Lochinvar & A.O. Smith 100166248 Pressure Switch 320788-703 maintaining elasticity and sealing force

maintaining elasticity and sealing force up to 750°F

ensuring a secure and vibration-resistant connection to the high side of the system

When replacing a failed unit

Superior Moisture Removal: Advanced desiccant mix optimized for acid neutralization and deep-drying of the refrigerant circuit

The adjustable tip must be positioned so the pilot flame envelops the top 3/8 to 1/2 inch of the sensing element

Lochinvar & A.O. Smith 100166248 Pressure Switch 320788-703 maintaining elasticity and sealing forceThe Lochinvar & A. O. Smith 100166248 Pressure Switch is a critical safety component designed for precise combustion air proving in high efficiency commercial boilers and water heaters. Rated at . 95" WC (Water Column), this SPDT (Single Pole Double Throw) switch monitors differential pressure to ensure the blower is moving sufficient air before the ignition sequence begins. This authentic OEM replacement part is the current manufacturer specified