replacing the Nordyne 669566R restores the refrigeration cycle to factory specifications

Whether you are managing head pressure or setting up safety limits

Heavy-duty construction rated for high pressure steam boiler environments up to 150 psi

67-4346-1 is the cross of 66020

Watts 0121589 Valve Refrigerant replacing the Nordyne 669566R restoresThe Watts 0121589 is a high capacity 1" T&P relief valve designed specifically for heavy duty commercial hot water supply tanks and heaters. Part of the Watts LFN240 series, this model is the lead free iteration of the N240X 9 150, providing automatic temperature and pressure protection for systems with high BTU inputs. It features a 1 inch NPT female inlet and outlet, with a factory pressure relief setting of 150 psi and a temperature relief point of