Trane TRG-TRC014-EN Interior Spaces, Reheat Required, System Configurations, period three

period three

System Configurations

notes

Interior Spaces

cooling-only VAV terminal unit

Figure 63

Interior Spaces

Because an interior space is surrounded by spaces at the same temperature, it does not experience the same heat gain and loss fluctuations as a perimeter space. Therefore, an interior space typically requires some degree of cooling all year long to overcome the heat generated by people, lighting, and so forth.

Most interior spaces are served by cooling-only terminal units that modulate in response to the changing space cooling load. They also have a minimum airflow setting to serve ventilation requirements.

Interior Spaces, Reheat Required

VAV reheat terminal unit

Figure 64

Some types of interior spaces such as conference rooms require some amount of tempering to avoid overcooling the space at part loads. This is common for spaces in which the occupancy varies from full occupancy to two or three people.

46 TRG-TRC014-EN