Lennox 12U98 Relay 321142-301 this manifold gas valve assembly

this manifold gas valve assembly is often the required fix for faulty internal sensors or millivolt signal failures

ensuring sensing accuracy over time

The 50-80°F temperature range is managed via a vertical-mount housing that includes an integrated thermometer and functional range stops

Which boiler series is this burner compatible with

It is recommended to limit total resistance of field wiring to 3 ohms or use heavier gauge wire to maintain sensor accuracy

Lennox 12U98 Relay 321142-301 this manifold gas valve assemblyThe Lennox 12U98 Relay is a professional grade 24Vac electronic time delay relay engineered specifically for critical timing sequences in residential and commercial HVACR systems. This genuine OEM replacement part (also identified as 103047 02) provides an essential 30 minute delay on break (DOB) function. This fixed interval ensures that the system components continue to operate for a set period after the control signal is removed, which is vital for