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INTRODUCTION
The YORK OptiView™ Control Center is a micropro-
cessor based control system for YORK chillers.
The panel comes configured with a full screen LCD
Graphic Display mounted in the middle of 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 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.
The graphic display also allows information to be repre-
sented in both English (temperatures in °F and pressures
in PSIG) and Metric (temperatures in °C and pressures
in kPa) mode. The advantages are most apparent in the
ability to display English, German, Italian, Spanish, and
Portuguese languages.
The Control Center continually monitors the system op-
eration and records the cause of any shutdowns (Safety,
Cycling or Normal). This information is recorded in
memory and is preserved even through a power failure
condition. The user may recall it for viewing at any time
by accessing the History Screen. During operation, the
user is continually advised of the operating conditions
by various status and warning messages. In addition, it
may be configured to notify the user of certain conditions
via alarms. A complete listing of shutdown, status, and
warning messages is attached in the Display Messages
section of this book.
There are certain screens, displayed values, program-
mable Setpoints and manual control shown in this book
that are for Service Technician use only. They are only
displayed when logged in at SERVICE access level
or higher.
These parameters affect chiller opera-
tion and should NEVER be modified by
anyone other than a qualified Service
Technician.
JOHNSON CONTROLS
SECTION 2
OPTIVIEW CONTROL CENTER
The OptiView
of remote control and communications. By providing a
common networking protocol through E-Link Gateway,
YORK Chillers not only work well individually, but
also as a team.
The E-Link Gateway provides communications for
YORK chillers with Building Automation Systems
(BAS). The E-link is a circuit board that can be installed
directly in the OptiView Panel or can be supplied already
mounted in a line voltage capable enclosure.
This new protocol allows increased remote control of the
chiller, as well as 24-hour performance monitoring via
a remote site. In addition, compatibility is maintained
with the present network of E-Link communications.
The chiller also maintains the standard digital remote
capabilities as well. Both of these remote control ca-
pabilities allow for the standard Energy Management
System (EMS) interface:
The chiller operating program resides in the OptiView
control center Microboard. The control center could be
equipped with the following Microboard:
control center expands the capabilities
TM
1. Remote Start
2. Remote Stop
3. Remote Leaving Chilled Liquid Temperature
Setpoint adjustment (0-10VDC) or Pulse Width
Modulation
4. Remote Load Limit Setpoint adjustment
(0-10VDC) or Pulse Width Modulation
5. Remote "Ready to Start" Contacts
6. Safety Shutdown Contacts
7. Cycling Shutdown Contacts
8. See 155.21-W2 for additional connection details
•
031-02430-005 – The program resides in non-
removable onboard memory. The software version
is C.OPT.15.xx.yzz, and is viewable on the DIAG-
NOSTICS Screen in SERVICE access level. The
program can be upgraded by downloading a new
program from a Program Card. Program Cards are
shirt-pocket-size portable memory storage devices
available from YORK.
FORM 155.21-O1 (615)
2
11
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