Fan coil often involves some uncommon parameters when purchasing. These parameters may need to be obtained by combining the established formula with the relevant performance requirements of customers. Usually, customers do not know these parameters very well. Let's take a look at the common parameter terms.
Indoor sensible heat load Qx: indoor sensible heat load includes the cooling load of the enclosure structure, the cooling load generated by indoor lights, the cooling load generated by the heat dissipation of indoor equipment, and the sensible heat load of personnel.
Indoor latent heat load Qq and indoor moisture dissipation W: For general civil buildings, indoor latent heat load and moisture load are mainly latent heat load and moisture dissipation generated by personnel.

Fresh air volume Gw: Fresh air volume plays an important role in improving the air quality of the indoor environment, but it is also an unfavorable factor in increasing building energy consumption. The reasonable determination of fresh air volume in the room should meet:
A, to meet the requirements of human health.
B, supplement the room local exhaust air volume and fan coil to maintain its positive pressure requirements.
Fresh air supply temperature: fresh air supply temperature has an impact on many factors in the fan coil system.
A, the supply air temperature determines the fresh air gram to bear the indoor sensible heat load, the lower the fresh air temperature, the more the load, the corresponding reduction in the amount of fan coil, saving fan coil area.
B. The lower the air supply temperature, the higher the insulation requirements for the air duct, and the one-time investment in insulation will increase.
C. When the air supply temperature is too low, there may also be a sense of discomfort due to low-temperature air sinking, low surface temperature of the air supply device, and condensation may occur if you do not pay attention to it.

There are two main parameters for fan coil selection: refrigeration (heat) and air supply, so there are two methods for selecting fan coil:
(A) Selection of circulating air volume according to practical environment:
The circulating air volume is the room area, and the product of the floor height (behind the ceiling) and the number of air changes in the room is the circulating air volume of the room. The fan coil type can be determined according to the maximum air volume of the fan coil corresponding to the circulating air volume.
(B) Select according to the cooling load required for the room:.
According to the unit area load and room area, you can get the room required cooling load value, the use of room cooling load corresponding to the high-speed air volume of the fan coil can determine the fan coil model.
After the model is determined, it is also necessary to determine the installation method of the fan coil unit, such as surface installation or installation, the air return method, such as bottom return, side return, etc., and the water pipe connection position (left or right).

Example: For general residential and office buildings, the room area is less than 20m2, and FP-3.5 coil can be selected, 25m2 or so FP-5.0,30m2 or so FP-6.3, and 35m2 or so FP-7.1. When the room area is large, multiple fan coil units should be considered. The load per unit area of the room is large. When the noise requirement is not fan coil units, fan coil units with large air volume and cooling capacity can be considered.
The fan coil body is exquisite in structure, compact, strong and durable, beautiful in appearance and noble and elegant. The fan coil body is made of high-quality galvanized sheet casing. The condensate pan is integrally formed by molding process. There are no welds and solder joints. The thermal insulation material conforming to the fire prevention code is integrally connected to the water pan. The fan coil body is small in volume, light in design, easy to install drainage pipes and lines, and the left and right connecting pipes and return air return air modes can be changed at any time to match the site conditions, the unit can be installed in any space, the fan coil has high efficiency, advanced tube expansion technology, ensures the close contact between the copper tube and aluminum foil of the heat exchanger, good heat transfer performance, low noise of the fan coil, reasonable structure design of the fan and airflow, high-quality sound-absorbing and thermal insulation materials, so that the noise of the unit is lower than the national standard 1-3dB(A), low energy consumption of the fan coil, reasonable matching of the fan and the heat exchanger, make the fan electricity more power-saving.
Shandong Xingheng Environmental Technology Group Co., Ltd. is located in Luquantun Development Zone, Dezhou, Shandong Province, the hometown of glass fiber reinforced plastic in China. The company has three-level qualification for construction mechanical and electrical installation engineering, three-level qualification for environmental protection engineering, and safety production license. It is the first in the industry to pass ISO9001 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health management system certification, an axial fan invention patent, a fan utility model patent, EIA, three at the same time waiting for complete procedures