First, the installation method of Haier central air conditioning
1. Internal machine in place: The construction team enters the site to hoist the internal machine, and the following problems can be avoided as long as two points are noted here. Answer: The distance between the internal machine and the roof shall not be less than 1cm, so as to avoid the * * * vibration between the machine and the top of the wall during operation. B: When hoisting the inner machine, the slope of five thousandths should be considered, and the side connected with the condensed water is slightly lower to avoid the condensed water from being discharged.
2. Installation of refrigerant copper tube: The refrigerant copper tube can be installed after the indoor unit is installed, which is the most important link in the installation process of central air conditioning. Answer: The welding point should be the joint of copper tube and bifurcated tube, and there is no copper tube to copper tube welding. B: During the welding process, nitrogen must be injected into the copper tube (nitrogen-filled welding process) so that there is no air in the copper tube, avoiding the occurrence of welding and coking on the inner wall, which will lead to the failure of the compressor in formal operation. C: After welding, use high-pressure nitrogen to blow dust in the pipe and keep the copper pipe clean.
3. Nitrogen filling and pressure keeping: This is a pressure test that must be carried out on the copper tube after welding. The copper tube is filled with nitrogen at a certain pressure to maintain the pressure, and the general pressure test time is 24 hours. Special note: When using R4 10 refrigerant, the pressure in the pipe should be kept at 40 kg, and R22 refrigerant should be kept at 20 kg. Nitrogen is an inert gas, and its expansion coefficient is very small, so it hardly changes pressure due to thermal expansion and cold contraction. If the pressure gauge drops during the test, check whether there is any problem with the welding of the refrigerant pipe.
Second, the price of Haier central air conditioning
1, Haier KFR-35GW/06ZEA22 reference price: about 2899 yuan. Product features: patented RCD formaldehyde decomposition technology, patented RCD formaldehyde decomposition technology in the industry, can effectively remove formaldehyde, in addition to formaldehyde gas supply. Caring for family health, the intelligent PMV human comfort control system has a unique human comfort database, intelligently and automatically adjusts the comfort environment, and intelligently sweeps the wind around the three-dimensional wind technology to realize 12 meters long-distance air supply, which is more uniform and comfortable.
2. Haier KFC -26GW/06NBB 13 Reference price: 2599 yuan. Product features: Aerospace ESQ silent technology (silent) Emperor Zun cooperated with China Institute of Science and Technology and China Aerodynamics Research and Development Institute to apply Shenshi aerospace pneumatic technology to the air conditioning field for the first time. Aerospace ESQ ultra-quiet technology subverts industry limits and enjoys quiet and comfort. The intelligent PMV human comfort control system has a unique human comfort database, which can intelligently and automatically adjust the comfort environment. Under the intelligent operation mode, the air conditioner will automatically select the cooling, heating, dehumidification or air supply mode according to the set temperature, which is comfortable and comfortable.
The above article is the installation method and price of Haier central air conditioning. It is a product with many brands and high cost performance. When people buy Haier air conditioners, they must go to a regular Haier store to buy them.