Lochinvar & A.O. Smith 100166108 Pressure Switch 318172-701 Key Benefits for Technicians Dead-End

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

and operating ranges

OEM furnace safety component factory-calibrated for induction monitoring in residential and light commercial heating systems

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

Lochinvar & A.O. Smith 100166108 Pressure Switch 318172-701 Key Benefits for Technicians Dead-EndProfessionals 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