Programming instructions

Select Ventilation windows

 Temperature charts display ambient and set point temperatures for a Power Block. Temperature

charts are useful for tracking down problems in a zone, analyzing the effects of different

ventilation strategies, and monitoring conditions. Temperature charts display as line charts.

For more information about Select Ventilation viewers, charts, and reports, read Chapter 3:

Analyzing data on page 63.

Fail-safe design

If the computer or communication between the computer and the Power Blocks fails, Power Blocks

will continue to operate at the last settings received before the failure. In other words, Power Blocks

will continue to respond to changes in room temperature and continue to adjust equipment as the

temperature changes. When the problem has been fixed, all settings will be updated and

synchronized with the computer.

Alarm notification and logging

When there is an alarm condition, Select Ventilation displays a message in the Communications Center.

Select Ventilation logs all alarm conditions; you can view or print them from the Alarm Log Report.

For more information about alarm settings, read Programming alarms on page 42.

You can connect a siren or other external alarm system to the alarm relay on a Power Block. For

more information, read the Power Block installation guide.

Select Ventilation windows

The following section is an overview of the main Select Ventilation windows.

Communication Center

The Communication Center displays communication, status, and alarm messages from OMNI-

Select modules and devices. Check the Communication Center regularly to ensure systems

functioning normally and to see if there are problems or potential problems.

The Communication Center is the only area of OMNI-Select that is available to all users, regardless

of their access. The Communication Center is also the gateway to the Main window, where you can

access settings, configuration, and reports.