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46 TRG-TRC014-EN
notes
period three
System Configurations
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.
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.
Interior Spaces
cooling
cooling
-
-
only
only
VAV terminal unit
VAV terminal unit
Figure 63
VAV reheat
VAV reheat
terminal unit
terminal unit
Interior Spaces, Reheat Required
Figure 64