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Air Conditioner disassembly requirements (1) must be removable on a solid brick wall, to prevent vibration and noise increases. (2) if a rectangular room, shall be installed in narrow that wall, so that the indoor air distribution. (3) The wall of the body should be slightly higher to about 2 meters is appropriate. Because indoor air outlet in the lower air inlet temperature difference on the front and make the room up and down too low, air circulation does not reach the upper half of the room. (4) can not be installed in direct sunlight, sunlight will cause the plastic panel aging, will increase the cooling load. (5) indoor unit inlet and outlet can not have barriers, such as wardrobe furniture, so as not to affect the air circulation. (6) should be away from the TV, refrigerator, video recorders and the like household appliances, audio and video so as not to affect the ratings, causing interference and noise. (7) should stay away from this kind of hanging fluorescent lamps, so as not to affect the infrared remote control remote operation. Split air-conditioning must first receive time-shift machine refrigerant recovery method of refrigerant is split; power, let air conditioning and refrigeration. Use a wrench to slowly close the outdoor unit high pressure valve, the outdoor unit's refrigerant no longer flows into the indoor unit. The original residence in the indoor unit refrigerant from the compressor to withdraw the outdoor unit, after about 30 to 60 seconds after the refrigerant can be recovered clean. Then close the outdoor unit low pressure valve, and finally disconnect air conditioning supply. Recovery of refrigerant pay attention to two issues (1) to accurately control the recovery time. Refrigerant recovery time is too short not clean; time is too long, due to high pressure valves are closed, the compressor displacement resistance increases, current increases, severe fever, but no longer circulates refrigerant, the condenser cooling capacity decreased, no cryogenic refrigerant compressor cooling, it is easy to burn out the compressor. Control refrigerant recovery time, there are two methods: ① gauge method: Connect a low table low pressure valve, when gauge is negative and remains unchanged, indicating that the refrigerant has been recovered clean. ② thumb: general recovery of 30 to 60 seconds to make the play to be received, then the compressor due to the load increases, the sound becomes dull. (2) To prevent the low-pressure compressor valve pumped into the air, so the recovery of refrigerant from a closed low pressure valve must act quickly. If the low pressure valve half open half closed state residence time is too long, because this time the low pressure side has been evacuated, the air will take advantage of infiltration. Our strong technical force, has a rich practical experience in design, installation and maintenance services team home air conditioners, central air conditioning, cold storage maintenance and installation. Has many years of residential and commercial air conditioning maintenance experience, has long been engaged in major brand air conditioning sales, installation, sales service of professional and technical personnel. We are familiar with a variety of air-conditioning equipment performance, maintenance and management, with excellent professional skills and services, and receive professional training courses to ensure quality of service. Shaped hotel with a number of large enterprises signed and have a good working relationship between the air-conditioning repair and maintenance contracts with the air-conditioning manufacturers. Our installation, maintenance personnel each year the manufacturers of maintenance training, professional standards, professional high quality, competitive price. He won the praise of the general public as well as enterprises and institutions.