In order to create a comfortable and healthy indoor space, the air conditioning system plays a vital role. Among them, combined air conditioning units are widely used in various commercial, industrial and public facilities because of their high efficiency, flexibility and customizability. What is a combined air conditioning unit?

In modern building air conditioning systems, combined air conditioning units, as key equipment, bear the important task of regulating indoor temperature and humidity and providing a comfortable environment. Among them, the new exhaust section (also called the flat-top air distribution mixing section) is an important part of the unit. Its ingenious design and diverse functions are crucial to achieving an efficient and energy-saving air treatment process.

In modern architectural design, combined air conditioning units are key equipment for regulating indoor air environment, and their selection is directly related to the comfort, energy efficiency and operating costs of the building. Among them, the calculation of air conditioning load is the core link in the selection process. It requires comprehensive consideration of the building's purpose, area, height, personnel density and other factors to ensure that the selected unit can meet actual needs and achieve efficient and stable air treatment effects.

The modular design of combined air conditioning units brings many advantages. First of all, this design allows air conditioning units to be flexibly combined according to different usage needs, thus avoiding the waste of energy consumption of traditional large-scale central air conditioners and making it more energy-saving. The modular design gives the air conditioning unit flexibility. Whether it is cooling capacity, building structure or ambient temperature, combined air conditioners can be customized to meet the requirements, which greatly improves the applicability and flexibility of the equipment.

The combined air-conditioning unit is the master of modern air-conditioning technology. It is composed of multiple functional sections, each of which has its own unique role and works together to achieve comprehensive air treatment. The following are the main modules and functions of the combined air conditioning unit: Fresh air section: Function: Responsible for introducing fresh air from the outside, providing sufficient fresh air volume indoors, and ensuring the freshness and quality of indoor air. Features: The fresh air outlet is usually equipped with an air volume regulating valve to adjust the fresh air volume as needed. Return air section: Function: used to connect the return air duct and recover part of the indoor air. This part of the air is processed and then returned to the room to achieve air recycling and improve energy efficiency. Features: The return air section is also equipped with an air volume regulating valve to control the return air volume. Mixing air section: Function: Mix fresh air and return air in a certain proportion. This function is particularly important in scenarios where both fresh air and return air need to be used to adjust indoor temperature and humidity. Features: mixed air section

The key to realizing intelligent control of combined air conditioning units lies in the introduction of advanced automation technology and intelligent algorithms. First of all, a complete control system should be built, which should be able to monitor the operating status of the air conditioning unit in real time, such as temperature, humidity, wind speed and other key parameters.

Combined air conditioning units are excellent at saving energy. This kind of unit usually adopts advanced energy-saving technology, such as frequency conversion technology, which can adjust the operating speed of the compressor according to actual needs to avoid unnecessary waste of energy. At the same time, they are also equipped with efficient air volume intelligent control technology, which can accurately adjust the air supply volume to ensure that energy consumption is minimized while meeting comfort needs. In addition, combined air conditioning units often apply air purification technology, which not only provides fresher indoor air, but also reduces the running time of the fan to a certain extent, thereby reducing energy consumption. The modular design of the unit also allows it to be flexibly combined according to actual needs, avoiding the phenomenon of a large horse-drawn cart and further improving energy efficiency. What’s more worth mentioning is that many combined air conditioning units also have intelligent control systems that can monitor the indoor environment in real time and automatically adjust according to preset parameters. This kind of intelligent management

Combined air conditioning units are common air conditioning equipment in modern buildings, and their installation quality directly affects the use effect. The following are several key issues that should be paid attention to during installation: First, ensure that the installation position of the unit is stable and firm to avoid vibration and noise. At the same time, sufficient space should be reserved to facilitate future maintenance and inspection. Secondly, the air inlet and outlet of the unit should be avoided to be blocked to ensure smooth air circulation.

Application cases of combined air conditioning units in the medical industry include but are not limited to: Operating rooms: Operating rooms need to maintain a clean and sterile environment. Combined air conditioning units can provide the functions of filtering and purifying air to ensure the air quality in the operating room. Intensive Care Unit (ICU): ICUs require precise control of air to ensure patient safety and comfort. Combined air conditioning units can provide precise temperature, humidity and air quality control to meet the needs of ICU. Ward: The ward needs to maintain a comfortable temperature and humidity. The combined air-conditioning unit can provide a comfortable air environment and help patients recover better. Laboratory: The laboratory needs to maintain a clean and sterile environment. The combined air conditioning unit can provide the function of filtering and purifying the air to ensure the air quality in the laboratory. These are just some application cases of combined air conditioning units in the medical industry. In fact, it is widely used in the medical industry.

The method to determine the failure of the four-way valve of the combined air conditioning unit includes the following steps: 1. The unit starts and the controller starts timing; 2. Determine the operating mode of the unit: if it is cooling mode, go to step 3; if it is heating mode, go to step 5; 3. After the unit runs for 5 minutes, obtain the inner disk temperature Tnp of the indoor heat exchanger through the inner plate temperature sensor;