Resideo R8229A1021 Relay 322056-301 30-second pre-purge for improved combustion

30-second pre-purge for improved combustion safety

1/4" NPT gauge taps are conveniently located on both sides of the valve body

Designed for reliability in high-heat environments

this versatile kit is utilized in several Lennox heat pump series

Resideo R8229A1021 Relay 322056-301 30-second pre-purge for improved combustionThe Resideo R8229A1021 Relay is a professional grade electric heat relay engineered for heavy duty load control in residential and commercial HVACR systems. As a normally closed (NC) DPST (Double Pole, Single Throw) component, this relay is designed to allow continuous load operation, providing a failsafe mechanism that maintains power to heating elements even if the control circuit or wiring fails. This makes it a critical component for electric