York YK-EP Operation And Maintenance Manual page 267

Note:
1. On new production chillers after June 2009, the Thermal type flow sensors are connected
to Microboard J14 as shown above. Program Jumpers JP10 through JP12 must be
positioned on pins 2-3 and software version C.OPT.01.21.307 (and later) is required. On
new production chillers prior to June 2009, the Thermal type flow sensors are connected
to Microboard J7 (Refer to Figure 92).
YK-EP Style B Centrifugal Chiller 267