The following table describes the attributes used by the Min OA Damper Proportional Output modules.
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
Damper Percent Cmd |
V |
Contains the analog signal for the minimum OA damper, it is used to command the minimum OA damper position. This output can range from 0% to 100%. |
0% |
|
Low Limit Process Variable |
Low limit temperature process variable. This temperature is usually the mixed air temperature or the preheat air temperature. |
7 °C, 45 °F |
|
|
Low Limit Proportional Band |
Defines the temperature range where the damper is proportionally modulated to control the mixed air temperature to the low limit temperature setpoint. |
5 °C, 9 °F |
|
|
Low Limit Setpoint |
Contains the upper threshold for the low limit process function. When the low limit process variable is above this temperature, the damper may be modulated to provide adequate levels of outdoor air. Below this setpoint, outdoor air levels may be limited by modulating the damper closed to control the low limit process variable to the low limit setpoint. |
7 °C, 45 °F |
|
|
Minimum OA Position |
Defines the minimum OA damper position. |
90% |
|
|
MOAD-OUTSTATE (State) |
V, G |
Indicates the current operational mode of the output controller. |
Close Set Name: AHU MinOAD Mode |
|
Mode |
Contains the desired mode of operation. |
Close Set Name: AHU MinOAD Mode |
|
|
Ramp Rate |
Defines the rate of change in damper position. This input is used in the Ramp Min OA and Ramp Closed modes. |
50 Change per Minute |