History Screen; Display Only; Figure 44 - History Screen - York YST Operation Manual

Steam turbine drive centrifugal liquid chiller with optiview control center design level f and g
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SECTION 2 - OPTIVIEW CONTROL CENTER INTRODUCTION
noTe: OptiView
Control Center Screens shown may NOT represent the exact screens according to the software version utilized.

figure 44 - hiSTorY SCreen

overvieW
This screen allows the user to browse through the faults.
In order to get a more thorough reporting of the system
conditions at the time of the recorded shutdown, move
to the sub-screen HISTORY DETAILS.
The user may use the Select Fault button to select the
history to view. At this point the View Details button is
used to jump to a sub-screen containing stored chiller
parameters values at the time of the shutdown. Addi-
tionally, the Print History button can be used to gener-
ate a hard-copy report of the parameter values at the
time of the shutdown.

diSplaY onlY

last normal Shutdown
This window displays the date and time and the de-
scription of the last normal shutdown. A normal shut-
down is defined as:
• Local (Panel rocker switch)
• Remote (Digital, Analog or ISN)
last fault While running
This window displays the date and time and the de-
scription of the last safety or cycling shutdown while
the system was running.
114

hiSTorY SCreen

last Ten faults
This window displays a chronological listing (most
recent first) of the date and time and the description
of the last ten safety or cycling shutdowns that occur
while the system is running or stopped.
prograMMable
print history
Access Level Required: VIEW
This generates a report listing the status of the chiller
parameters at the time of the selected shutdown.
print all histories
Access Level Required: VIEW
This generates a report listing the status of the chiller
parameters at the time of each of the stored shutdowns.
alarm Silence
Access Level required: VIEW
This key silences the audible alarm on the Power
Panel which is activated on any warning or shutdown
condition.
FORM 160.67-O1
ISSUE DATE: 4/1/2015
00661VIP
JOHNSON CONTROLS

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