YK CENTRIFUGAL LIQUID CHILLER OptiView ... - Johnson Controls

OptiView Control Panel
Display
Soft keys for Control and Navigation
The YORK OptiView Control Panel (Graphic Control
Centre) is a microprocessor based control system for
YK centrifugal chillers. It controls the leaving chilled
liquid temperature via pre-rotation vane (PRV) controls
and has the ability to limit motor current via control of the
PRV. It is compatible with electro-mechanical starter,
optional YORK Solid State Starter (SSS) and optional
Variable Speed Drive (VSD) applications.
The panel has a full screen LCD graphic display with a
keypad interface. The graphic display allows the
presentation of several operating parameters at once. In
addition, the operator may view a graphical
representation of the historical operation of the unit as
well as the present operation.
For ease of use the locations of displayed parameters
are clearly and intuitively marked and instructions for
specific operations are provided on many of the
screens. Information can be displayed in both metric (SI
- temperatures in °C and pressures in kPa) or English
(Imperial - temperatures in °F and pressures in PSIG)
units in a number of languages.
The control panel also displays the unit operation using
status and warning messages and records the cause of
any shutdowns (Safety, Cycling or Normal). This
information is stored in battery backed for viewing.
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4
7
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0
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9
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160-54-OI-GB0 1
Numeric
Keypad
Cursor Keys/
Cancel and
Enter
Master
Switch
Information on the display falls into three distinct groups:
Display Only, Programmable, and Navigation. The
Programmable values and Navigation commands are
subject to access level control.
Display Only information is read-only parameters
about unit operation. This information may be
represented by a numerical value, a text string, or an
LED image. For numerical values, if the monitored
parameter is above the normal operating range, the high
limit value will be displayed along with the '>' symbol; if it
is below the normal operating range, the low limit value
will be displayed along with the '