Schedule Screen; Figure 18 - Schedule Screen - York YR Manual

Rotary screw liquid chillers with optiview control center for electro-mechanical starter & solid state starter
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Optiview Control Center
SECTION 2 - OPTIVIEW™ CONTROL CENTER

FIGURE 18 - SCHEDULE SCREEN

Overview
The SCHEDULE screen contains more programmable
values than a normal display screen. As such, each
programmable value is not linked to a specific button.
Instead the SELECT key is used to enable the cursor
arrows 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 '√' (Check) key to program the Start
/ Stop times for that day.
In order for the Start / Stop combination to be uti-
lized, each Start time must have a corresponding Stop
time which occurs later in the day. The presently pro-
grammed schedule for a given day can be cancelled by
setting both the Start and Stop time to 12:00AM. If the
Start time equals the Stop time (with any time other
than 12:00AM), the chiller is OFF for that day. If the
user desires the chiller 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.
The chiller will not stop but continue to operate until
the stop of Day 2.
The user has the ability to define a standard set of Start /
Stop times which are utilized every week. The user may
then specify exception Start / Stop combinations for any
day of the week up to 6 weeks in advance. At the end
of each week the schedule for the next week is created
by combining the standard week definition and the next
defined exception week. The schedule is then updated
as each of the exception weeks "shifts down", leaving a
new, blank exception week in the 6th week slot.
54

SCHEDULE SCREEN

Display Only
None
Programmable
Standard Week Start/Stop Times
Access Level Required: OPERATOR
For each day of the week, the user may specify a time
for the chiller to start and a time for the chiller to stop.
The times specified in this entry week will be used as
the default for every week of chiller operation.
Exception Start/Stop Times
Access Level Required: OPERATOR
For each day of the week, the user may specify a time
for the chiller to start and a time for the chiller to stop.
These Start / Stop combinations may be scheduled up
to five (5) weeks in advance and also for the present
week. As each week goes by, the new schedule will
be created for the present week using the Exception
specification in combination with the Standard week
definition, as described above.
Schedule (Enabled / Disabled)
Access Level Required: OPERATOR
Allows the user to enable or disable the monitoring
function which enforces the scheduled starting and
stopping of the chiller.
FORM 160.81-O1 (1020)
ISSUE DATE 10/05/2020
00232VIP
JOHNSON CONTROLS

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