York YK-EP Operation And Maintenance Manual page 23

Table 4: Display only fields
Field/LED name
Economizer Motor Input
Power
Economizer Motor
Operating Hours
Economizer Motor Run
(LED)
Note: For fields requiring access level of SERVICE. Qualified service technicians should refer
to the OptiView Control Center Service for operation instructions and explanations of all
programmable setpoints and displayed values.
Table 5: Programmable
Button Access level
Login View
Logout Operator
Print View
YK-EP Style B Centrifugal Chiller
Description
Displays the Input Power kW of the economizer motor.
Displays the cumulative operating hours of the economizer motor.
Is ON when the digital output controlling the motor starter contact
for the economizer motor is on.
Description
The OptiView Panel restricts certain operations based on password
entry by the operator. Three different access levels are provided
as follows: VIEW: The panel defaults to the lowest access level
which is termed VIEW. In this mode, the chiller operating values
and setpoints can be observed, but no changes can be made.
OPERATOR: The second access level is termed OPERATOR and
will allow the customer to change all of the setpoints required to
operate the chiller system. The OPERATOR access level reverts to the
VIEW level after 10 continuous minutes without a keypress. SERVICE:
In the event that advanced diagnostics are necessary, a SERVICE
access level has been provided. Only qualified service personnel
utilize this access level. This level provides advanced control over
many of the chiller functions and allows calibration of many of 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 keypress, 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.
This key is displayed when a user is logged in at any level other than
VIEW. Pressing it will return the access level to 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
reporting capability. (Refer to
be present if the chiller is presently configured to log any incoming
Adaptive Capacity Control map points. (Refer to
Control (ACC) details screen
History screen.) This option will not
Adaptive Capacity
.)
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