Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
An ideal air system is not mean to be a realistic piece of equipment. It's often used to calculate the building's heating and cooling loads or is used when the HVAC equipment is not known. It has a constant year-round COP of 1, though I believe you can specify a heating or cooling efficiency for it using the EnvironmentalImpactFactors object.
If you want to model an air conditioning system, you can add a DX coil object to your model. Unlike an ideal air system, air conditioners and heat pumps will have COPs that vary throughout the year based on (primarily) outdoor temperature.
| | 2 | No.2 Revision |
An ideal air system is not mean to be a realistic piece of equipment. It's often used to calculate the building's heating and cooling loads or is used when the HVAC equipment is not known. It has a constant year-round COP of 1, though I believe you can specify a heating or cooling efficiency for it using the EnvironmentalImpactFactors object.object -- see the District Heating Efficiency and District Cooling COP fields.
If you want to model an air conditioning system, you can add a DX coil object to your model. Unlike an ideal air system, air conditioners and heat pumps will have COPs that vary throughout the year based on (primarily) outdoor temperature.
