OptiView control center functions and navigation
Interface conventions
Each screen description in this document will begin with a section entitled Overview which will
describe the graphical elements on the screen and give a short summary of the functions available.
Each element on the screen will then be categorized into three distinct groups: Display Only,
Programmable, and Navigation. Below is a short description of what types of information are
included in these groups.
The Programmable values and Navigation commands are also subject to access level restrictions
as described below. For each of these elements, an indication is given to show the minimum access
level required to program the value or navigate to the subscreen.
Display only
Values in this group are read-only parameters of information about the chiller operation. This
type of information may be represented by a numerical value, a text string, or an LED image. For
numerical values, if the monitored parameter is above the normal operating range, the high limit
value will be displayed along with the ‘>’ symbol; if it is below the normal operating range, the low
limit value will be displayed along with the ‘<’ symbol. In some cases, the value may be rendered
invalid by other conditions and the display will use X’s to indicate this.
Programmable
Values in this group are available for change by the user. In order to program any setpoints
on the system, the user must first be logged in with the appropriate access level. Each of the
programmable values requires a specific Access Level which will be indicated beside the specified
value. All of the programmable controls in the system fall into one of the categories described
below:
Access level
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. In order to gain standard
OPERATOR level access, the Home Screen Login Password would be entered as 9 6 7 5,
using the numeric keypad.
• SERVICE: In the event that advanced diagnostics are necessary, a SERVICE access level has
been provided. Only qualified service personnel use 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 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. Correct
procedure requires that after making necessary setpoint adjustments the user return to the Home
Screen and logout.
YMC
2
Mod B with OptiView
™
Control Center
28
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