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This microprocessor-based control board serves as the direct replacement for discontinued part number 42001-0052S
Common Installation & Technical Questions Can the HFES 1/2 HC be used on a system with an internal distributor
essential for maintaining indoor air quality and system efficiency in demanding environments
This unit is compatible with any gas or liquid that is non-corrosive to 17-4 PH and 300-series stainless steel
Always verify the part number against your unit's data plate or illustrated parts list to ensure a correct fit
Weil McLain 382-200-451 Kit THPU32HP7Y This microprocessor-based control board servesThe Weil McLain 382 200 451 Conversion Kit is a critical field upgrade designed to transition legacy boiler systems from Hot Surface Ignition (HSI) configurations to a more reliable Spark Ignition (SI) Gold Control system. This kit allows for the replacement of aging Honeywell, Fenwal, and White Rodgers HSI modules, which often suffer from premature igniter failure and inconsistent flame rectification. By upgrading to the Gold Control SI, contractors
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