Central air conditioning host installation considerations

The central air conditioner has an industry standard of seven-point installation of three-point products, which shows the importance of central air-conditioning installed in the entire system. The central air-conditioning installation is mainly divided into three parts: central air-conditioning main unit installation, central air-conditioning indoor unit installation, and central air-conditioning pipe installation.

Central air conditioning host installation notes:

1. The hot air discharged from the outdoor unit has no effect on the neighbors;

2. If there is a strong heat source and other equipment exhaust ports around the location, steam and combustible gas should be contacted to adjust;

3. The outdoor unit should be installed in a well-ventilated position. If there is a short circuit in the airflow, measures should be taken to solve the installation;

4. The influence of the running noise of the external machine on the installation location should be less than the national noise standard: daytime: 55dB (A), morning and evening: 50dB (A), late night: 45dB (A);

5. The front side of the external machine needs 500mm maintenance operation space;

6, the outside machine as far as possible away from the first floor bedroom, living room, but also consider away from the second floor bedroom, study;

7. The distance on the intake side (rear side) is more than 300mm; the distance between the two sides (left and right sides) is more than 150mm; the distance on the front side is more than 500mm; the distance between the machine and the machine side: more than 100mm; Obstruction distance on the top side: more than 1000mm;

Central air conditioning indoor unit installation precautions:

1, it is not recommended to install above the bed, there is noise interference;

2, it is not easy to blow directly to the bed, people are prone to cold wind;

3, can not be attached to the floor, easy to generate vibration with the floor, the general machine is installed 2-3cm from the top;

4. The inner machine is at least 8-10cm away from the rear wall to ensure effective return air space and maintenance space, reducing noise;

5, pay attention to the placement of furniture, to confirm that the return air is not blocked by large furniture, affecting the return air effect;

6, the air conditioner internal machine interface side must ensure 30cm takeover space and maintenance space, otherwise the damage caused by the decoration is far greater than the visual effect of the reserved maintenance space;

7. The distance between the sending and returning air inlets should be no less than 50cm, otherwise the airflow will easily form a short circuit;

8, try to put an end to the side to the side back, the return air duct is strictly prohibited to pass through the bathroom, kitchen room;

9. The position of the internal machine is closest to the external machine;

10, design the kitchen room as much as possible, but the kitchen room can not be placed separately air conditioning (considering the corrosion of the kitchen fumes on the equipment, etc.);

11, try to avoid the choice of high static pressure machine.

12. When designing, the duct should be as short as possible, and the width of the return duct should not be too small;

The central air-conditioning main unit is much larger than the traditional air-conditioner. Therefore, the central air-conditioning main unit is generally installed on the balcony. Most of the houses now have air-conditioned balconies. If the villa is a high-power central air-conditioning unit, it will generally open a separate area for central air-conditioning. The installation must be at a certain distance from the indoor activity area so as not to affect the rest life. The installation position of the central air-conditioning indoor unit is not very fixed. For ordinary household users, the ceiling is more common in indoor and outdoor.

Nowadays, people's living and consumption levels have been greatly improved with the deepening of economic reforms, and there is a higher pursuit of comfort in life. In addition, with the change of seasons, the climate temperature is also fickle, so the room is installed. A set of air conditioners to regulate temperature and living environment has become a trend. So why do many people choose home central air conditioners when installing air conditioners for their homes or new homes?

Reason one:

The best choice for large, multi-bedroom homes. In recent years, with the warming of the housing industry, two-bedroom, two-bedroom or three-bedroom two-bedroom residences, duplex residences and villas with an area of ​​more than 100 square meters have rapidly increased. This part of the higher-income households has placed higher demands on household air conditioners. However, the general air conditioner is limited by the heating (cold) quantity and structure, can not meet the temperature requirements of multi-bedroom households, and there is no fresh air system, which is easy to cause air-conditioning disease; central air-conditioning is always only due to the huge and complicated facilities. Special items for luxury buildings and high-end hotels and hotels, ordinary users are afraid to pay attention. Therefore, the user group has shifted its line of sight and turned its attention to products that are more suitable for them. Therefore, the family central air-conditioning was born, and quickly entered thousands of households, getting people's unusual favor.

Reason 2:

The living environment can be comfortable and warmer. The modern home central air conditioner can achieve extreme speed adjustment, and the temperature can be adjusted within the shortest time after the user sends out the information. Quiet operation is a major feature of the central air conditioner in the home. It can completely guarantee the user's quiet and comfortable space. Because there is only one outdoor unit, the noise of the outdoor unit is very small, thus achieving the effective mute of the air conditioner. The home central air conditioner also has a super long-distance three-dimensional air supply system, and the air supply can reach 15 meters, which makes the indoor temperature of the residential house evenly uniform. Even in the three rooms and two halls or all areas with an area of ​​more than 200 meters, it is not felt. The existence of temperature difference. Healthy and natural winds also save people who have lived in the city for a long time from the "air conditioning disease". Therefore, consumers choose a lot of home central air-conditioning based on such considerations: the cost of central air-conditioning can be enjoyed with a small fee, why not?

