York YK Series - Optiview Control Center; FIGURE 4 - Optiview Control Center

SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
JOHNSON CONTROLS
15
FORM 160.54-O1
ISSUE DATE: 9/10/2014
2
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
keypad is used for data entry with a standard numer-
ic keypad 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
universal ‘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 pro-
vided to allow movement on
screens which contain a large
amount of entry data. In addi-
tion, these keys can be used
to scroll through history and
event logs.
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 position. When in
the middle position, this is considered the RUN state.
When toggled to the left-most position, it is considered
in the START state. Each state is described in detail
below:
• STOP / RESET (O)
When in this position, the chiller will not run un-
der any condition. For safety reasons, this posi-
tion is required for many maintenance tasks to be
completed (such as proximity probe and vane cal-
ibration). In addition, the switch must be placed
in this state following a safety shutdown before
the chiller is allowed to restart. This guarantees
that manual intervention has taken place and the
shutdown has been acknowledged.
OPTIVIEW CONTROL CENTER
29348A
FIGURE 4 - OPTIVIEW CONTROL CENTER