McQuay Air Conditioning Repair Q&A; FAC Industrial Control Microcomputer Working Principle: The control system mainly consists of an industrial control microcomputer, relay control and protection electrical appliances, and various temperature and humidity sensors, filter blockage transmitters, anti-freeze protectors, electric air valves, electric water valves, electromagnetic steam humidifiers, variable-speed fans, etc., installed on the unit.
The function of the FAC industrial control microcomputer is to compare the detection values from various sensors with the target values, and according to the comparison results, output corresponding electrical signals. Through the electric water valve, it realizes water quantity control; through the steam humidifier valve, it changes the humidification amount; through the electric fan valve, it changes the fresh air volume. By changing the fan speed, it adjusts the air supply volume, keeping the temperature and humidity of the supplied air within the optimal energy-saving range required, allowing the equipment to operate under the best energy-saving conditions, thereby achieving intelligent optimal energy-saving control.
The FAC industrial control microcomputer can independently realize full-year automatic intelligent optimization control and can also be networked with the entire building system, forming a hierarchical distributed control system. The unit can provide world-advanced self-learning and self-adaptive control software. The control system automatically identifies, automatically sets control parameters, automatically judges and converts energy-saving conditions, achieving full automation. Operators need only one day of training to start work, further improving the level of temperature and humidity control.
Installation and debugging are very simple. The air conditioner, computer, sensors, actuators, and all control devices are integrated into one system, realizing the integration of machinery, electronics, and instrumentation. During construction, only the power supply, inlet and outlet water pipes, humidification pipes, and air ducts need to be installed for the system to function normally. This greatly simplifies installation, shortens the construction period, and enhances safety.
Source: Beijing McQuay Air Conditioning Repair Phone http://blog.tianya.cn/blogger/blog_main.asp?BlogID=3774629.