Air conditioning use a long time, there will be a variety of problems, how to identify the lack of refrigeration systems fluorine? Should first start after air conditioners, air conditioning compressor allows continuous operation for half an hour, the following is summed up the problem: 1. From the outdoor unit charge fluoride mouth measured pressure is lower than 0.45MPa. The reason is lack of the refrigerant, resulting in the evaporation pressure drops. 2. dry pipe valve. Touch no clear sense of cool. The reason is the lack of fluoride, lead to the boiling point of the refrigerant within the evaporator reduces the refrigerant temperature increases the valve, the valve's temperature. 3. frost tube valves. The reason is the lack of fluoride, causing fluid tube pressure drop, reducing the boiling point, the valve temperature is below freezing. The outdoor unit exhaust no thermal. The reason is lack of the refrigerant, resulting in condensing pressure and temperature decrease. 5. Open the indoor unit panel, removing the filter, it can be found only a small portion of the evaporator frost. This is insufficient refrigerant cooling area correspondingly reduced results. 6. drain hose drain with little or no drainage. The reason is that the evaporator cooling area is reduced, the area is also reduced condensation, condensation of water is reduced. 7. The outdoor unit gas liquid valve with oil. The reason is that the refrigerant and the refrigerant oil has certain mutual solubility, the refrigerant leak from the oil spill is attached around the leak. Household air conditioners have the advantage of independence, the economy. Its main advantages: 1, temperature control: ordinary household air-conditioning can also regulate the air temperature, air conditioning repair, but because of structural constraints, small air volume, air temperature and room air temperature difference, so that the indoor temperature distribution is not uniform, poor comfort ; while blowing large central air-conditioning, the temperature difference is small, the temperature distribution, the comfort is good. And air conditioning of the kitchen can be achieved. 2, adjust the humidity: household air-conditioners are dehumidifiers, run over time, indoor air dry, skin discomfort. The Beijing area dry climate, central air can be pumped into the fresh air add humidity. 3, the suspension is filtered: dust suspended in the air is one of the worst signs of Xuzhou central air conditioning maintenance of telephone, central air conditioning system with supply and return air system, a large number of cold (warm) air blown from the outlet, turn Each bedroom and living room air sucked back from the return air, return air built with high-efficiency filters, can filter dust. 4, increase fresh air: each person needs 15-18 cubic meters of fresh air per hour, in order to ensure health. Now widely used in household air-conditioner only air temperature regulator, and to improve the air humidity, oxygen content and other indicators of powerlessness. With the increase of the air conditioner running time, indoor air gradually becomes cloudy, easily lead to upper respiratory infections. Filtration and purification of the above relying solely on measures of negative ions and so it is difficult to fundamental change. The most effective way to solve the problem is to replace the fresh air. Home central air conditioning with fresh air replenishing device can be introduced into new wind. 5, increase the aesthetics of the space-saving: home central air-conditioning in a unique position to save space and increase the aesthetics aspect. Now people are no longer confined to the room of requirements Ershiyiting, Sanshiyiting room, split-level room after another and so on. If the first with split air conditioning, more than three out of the machine must be installed, while apartments have outdoor unit installation location restrictions, not beautiful. At the same time, one in each room to hang the indoor unit is not the best looking, and central air conditioning only one outdoor unit, and can choose a variety of styles outlet, combined with the ceiling design, mounted on the roof. Each outlet can be individually controlled, arbitrarily adjust the room temperature. 6, home central air conditioning There are three types: water systems, wind systems and refrigerant system, the user can according to their residential characteristics, matching the different types of home central air conditioning. Baby experts recommend the use of air conditioning taboo parents not to let the baby too dependent air conditioning, because it really will make the child's body temperature regulation function decreased ability to adapt to environmental variation, so parents the most important thing is to grasp the "degree." "Appropriate sweating is beneficial for health, parents do not need to feel the hot weather a baby immediately to open air." In addition, long-term stay in the closed space, bacterial air conditioning heat sink will affect the baby's health. And long-term isolation from the outside environment, hot and cold, more likely to cause "hot cold." If the weather is hot and the baby afraid of heat, love sweating, and there have been hot prickly heat, it can be appropriate to the baby off the air conditioning, but the temperature should be above 28 ℃, and the air conditioning wind to blow up the door to the room Open Xuzhou Hitachi central air conditioning repair, indoor temperature consistent. While regular window ventilation Xuzhou Hisense air conditioning repair phone, keep the air fresh. Also note that the air temperature is moderate, not hot and cold, do not immediately cool down after sweating and so on. Air conditioning maintenance, refrigeration Sheng Erda, Xuzhou Hisense air conditioning repair phone provided by Xuzhou 圣尔达 Refrigeration Electrical Services Limited. Xuzhou 圣尔达 Refrigeration Electrical Services Limited (xzktw.com) strong, credible, Xuzhou in Jiangsu Province of heat, refrigeration and air conditioning equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Sheng Erda refrigeration into the brilliant and you work for a better future!