you should typically see resistance between 5 and 10 Ohms if the circuit is intact

ensuring system continuity during maintenance

providing the necessary feedback to the integrated control board to maintain the gas valve in the open position

Use this HVAC safety switch to ensure your blower coil units and air handlers meet original factory specifications for both safety and performance

Does the 70-42242-01 include the mounting gasket

Watts 0274513 Relief Valve 319852-301 you should typically see resistanceThe Watts 0274513 is a heavy duty ASME Section IV certified boiler pressure relief valve designed specifically for hot water heating systems and domestic supply boilers. This Watts 174A 3 4 50 model features a 3 4 inch FNPT inlet and outlet with a fixed pressure set point of 50 PSI. Built with a rugged bronze body and a stainless steel spring, it delivers a high discharge capacity of 950,000 BTU hr to prevent catastrophic equipment failure during