Weil McLain 383-500-665 ControlKit Upgrade Series 1 & 2

Description

Weil McLain ControlKit Upgrade — Series 1 & 2

The Weil McLain 383-500-665 ControlKit Upgrade is a factory-engineered solution designed to modernize and restore reliable operation to Weil McLain Series 1 and Series 2 boilers. This all-in-one upgrade kit simplifies the process of bringing aging boiler control systems up to current performance standards, reducing downtime and extending equipment service life.

Key Features

• Designed specifically for Weil McLain Series 1 and Series 2 boiler compatibility
• Factory-engineered control upgrade for consistent, reliable performance
• Simplifies retrofitting older boiler control systems with modern components
• Helps restore proper boiler operation and efficiency
• Genuine Weil McLain OEM replacement kit — ensures correct fit and function
• Reduces service complexity with a complete, matched control package

Why Upgrade?

Aging boiler controls can lead to inefficient operation, nuisance lockouts, and increased service calls. The Weil McLain 383-500-665 ControlKit provides a straightforward upgrade path, replacing worn or obsolete controls with components engineered to Weil McLain’s exacting standards. The result is improved system reliability, better energy management, and peace of mind for building owners and service technicians alike.

Application

• Compatible with Weil McLain Series 1 boilers
• Compatible with Weil McLain Series 2 boilers
• Ideal for residential and light commercial hydronic heating systems
• Suitable for use by qualified HVAC/R and hydronic heating professionals

Product Details

• Brand: Weil McLain
• Part Number: 383-500-665
• Product Type: ControlKit Upgrade Kit