Lochinvar L100208172 High Limit Control

Product Description

The LOCHINVAR L100208172 is a high limit control device used in hydronic heating and water heating systems to prevent unsafe operating temperatures. When water or fluid temperature exceeds the set threshold, the high limit control interrupts the burner circuit or heating element, shutting down the heat source before damage or hazard can occur. This component is a critical safety control, typically installed by licensed plumbers, HVAC technicians, or hydronic heating specialists working on boilers and water heaters. It is a direct OEM-sourced part from Lochinvar.

High limit controls of this type are found in residential and light commercial hot water boilers, indirect water heaters, and combination heating systems. The L100208172 is suited for applications where maintaining a safe upper temperature boundary is required by code or equipment design. It mounts within the appliance control circuit and operates automatically without manual intervention during normal system function.

Key Features

• Interrupts burner or heating circuit when fluid temperature exceeds the safe operating limit
• OEM part sourced directly from Lochinvar for reliable fit and function
• Designed for automatic reset or manual reset operation typical of high limit safety controls
• Compatible with hydronic boiler and water heater control circuits
• Critical safety component for code-compliant installations

Compatibility

Designed as an OEM-style replacement high limit control for Lochinvar boilers and water heating equipment. No specific model compatibility data was provided in the product listing.

Installation Notes

Installation should be performed by a licensed HVAC technician, plumber, or hydronic heating specialist. Before servicing, shut down the appliance, isolate electrical power, and allow the system to cool to a safe handling temperature. Consult the appliance service manual for correct mounting location and wiring terminal connections. Installation must comply with applicable local codes and the manufacturer's service documentation.

Technical Specifications

• Part Type: High Limit Control

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100208172