and PAE gas heaters built as far back as 1986

The 20-gauge galvanized steel cabinet features toggle lock assembly and factory-punched drill access holes

Technicians should follow the specific furnace installation manual

What components typically mount to this assembly board

Direct OEM Compatibility: Ensures the internal logic matches original factory specifications for 100% reliable HVAC part performance

Watts 0163746 Valve 322027-701 and PAE gas heaters builtThe Watts 0163746 (Model 1 LL40XL Z2) is a high capacity temperature and pressure relief valve designed specifically for commercial hot water supply tanks and large boilers. Featuring a 1 inch NPT male inlet and 1 inch NPT female outlet, this bronze body valve is engineered for 500,000 BTU hr systems where safety and high discharge capacity are mandatory. The non mechanical seat to disc alignment ensures reliable operation at a pressure relief setting