Optiview Control Center - York YK Manual

OptiView™ Control Center
JOHNSON CONTROLS
NOTE: Refer to the OptiView™ Control Center Operator's Manual for a complete descrip-
tion of features and functionality.
The YORK OptiView™ Control Center is a factory mounted, wired, and tested micropro-
®
cessor-based control system for centrifugal chillers. For the YK, the OptiView™ Control
Center controls the leaving chilled liquid temperature and it limits the motor current via
control of the Variable Geometry Diffuser (VGD) and Variable Speed Drive (VSD).
The panel comes configured with a full screen LCD graphic display mounted in the middle
of a keypad interface with soft keys. The soft keys are redefined with one keystroke,
based on the screen displayed at the time. The graphic display presents several operat-
ing parameters at once. In addition, the operator can view a graphical representation of
the historical operation of the chiller as well as the present operation. For the novice user,
the locations of various chiller parameters are clearly and intuitively marked. Instructions
for specific operations are provided on many of the screens. To prevent unauthorized
changes of set points and operating conditions, security access is provided with three dif-
ferent levels of access and passwords.
The graphic display also allows information to be represented in both English (tempera-
tures in °F and pressures in psig) and metric (temperatures in °C and pressures in kPa)
mode. The advantages are most apparent, however, in the ability to display many lan-
guages.
FORM 160.75-EG1 (519)
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