Switch features a 7 inch insert depth, ensuring precise thermal monitoring within the heat exchanger or airflow path. As a normally closed thermal switch, it provides essential circuit interruption when temperatures exceed the 200F threshold, automatically
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