including NAHL and PDX series models

Testing with a multimeter should show readings within 6% of the 45 and 7

or improper gas pressure leading to flames "rolling out" of the burner box

ensuring consistent performance in any mounting position

verify the specific vent port size and use the corresponding model

Watts 0066090 Valve including NAHL and PDX seriesThe Watts 0066090 is a heavy duty 3 4 inch T&P relief valve engineered for critical temperature and pressure protection in water heater and storage tank applications. Built with a rugged bronze body and a stainless steel spring, this Series 100XL valve is designed to handle up to 105,000 BTU hr. It features a 125 psi pressure setting and a 210F temperature relief point, ensuring consistent performance in demanding mechanical rooms. The thermo bonded