.Buildings.Templates.Components.Data.Chiller

Information

This record provides the set of sizing and operating parameters for the classes within Buildings.Templates.Components.Chillers. It is composed of a set of parameters corresponding to the design (selection) conditions and a sub-record per providing the chiller performance data. The design capacity is used to parameterize the chiller model. The capacity (and power) computed from the external performance data file is automatically scaled by the chiller model to match the value provided at design conditions.

Note that the design value for condenser cooling fluid (e.g., condenser water) mass flow rate is only required for water-cooled chillers. Air-cooled chillers use a default outdoor air flow assignment since the chiller model doesn't explicitly calculate fan power based on outdoor air flow and condenser pressure drop. Instead, fan power is integrated into the chiller power computed from the performance data. This is because both US (AHRI Standard 550/590) and European (EN14511) chiller performance rating standards incorporate fan power into the rated total input power.