A trip at this threshold typically indicates restricted flue venting

Check your valve orientation before installation

and Zettler AZ290-1C-240A

For a 7/8" diameter suction line

Common Questions How do I calibrate the set point on the NS2-0000-00

York 331-02507-601 Board Kit THPU32HP7Y A trip at this thresholdThe York 331 02507 601 Board Kit is the essential Variable Speed Drive (VSD) logic control solution for YCAV series air cooled screw chillers. Engineered specifically for 2 compressor configurations, this kit is mandated by the manufacturer whenever a logic board replacement is performed. Unlike standalone boards, this comprehensive OEM replacement kit includes the required EPROMs and PWM generator (components 59 and 171) to ensure full communication