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Data for HVAC analytics
General information
Building operation is (or at least shall be) determined by a schedule. Therefore we need some information about regimes in the building (at least non-stop operation vs. office hours determined operation). This applies to all analytical topics listed below.
We do not require outdoor temperature, we use independent data source.
Bellow is a list of recommend variables for each analytical topic.
Heating circuit
| Signal | Type | Note |
|---|---|---|
| Supply water temperature | measurement and setpoint | |
| Pump | measurement or setpoint | |
| Valve | setpoint |
Energy meter
| Signal | Type | Note |
|---|---|---|
| Cumulative meter value | measurement | “Energy” measurement is more valuable than “power” for the analysis |
Indoor air quality
| Signal | Type | Note |
|---|---|---|
| Indoor temperature | measurement and setpoint |
Air handling unit
AHU is more complex appliance and there is no unified data set for analysis. Usually, AHU is described by 15 - 30 relevant variables.
| Signal | Type | Note |
|---|---|---|
| fans | measurement or setpoint | fan state, frequency converter data |
| heating | measurement or setpoint | supply and return temperatures, pump and valve |
| cooling | measurement or setpoint | supply and return temperatures, pump and valve |
| humidifier | measurement or setpoint | |
| heat recovery | measurement or setpoint | bypass position, wheel speed |
| air temperatures | measurement and setpoint | supply, zone, outlet |
| dampers | measurement or setpoint |