Commercial central air conditioner equipment has never had a relatively clear concept and is usually considered a sub-industry of the refrigeration and air conditioning market. At present, commercial central air conditioning equipment has generally adopted DC frequency conversion leading technology and R410A environmentally friendly refrigerant, and related products meet the testing energy efficiency standards.
Commercial central air conditioners are mainly divided into three categories:
1, variable frequency multi-connection unit
variable frequency multi-training unit is what we usually call VRV system , commonly known as "one tow multiple". Commercial central air conditioning equipment frequency conversion multi-connector unit is directly connected to the indoor unit. It uses refrigerant as the main heat exchange medium. All indoor pipelines are made of copper pipes, and all the pipelines are refrigerant. The cooling speed is relatively fast, and it can be controlled independently in each room, so the temperature control is very accurate.
2, air duct unit
air duct unit is centrally refrigerated by chiller , mixing the fresh air and return air to cool or heat it, and then transport it to each room through the air supply duct installed in the indoor unit. Commercial central air conditioning equipment This unit cannot control the temperature of each room separately. Once it is turned on, it will be turned on regardless of other rooms, and the energy consumption is relatively high. If you want to control it independently, you need to increase the cost. It is generally only applicable to large shopping malls, such as public places where all of them need to be opened at the same time.
3, Water system unit
Water system unit is commonly used for commercial central air conditioners and is also a type of air conditioner with good performance. The central air conditioner unit of the water system uses cooling water tower to cool the refrigerant in the condenser , and then uses the cooling capacity in the evaporator to reduce the water temperature. The cooled water is transported to the fan coil in the indoor , and the indoor pipelines of the water system unit are all water pipes. The advantage of water system units is that they have high comfort, and the air outlet temperature is not as harsh as multi-connection units and is relatively soft. Each room can be controlled independently, and it is much more energy-saving than multi-connection units.
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