Present situation and trend in development of automatic control system of HVAC in China

Outlines four developing stages in automatic control system of HVAC in China. Points out that the designers of HVAC play an important role in designing of automatic control system. For the moment, the implementation and actual operation status of the system are unsatisfied and many projects have not achieved desired design results at present. Analyses the existing problems. Gives some relevant suggestions and solutions. Points out the trend in development of the system.