This is an automatic limit switch

5 HP to 15 HP

Do these tools work for both steam and hot water applications

Repeated cycling caused by a faulty defrost board or loose electrical connections can lead to contact pitting or a burned-out solenoid coil

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Robertshaw 1951-536 Thermopile Els PW 17895 This is an automatic limitThe Robertshaw 1951 536 Thermopile is a heavy duty, 36 inch threaded thermopile designed for use in self powered gas control systems commonly found in commercial deep fryers, gas fireplaces, and floor furnaces. Engineered to generate a consistent 750 millivolt (mV) output, this coaxial style generator utilizes two dissimilar metals to convert thermal energy from a steady pilot flame into electrical current, sufficient to energize a millivolt gas valve