Lennox 12U98 Relay 321142-301 and Daikin evaporator coils

and Daikin evaporator coils

While a temporary jumper may be used by a qualified technician during furnace troubleshooting to isolate the fault

Which boiler series is this burner compatible with

Professional installation is required to verify manifold pressure and ensure proper flame impingement against the internal baffles

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 and Daikin evaporator coilsThe 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