Seamless cold FCU is a part of the HVAC system for heating, ventilation and air conditioning. FCU chiller using insulated flexible duct application for residential buildings, commercial buildings or industrial buildings.The structure of the FCU simple and are smaller in size compared to the AHU. So FCU what is or fan coil unit is what? Structure FCU and principle of operation of the Fan coil unit out why they follow the content below.

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FCU is what?

FCU stands for Fan coil unit, it is a device that handles the air with small capacity range of about 2kW – 20kW, FCU as well as the AHU is a device that handles the air but has simple structure and small size than

the effect of The FCU chiller is level cold air into the room, eager to have space, not too big. People often use the fan coil unit to replace the AHU when space area restrictions that do not apply the duct AHU, of course, the ability to handle heat, moisture, good will be inferior due to restrictions on the size and structure.

>> See more: Ahu what is? Structure and principle of operation system Ahu

So, with the space or works required, then in addition to the indoor unit FCU mandatory use more processor PAU exterior mounting and duct connection for multiple devices FCU inside.

The texture of FCU :

the Structure of the FCU usually includes the following main parts:

Fan – Fan,
Seamless pipe – coil
dust filter
engine,
Seamless pipe, heat exchanger
Screen inspiration condensate

Fan-cloil-unit

in Addition, the structure FCU also change when equipped with extra drying power – heater. However, in our country, then this department generally will not be popular in the structure FCU.

The type of indoor unit FCU popular nowadays

indoor unit FCU wall,against the wall or ceiling:

Seamless cold FCU can mounting is directly on the wall, put the ceiling or mounted on the ceiling.

Typically, this type of FCU fan coil unit will be suitable casing to protect and conceal the fan coil equipment, grilles and air diffusers.

FCU ceiling duct connection, type concealed wall or concealed ceiling:

If the fan coil unit is installed pussy, it will usually installed in the void of the ceiling or the false ceiling. The equipment air grille, as well as the air diffuser will put in the ceiling leads to the fan coil.

Type fan coil unit is used much as may be of use gaps in the ceiling to circulate air for installation space.

+ Equipment Fan coil unit type Cassette-round, including type 4 direction or type 1 direction according to the type of fan used.

Principle of operation of the FCU chiller

fcu-la-gi

Coil in the fan coil unit will get hot water or cold water comes in from central air conditioning. After that is done, remove heat or heat gain to the air by the heat.

Fan coil can traditionally contain a thermostat inside or is wired to operate controls with controller remote thermostat.

Speed control fan motor fan coil unit to control output heating or cooling as desired.

Some modules FCU chiller taken control his speed by adjusting the taps on the transformer AC power supply for the motor fan.

A number of modular indoor unit FCU is equipped with engine decoupling capacitors permanently adjust the speed level simple desire.

Advantages of the device FCU

Fan coil unit are designed with compact structure, but still surely, thickness only 430mm can provide high air volume. Thanks so suitable for use in the office, the restaurant or the location installation space is limited.
The pipe used for the fan coil unit is usually made of insulation foam, flexible duct insulation helps prevent the formation of condensation.
Heat exchanger efficiency thanks to the copper tube, high quality plate radiator made from aluminum, efficient heat exchanger high. In addition, because the pipe connected with the water are coated coated metal should reduce the deformation during transportation and installation of equipment Fan coil unit.
Like other types of air conditioning, the other on the market, the fan coil unit in the process of operation may also produce noise. However, noise due to equipment FCU clean room often born very small. By the device has been equipped with check static balance and dynamic of the fan motor, the same way heat and sound insulation-high quality.
Fan coil unit is equipped with electric motor good with the drive shaft has low noise level does not require lubrication, minimize maintenance time. The structure consists of rotor and motor parts easy disassembly when cleaning for the heat exchanger.
The filter in clean room equipment FCU better efficiency in comparison with the normal filters should last the lifespan of the product.
No leaks thanks to the tray inspiration water lateral condensation on the heat exchanger medium insulated with the external environment to be water condensation.
Besides, the heat exchanger has a working pressure 2Mpa should stable operation in conditions adverse environments without leaking.
Entertainment column pressure wide with standard ESP from the 0pa-30Pa-60Pa-80Pa-130Pa should fit with many different applications
Fan coil unit allows to toggle a single area as desired can control the temperature where it switches. Or adjust the amount of water to the heat exchanger using a control valve or the rotational speed of the fan. Just to re-adjust the energy saving, very good.
The temperature regulator to use the control valve or the rotational speed of the fan.
Output temperature from one device to the fan coil unit can be set is by relying on the temperature, the air flow on the temperature, air volume and the air was moving through the device.

Disadvantages FCU is :

System activity need a private space
automatic is not high , require supervision of a person who has expertise
maintenance difficult not flexible and when repairs require the highly specialized

On here is the general information about the system FCU, what is the hope to give customers the most useful information.