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Built with a durable ABS housing and rated for operating temperatures between 40
ensuring you have the reach required for varied field configurations
and mixed air control
technicians should verify specific pneumatic or electronic sensor clearance before completing the final fastener attachment
Lochinvar & A.O. Smith 100288429 Switch R-134A Built with a durable ABSThe Lochinvar & A. O. Smith 100288429 Switch is a critical safety component designed for precise air pressure sensing in high efficiency heating systems. This OEM replacement part is factory calibrated to a 3. 90" water column (WC) set point, serving as a primary air proving switch to ensure the blower motor is moving sufficient combustion air before the ignition sequence begins. Engineered for compatibility with specific Lochinvar boilers and A. O.
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