Lochinvar 100208376 Low Air Pressure Switch WC - 0.12

The Lochinvar 100208376 is a low air pressure switch designed for use in Lochinvar residential and commercial gas-fired boilers and water heaters. This critical safety component monitors air pressure within the combustion system to ensure proper venting and safe operation.

Key Features:

• Pressure rating: 0.12 inches water column (WC)
• Genuine OEM Lochinvar replacement part
• Functions as a safety interlock to prevent burner operation under unsafe conditions
• Monitors combustion air pressure to ensure adequate draft
• Compatible with various Lochinvar boiler and water heater models

Air pressure switches are essential safety devices that prevent the appliance from operating when proper venting conditions are not present. This switch closes its electrical contacts when the specified pressure differential is achieved, allowing the control system to proceed with ignition. If adequate air pressure is not detected, the switch remains open and prevents burner operation, protecting against potentially dangerous backdraft or incomplete combustion conditions.

Always verify compatibility with your specific Lochinvar model before ordering. Consult your appliance's parts diagram or contact a qualified service technician for proper installation and adjustment.