Inside a template class, the connect clauses involving control
points typically do not have any graphical annotation and are
therefore not rendered as connection lines in the diagram view.
Those connect clauses are grouped together in a dedicated section
of the equation section of each class, namely /* Control
point connection - (start | stop) */.
We adopt the definition hereafter from ASHRAE (2021).
A set of components is a system if they share a load in common (i.e., collectively act as a source to downstream equipment, such as a set of chillers in a lead/lag relation- ship serving air handlers).
The following abbreviations are used in that package.
| Abbreviation | Description |
|---|---|
| AI | Analog input (integer or real) |
| AFMS | Airflow measuring station |
| AHU | Air handling unit |
| AO | Analog output (integer or real) |
| CHW | Chilled water |
| CW | Condenser water |
| DHW | Domestic hot water |
| DI | Digital input (Boolean) |
| DO | Digital output (Boolean) |
| DOAS | Dedicated outdoor air system |
| DP | Differential pressure |
| HHW | Heating hot water |
| OA | Outdoor air |
| VAV | Variable air volume |
| VFD | Variable frequency drive |