York YMC2 - Page 31

JOHNSON CONTROLS
31
SECTION 3 - OPTIVIEW™ CONTROL CENTER FUNCTIONS AND NAVIGATION
FORM 160.84-OM1
ISSUE DATE: 9/21/2017
3
Print
Access Level Required: VIEW
Use this key to generate a hard-copy report of the
present system status. This provides a snapshot of the
primary operating conditions at the time the key is
pressed. The History page provides enhanced report-
ing capability. (See HISTORY Screen.) This option
will not be present if the chiller is presently configured
to print History, New Data, which continuously logs.
Clear Fault
Access Level Required: VIEW
When safety conditions have been detected, the chiller
is shutdown, and the main status display of the chill-
er will display a message indicating the cause of the
shutdown. Using this key, the fault and message can be
cleared once the condition has been removed. The key
only shows when the condition can be cleared. If the
chiller has a standing Local or Remote run command,
it will start when the key is pressed.
Warning Reset
Access Level Required: OPERATOR
Use of this key acknowledges a warning condition and
resets the message display associated with it.
Start
Access Level Required: OPERATOR
This key is only available when the chiller does not
have a local run request. Pressing this key allows selec-
tion of enter to run or cancel to abort to stopped. Enter
causes the chiller to start if control source is LOCAL,
or permits run if control source is any remote.
Soft Stop
Access Level Required: OPERATOR
This key is only available when the chiller is in local
mode and has a local run request. It shows in place
of the start key. Pressing this key allows selection of
enter to stop or cancel to remain running. Enter causes
the chiller to perform a soft shutdown and disables the
remote run permissive.
NAVIGATION
System
Used to provide additional system information.
Evaporator
A detailed view of all evaporator parameters, including
the programmable Leaving Chilled Liquid Setpoints.
Condenser
A detailed view of all condenser parameters, including
control of the liquid level functions.
Compressor
A detailed view of all the compressor parameters. This
includes surge protection, Magnetic Bearing Control,
Variable Geometry Diffuser, and calibration.
Capacity Control
A detailed view of all the parameters associated with
capacity control.
VSD
A detailed view of the motor and VSD parameters.
This allows programming of the Current Limit and the
Pulldown Demand Limit values.
Setpoints
This screen provides a single location to program the
most common system setpoints. It is also the gateway
to many of the general system setup parameters such as
Date/Time, Display Units, Scheduling, Printer Setup,
etc.
History
This screen provides access to a snapshot of system
data at each of the last 10 shutdown conditions, and
provides for trending operating parameters.