Learn about central air conditioning system design

What are the components of a central air conditioner? What are their characteristics? The following article will provide some information about the central air conditioning system:

Introduction to the general principle: The central air conditioning system will include one or more central air conditioning units coordinated into a total system that distributes cold to all areas in the building. Central air conditioning uses chilled water through the duct system into the heat exchangers to cool the air.

Central air conditioning system includes:

1. Central air conditioner (Chiller): Is a device that produces cold water through a pipeline system to supply the heat exchanger, installed in air-conditioned spaces to cool the air.

2. Heat exchangers (FAN COIL UNITs – FCUs): These are devices placed at locations that need cooling in the room. The capacity requirement of the heat exchanger must correspond to the area of the room, thus ensuring the cooling factor. Here, cold air is also released from the exchanger, making the air in the room cooler and more comfortable.

3. Cooling tower and water pump: play the role of releasing the heat energy of the condenser (air conditioner) after the air conditioner cools the water in the evaporator.

4. Cold water supply pipe and pump system: Is the system that distributes cold air from the center to the FCU heat exchangers.

5. Cold air distribution piping system: is the water distribution system from the central air conditioner to the FCU heat exchangers.

6. Cold air distribution piping system: is the air system from FCUs through the blowers to the areas that need conditioning.

7. Control system: Is a control system that controls the interoperability of devices in the system.

Call the colors red, blue, yellow, purple the cycles.

• The red cycle is the hot water cycle pumped into the cooling tower to push this heat out into the environment.

• Blue circulation loop: is the refrigerant gas circulation loop in the water chiller cluster

• Purple circulation: is the cold water circulation pumped to AHU, FCU, PAU, PHE….

• The yellow circulation circle is the circulation circle of the air duct system blowing into the air-conditioned room.

– Central air conditioners can be placed on the roof or in the basement technical room, heat exchangers are placed in rooms in the building, to ensure the aesthetics of the ceiling, air conditioning construction units all propose the option of using the cold side as a concealed ceiling air conditioner connected to the air duct, the air is distributed through the air duct to the blowers of the air conditioner connected to the air duct.

– For the central system, the fresh air supply is very simple, through the duct system, installing AHU air mixing equipment to supply fresh air and mix it with the return air of the FCU, AHU.

 

– Due to the water cooling system, the air conditioner operates stably and is less affected by outside temperature.

– The power consumption coefficient depends on the automatic air conditioner operation process, it automatically adjusts the temperature to suit the room temperature, this significantly reduces electricity costs.

– Good performance and long life (> 15 years)

– With a wide range of capacities to choose from, you can choose the machine with the capacity suitable for the type of design project and easily invest in expanding the system.

 If you need advice on design and installation of central air conditioning, please contact our company!

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