Start/Stop Control - York YR Manual

Optiview Control Center
SECTION 2 - OPTIVIEW™ CONTROL CENTER
of ISN communications. The chiller also maintains the
standard digital remote capabilities as well. Both of
these remote control capabilities allow for the standard
Energy Management System (EMS) interface:
1. Remote Start.
2. Remote Stop.
3. Remote Leaving Chilled Liquid Temperature
setpoint adjustment (0 to 20mA or 4 to 20mA, 0
to 10VDC or 2 to 10VDC) or Pulse Width Modu-
lation.
4. Remote Current Limit setpoint adjustment (0 to
20mA or 4 to 20mA, 0 to 10VDC or 2 to 10VDC)
or Pulse Width Modulation.
5. Remote "Ready to Start" Contacts.
6. Safety Shutdown Contacts.
7. Cycling Shutdown Contacts.
The chiller operating program resides in the
OptiView™ control center Microboard. The control
center could be equipped with either of the following
Microboards:
• 031-01730-000 – shipped in new production
chillers until May 2004. The program resides in
a replaceable Flash Memory Card. The software
version (C.MLM.05.xx.yzz) is printed on label
adhered to card. Program can be upgraded by re-
placing the card.
• 031-02430-000 – shipped in new production
chillers after May 2004. The program resides in
non-removable onboard memory. The software
version is C.OPT.05.xx.yzz, and is viewable on
the DIAGNOSTICS screen in SERVICE access
level. The program can be upgraded by download-
ing a new program from a Program Card. Program
Cards are shirt-pocket-size portable memory stor-
age devices available from YORK.
Earlier vintage chillers could be equipped with a later
Microboard due to service replacement.
Software versions (C.MLM.05.xx.yzz or C.OPT.05.
xx.yzz) are alpha-numeric codes that represent the ap-
plication, language package and revision levels per be-
low. Each time the controls portion or language section
is revised, the respective revision level increments.
• C – Commercial chiller
• MLM – Used on Microboard 031-01730-000
• OPT - Used on Microboard 031-02430-000
18
• 05 – YR chiller
• xx - Controls revision level (00, 01, etc)
• y – Language package (0 equals English only, 1
equals NEMA, 2 equals CE, 3 equals NEMA/CE)
• zz – Language package revision level (00, 01, etc)
Throughout this book, reference is made to functions
and features that are only available in certain Flash
Memory Card revision levels (C.MLM.05.xx.xxx). To
cross reference C.MLM software to C.OPT software,
refer to the controls revision level. Software version
C.OPT.05.05.xxx is of the same controls revision level
as C.MLM.05.05.xxx. From this starting point, both
receive the same updates at each revision. Software
upgrades should only be performed by a Service Tech-
nician.
The OptiView™ Control Center display is highlighted
by a full screen graphics display. This display is nested
within a standard keypad, and is surrounded by "soft"
keys which are redefined based on the currently dis-
played screen. Eight buttons are available on the right
side of the panel, and are primarily used for navigation
between the system screens. At the base of the display
are 5 additional buttons. The area to the right of the key-
pad is used for data entry with a standard numeric key-
pad provided for entry of system setpoints and limits.
The Decimal key provides accurate entry of
setpoint values.
A +/- key has also been provided to allow en-
try of negative values and AM/PM selection
during time entry.
In order to accept changes made to the chiller
setpoints, the Check key is provided as a uni-
versal 'Enter' key or 'Accept'' symbol.
In order to reject entry of a setpoint or dis-
miss an entry form, the 'X' key is provided as
a universal 'Cancel' symbol.
Cursor Arrow keys are provided to allow movement on
screens which contain a large amount of entry data. In
addition, these keys can be used to scroll through his-
tory and event logs.

START/STOP CONTROL

The Start/Stop control is operated via a three-position
rocker switch. When toggled all the way to the right, it
is considered in the Stop-Reset (O) position. When in
the middle position, this is considered the RUN state.
FORM 160.81-O1 (1020)
ISSUE DATE 10/05/2020
JOHNSON CONTROLS