Engineered to meet precise OEM specifications

and condensers without clogging manifold gauges or fouling critical components like TXVs

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

This solid-state ignition control module provides precise timing and sequence control to ensure safe burner light-off

Watts 0163746 Valve 322027-701 Engineered to meet precise OEMThe 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