Lochinvar & A.O. Smith 100208389 Pressure Switch 322056-301 Optimized Combustion: The factory-set #27

Optimized Combustion: The factory-set #27 orifice provides precise fuel metering to ensure clean ignition and consistent thermal transfer

part number 1065751 is a cross-functional component used across the International Comfort Products family

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The Carrier 00501143 is the industry standard for 5-inch diameter motor housings where a 1-inch thick isolator is required

Lochinvar & A.O. Smith 100208389 Pressure Switch 322056-301 Optimized Combustion: The factory-set #27The Lochinvar & A. O. Smith 100208389 is a critical safety component designed specifically for monitoring natural gas pressure in high performance heating systems. As a genuine OEM replacement pressure switch calibrated at 4. 1" WC, it serves as the primary safeguard to prevent ignition or sustained operation during low pressure scenarios. This part is a direct replacement for the obsolete PRS2004 and PRS2004K, ensuring seamless integration into