Review of Bosch air conditioners: error codes, comparison of industrial VRF and household models

Bosch is a leading manufacturer of household and industrial appliances, professional tools. In addition to the standard product line, it is engaged in the manufacture and sale of climatic technology. Especially popular are the Bosch VRF air conditioning systems designed for commercial and industrial use.

Main lines of air conditioners and products

A separate division of Bosch - Thermotechnics is engaged in the development and production of climatic technology. Features of the product line - the use of inverter technology, the choice of types of control, professional service and maintenance. The latter is relevant if repairs are needed or if it is necessary to charge the unit with new refrigerant.

Additional advantages are the choice of the maximum air conditioning power, the optimal set of functions and automation of work. For industrial equipment, the latter is the determining factor. The buyer must follow the rules of maintenance and operation, the rest will be done by the company's specialists - pick up a separate module for comprehensive diagnostics. Many models need to be refueled at the installation site, for which a technician can be called.

VRF air conditioning systems

Designed to create multi-zone climatic complexes. Applications - industrial buildings, commercial and office centers. A combination is possible - for permanent operation, one compartment is used, at maximum load the second.

Features:

• cooling capacity varies from 25.2 to 50 kW;
• the outdoor module is equipped with a five-level oil level control;
• cooling range from -5 ° С to + 48 ° С;
• night mode of operation with a noise level of up to 45 dB.

For the complete set, a Japanese-made compressor is used. Refueling is carried out through a special module, which ensures the maximum speed of service. In the event of a breakdown, it will be dismantled and taken by the service department.

Cassette blocks

Designed for installation in office and retail premises. They are mounted in the ceiling, the working grille does not protrude beyond the main plane. For small rooms, compact models have been developed, the dimensions of which do not exceed the size of a standard ceiling tile.

Operational and technical qualities:

• cooling power - from 1.5 to 14 kW;
• panels are made in the form of honeycombs;
• the maximum difference in height with the outdoor station - 750 mm;
• low noise level.

Until recently, models of the Aeria class were produced, but they were replaced by new lines - C4W and MC4W.

Wall mounted air conditioners

This is a classic split system that can be installed on the inner walls of rooms. The appearance is standard, there is no inverter. The built-in LCD screen has maximum information content - it displays the current operating modes, the air temperature in the room. Judging by the photo, the models are suitable for installation in commercial buildings or for residential premises.

Basic characteristics:

• productivity - from 1.5 to 9 kW;
• there is a tracking function for a remote control device;
• several connection options;
• low-noise outdoor and indoor units.

The split system is installed by professionals only. The maximum permissible length of the line, the difference in height are taken into account.

Channel systems

Designed to create an air conditioning network in industrial and commercial buildings, they are mounted in the ceiling space or in special engineering niches. Installation of an air conditioner is carried out only after agreement on the features of a particular building.

Parameters:

• performance indicators vary from 1.5 to 60 kW;
• you can purchase a duct module with different levels of air pressure - low, medium or high pressure;
• there is a special adapter with a filter and a condensate collection tank.

The latter must be taken for periodic cleaning and maintenance. This should only be done by specialists.

Floor and ceiling air conditioners

The field of application is the creation of the optimal temperature in technical rooms with a constant presence of personnel. Advantages - even distribution of air flow in two directions, modern design. In some cases, they can replace the floor module.

Features:

• cooling power - from 3.6 to 14 kW;
• a powerful fan is installed;
• automatic adjustment of the blinds position;
• relatively small size.

Until recently, the company produced a mobile air conditioner, but due to low demand, production has been discontinued. However, they had a number of advantages - simple installation of an air conditioner, mobility. Perhaps in the future the company will resume production of the series, making adjustments to the design.

Comparison of characteristics of popular models

For analysis, it is recommended to take the most popular product line - wall modules. They have a wide range of performance and are characterized by a modern design. When choosing, the laboriousness of installation is taken into account, how difficult it will be to repair the air conditioner in the event of a breakdown.

Basic selection parameters:

• rated power of operation in cooling and heating mode;
• noise level;
• Energy consumption;
• maximum air flow rate;
• availability of additional functions - sleep mode, night mode, timer.

Price is also an important factor. As an example, the table shows the characteristics of three popular models of the company.

All models use R-410A refrigerant. Therefore, refueling of Bosch air conditioners is possible at home, but with the use of special equipment. A mandatory procedure is the pressure testing of the highways.

Instructions for control panel and air conditioners Bosch

The company has developed several modules to control the functions of the HVAC equipment. A standard remote control for an air conditioner can be used to change operating modes, intensity. Its display shows the air temperature, the activity of certain functions. Also, the device is equipped with a temperature sensor and backlight.

Additionally, integration of such modules and technical solutions is possible:

• BVIM is a system control module for the operation of 256 indoor units. Possibility of installing a workstation on a PC;
• Modbus - designed to convert various control protocols. Can be installed both indoors and outdoors.
• BACnet is another model of the converter designed for connection to a household power supply of 220 V. The recommended field of application is servicing climate modules in hotels and office buildings.

To study the rules of maintenance, you need instructions for air conditioners. Wall-mounted models need periodic cleaning of the air filter, filling with refrigerant. For industrial units, a more detailed instruction has been developed, including recommendations for installation and maintenance. The buyer must know exactly what he must do to maintain the normal condition.

A separate item of expenses is the seasonal preparation of equipment. List of mandatory works - diagnostics, troubleshooting, replacement or repair of individual units.

Bosch air conditioner error codes

When there are malfunctions in the operation of the climatic equipment, certain air conditioner error codes appear on the screen. They indicate the nature of the breakdown and are designed to quickly identify the malfunction and eliminate it. These error codes are primarily needed by the repairman. The company uses a standard breakdown designation.

The user can, by indirect signs, determine the nature of the malfunction:

• Does not turn on. A protective relay has tripped or there is no power supply.
• An unpleasant odor appears. The air filter needs cleaning.
• Condensation and steam. Large difference in temperature between the air in the room and the flow from the blinds.
• Noise in highways. Insufficient refrigerant volume.

The maintenance-free period depends not only on the observance of the operating rules, but also on the correct installation. This work should be done only by specialized organizations. Failure to do so may void the warranty.

User reviews

Despite the popularity of this brand, there are few actual user opinions on the web. Each review indicates the build quality, adaptability to weather conditions. Industrial models have been in operation for years without any serious breakdowns.

Benefits:

• fast cooling;
• a set of additional functions;
• a network of specialized service centers;
• reliability of work.

Identified disadvantages:

• the outer hose is not resistant to temperature extremes;
• small choice of appearance;
• short power cord.

In general, the HVAC equipment of this brand deserves the attention of consumers. In the future, it is possible to expand the range, the appearance of new models.