York YK Style H Operation Manual page 14

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
The chiller operating program resides in the OptiV-
iew Control Center Microboard. The Control Center is
equipped with the following Microboard:
• 031-03630-001 – Shipped in new production
chillers after July 2015. This is an upgraded mi-
croboard operates with the Medium Voltage Solid
State Starter, Medium Voltage Variable Speed
Drive and those Variable Speed Drives and Style
B Solid State Starters that serially communicate
with the microboard using Modbus Protocol.
14
Software versions (Y.OPT.01.xx.yzz are alpha-numeric
codes that represent the application language package
and revision levels per be-low. Each time the controls
portion or language section is revised, the respective
revision level increments.
• Y – Commercial chiller
• OPT – Used on Microboard 031-02430-000
• 01 – YK chiller
• xx – controls revision level (00, 01, etc)
• y – language package (0 equals English only, 1
equals NEMA, 2 equals CE, 3 equals NEMA/CE )
• zz – language package revision level (00, 01, etc)
FORM 160.76-O2
issue date: 6/15/2015
JOHNsON CONtROLs