Static pressure setpoint determination method for the fixed static pressure control VAV system

Suitable static pressure setpoint is the key to the energy-saving and stable operation for the VAV system. Presents a foreign determination method, and applies it in a real VAV system. Puts forward an improved method which identifies the index circuit first and then figures out static pressure setpoint. Applies these two methods in the same system to determine the system static pressure setpoint respectively and their results are equal. These two methods can both find suitable static pressure setpoints and are useful for the commissioning and operation of VAV systems.