The SPDT contacts should be wired to the controller's safety interlock loop

Most technicians recommend inspecting the burner flange gasket during replacement

Reusing a gasket risks seal failure under operational pressure

How do I troubleshoot a gas valve that won't open

Which boiler models is the R2080802 kit compatible with

Hartland Controls TRAN-75VA Transformer 321042-401 The SPDT contacts should beThe Hartland Controls TRAN 75VA Transformer is a heavy duty, 75VA step down solution engineered for multi tap versatility in commercial HVACR and industrial control circuits. Specifically designed to handle primary input ranges of 120 208 240 480V AC, this multi tap 24V transformer delivers a consistent 24V secondary output, making it a standard replacement for high demand applications including water pumps, food service equipment, and pool spa