Can an EE system heat and cool at the same time?
Each unit has one only compressor, and can only heat or cool at any given moment. ICI systems require more than one unit, and the greater the number of units (ie: the larger the system), the more balanced the load. For example, schools can use one unit to extract heat from a gymnasium to provide cooling, and transfer the heat to the unit serving the library, where heat is required. This ‘internalizing’ of the load allows the demands on the ground loop to be reduced, either allowing the ground loop to rejuvenate more quickly or to reduce the installed costs.
