recordHVAC
Set points for the HVAC system
Extends from Modelica.Icons.Record.
Information
Data records with design and control parameters for the building heating, cooling and domestic hot water load.
Parameters
| Type | Name | Default | Description |
|---|---|---|---|
| Modelica.Units.SI.ThermodynamicTemperature | TChiWatRet_nominal | TChiWatSup_nominal + dTChiWat_nominal | Nominal chilled water return temperature |
| Modelica.Units.SI.ThermodynamicTemperature | THeaWatRet_nominal | THeaWatSup_nominal - dTHeaWat_nominal | Nominal heating hot water supply temperature |
| Chilled water | |||
| Modelica.Units.SI.ThermodynamicTemperature | TChiWatSup_nominal | 7 + 273.15 | Nominal chilled water supply temperature |
| Modelica.Units.SI.TemperatureDifference | dTChiWat_nominal | 5 | Nominal chilled water temperature difference |
| Modelica.Units.SI.ThermodynamicTemperature[2,2] | tabChiWatRes | [16 + 273.15, 12 + 273.15; 27 + 273.15, TChiWatSup_nominal] | Chilled water supply temperature reset schedule |
| Heating hot water | |||
| Modelica.Units.SI.ThermodynamicTemperature | THeaWatSup_nominal | 60 + 273.15 | Nominal heating hot water supply temperature |
| Modelica.Units.SI.TemperatureDifference | dTHeaWat_nominal | 10 | Nominal heating hot water temperature difference |
| Modelica.Units.SI.ThermodynamicTemperature[2,2] | tabHeaWatRes | [-6.7 + 273.15, THeaWatSup_nominal; 16 + 273.15, 30 + 273.15] | Heating hot water supply temperature reset schedule as a function of outdoor air temperature. Don't set below 30 as the isolation valve is open only at 30 degC |
| Domestic hot water | |||
| Modelica.Units.SI.ThermodynamicTemperature | THotWatSupTan_nominal | 50 + 273.15 | Nominal domestic heating water supply temperature to the tank |
| Modelica.Units.SI.ThermodynamicTemperature | THotWatSupFix_nominal | 45 + 273.15 | Nominal domestic hot water supply temperature to the fixture |
Revisions
-
November 14, 2025, by Michael Wetter:
First implementation.
This is for #4354.