Damper Status: This line will indicate “OK- Modulating” when the Airside
Economizer is available to perform cooling. Otherwise, it will state what condition is
preventing it from running.
Damper Modulation: Shows the current damper modulation based on
temperature demand.
Min Damper Open: This setting determines the minimum opening of the damper.
Range of selection is 0 to 70% with a default setting of 0%.
Max Damper Open: This setting determines the maximum opening of the damper.
Range of selection is 70% to 100% with a default setting of 100%.
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Temp Sensors Used: Select how many rack sensors are installed. Range of
selection is 0 (default) to the maximum sensors supported by the module. Note: An
external rack sensor module is required when more than 1 sensor is selected (3
sensors on IRDX and IRCW models). Use the Options Installed screen to select
the type of external module installed.
Groups Used: (only shown when 4 or more temp sensors are installed). This is
the total number of groups that the sensors will be arranged in. Range of
adjustment is: None (default setting) to ½ the number of temp sensors installed.
When groups are not used, all sensors are effectively in the same group.
Exclude T Band: (only shown when external module is installed). This is the
amount of deviation from the average rack temperature. If a sensor deviates more
that this setting, it will be excluded from control and determining the average
temperature. Once it comes back within the exclude T band for at least 60
seconds, it will return to normal function. Range of adjustment is 5.0°F to 99.0°F
with a default setting of 10.0°F
Use Highest: The rack temperature can be determined by using the Highest or the
Average temperature of sensors or groups of sensors.
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