Johnson Controls YORK OPTIVIEW CONTROL CENTER, Operation Manual

Page: 70 / 142

JOHNSON CONTROLS
70
FORM 160.10-O1
ISSUE DATE: 4/27/2018
SECTION 2 - OPTIVIEW OPERATION
The chiller will continue to operate until the stop of
Day 2 or as programmed.
The schedule screen contains more programmable
values than a normal display screen. As a result, each
programmable value is not linked to a specific key. In-
stead, the “Select” key is used to enable the cursor ar-
rows which are used to highlight the day and the start
or stop time the user wishes to modify. At this point,
the user may press the ‘ ü ’ (Enter) key to program the
Start/ Stop times for that day.
DISPLAY ONLY
None
PROGRAMMABLE
Standard Week Start/Stop Times
Access Level Required: OPERATOR
For each day of the week, the user may program times
for the chiller to start and stop. The times programmed
in the “Standard” week will be used as the default start
and stop time for every day of the week.
OVERVIEW
The schedule screen allows the operator to program
a chiller operating schedule. The “Standard” weekly
schedule is a set of chiller start and stop times based
on a Sunday to Saturday week. The schedule also al-
lows for “Exception” day start and stop times for any
specific day of the week. Exception days may be pro-
grammed up to six weeks in advance.
As each week passes, the operating schedule for that
week is updated, using the standard weekly schedule
and adding the exception days for that week. The ex-
ception week schedule will shift, leaving a blank ex-
ception week in the last (sixth) slot.
In order for the Start/Stop combination to be utilized,
each “start time” must have a corresponding “stop
time” that occurs later in the day. The programmed
schedule for a given day can be cancelled by setting
both the start time and stop time to 12:00AM. If the
start time is the same as the stop time (with any time
other than 12:00AM), the chiller is OFF for that day. If
the chiller is required to operate continuously through
several days, the stop time of Day 1 can be set to 11:59
PM and the start time of Day 2 can be set to 12:00 AM.
SCHEDULE SCREEN
ID10011
FIGURE 26 - SCHEDULE SCREEN