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Whether you are retrofitting existing HVAC temperature sensors or commissioning a new BAS (Building Automation System)
this component ensures stable point-to-point wiring for HVAC system diagnostics and power distribution
it features a modular design with two independent check valves and two shutoff valves
providing the reliability required for critical cooling cycles
it is provided as a complete service kit including the sightglass assembly and required sealing components to ensure a vacuum-tight installation
York S1-031-03498-001 Control Board 328140-751 Whether you are retrofitting existingThe York S1 031 03498 001 Demand Defrost Control Board is a critical OEM replacement part engineered for high efficiency 14 SEER heat pump systems. As a veteran grade HVAC control board, it is the direct factory successor to the S1 031 03877 000, ensuring seamless integration with York TH4 series units, including models TH4B3622SA, TH4B4822SA, and TH4B6022SA. Unlike standard time temperature defrost boards, this demand defrost module utilizes advanced
