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This SPST pressure switch is factory-calibrated to a
using this genuine Carrier HVAC part ensures electrical compatibility and eliminates the mounting alignment issues often found with universal alternatives
Using it with R410A will result in improper metering and potential system damage
acting as both the primary heat source for ignition and a flame sensor to verify combustion stability
the S352AA-2 supports both wall and DIN rail mount configurations
Lochinvar & A.O. Smith 100110273 Gas Valve 328140-751 This SPST pressure switch isThe Lochinvar & A. O. Smith 100110273 Gas Valve is a critical OEM replacement component designed for high recovery residential water heaters. This 120V natural gas valve features a 4" WC pressure rating and a 1 2" NPT inlet, specifically engineered for the A. O. Smith GPDH, GPDT40, and GPDT50 series. As a precision calibrated gas control valve, it utilizes a 1. 45" shank to ensure proper seating and thermal sensing within the tank. For technicians