Table 1 describes the attributes used by the Damper Trouble Detection modules.
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
Closed Flow Fraction |
Indicates the maximum fraction of the Max Flow to expect when the damper is fully closed. This value is non-zero to account for leakage of the damper when fully closed. |
0.10 Display Precision: 100ths |
|
|
Current Flow |
Indicates the flow measurement for the monitored damper. |
0.0 l/s, 0.0 cfm |
|
|
Damper Closed |
Indicates whether the damper is closed. |
False |
|
|
Damper Open |
Indicates whether the damper is open. |
False |
|
|
Damper Percent Cmd |
Indicates the Present Value of the damper output object (Analog Output Object or Position Adjust Output Object). |
0.0% |
|
|
Delay |
Specifies the time allowed for the damper to open or close before the flow is checked to indicate Trouble. |
75 seconds Display Precision: 1s |
|
|
Max Flow |
Indicates the rated flow for the monitored damper. |
500.0 l/s, 1000.0 cfm |
|
|
Open Flow Fraction |
Indicates the minimum fraction of the Max Flow to expect when the damper is fully opened. Adjust this value after testing and balancing each VAV box to determine the actual flow that can be achieved during an emergency situation (for example, pressurize). |
0.85 Display Precision: 100ths |
|
|
Trouble |
G |
Indicates the current status of the damper control. |
False |