Trade mark MB was engaged in the production of HVAC equipment, office equipment and office equipment. Currently, the company practically does not work, the dealer network and sales offices are closed. The actual manufacturer of MB air conditioners is the Chinese Midea plant. The company made purchases of split systems and duct air conditioners.
The main line of air conditioners and products
The largest sales volume of the manufacturer was in 2005-2006. At this time, contracts were signed with the Moscow government for the installation of HVAC equipment. This determines the relevance of information about the models and features of the service. You can still find offers for the sale of used indoor and outdoor units, manufactured under the brand name "MB".
The most popular air conditioners MB:
- Split system for installation in residential and commercial premises. Three models were proposed with cooling power from 2.6 to 5.3 kW. Inverters in outdoor units were not mounted. The standard design is an indoor unit of a classical form with a convenient indication of parameters. Features - for the most powerful model, the maximum length of highways was 15 m. Usually this figure does not exceed 10 m.
- Duct climate equipment. Five varieties have been developed with power ranging from 5.3 to 17.6 kW. Devices work on cooling, heating and ventilation. There is a night mode with noise reduction. Features - small thickness of the indoor unit - 300 mm. This allows you to install it in standard air ducts or the space between the decorative and the draft ceiling.
Since the development of the design was carried out in the early 2000s. - wall-mounted indoor and outdoor units are designed to use the outdated r22 refrigerant. Whether it can be replaced without compromising performance is unknown.
During installation, problems arose - the connection diagram of the switching blocks of the outdoor and indoor units differs from the actual data. This point needs to be clarified in advance with the former owner, if a used model is purchased.
Comparison of the characteristics of popular models
The MB company specializes in split systems for various types of premises. When choosing a specific model, you need to consider the features of installation and further maintenance. The user manual describes in detail the basic characteristics, installation and repair rules. The problem is that finding the instruction is problematic.
Therefore, we suggest that you familiarize yourself with the basic parameters of wall-mounted climate equipment:
- Determine the required power. It depends on the area of the room. For a standard ceiling height of 2.75 m, the relation applies - 1 kW of power is needed per 10 m² of area.
- The presence of heating and ventilation. In the first case, the minimum permissible value of the air temperature in the street must be taken into account. For these models, it is -16 ° C.
- Range of adjustable power. For cooling - from + 17 ° С to + 30 ° С.
- The length of the track between the blocks. This is necessary to determine the installation location.
- Ability to activate sleep mode or Turbo. In the first case, the noise level will be minimal, the second is necessary for operational cooling of the room.
- Dimensions of the outdoor and indoor units.
The latter is necessary so that the installation of the air conditioner is carried out according to the manufacturer's recommendations. Otherwise, there will be no guarantee of normal operation.
The table shows the comparative characteristics of the company's popular wall-mounted models.
| Model | 2,6SH-R2 | 3,5SH-R2 | 5,3SH-R2 |
| Cooling / heating power | 2,6/2,9 | 3,5/3,8 | 5,3/5,9 |
| Power consumption | 0,96/0,98 | 1,3/1,3 | 1,92/1,98 |
| Air performance | 520 | 540 | 1160 |
| The length of the tracks between the blocks | 10 | 10 | 15 |
| Indoor Unit Dimensions | 70*53,5*23,5 | 78*54*25 | 78*54*25 |
| Noise level | 23 | 28 | 31 |
| Price | 12500 | 14700 | 17800 |
The table shows the last known price for the model. Second-hand cost is 10-15% lower, depending on the degree of wear and the actual condition of the blocks.
The advantage is a wide range of operating temperatures. The manufacturer guaranteed normal operation at a temperature of outdoor air up to -16 ° C.
Instructions for the control panel and air conditioners MB
Changing the operating parameters of HVAC equipment is possible in two ways - using the remote control and directly on the indoor unit. For the first option, a functional remote control for the air conditioner was developed. Features - buttons for switching modes are hidden under the pull-out panel. This is to minimize the chance of accidental clicking. The buttons for changing the intensity of heating or cooling are located under the LCD display.
The instructions for air conditioners contain such information about the remote control:
- the ability to activate and deactivate the indoor unit;
- change in the power of heating and cooling the room;
- sleep mode activation;
- a change in the angle of the air flow direction due to the inclination of the blinds;
- off timer settings.
The LCD displays the current operating parameters. The instruction contains an explanation of the icons.
Basic service rules:
- you need to clean the air filter at least once a year;
- control the amount of refrigerant;
- when the temperature drops below the critical temperature, the outdoor unit cannot be switched on.
It is recommended to do a comprehensive check before each season. For this, specialized specialists are invited who, using special equipment, check the condition of the outdoor and indoor units.
Error codes for air conditioners MB
In the event of malfunctions or breakdowns in the operation of HVAC equipment, the alert option is activated. Error codes that indicate the nature of the failure are displayed. This will help the specialist remotely determine the degree of failure to prepare for the repair.
The main causes of breakdowns:
- The appearance of a leak. This is due to the skewness of the indoor unit.
- Damage to the compressor. Occurs due to loss of tightness in the lines or incorrect setting of the refrigerant pressure level in the circuits.
- Failure of temperature sensors.
- Poor air supply. The air filter was not cleaned in a timely manner.
- The indoor unit does not turn on. A common cause is power outages or a protective relay.
If these problems occur, consult a specialist. Best of all - call them for a comprehensive diagnosis and repair. Attempts at self-recovery can exacerbate the situation.
User reviews
Due to the long absence of models from this manufacturer, it is difficult to find objective customer reviews on sale. Most of the information about the work and the specifics of the service relates to used equipment and is discussed by specialized specialists.
Based on these data, the following advantages can be distinguished:
- reliability of work;
- simple maintenance;
- functioning at a low temperature outside;
- length of highways.
The disadvantages include:
- use of an obsolete type of refrigerant;
- lack of service centers;
- remote control without temperature sensor and backlight.
The main problem is difficulties with repair and maintenance. If the company does not resume sales of these models, after a while they will disappear from the secondary market for HVAC equipment.
