Lochinvar & A.O. Smith 100327314 Pressure Switch 30067439-890 The 1/4" flare external equalizer

The 1/4" flare external equalizer compensates for pressure drops across the evaporator coil

High Capacity: Supports up to 250

Secure Termination: Features internal screw-type terminals and a PG 11 strain relief nut to prevent cable pull-out

then those pairs in parallel) to maintain the required 10k ohm resistance for the thermostat logic

Simple Connectivity: Features designated Supply (S) and Output (O) air connections with barbed ports for secure 5/32" tubing attachment

Lochinvar & A.O. Smith 100327314 Pressure Switch 30067439-890 The 1/4" flare external equalizerThe 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