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Engineered with a 10-second Trial for Ignition (TFI) and an integrated 120V gas valve relay
including digital thermostats
Integrated Thermal Time Relay: Includes a built-in 120-second delay to prevent nuisance tripping during transient pressure fluctuations or cold starts
As a veteran-preferred OEM replacement gas valve
Lennox 15D55 Control Board 326058-756 Engineered with a 10-second TrialThe Lennox 15D55 Defrost Control Board is a critical OEM replacement component engineered to manage the complex defrost cycles of Lennox heat pump systems. As a veteran technician knows, maintaining the integrity of the outdoor coil is paramount; this board utilizes advanced demand defrost logic to monitor coil and ambient sensors, preventing efficiency robbing frost buildup. With high temp ratings up to 105C and a robust 47F capacitance, the Lennox
