*2.1.2 Types of all-air systems*

*2.1.2.1 Conventional systems*

A.Classification of conventional systems

These systems can be classified into two groups [1–5], namely:

i. Fixed supplied air volume flow rate with variable supplied air temperature

In these systems the rate of air flow remains constant, and the zone-required temperature is obtained by varying the supplied air temperature.

i. Variable supplied air volume flow rate with fixed supplied air temperature

These systems maintain fixed supplied air temperature; however the zone-required temperature is maintained by varying the volume flow rate of supplied air.


*Central Air Conditioning: Systems and Applications DOI: http://dx.doi.org/10.5772/intechopen.89455*
