What are multi-zone air conditioning systems? In fact, these are temperature control devices that are used indoors. The difference from conventional split systems lies in the presence of one control unit. Freon in this case is in a single highway. The outdoor unit is most often installed on the roof of the building.
A splitter is used to connect the air conditioners. A disadvantage of devices of this type is their high cost. However, it should be noted that the models have a high coefficient of efficiency. To understand the multi-zone devices in more detail, you need to consider their scheme.
Multizone air conditioning system: scheme
The multizone system includes one outdoor unit, which is installed with a powerful fan. The compressor for it is selected high-frequency type. The interconnect cable moves away from the power supply. A network converter is used to control the system. Modules in multizone systems use different frequencies.
Indoor units are connected to the highway. Additionally, the scheme of the multizone system includes remotes for control. The signal is then fed to the central control unit. To adjust the temperature, conventional infrared remote controls are used. The expander is connected via a common trunk. To control freon, an external valve is used.
How does the system work?
Multizone central air conditioning systems operate by supplying freon on a common highway. The air is circulated by a fan located in the outdoor unit. To supply voltage to the device, there is a compressor that is controlled by a network converter.
It is also worth noting that there are splitters in the circuit. They are responsible for individual indoor units that are connected to a common system. The central module controls the power supply of the equipment. To adjust the temperature in the rooms, a remote control is used, from which signals are sent to the central unit, which are subsequently processed.
Mounting Model
Installation of a multi-zone air conditioning system in a residential building takes a lot of time. The external unit is usually placed on the roof of the room. The interconnect cable may be installed on the clips. At the same time, the power supply unit with the expander must be near the module. Indoor units may only be installed through splitters. For this you will have to lay additional networks. To fix the indoor unit, racks are installed on the wall. Remote valves should be located behind the splitters.
Reviews on devices for two indoor units
Two-zone multizone air conditioning systems receive positive feedback from customers. If you believe consumers, then modern models are able to easily maintain the temperature in the house with an area of up to 150 square meters. meters. The cooling coefficient of the modifications reaches 10 BTU.
It is also worth noting that there are many devices with filters on the market that do not dry the air. The energy consumption index for multizone systems of this type does not exceed 340 watts. Dehumidifiers are used with and without a control unit. The installation height of the trunk from different manufacturers may vary. The efficiency coefficient for systems of this type starts at 80%.
Devices with three indoor units
Central air conditioning systems for three indoor units are usually installed with several modules. Filters in devices use different protection classes. Modern models are distinguished not only by a high coefficient of efficiency, but also by a powerful fan. Compressors are applied on 2, or 5 kW. At the same time, their working frequency is 45 Hz.
Many air conditioning systems are manufactured with protected highways. Distributors are installed, as a rule, with control units. The noise level of the models is about 75 dB. To control the temperature, infrared remotes are often used. Sensors in multizone systems use an integrated type. Power supplies are available at 230 V. Many buyers consider these devices to be effective, but they are expensive.
Five Block Systems
Five-block multizone air conditioning system is characterized by high power. Description of devices should start with a listing of indicators. They have an efficiency ratio of 85%. It is also worth noting that the models have several modules. Distributors can be installed with or without converters. Some experts say that the models are difficult to install.
Each indoor unit needs a separate expander. The service area of the devices is 120 cubic meters. meters per hour. Filters for models are used with protection systems. There are many modifications of the multi-zone type on the market with built-in sensors. The cooling capacity parameter starts at 35 BTU. Fans are used in different diameters. In this case, much depends on the power of the equipment.
VRV Plus Technology Reviews
Systems with VRV Plus technology are very popular. As a rule, modifications to two indoor units are presented on the market. Their cooling capacity starts at 30 BTU. Many models are able to boast of quality blocks that work in an economical mode. Modules in devices are used with blockers.
Models are great for prefabricated houses. Power supplies are used at 200 V, and the operating frequency is on average 40 c. Fans are used with powerful compressors. Coolers in this case are controlled by the central unit. Highways are allowed to be installed at a height of about two meters. Many models run on multiple modules.
Models with VRF Technology
A multi-zone air conditioning system with VRF technology is available with two or three units. The performance indicator of the models is very high. If you believe customer reviews, the devices are easy to manage. An expander is required to connect the units. Modules in systems are used only wired type. Power supplies for them are selected at 220 V. The operating frequency of multizonal systems is an average of 45 Hz. Fans typically operate directly through compressors. The optimal height of the indoor unit is 1.8 meters.
Some air conditioning systems are made with sensors. They operate from modules that are connected to a central control unit. The outdoor unit of the multi-zone air conditioning system can be installed on the roof. Models of this type are great for storage rooms. Their rated power is 4 kW. Highways are used with and without an ionizer. Dehumidifiers are installed mainly near the module.
3 kW models
A 3 kW multi-zone air conditioning system is produced, as a rule, with three indoor units. The average cooling area is about 220 square meters. meters. Some modifications have several compressors. Indoor units are installed behind expanders. Models with a 200 W power supply are capable of supporting the operating frequency at around 45 Hz. They use a pulse converter. Freon can be applied in different classes.
Modern air conditioning systems operate from a channel module. In this case, the temperature is set directly through the remote control. Installation of the line is carried out using clamps. Indoor units may be installed at a low height. In this beam, much depends on the manufacturer of the system.
5 kW devices
5 kW multi-zone air conditioning system has a high cooling capacity parameter. Expanders in this case are only suitable with adapters. If we talk about the shortcomings, then you should remember about the high noise level. Also, models of this type do not allow a high drop in the highway. The spring block is under heavy load. It is also worth noting that the sensors in the models are used only built-in type.
If we consider devices with three indoor units, then their efficiency coefficient does not exceed 65%. Many models are used with contact expanders, which are controlled by modules. Dehumidifiers are very rare. The heat output is at 35 BTU. There are many air conditioning systems on the market that can operate at a frequency of 55 Hz, and power supplies for them are selected at 200 V. The energy consumption indicator for multi-zone models is usually in the region of 340 watts.
10 kW models
Multizone conditioning system for 10 kW can operate on several modules. If you believe customer reviews, the models are great for office space. The refrigeration coefficient is 30 BTU. The frequency of the systems is about 45 Hz. Some models are made by two compressors. Thus, a powerful fan is installed in the indoor unit.
Ionizers are found only in modern versions. The noise level they have is 60 dB. If we consider devices in three blocks, then they have two modules. The splitters are installed with or without expanders. Indoor units are often made with filters. Remote valves may be mounted through the central line. For the removal of freon, an interblock type cable is used.