Lochinvar & A.O. Smith 100161835 Valve 320788-703 or 5-2 scheduling with a

or 5-2 scheduling with a 2-pipe fan coil changeover input for seasonal efficiency

making it a direct drop-in replacement for standard Honeywell Fire and Smoke Actuator retrofits

Its robust internal diaphragm is built to withstand high-cycle operations

Durable Construction: Built with Class B insulation and ball bearings for high-temperature

When selecting a replacement relief valve

Lochinvar & A.O. Smith 100161835 Valve 320788-703 or 5-2 scheduling with aThe Lochinvar & A. O. Smith 100161835 Air Metering Valve is a critical component for maintaining the precise combustion air to fuel ratio in high efficiency condensing boilers and water heaters. Engineered for exact modulation, this venturi air valve ensures the burner receives the correct airflow required for stable ignition and optimal thermal efficiency. It is a direct OEM replacement part designed to interface seamlessly with the blower assembly