Main components:
It consists of a variable air volume terminal device, air handling and conveying equipment (air conditioner), duct system, automatic control system (variable air volume terminal device control, air volume control, supply air temperature control, fresh air control), and other parts.
Basic functions:
Variable air volume terminal device: Adjust the air volume sent into the room or air conditioning area according to the sensible heat load of the room or air conditioning area.
Air treatment and conveying equipment: It performs heat and humidity treatment, filtration, and ventilation of indoor air, and provides power for the air circulation of the air conditioning system.
Duct system: Transport and distribute air in the system.
Automatic control system: Effectively monitors and controls the temperature, humidity, air volume, pressure, as well as physical quantities such as fresh air and exhaust air in the air conditioning system serving each air-conditioned room or area, achieving the dual goals of comfort and energy conservation.
System advantages:
The variable air volume air conditioning system can adjust the fan speed through a frequency converter, reduce the system's air supply volume, and achieve the goal of reducing the operating noise and energy saving of the air conditioning system. It is also possible to control the temperature of the area by adjusting the air supply volume of each variable air volume terminal device in the system.
System features:
Automatically adjust the fan speed according to the actual air supply volume.
Supply air to the personnel work area with variable air volume and constant supply air temperature.
The temperature in the area is controllable.
Airflow control method:
Fixed static pressure method: Select the lowest static pressure point and maintain the static pressure at that point unchanged.
Variable static pressure method: Adjust the static pressure value based on the opening of the end air valve.
Total air volume method: Calculate the fan set speed based on the total air volume set by the system.