Household air conditioners have the advantage of independence, the economy. The main advantages: 1. Temperature control: Ordinary household air conditioner can adjust the air temperature, but due to structural limitations, the small air volume, air temperature and the temperature difference between the indoor air, so that the indoor temperature distribution is not uniform, poor comfort; and large central air-conditioned, 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 Xuzhou central air conditioning repair parts, 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 sign of bad air, 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 The air is 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, and apartments outside the machine installation location restrictions have central air conditioning, not beautiful. At the same time, one in each room to hang the indoor unit is not the best look at the Xuzhou Industrial air-conditioning maintenance, central air conditioning and 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. What is the air conditioning disease KongDiaoBing conditioning to bring freshness, but also bring a 'disease'. Long-term work in air-conditioned environment to learn, because the air does not flow, the environment does not improve, there will be nasal congestion, dizziness, sneezing, tinnitus, fatigue, memory loss and other symptoms, as well as features associated with allergic skin, such as skin tight hair dry, easy to allergies, skin becomes poor. Such phenomenon is called 'air-conditioning syndrome' or 'air conditioning disease' in modern medicine. Air conditioning disease occurs is because the room closed strong, poor air flow, a small amount of wind, do not open the window a long time, lack of sunlight, the room humidity and temperature conditions become a hotbed of virulence factors, leading to mold, bacteria, viruses and other parasitic microorganisms flourish in bedding, carpets, curtains, furniture. People in such an environment, one is a large number of microbial growth, susceptible to diseases caused by microorganisms, and second, the temperature setting is too low, and the outdoor temperature, and one into an colds. Air conditioning disease symptoms include hot and cold caused due to the physical disease, a disease caused by microorganisms in thermostat and refrigerated to common joint cycling discomfort. Air conditioning disease is often complicated by several symptoms of complex diseases. To prevent air conditioning disease Xuzhou used central air conditioning recovery, household air-conditioning experts remind users: Do not open 24 hours air conditioning can be turned on at night or at work; do not close the window 24 hours; do not adjust the temperature too low, and outdoor temperature should not be less than 7 ℃; carpets, bed sheets, sofa covers, etc. should be regularly cleaned. Central air-conditioning users, the experts stressed: Responding to hotels, restaurants, hospitals and other bedding, appliances, curtains, etc. should be regularly disinfected, try to make sunlight. Q: Under what circumstances air conditioning is beginning to defrost? A: general US Air defrost enter have these types: The first entry conditions: 1, when about 5 minutes into the heating mode or defrost mode, depending on the outside machine coil temperature and the maximum difference between the indoor temperature to identify, finds time of 3 minutes. 2, when the above inner coil temperature and indoor temperature difference between 5 degrees and smaller than 3 minutes, 3, ensure that the compressor accumulated operating time more than 45 minutes, 4, the indoor coil temperature is less than 48 degrees, while meeting the four then entered a flower cream. The second condition: compressor total running time over 45 minutes, and run more than 20 minutes of continuous coil temperature is lower than the indoor temperature is 16 degrees 5 minutes into the defrost state. Third various conditions: compressor cumulative operation more than three hours of continuous operation over 20 minutes coil temperature is less than the indoor temperature is 16 degrees 5 minutes into the defrost state. Fourth various conditions: Outside air enters into overload and outside the fan stops, the outer fan next start continuous operation longer than 10 minutes, but also to ensure that the compressor total running time over 45 minutes or 20 minutes of continuous revolution indoor coil temperature is less than 48 then enter the state of defrosting. Fifth various conditions: outside the fan stops and two hours have not yet entered the defrost, the defrost forced entry. Central air conditioning _ _ Xuzhou Sheng Erda industrial refrigeration, air conditioning maintenance 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!