Forced to rely on the role of the main fan coil fan, when the air is heated by the heater surface, thus strengthening the convective heat exchanger between the radiator and the air, quickly heating the air of the room. Fan coil air conditioning system is the end of the device, which works out constantly recycling unit mounted inside the room where the air duct, the air through the cold water (hot water) after the cooling coil (heating) in order to keep the room temperature constant. Typically, after the new air handling unit into the room to meet the needs of fresh air conditioned room. However, because of this heating method is based only on convection heat transfer, which results in less than optimal indoor comfort level first-class central air conditioning fan coil, it only applies to people staying shorter places, such as: offices and hotels, not for ordinary residential. With the addition of the fan, improve the cost and operating costs, equipment maintenance and management is more complex. Fan coil control scheme to use more local control of central air-conditioning fan coil, divided in two simple control and temperature control. Simple controls: Use direct manual three-speed switch control three-speed fan and start and stop the conversion. Temperature control: STC series thermostat set temperature based on a comparison with the actual test temperature operation, automatic control STV series of electric two / three-way valve opening and closing; three-speed fan conversion. Or directly control the fan speed conversion and three stops, so as to achieve a constant temperature control system through the water or air flow. As of the end of the central air-conditioning fan coil equipment, its quality determines the effect of indoor air conditioning. Performance is mainly to protect send cold (heat) protection, air volume and value than the noise, the condensed water does not leak and electrical, sheet metal design is reasonable, and so on. Fan coil heat exchanger to maintain the unit in order to prevent the use of fan coil and into the outlet pipe scale, respond chilled water for softening; winter running hot water or prohibit the use of steam as a heat source, the temperature of the hot water used should not exceed 60 ℃. If the unit during operation normal water temperature and pressure, and inlet air temperature difference between the unit is too small, should be suspected if the scale is too thick for the internal fan coil due for fan coil inspection and cleaning. During the summer for the first time enabled fan coil units, cold water temperature should be controlled so that the temperature gradually fell designed to avoid immediately pass into the lower temperature of cold water leaving the cabinet and the inlet and outlet condensation dripping phenomenon. During operation, the central air-conditioning fan coil, if the plot between the coil and the central air-conditioning fan coil fins obvious advantages of brand dust, you can use compressed air to blow, if found to have the cracking or corrosion caused by fan coil leaks , should be timely to trap gas welding. Central air-conditioning fan coil of central air conditioning fan coil _ _ Guangzhou liter by liter Swiss Swiss Mechanical and Electrical HVAC Electrical Equipment Factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the Swiss electromechanical and you work up into the brilliant, for a better future!