Lochinvar & A.O. Smith 100171870 Gas Valve Els PW 17895 and 4-20mA signals with the
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Description
Lochinvar & A.O. Smith 100171870 Gas Valve Els PW 17895 and 4 20mA signals with the and 4 20mA signals with the integrated 500 Ohm resistor Equipment Protection: Prevents terminal boiler failure by interrupting the safety circuit before critical low water thresholds are reached