Year1
- 风量：
- 850m3/h
- 制冷量：
- 4500w
- 制热量：
- 6750w
' , The air supply volume of the fan coil unit is approximately ~/less than the outlet static pressure (the outlet static pressure is greater than 3, which is a high static pressure type).
' , 3. The selection of unit specifications should be determined by factors such as room cooling and heating load and the heat-humidity ratio of the air
' , ) When the fresh air and room air parameters have the same enthalpy, the fan coil unit only bears the burden The cooling and heating loads generated inside the building envelope and the room
' , ) When the fresh air enthalpy is greater or smaller than the room air enthalpy, the fan coil unit should add or deduct part of the fresh air cooling and heating loads
', 3) When the absolute moisture content of the fresh air is lower than the moisture content of the room air and can fully bear the room's moisture load, the fan coil can only bear the room's sensible heat load and should be configured according to dry working conditions
' , ) When the room's sensible heat load accounts for a large proportion, the air volume of the fan coil unit should be checked through sensible heat balance calculation.
' , _ - b(, , , .) r:b..
For double-pipe water systems (applicable to air-conditioning systems that perform heating or cooling conversion only by season or only by air-conditioning zone ) fan coil unit is equipped with only one set of coils, and is a model for both winter and summer heating/cooling. For the fan coil unit of the four-pipe water system (suitable for air conditioning systems with frequent switching of heating/cooling), a combined model with two sets of heating and cooling coils should be configured.
', . For low temperature and cold storage air conditioning systems, large temperature difference units should be selected.
' , . At present, the fan coil unit has the following control types
' , ) with a three-speed selector switch, which can be switched between winter and summer. The room temperature controller is linked to the electric valve of the waterway to implement automatic control< br/> ' , ) With a three-speed selector switch, it can switch between winter and summer. The room temperature controller is used to start and stop the fan to implement semi-automatic control
' , 3) Only with a three-speed selector switch, it can be controlled manually.
' , ) Stepless fan speed control.
' ,
' , . When selecting products, attention should be paid to three issues: noise, condensation and the quality of the motor used. This is an item with many quality problems in current random inspections. . The marking methods of fan coil units at home and abroad are different, and the design and selection should be paid attention to and distinguished.
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