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Simple Connectivity: Features designated Supply (S) and Output (O) air connections with barbed ports for secure 5/32" tubing attachment
High Capacity: Supports up to 250
The 1/4" flare external equalizer compensates for pressure drops across the evaporator coil
Remote Flame Sensing: Offers installation flexibility and accurate flame detection
Durable Construction: High-grade materials designed to withstand continuous thermal cycling without warping or degradation
Lochinvar & A.O. Smith 100327314 Pressure Switch 30067439-890 Simple Connectivity: Features designated SupplyThe Lochinvar & A. O. Smith 100327314 Pressure Switch is a critical safety component designed for high performance HVAC system diagnostics and forced draft combustion control. As a technical professional, you know that maintaining precise pressure differential is non negotiable for safe burner operation. The 100327314 serves as the direct replacement part for legacy models 100166196 and PRS2705. This air pressure switch is engineered to sense the