Lochinvar & A.O. Smith 100108882 Pressure Switch L99H008 This direct-drive motor is pre-programmed

This direct-drive motor is pre-programmed to interface seamlessly with your specific air handler control board

ensuring the burner cuts out exactly when needed to maintain system integrity

Day & Night

Its lack of a pressure tap simplifies installation by reducing potential leak paths while maintaining high-integrity gas flow control in demanding environments

a liquid propane (LP) orifice is included in the package

Lochinvar & A.O. Smith 100108882 Pressure Switch L99H008 This direct-drive motor is pre-programmedThe Lochinvar 100108882 (also indexed under A. O. Smith 100108882) is a critical safety differential air pressure switch designed for commercial boilers and water heaters. Calibrated for a fixed setpoint of 1. 10" W. C., this SPNO (Single Pole Normally Open) switch ensures the combustion blower is generating sufficient airflow before allowing the ignition sequence to proceed. As an OEM replacement part, it is engineered to maintain high limit accuracy