The following table describes the attributes used by the Occupied Sequencing (AHU MADD w HR) module.
|
Name |
Description |
Default Value |
|---|---|---|
|
CD-STATE (State) |
Represents the current state generated by the sequence. |
Satisfied |
|
Cooling Control Status |
Value fed back from the mechanical cooling PID controller necessary for the sequencer to determine what actions to take. |
Normal Set Name: Control Status |
|
Damper Control Status |
Value fed back from the economizer PID controller necessary for the sequencer to determine what actions to take. |
Normal Set Name: Control Status |
|
Fan Ready |
Comes from the Start/Stop Sequencer and indicates that the fans and dampers have been sequenced properly. |
False |
|
Free Cooling Available |
Output of the Economizer Availability module. |
False |
|
Heat Recovery Control Status |
Contains the value fed back from the heat recovery PID controller necessary for the sequencer to determine what actions to take. |
Normal Set Name: Control Status |
|
Heat Recovery Modulated |
Indicates whether the heat recovery is modulated (True equals modulated and False equals not modulated). |
False |
|
Preheat Control Status |
Contains the value fed back from the preheat PID controller necessary for the sequencer to determine what actions to take. |
Normal Set Name: Control Status |
|
Preheat Percent Cmd |
Indicates the preheat command used to prevent the preheat from cycling off and on unnecessarily when the AHU starts. |
0.0% |
|
Process Variable |
Cold deck discharge temperature compared to the setpoint and used to determine whether heating or cooling is required. |
13 °C, 55 °F |
|
Setpoint |
Setpoint the state generator attempts to control. |
13 °C, 55 °F |