Lochinvar L100208493 Pump Relay Board

Product Description

The LOCHINVAR L100208493 is a pump relay board designed to control pump operation within hydronic heating and hot water systems. This board serves as the electrical interface between the system controller and the circulation pump, switching pump circuits on and off in response to control signals. It is typically installed by licensed HVAC technicians or plumbers servicing boiler-based systems. As a direct replacement component, it restores proper pump sequencing and system circulation when the original board has failed or become damaged.

The L100208493 pump relay board is suited for residential and light commercial hydronic heating applications. It is installed within the boiler or mechanical unit housing where pump control logic is required. Technicians working on LOCHINVAR boilers and water heaters will encounter this board as part of the system control assembly. Specific compatible model numbers were not provided in the available product data.

Key Features

• Controls circulation pump operation within hydronic heating systems
• Functions as the switching interface between the system controller and pump circuit
• OEM-style replacement board for restoring factory pump control performance
• Designed for installation within LOCHINVAR boiler and water heating equipment

Compatibility

Designed as an OEM-style replacement pump relay board for LOCHINVAR boiler and hydronic water heating systems. Verify the part number L100208493 against the unit nameplate or service documentation before installation.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified plumber familiar with hydronic system controls. Before servicing, shut off electrical power to the unit at the disconnect or breaker and allow the system to depressurize and cool as needed. Handle the relay board carefully to avoid damage to contact points or solder joints. Follow all applicable local codes and the manufacturer service documentation during replacement.

Technical Specifications

• Product Type: Pump Relay Board

Standard Information

• Brand: LOCHINVAR
• Manufacturer Part Number: L100208493