The Reznor 103323 Limit Switch is a critical OEM safety component engineered for precise thermal monitoring in Reznor HVAC equipment

a dedicated T&P (temperature and pressure) relief valve must be used

018-inch orifice to maintain the correct BTU input for the pilot flame

officially designated as the LF174A-125 1

ensure the power supply matches the 240V nameplate requirements

Watts 0061970 Preventer L99H008 The Reznor 103323 Limit SwitchThe Watts 0061970 9D M3 backflow preventer is a professional grade dual check valve designed for continuous pressure applications in commercial and residential settings. Certified under ASSE 1012, this 1 2 inch backflow preventer with vent effectively isolates the domestic water supply from non health hazard contaminants. Its forged brass body and stainless steel internal components provide superior durability when installed on boiler feed lines,