Lochinvar & A.O. Smith 100166108 Pressure Switch 318172-701 ensuring a consistent blue cone

ensuring a consistent blue cone flame and optimal heat transfer

Direct connection to a standard 4-wire thermostat may require an interface relay depending on the control circuit

Optimized Flow: Features a 3/8" orifice within a 1/2" NPT housing to balance high Cv requirements with compact installation

Key Benefits for Technicians Dead-End Lock-Up: Ensures zero pressure leakage to downstream components during the off-cycle

Lochinvar & A.O. Smith 100166108 Pressure Switch 318172-701 ensuring a consistent blue coneProfessionals in the field know that the Lochinvar & A. O. Smith 100166108 Pressure Switch is a critical safety component designed for precise draft proving in high efficiency condensing boilers and commercial water heaters. This OEM replacement part is engineered to monitor the negative pressure of the inducer motor, ensuring the venting system is clear of obstructions before allowing the ignition sequence to proceed. When a blocked flue or failed