The fan coil should be installed on the ground or hidden according to the specific conditions and decoration requirements of the room. The installation location should be determined as follows: the vertical unit is usually placed under the window sill of the outer wall, the horizontal unit is hung on the upper part of the room, and the wall unit is hung on the wall. Above, the column unit is reliably placed on the ground or partition wall, and the cassette box is embedded in the ceiling.
The surface-mounted unit is placed directly indoors without decoration, but the unit with the same appearance color as the room color should be selected. The hidden unit should be equipped with an air outlet compatible with the building decoration and an air outlet at the return air filter. There should also be detachable or openable maintenance ports in the building decoration to facilitate the disassembly and maintenance of the fan and motor of the equipment and the cleaning of the air heat exchanger.
The inlet and outlet pipes of the radiator are arranged below the radiator, and there is no inlet pipe or outlet pipe on the side. The center distance between the inlet and outlet pipes is 120MM, and the error is not more than ± 5MM.
The radiator is a high-quality fan coil cold-rolled low-carbon steel pipe radiator. The room is of oval tube double stack type. The water inlet must reach 15 ㎜. The radiator pipe shall not be less than one layer, which is resistant to concentrated acid, alkali and high temperature. The construction process, practice and inspection report of the inner cavity protective layer are provided.
The thread of the radiator pipe interface should meet the requirements, the thread should be intact, and each group of radiators is set to manually run one wind.
Radiator welding should meet the requirements, the weld should be straight, uniform, neat, beautiful, no cracks, pores, defects, such as penetration and burn through, spot welding points should be uniform and adjacent, the distance between the welding points should not exceed 40MM, the welding points must not have burn through and other defects, heat pipe and water pipe must be firmly welded together.

The advantages and disadvantages of fan coil and radiator.
Fan coil advantages.
1. Wall-mounted fan coils are all compact surface-mounted units with good appearance and are directly hung on the wall. Box-type (ceiling embedded) units, more beautiful air inlets, and the air outlet of the fan coil is exposed Under the ceiling, the fan, motor and coil are placed on the ceiling, belonging to a semi-surface-mounted unit. The surface-mounted unit has an exquisite shell with built-in air inlet and outlet, the housing of the hidden unit is usually made of galvanized steel.
2. Eliminate indoor harmful gases and concentrated heat and humidity, CO2 in comfortable air-conditioned rooms and peculiar smell in bathrooms, toxic, odors and other harmful gases produced by process air-conditioning production workshops, and local parts that emit a lot of heat and moisture, so as to obtain a good indoor air environment.

Bad.
1, the inlet cold water temperature of the fan coil should not be lower than 5 ℃, otherwise it may cause condensation, the inlet hot water temperature should not be higher than 80 ℃ (usually 60 ℃), otherwise it may cause the unit heat exchanger, copper pipe corrosion.
2. The fan coil unit is only used as a comfort air conditioner.

Advantages of the radiator.
1. The heat dissipation effect is good. The biggest feature of the fan coil embedded radiator is that the heat dissipation effect is 30% higher than that of the traditional cast iron radiator.
2. The quality is very stable, and the quality of the plug-in radiator is more stable than the traditional cast iron radiator.

Disadvantages:
1, water heating floor takes up more floor height, water floor heating floor structure: insulation layer, heating layer, heat storage layer, insulation layer is usually called insulation board, heating layer is heating pipe, heat storage layer is cement layer, regardless of the floor or floor tile height, floor heating floor space occupied is about 5.5cm.
2. The radiator water supply pipe is usually buried underground, but the pipe is directly buried in the concrete and does not directly occupy the ground height.
3, the radiator heating faster, when the water floor heating starts heating, first need to heat the cement layer above the hot water pipe, and then heat the floor, and then the floor heating air, from open to reach the expected temperature takes a long time, the radiator terminal does not need to heat the cement layer, on the floor, the indoor temperature rises faster for the first time.
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