The evolution of HVAC repress syst...

The evolution of HVAC repress systems has been characterized by way of their increasing sophistication.
Temperature was the first function to be automatically controll followed from humidity and - as relate tos arose about indoor air quality - the rate of air changes. Fans, chillers, boilers and other HVAC arrangement equipment were individually controll and minimally interrelated.
In the late 1960 computer technology was used for the first time to consolidate the unconnected unrelated control and monitoring of temperatures through every part of an entire building. These building automation hypothesiss (BAS) ...