Watts 0066123 Valve 340155-7026 and Luxaire are all brands

and Luxaire are all brands under Johnson Controls (JCI)

Common Questions What is the maximum surge pressure for this switch

Common Questions What is the maximum operating pressure for this valve

and verify that all electrical connections to the ignition module are secure and free of debris

Failures typically occur due to moisture-induced corrosion at the pins

Watts 0066123 Valve 340155-7026 and Luxaire are all brandsAs a seasoned technician, you know that consistent pressure management is the only way to prevent tank fatigue and catastrophic failure. The Watts 0066123 Valve (Model 100XL 8) is a field proven temperature and pressure relief valve designed for heavy duty hot water storage tanks and commercial heaters. This 3 4 inch T&P valve is engineered with a brass body and a stainless steel spring to handle rigorous cycles without binding. The standout feature