recordHVAC
Set points for the HVAC system
Extends from Modelica.Icons.Record (Icon for records).
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
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November 14, 2025, by Michael Wetter:
First implementation.
This is for #4354.