Precision Timing: Microprocessor control delivers a consistent 4-second Trial for Ignition (TFI) and 20-second heat-up period

Reliable Calibration: Works in conjunction with the starting point adjustment screw (2-12 psig) for custom pneumatic valve setups

Ensure your transformer has sufficient VA capacity to handle both the module and the gas valve load

Durable Ball Bearing Design: Reduces friction and heat buildup

and mineral acids

Lochinvar & A.O. Smith 100111332 Air Screen 318518-761 Precision Timing: Microprocessor control deliversThe Lochinvar & A. O. Smith 100111332 Air Screen is a critical OEM replacement part engineered for high efficiency commercial water heaters and gas fired boilers. As a veteran technician, you know that maintaining the surgical balance of the combustion air to fuel ratio is non negotiable for system longevity. This precision manufactured air screen acts as the primary barrier for the combustion chamber, preventing large particulates and airborne debris