this model is the specific York pressure control compatibility solution for the legacy S1-025-44139-000 part number

When a gas furnace won't light

000V at 23mA with a 150VA rating

Mounting with the connections facing up is not recommended

Common indicators include the outdoor coil completely icing up in heating mode

Watts 0383484 Valve THPU32HP7Y this model is the specificThe Watts 0383484 (Series 740) is a high capacity boiler pressure relief valve engineered specifically for commercial and industrial hot water space heating applications. Featuring a 1 1 4 inch NPT female inlet and an expanded 1 1 2 inch NPT female outlet, this ASME Section IV certified valve is designed to handle a massive discharge capacity of 4,285,000 BTU hr at a 75 PSI set pressure. Its iron body construction and stainless steel spring ensure