Welcome to visit Daqing!
Current location:front page >> mechanical

How does central air conditioning work?

2026-01-08 01:09:30 mechanical

How does central air conditioning work?

Central air conditioning is a common air conditioning system in modern buildings. It provides cooling or heating services to the entire building through a set of centralized equipment. This article will introduce in detail the working principle, components and operation process of central air conditioning, and provide you with a comprehensive analysis based on the hot topics and hot content on the Internet in the past 10 days.

1. Components of central air conditioning

How does central air conditioning work?

The central air conditioning system mainly consists of the following core parts:

componentsFunction
compressorCompress low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas
condenserCool high temperature and high pressure gas into high pressure liquid
expansion valveReduce the pressure of the refrigerant so that it evaporates and absorbs heat
evaporatorAbsorb indoor heat to achieve cooling effect
fan coil unitDelivers hot and cold air to various rooms

2. Working principle of central air conditioning

The operation of central air conditioning is based on the principle of refrigeration cycle. The specific process is as follows:

1.compression process: The compressor compresses low-temperature and low-pressure refrigerant gas into high-temperature and high-pressure gas.

2.condensation process: High-temperature and high-pressure gas enters the condenser and becomes high-pressure liquid through cooling.

3.expansion process: The high-pressure liquid is depressurized through the expansion valve and becomes a low-temperature and low-pressure liquid.

4.evaporation process: Low-temperature and low-pressure liquid absorbs indoor heat in the evaporator and evaporates into gas to achieve refrigeration effect.

3. Types of central air conditioners

According to different application scenarios and needs, central air conditioners can be divided into the following types:

TypeFeatures
Water-cooled central air conditionerCooling through water circulation, suitable for large buildings
Air-cooled central air conditionerDissipates heat through air and is easy to install
Multi-split central air conditionerOne host can connect to multiple indoor units, providing great flexibility

4. The relationship between hot topics on the Internet in the past 10 days and central air conditioning

Recently, hot topics about central air conditioning on the Internet mainly focus on energy conservation and environmental protection, intelligent control and healthy air. The following is a summary of relevant hot topics:

hot topicsRelated content
Energy saving and environmental protectionThe new central air conditioner uses variable frequency technology to reduce energy consumption by 30%
Intelligent controlRemotely control the central air conditioner through mobile APP to improve user experience
healthy airThe central air conditioner is equipped with an air purification function to filter PM2.5 and bacteria

5. Maintenance and maintenance of central air conditioning

In order to ensure the efficient operation of central air conditioners and extend their service life, regular maintenance and upkeep is essential. The following are common maintenance items:

1.Clean filter: Clean or replace the filter regularly to avoid dust accumulation that affects air quality.

2.Check refrigerant: Ensure sufficient refrigerant to avoid a decrease in system efficiency.

3.Clean condenser: Remove dust and debris on the surface of the condenser to ensure heat dissipation.

4.Check circuit: Regularly check the circuit system to prevent electrical failures.

6. Summary

Central air conditioning provides a comfortable indoor environment for modern buildings through efficient refrigeration cycle systems and intelligent control technology. Understanding its working principles and components can help users better use and maintain the equipment. At the same time, combining the current trends in energy conservation, environmental protection and healthy air, choosing suitable central air conditioning products will further improve the quality of life.

Next article
  • What are the six major systems in mines?The six major mine systems are the core components of coal mine production safety, covering key functions such as monitoring and control, personnel positioning, emergency avoidance, pressure wind self-rescue, water supply rescue, and communication. Together, these systems form a mine safety protection network, which effectively reduces the risk of accidents and ensures the safe
    2026-01-25 mechanical
  • What part of pig money isRecently, discussions about the term "pig money" have quietly emerged on social media and food forums, becoming one of the hot topics. Many netizens are curious about what part "pig money" is, as well as its use in cooking and nutritional value. This article will combine the hot content of the past 10 days on the Internet to provide you with a detailed analysis of the origin, characteristics
    2026-01-22 mechanical
  • What pipes are used for fire piping?As an important part of the fire protection system, the selection of materials for fire protection pipes is directly related to the safety and reliability of the fire protection system. In recent years, with the rapid development of the construction industry, the materials of fire pipes have also been continuously updated and updated. This article will combine the hot topics and ho
    2026-01-20 mechanical
  • Insurance is what the five elements belong toIn recent years, the development of the insurance industry has attracted much attention, and the five elements attributes of insurance have also triggered extensive discussions. The Five Elements Theory is an important part of traditional Chinese culture, and many industries and things are classified as one of the Five Elements: metal, wood, water, fire, and earth. So, whi
    2026-01-17 mechanical
Recommended articles
Reading rankings
Friendly links
Dividing line