The following table describes the attributes used by the CHW Pump Differential Pressure Setpoint Reset modules:
|
Name |
Type 1 |
Description |
Default Value |
|---|---|---|---|
|
Deadband |
Provides an input, which is an area of a signal range or band where no action occurs. |
12.0 kPa, 2.0 psi |
|
|
Diff Pressure SP |
Indicates the desired differential pressure setpoint for the building’s chilled water loop. |
34.0 kPa, 5.0 psi |
|
|
Enable |
Provides the enable input, which allows the process to run. |
False |
|
|
Maximum dP Setpoint |
Indicates the maximum value to which the differential pressure setpoint can be reset by the module. |
276.0 kPa, 40.0 psi |
|
|
Period |
Indicates the time, in minutes, that the calculation executes. |
5 minutes |
|
|
Plant CHW Diff Pressure SP |
G |
Indicates the plant’s CHW differential pressure setpoint as determined by this module, based on the building chill water loop differential pressure error. |
34.0 kPa, 5.0 psi |
|
Process Variable |
Provides the control differential pressure. The building chill water differential pressure may be connected to this input. |
34.0 kPa, 5.0 psi |
|
|
Stage Down Threshold |
Indicates the amount that is subtracted from the current CHW Pressure setpoint when the building loop pressure is above setpoint. |
13.0 kPa, 2.0 psi |
|
|
Stage Up Threshold |
Indicates the amount that is added to the current CHW Pressure setpoint when the building loop pressure is below setpoint. |
34.0 kPa, 5.0 psi |
|
|
Startup Value |
Indicates the initial plant CHW differential pressure setpoint used in the off state. |
20.0 kPa, 3.0 psi |
|
|
State |
Provides an output that represents the current module mode of operation. |
Off Set Name: Off/On/Hold |