First, the structural characteristics of a fan coil. Delicate structure, beautiful appearance product structure of all high-quality galvanized steel, sound-absorbing insulation materials selected, configured before the song wind vane wheel, window-type aluminum fin coils and galvanized corrosion insulation and other water tray. 2. Design features wind wheel, low speed, small size, light weight, strength, and can be easily arranged anywhere. 3. High efficiency coil made of high quality and efficient copper and aluminum windows type cooling fins, the fins by mechanical pipe up to ensure close contact with the brass, play the best results, products factory rigorous testing, and by pressure leak test (leak pressure 2.4kg / cm2), to ensure the quality and performance of the product. 4. Less water loss forged brass head set, so that a uniform flow smoothly, the outlet vent knob set, can easily exhaust air inside the machine. 5. Electricity province, low noise, long life using new technology research and production of dedicated fan motor shaft quenched with hard chrome special treatment, so that the shaft never deformation, no rust. Using high quality oil-bearing, can automatically lubricate without refueling, rotation, low noise, low input power. Galvanized wind wheel configuration, the static and dynamic balance adjustment, a handsome, good air effect, low noise, service life more than a decade. Overall noise below the national standard. Third, the main features of a fan coil Greider. Safe, reliable, long life: A. Each cooler has twice 2.4MPa pressure test, 100% inspection to meet refrigeration (hot) water system working pressure requirements of 1.0MPa. B. Three-speed low-noise motor capacitor run motor, with imported high-precision low noise bearings, use without the user to add lubricant life up to 42,000 hours, the motor shaft with a special treatment, never rust. Maintenance is simple. C. Forming a condensate water from molded stretch, no welds, the surface spray treatment, to prevent condensate water corrosion, the outer surface of the insulation board pasted, so the fan coil water leakage, condensation and other undesirable phenomena do not occur . D. Insulation materials used flame retardant closed cell polyurethane insulation board to prevent human factors of fire accidents. 2, high efficiency heat exchanger cooler, power consumption: A. cooler full of high quality vacuum annealing seamless soft brass and aluminum fins made of high quality, imported from the United States dedicated heat processing equipment, the machinery up the tube, so that tubes with aluminum fins are linked closely to ensure that the high heat transfer efficiency cooler; the introduction of US imports of automatic welding machine, effectively ensure the quality of welding, so that the coil is not under the pressure of 2.4MPa leaking. B. switch unit has a third gear speed can be adjusted according to the needs of the wind, to regulate cold (hot) the amount of purpose, thus saving energy. 3, air volume, low noise: A. galvanized steel fan for efficient small, low noise centrifugal fan, using ultra-wide galvanized steel and galvanized steel spiral leafy centrifugal wind wheel. Wind turbine are strictly static and dynamic balance test, make sure the fan vibration, low noise; while wind wheel and the motor may have a variety of matching, to meet a variety of fan coil air volume requirements. B. low-noise fan coil motor capacitor-run three-speed motor, low noise oil with imported high-precision bearings, to ensure the normal operation of more than 42,000 hours. Overcome the sliding bearing due to wear and tear caused by the operation of the process unit vibration and noise and other undesirable phenomena. Fourth, the selection of a fan coil superiority. Motor selection Changzhou motor plant production dedicated fan coil motor, low noise, third gear speed. 2. He Qi, Chifeng selection brass Copper Company produces high-quality copper, reserve pressure 40 kg / cm2. Fifth, the superiority of a fan coil molding process. Cooler with mechanical pipe up, the second punch, double flange forming process, with compact, fast molding, high efficiency. 2. Catchment plate with molded forming a structure, and after galvanized, corrosion resistance, long life. 3. After mechanical stamping tight shell structure. Six, product design, manufacturing, test performance standards (GB / T19232-2003) "fan coil units" JB9063-1999 "room fan coil air conditioner safety requirements" GB755-2000 "rotating electrical machines" 1 unit selection The main control parameters rated air volume, export static pressure, input power, rated cooling capacity, rated for heat, noise, water resistance and so on. 2. vertical surface mounted fan coil air fan coil units is about 250 ~ 2500m / h, exit static pressure is less than 100Pa (exit static pressure greater than 30Pa for high static pressure type). 3. The selection of the unit should be room specifications cold, heat and air heat and moisture loads than other factors to determine: 1) if the fresh air and room air enthalpy parameters, fan coil units only burden the cold room envelope and internally generated, heat load; 2) When a new air enthalpy value is greater than or less than the room air enthalpy, fan coil units should be added or deducted part of the new air-cooled heat load; 3) when the absolute moisture content of the fresh air is below room air moisture amount, when the full burden of the room can be wet load, fan coil units affordable room only sensible heat load, should be configured according to the dry conditions; 4) When the room account for a large proportion of the sensible heat load, should adopt sensible heat balance calculations, checking fan wind coil unit. 4. For dual control water system (applicable only on a seasonal basis or only by air-conditioned area heating or cooling air conditioning system conversion) of the fan coil units, only one set of coil configuration, winter heating / cooling dual-purpose machine type. For the four control water system (for heating / cooling air conditioning system frequently conversion) of fan coil units, heating and cooling should configure two coils combined models. 7. The low temperature storage air conditioning system should be used in a large temperature difference unit. 8. Currently, fan coil units have the following control types: 1) with a three-speed selection switch, winter, summer transition temperature controller linked via waterways electric valves, implement automatic control; 2) with a three-speed selection switch, winter and summer transition temperature controller linked via fan-OFF, implement semi-automatic control; 3) with only a three-speed selector switch, the implementation of manual control. 4) variable speed fan control. According to the energy efficiency standards should be used in combination electric thermostatic valve and third gear speed control mode. 9. selected products, should pay attention to the noise, condensation and equipped with a motor quality three questions. It is currently sampling, quality problems more projects. 10. The fan coil units abroad labeling method is different, and the difference between the design selection should pay attention to. 2 construction, installation of water at the entrance points 1. Unit shall be fitted with a filter. In a dry pipe system flushing coolant water when sewage allowed through the coil. The highest point of the coil should be set to take over the exhaust, the lowest point of discharge devices should be located. 2. condensate discharge pipe fan coil units must have a certain slope, should ensure that water does not drip pan. 3. Install fan coil units can be found in the National Building Standard Design Atlas 01K403 "fan coil installation."