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Layered blues for a quiet Nordic mood—built for long scrolls and clear product focus beside the sticky cabin window.
Wood-toned frames and chip trails keep the buy box grounded—harbor calm meeting cabin warmth without clutter.
the E3SA ensures precision monitoring and seamless integration with existing building automation systems
While the 1" NPSM thread is a standard size
ensure the fluid temperature does not exceed the seal's rated limits
9 to 36 degree F Adjustable Differential
The VAC24 is the modern technical equivalent designed to restore full functionality to these systems
Lochinvar & A.O. Smith 100233301 Switch 326058-755 the E3SA ensures precision monitoringThe Lochinvar & A. O. Smith 100233301 Switch is a critical fixed setting Normally Open (N. O.) air pressure switch designed for negative pressure sensing applications in high efficiency venting systems. Calibrated specifically to 1. 25" WC, this OEM component serves as a primary safety proving switch, ensuring the combustion blower is generating sufficient draft before the ignition sequence initiates. For veteran technicians, this 100233301 pressure