York YST - Key Operational Screens

JOHNSON CONTROLS
21
SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
FORM 160.67-O1
ISSUE DATE: 4/1/2015
2
HOME SCREEN
LD09257
FIGURE 6 - HOME SCREEN
NOTE: OptiView
™
Control Center Screens shown may NOT represent the exact screens according to the software version utilized.
OVERVIEW
When the chiller system is powered on, the above de-
fault display appears. The primary values which must
be monitored and controlled are shown on this screen.
The Home Screen display depicts a visual represen-
tation of the chiller itself. The chilled and condens-
er liquid flow lines are animated whenever adequate
flow has been established to close the respective flow
switch. The turbine steam inlet flow line is animated at
speeds above 500 RPM.
DISPLAY ONLY
Chilled Liquid Temperature - Leaving
Displays the temperature of the liquid as it leaves the
evaporator.
Chilled Liquid Temperature - Return
Displays the temperature of the liquid enters the evapo-
rator.
Condenser Liquid Temperature - Leaving
Displays the temperature of the liquid as it leaves the
condenser.
Condenser Liquid Temperature - Return
Displays the temperature of the liquid as it enters the
condenser.
Operating Hours
Displays the cummulative operating hours of the chill-
er.
Turbine Speed
The turbine speed is sensed by two magnetic pickups
that monitor a toothed gear installed on the turbine
shaft. The pickup signals are converted to 4-20 mA
signals by frequency-to-analog converters in the
Turbine Box and connected to the Analog I/O Board in
the Control Center. This data field displays the highest
of the two speed input signals.
Steam Flow
Displays the rate of steam flowing through the turbine.
This text and data field only appears if FSE1-Steam
Flow Sensor Enable is set for Enabled on Configura-
tion Screen 2.
Chilled Liquid Flow
Displays the rate of chilled liquid flowing through the
evaporator. This text and data field only appears if
FSE1- Evaporator Flow Sensor Enable is set for En-
abled on Configuration Screen 2.
Condenser Liquid Flow
Displays the rate of cooling liquid flowing through
the condenser. This text and data field only appears
if FSE3-Condenser Flow Sensor Enable is set for En-
abled on Configuration Screen 2.