The article will not talk about all monoblock air conditioners, which, by definition, do not have outdoor units, that is, they are air conditioners without an external unit. This is a wide segment of climatic equipment (windows, rooftops, mobile and stationary monoblocks), like all air conditioners, which serves to maintain the microclimate in the room.
Advantages of stationary monobloc air conditioner
And he has virtues:
- No outdoor unit on the wall of the building.
- For their installation, you do not need to obtain permission to install an outdoor unit. Sometimes this is not possible.
- No freon lines and no need for rolling connections. With poor-quality rolling, freon leakage is possible. The dependence of the quality of installation on the qualifications of installers is excluded.
- Easy installation, almost impossible to mess up.
- Modern design. Large selection of block colors.
- There are models with inflowoutside air. The inflow of a stationary monoblock is equipped with systems of filtration, recuperation and heating of the outside air. But the air supply volume is small (up to 30m3/h).
Pros and cons of installation
Installation of a wall-mounted air conditioner without an external unit is really simple and does not require highly qualified installers. It is necessary to make holes in the wall according to the pattern for attaching the air conditioner plate and cut two holes with a diameter of 160 mm outward. Insert two air channels into them. Install outer grilles.
Channels, patterns and gratings are included in the package of a stationary monoblock - an air conditioner without an outdoor unit. Remarkable is the installation of gratings that does not require high- altitude work. Lattices are simply made flexible. They are gently pushed out, and then unbent, closing the hole. A special cable is tied to the air conditioner body and fixes the open grille
Easy installation is touted as a competitive advantage that saves money on installation work. Simplicity yes, but saving money no!
In the repaired premises, in order not to spoil the interior, the outer holes are cut using the technology of dry diamond drilling (the drill is not cooled by water). Water is not allowed. She will definitely ruin the finish. The cost of two such holes (depending on the thickness and material of the wall) is slightly less in relation to the cost of installing a split system. Yes, and it will not work completely cleanly. Dust is all the samegets into the room no matter how powerful the vacuum cleaner that cleans it.
About the tightness of the wall monoblock
The freon circuit of the air conditioner without an external unit is evacuated and charged at the factory. The circuit is sealed and sealed, freon leakage is impossible. The system does not require maintenance. This is billed as one of the benefits.
In fact, freon leakage will still occur. Freon is very volatile. It goes into any microcracks. And, unless there was a manufacturing defect, these cracks form after years of service.
Then the air conditioner needs to be topped up. But there are no valves for refueling. In this case, the copper tubes are cut and freon is added to the circuit. The quality of this work depends on the qualifications of the specialist.
Maintenance savings
The statement that stationary monoblocks do not require maintenance is not true. Maintenance is not only about controlling the amount of freon. It is required to clean and check the serviceability of heat exchangers and fans. Clean out the drainage system. Check temperature, electrical connections.
Condensate drainage system (drainage system)
The condensate must be drained to the outside through the air pipe of the air conditioner without the outdoor unit. Part of the condensate evaporates. The one that has not evaporated pours out through the grate and can spoil the wall finish. This means that the drainage diversion process cannot be considered resolved.
Here (as with a split) you need to consider a method for draining drainage and not disturbing the wall finish from the outside. That is why includedThe air conditioner without outdoor unit has drain pipes and is designed with a drainage hole.
Quiet operation?
Noise characteristics of wall monoblocks - from 32 dB to 42 dB. For an indoor unit, this is noisy. Modern outdoor units of split systems of similar power work with such acoustic parameters. But in splits, this part is taken out into the street. Therefore, for air conditioners without an external unit, the model range is limited to a cooling capacity of 3.5 kW.
Noise from a model with a higher cooling capacity would not allow them to be used in residential areas. However, the manufacturer claims that the design of the air conditioner is changing, quiet models are appearing.
Price of stationary monoblocks
How much does an air conditioner cost without an external unit. The price of equipment is still high.
Here are examples of prices for inverter models:
Models ON/OFF:
For this money you can buy some very good split systems.
It turns out that a stationary monoblock, often inferior to split systems and other types of air conditioners in terms of technical characteristics, is a good compromise option in the event that there is no permission to install an outdoor unit, it is impossible to mount it or there is no way to forward a pipe line to install other equipment.
