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ensuring the inducer motor is moving sufficient combustion air before ignition
this thermostat manages heating element cycles to maintain consistent water temperatures while preventing overheating conditions
This kit is a direct replacement for all sizes of Ultra Gas units and specific Ultra Commercial models
allowing for fast field swaps without recalibrating existing controllers
Watts 0382456 Relief Valve Els PW 17895 ensuring the inducer motor isThe Watts 0382456, also identified as the Series 740 high capacity water relief valve, is a dedicated safety component for large hot water heating boilers and heat storage tanks. This specific 740 3 4 75 model features a 3 4 inch NPT threaded inlet and outlet, factory set to discharge at 75 PSI. With a discharge capacity of 1,886,000 BTU hr, this valve provides critical overpressure protection by utilizing a large orifice and a high lift disc design.