Lochinvar & A.O. Smith 100109973 Switch 321894-706 this 24" thermocouple provides the

this 24" thermocouple provides the precise millivoltage needed to maintain the safety circuit and prevent nuisance pilot outages

Technical Specifications and Benefits Voltage Compatibility: Optimized for standard 24V control circuits

this OEM regulator spring allows technicians to dial in set-points for boilers

undersizing will cause the motor to overheat

or excessive moisture in the combustion chamber leading to electrical grounding

Lochinvar & A.O. Smith 100109973 Switch 321894-706 this 24" thermocouple provides theThe Lochinvar & A. O. Smith 100109973 Blocked Inlet Switch is a critical safety component designed for high efficiency condensing boilers and water heaters. As a normally closed air pressure switch, its primary function is to monitor the intake system for airflow restrictions. If the intake air connection screen becomes clogged or the vent piping is obstructed, the switch detects a fall in pressure and opens the electrical circuit, instantly shutting