York YR Manual page 24

Optiview Control Center
SECTION 2 - OPTIVIEW™ CONTROL CENTER
the chiller controls. The access levels are listed above
in hierarchical order beginning with the lowest level
and proceeding to the highest level. Users logged in
under higher access levels may perform any actions
permitted by lower access levels.
The OPERATOR access level is accompanied by a
10-minute timeout. After ten (10) successive minutes
without a key press, the panel will revert to the VIEW
access level. This prevents unauthorized changes to the
chiller if a user was logged in at a higher access level
and failed to logout. Proper procedure requires that
after making necessary setpoint adjustments the user
return to the HOME screen and logout.
Logout
Access Level Required: OPERATOR
This key is displayed when a user is logged in at any
level other than VIEW. Pressing it will return the ac-
cess level to VIEW.
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 below.)
Message Clear
Access Level Required: SERVICE
When certain safety or cycling conditions have been
detected and the chiller has been shutdown, the main
status display of the chiller will continue to display a
message indicating the cause of the shutdown. Using
this key, the message can be cleared once the condition
has been removed.
24
Warning Reset
Access Level Required: OPERATOR
Use of this key acknowledges a warning condition and
resets the message display associated with it.
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.
Compressor
A detailed view of all the compressor parameters. This
includes slide valve control, and Hot Gas Bypass Con-
trol and slide valve calibration.
Oil Sump
A detailed view of all the oil sump parameters. This
includes the seal lubrication functionality.
Motor
A detailed view of the Motor Controller parameters,
specific to the controller type presently utilized on the
chiller system. This allows programming of the Cur-
rent 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.
FORM 160.81-O1 (1020)
ISSUE DATE 10/05/2020
JOHNSON CONTROLS