The following table describes the attributes used by the Fan Return or Exhaust Tracking modules.
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
EF-EFRSTHI or RF-RFRSTHI (Return Fan High) |
Desired return fan speed when the supply fan is at its high calibration point. This input is used in the Fan Track mode. It is used to scale the Supply fan command so the return fan moves the desired amount of air. |
100% |
|
|
EF-EFRSTLO or RF-RFRSTLO (Return Fan Low) |
Desired return fan speed when the supply fan is at its low calibration point. This input is used in the Fan Track mode. It is used to scale the Supply fan command so the return fan moves the desired amount of air. |
0% |
|
|
EF-OUTSTATE or RF-OUTSTATE (State) |
V, G |
Indicates the current operational mode of the output controller. |
Off Set Name: AHU RF Track |
|
EF-SFRSTHI or RF-SFRSTHI (Supply Fan High) |
Supply fan high flow calibration point. This input is used in the Fan Track mode. It is used to scale the Supply fan command so the return fan moves the desired amount of air. |
100% |
|
|
EF-SFRSTLO or RF-SFRSTLO (Supply Fan Low) |
Supply fan low flow calibration point. This input is used in the Fan Track mode. It is used to scale the Supply fan command so the return fan moves the desired amount of air. |
0% |
|
|
Mode |
Desired mode of operation. |
Off Set Name: AHU RF Track |
|
|
Return Fan Control Status |
V |
PID Status. The possible values are normal, overridden, disabled, low, timing low, high, and timing high. |
Normal Set Name: Control Status |
|
Return Fan OnOff |
V |
Contains the control signal for the return fan. |
Off Set Name: Off/On |
|
Return Fan Percent Cmd |
V |
This output is the analog signal for the return fan, it is used to command a fan speed. This output can range from 0% to 100%. |
0% |
|
Supply Fan Percent Cmd |
Analog signal from the supply fan. |
0% |