Lochinvar & A.O. Smith 100109934 Switch Refrigerant Engineered for general service applications

Engineered for general service applications

Status Diagnostics: Integrated dual-color LED provides immediate visual feedback for normal operation

this kit ensures a uniform flame pattern across all five cells

Engineered for professional-grade HVAC circuit board troubleshooting

By diverting excess voltage away from the UVC ballast and system logic boards

Lochinvar & A.O. Smith 100109934 Switch Refrigerant Engineered for general service applicationsThe Lochinvar & A. O. Smith 100109934 Switch is a critical safety component engineered for high efficiency condensing boilers and commercial water heaters. Functioning as a blocked outlet switch, this normally closed (NC) pressure sensor is calibrated to 2. 6" WC to monitor exhaust backpressure. If the venting system becomes obstructed by debris, ice, or mechanical failure, the 100109934 triggers an immediate system lockout to prevent the hazardous