Compressor Screen; Hot Gas Bypass Screen - York YK Manual

FORM 160.75-EG1 (519)
OptiView™ Control Center (Cont'd)

COMPRESSOR SCREEN

This screen displays a cutaway view of the chiller compressor, revealing the impeller. The
screen shows all the conditions that are associated with the compressor. Animation of the
compressor impeller indicates whether the chiller is presently in a RUN condition. This
screen also serves as a gateway to subscreens for the Variable Geometry Diffuser (VGD)
and the Power Panel.

HOT GAS BYPASS SCREEN

This screen displays a cutaway view of the Hot Gas Bypass Valve. The setpoints relating
to the Hot Gas Bypass Control are maintained on this screen. Related Hot Gas control pa-
rameters are displayed for reference. The Hot Gas Valve can be manually controlled from
this screen. The relative valve position is displayed through animation. The parameters dis-
played on this screen vary according to the software version and the selection made for the
Motor Communications Protocol Setpoint when equipped with Variable Speed Drive (VSD)
or Medium Voltage Variable Speed Drive (MVVSD).
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LD26781
LD27304
JOHNSON CONTROLS