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HC HVAC & R Network Residential central air-conditioning now there are three forms, namely the air - the air pipe machine, air - water, household machines, multi-line and cell concentration of central air conditioning. Advantages and disadvantages of three forms, the future direction of development of residential central air conditioning is inexpensive and quality, health Environmental protection , Stable performance, convenient control, high intelligence. With the economic development and people's living standard, people live and live and work Environment The increasingly high demand for the improvement of living conditions corresponding to promote residential central air conditioning industry's rapid development. In 2001 the market demand for residential central air conditioning is about 10 million units, the output value of 40 billion yuan. According to authorities is expected by 2006, residential central air conditioning will account for 10% of the domestic air conditioner market. 1. Residential central air conditioning Commonly used in residential central air conditioning the following ways: residential central air conditioning, district cooling and multi-line and cell Heating . 1.1 residential central air-conditioning Residential central air conditioning in the form of many on the market today, there are two commonly used: a small air - water Heat Pump Outdoor unit, indoor coil with a few units. Coil volume determined according to the number of rooms. Coil in the form of personal preferences and Decoration Requirements and can meet the individual requirements, can solve the problem of fresh air. The large air-cooled heat pump models and basically the same principle, technology is relatively mature, and combined with the characteristics of the family made use of a number of improvements: the expansion tank and all the built-in cold water pump to increase the auxiliary electric heating, there are many forms for control user choice, many products are used PLC (programmable controller) control, the user simply technical staff under the guidance of some of the parameters configured, the unit is running, energy regulation and self-protection can be controlled by the computer itself is very convenient, but also by telephone or computer network remote control. As the formal system is simple, economical and practical, so now very widely used in China. The drawback is that easy drip mold, need to improve the reliability of the winter run. small air - air heat pump, outdoor built-in Compressor , Condenser and other auxiliary parts, indoor built-in evaporator and expansion valve. According to the size of cooling capacity can be equipped with one or two expansion valve, through the copper tube will be indoor and outdoor unit is connected, the indoor unit connected Air hose The cold (hot) air delivered to each room, so called pipeline machine. Relative to other forms of residential central air conditioning, plumbing machine less the initial investment, if the introduction of fresh air, the air quality will be greatly improved. Air - air heat pump work more stable than air - water heat pump high, the drawback is due to use of air ducts, floors higher, better control of air - water heat pump to facilitate waste of energy. The form used in the United States been more. There is also air conditioning, solar air-conditioning, air temperature, water source heat pumps and other means, for various reasons, do not use too much, but with the improvement of energy structure, the adjustment of national energy policy, these forms of household Central air conditioning will be in all households. We are high quality suppliers, our products such as garage doors remote , car key remote control for oversee buyer. To know more, please visits control duplicator.
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