IB CentralHeatPumpSystem

This is a central geothermal application that contains one or more chiller-heaters centrally located in the building; the available chilled and/or hot water is then piped to the individual zones. Chiller-heaters used for this particular system can be of two types: 1) standard vapor-compression, non-reversible cycle chillers designed for heat recovery or 2) reversible-cycle, water-to-water heat pump chillers. Unlike a distributed ground source heat pump configuration where individual heat pumps are located in each zone, a centralized geothermal configuration has one or more chiller-heaters. Its function is to encapsulate the extra controls needed to turn individual chiller-heater modules on/off and whether they are to operate in cooling-only, heating-only or simultaneous cooling-heating mode and whether to connect the source water to the evaporator or condenser side. A variety of control schemes can be designed by setting schedules for both zone control types and individual chiller-heat.... (Due to the length of content, documentation has been shown partially) Above content copyright © 1996-2025 EnergyPlus, all contributors. All rights reserved. EnergyPlus is a trademark of the US Department of Energy.

Inputs

• chillerHeaters

use ChillerHeaterPerformanceElectricEIR or CentralHeatPumpSystemModules. Typically three chillerheaters are needed

• params

Detail settings for this HVAC object. Use Ironbug_ObjParams to set input parameters, or use Ironbug_OutputParams to set output variables.

Outputs

• ToCW_Demand

connect to condenser water plantloop's demand side

• ToCHW_Supply

connect to chilled water plantloop's supply side

• ToHW_Supply

connect to hot water plantloop's supply side