The reason why the cassette fan coil cannot be started.
1. The power supply is not sent. Confirm that the power supply has been sent.
2. External circuit disconnection confirms that the power supply and control circuits are intact.
3. Electrical wiring errors are checked according to the instructions on the wiring nameplate.
4. The line metal connector is not in good contact with the metal pressure plate of the wiring base to rewire.
5. Loosen the wiring plug of the motor on the wiring base and insert the plug according to the instructions of the wiring nameplate.
6. Contact the after-sales department with the open circuit of the motor lead wire, and it is not allowed to disassemble and inspect the motor without authorization.
7. The motor capacitor wiring is open or the capacitor is damaged. The internal winding of the motor is open.

Card fan coil features
The cassette fan coil has an ABS panel, and the surface of the ordinary fan coil is only galvanized sheet.
The main advantages of the card is beautiful appearance, containing a sound-absorbing sponge, the noise is relatively low, do not need other accessories, such as air outlets, metal hoses and the like. Like the ordinary fan coil, the cassette fan coil is used in conjunction with the chiller to provide cold or heat to the room.
The cassette fan coil belongs to the surface mounted fan coil fan coil, but it can be embedded in the ceiling, so it does not occupy space, and beautiful.
What is the reason for the small air volume of the card fan coil.
The cassette fan coil is also called ceiling fan coil. During installation, attention must be paid to fixing the stable line smoothly.

1. Check whether the motor capacitor is damaged and whether the line is connected incorrectly.
2. Determine whether the capacitor specification is appropriate, and replace the large capacitor when necessary (for example, 1μF is replaced by 1.5 μF and 1.5μF is replaced by 2μF).
3. Determine whether the wiring of the third-speed power cord of the motor is correct and whether there is any change.

Cassette fan coil installation environment static is different from other fan coil.
From the installation environment to distinguish the fan coil, the card fan coil from the installation method, can be divided into horizontal, vertical, card type, surface mounted fan coil.
The working principle of the cassette fan coil is to use the motor power to coordinate the surrounding temperature and humidity. The horizontal concealed fan coil is hidden in the ceiling or the lower part of the overhead floor. The exposed part only has the air supply outlet and the air return outlet, which does not occupy space. The vertical concealed fan coil is hidden in a custom cabinet near the wall or embedded in the wall. The exposed fan coil is hoisted openly and looks more beautiful. The shell is sprayed or painted, it can be installed directly without ceiling, which is suitable for occasions where ceiling cannot be suspended. The card fan coil unit is used for hoisting four-outlet air belt panel, which is suitable for relatively spacious places and the surrounding area is also suitable for decoration.

The use of vertical surface mounted fan coil use characteristics.
The vertical surface-mounted 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 water pan is integrally formed by molding process. There are no welds and solder joints. The thermal insulation material conforming to the fire protection code is integrally connected to the water pan. The fan coil body is small in size, light in design, easy to install drainage pipes and lines.
The vertical open-mounted fan coil has high efficiency and advanced tube expansion technology, which 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 design of the fan and airflow structure, and high-quality sound-absorbing and thermal insulation materials of the fan coil make the noise of the unit lower than the national standard 1-3dB(A), low energy consumption of the fan coil, reasonable matching of the fan and heat exchanger, and adjustable air volume in three gears, so as to save electricity.
The air supply temperature difference and air exchange rate in the fan coil unit are the main factors that determine the accuracy and comfort of the air conditioner. Therefore, ensuring sufficient air volume is a prerequisite for achieving the expected air conditioning effect. The air volume mentioned here refers to the actual air supply volume when the fan coil unit is used, rather than the nominal air volume in the product sample. The nominal air volume must be in the coil without water, with air 14-27 ℃ and fan speed of high grade, for the air volume value measured at 12Pa at the outlet static pressure of the low static pressure compressor unit without air outlet and filter, in actual use, the actual air volume is far lower than the nominal air volume due to the addition of many factors such as return air grille, filter and short air pipe, plus condensation on the surface of fan coil unit, dust accumulation, filter screen blockage, etc. (the author proves through a large number of experiments: generally low by l5-25), due to the obvious reduction of air volume, the air conditioning effect is affected.
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