Fail-Safe Design: Integrated spring return mechanism ensures the valve returns to its original position during power loss

Broad Application: Engineered for use in Lennox G40

Veteran techs understand that a clean liquid line is the first defense against system failure

Can I use the TD121 with a sensor from a different temperature range

York 031-02429-001 EPROM 30067439-890 Fail-Safe Design: Integrated spring returnThe York 031 02429 001 EPROM is a critical integrated circuit component specifically engineered for the York OptiView Control Center. As an Erasable Programmable Read Only Memory chip, it houses the core BIOS firmware required for high level chiller logic and system initialization. This specific 031 02429 001 revision is optimized for use with the 031 02430 000 microboard and 031 02430 001 microboard found in Model YK Centrifugal Liquid Chillers. It