Reason three:

Environmental protection, energy saving and more energy saving. People pay more and more attention to environmental protection and health. The family central air conditioner adopts various advanced environmental health technologies. It is a natural reason for people to be welcomed. It uses the world's advanced frequency conversion technology. The home central air conditioner can guarantee air conditioning in most of the time. The operation is carried out in a low-capacity state, which greatly reduces energy consumption. Since some home central air conditioners can be equipped with one to 16 indoor units, up to 256 indoor units can be centrally controlled. The control system uses advanced intelligent network program control technology, which can be based on the number of indoor units. And the indoor temperature regulation, to achieve the capacity control of the compressor, thus achieving a reasonable allocation of energy consumption. It is also more environmentally friendly and more energy efficient.

Reason four:

Intelligent network control makes it easier to worry. Air conditioners are installed at home, people hope that its performance is good and good, and it is convenient and worry-free to operate. In this regard, some family central air conditioners make people feel excited. In addition to the network regulation that represents high technology, these household central air conditioners It also has a central intelligent network control function, which can perform centralized control and terminal control, avoiding the problem that the remote control cannot be found or the airlock is locked in the room and the air conditioner cannot be controlled. Centralized control is convenient for property management personnel or users to use the computer network for remote and short-range control, and the terminal control function can ensure that users can perform distributed control on an indoor unit, allowing users to use it with ease, which is convenient for life and reach The purpose of energy saving. The soil and water on the surface store 47% of the solar radiation energy. For modern villas, there is a lot of warmth and coolness stored there. The ground-source heat pump central air-conditioning wells are connected to a depth of 100 meters, allowing the hot and cold temperatures to circulate above and below the ground. The most suitable cold and heat demand, through the central air conditioning of the room for the comfort of each household, environmentally friendly energy plus efficient system, can save more than half of the energy. The ground source heat pump central air conditioning system is a guarantee of environmental protection, comfort and quality of life. There is no air conditioner and drain pipe for every household. There is no dripping and noise, enjoy the warmth and coolness, and there is “the tranquil power from the heart”. "The sense of superiority."

As people's quality of life continues to improve and improve, the comfort of refrigeration systems is getting more and more attention. The water system of the home central air conditioner is widely recognized by consumers because of its advantages of comfort, energy saving and quietness. At the same time, how to make the best choice for the use of household central air conditioning, in addition to the reasonable arrangement of the design, there are the following points to be referenced:

First, self-contained units, flexible adjustment. The fan coil is three-speed shifting, and the waterway system can automatically adjust the temperature regulating valve according to the user's room temperature setting, so that each room can independently adjust the room temperature to meet the needs of different air-conditioning customers. When people use it, they can be manually shut down or automatically timed off, and the developer can avoid the one-time investment too large, so that it can be developed in a rolling manner, and different rooms can be opened according to the situation of the customer. This reduces the operating costs of the overall system. The whole system partition control is relatively easy, and can be divided into several areas according to the orientation, floor, use, and use time of the room, and the partition control is performed according to different customer use requirements, thereby avoiding the unreasonable side of the centralized control of the large air duct system.

Second, the fan coiling machine body is small, flexible in layout, convenient to install, and takes up less building space, which is convenient for interior construction. However, according to the different needs of the owners, combined with the design drawings to select a better fan coil application to the actual project, the following points should be fully considered:

1. Checking the amount of cold

Generally, the product is selected according to the calculated cooling load, but it should be noted that different fresh air supply modes may cause the cooling capacity of the fan coil to be different. When the fresh air is directly sent to the room through the external wall, the cooling capacity of the fan coil is not the indoor cooling load + the fresh air cooling load without heat and humidity treatment; when the independent fresh air system is set, the cooling capacity of the fan coil is = indoor Cold load. At present, the products in the market are generally nominal cooling capacity. The actual cooling capacity should be the cooling capacity × the average running time per unit time, that is, changing the running time or air volume will affect the input cooling capacity of the unit. Therefore, the higher the nominal cooling capacity, the better. If the unit is selected only for high cooling capacity, the cooling capacity will be too large, resulting in too low starting rate, reduced air exchange times, increased room temperature gradient, and increased system capacity and equipment. Investment, air conditioning energy consumption increased, air conditioning effect decreased. Therefore, the amount of cooling is only one of the necessary conditions for selecting equipment, and other factors should be taken into account.

2, air volume check

The number of air changes is mainly checked according to the quality requirements of the room. The smaller the temperature difference between the air supply and the more the number of air changes, the better the air quality, the more comfortable it is. Why do some air-conditioned rooms feel odor and suffocation, that is, the air volume check is not handled well. Since the nominal air volume of the fan coil is measured under the condition that the water is not connected to the water and the pressure difference between the air inlet and outlet is zero, there are some unrealistic factors. Therefore, the actual determination of the air volume is the air volume value in this part of the ideal state. After deduction, through empirical calculations, this part of the supplementary air volume should account for 20-30% of the nominal air volume.

The main role of central air conditioning pipeline cleaning and pre-filming:

1. Sterilization: Remove various bacteria and algae from circulating water by adding a bactericidal agent to the circulation system.

2. Slime peeling: Add the stripping agent, peel off the biological slime in the pipeline, and clean the slime by circulation.

3. Chemical cleaning: Add chemical cleaning agent, dispersing agent, clean the floating rust, scale and oil in the pipeline system, disperse and discharge, and reduce to a clean metal surface.

4. Surface pre-film: The pre-filming agent is put into the surface to form a dense polymeric polymer protective film on the metal surface to prevent corrosion.

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