The design of the Baxi gas boiler - possible malfunctions. Double-circuit wall-mounted gas Baxi: instructions, installation Power supply diagram Baxi Main For

Wall mounted gas boilers Baxi have literally flooded the Russian heating equipment market over the past decade. This is not surprising. When a potential buyer is faced with a choice: to buy an inexpensive boiler, but unfinished and domestic, or a reliable, but expensive one made in Germany, the choice is often made in favor of Italian manufacturers of gas boilers.

As a rule, they are distinguished by a fairly good price-quality ratio and a developed network Maintenance, easy to find spare parts. Let's consider the most popular brand of gas boilers in Russia, Baxi, reviews of which we can often read on specialized forums, online blogs or on the company's official website.

We will analyze in detail the main models, types, device, specifications wall-mounted (mounted) single-circuit and double-circuit gas boilers Baksi, we will identify their main advantages and disadvantages, and also understand how they differ from each other according to the operating instructions.

Basic models of wall-mounted gas boilers from Baxi

The following models of wall-mounted gas boilers from Baxi are available on our market:

— Baxi Main Four and Baxi Main 5 (fourth and fifth generation of boilers);
— Baxi Four Tech and Baxi Eco 4S;
— Baxi Eco Four and its more compact analogue Baxi Eco Compact;
— Baxi Luna-3 and Luna-3 Comfort with a remote control panel;
— Baxi Nuvola-3 with built-in storage boiler.

Baksi wall-mounted gas boilers differ in the type of exhaust of combustion products and are:

1. Turbocharged gas Baxi boilers With closed camera combustion

A special fan (turbine) is installed in the boiler, with the help of which combustion products are forcibly removed from the boiler into the atmosphere. To do this you will have to buy additional coaxial chimney, or pipe system for separate smoke removal and air flow.

The coaxial type of chimney of the “pipe-in-pipe” type is installed with one end (through the elbow) on the boiler, and the other end goes out through the wall to the street. This is very convenient, because... there is no need to specially fence the chimney through the roof.
Such models are designated by Baxi with the article number “F” or “Fi”. For example, mounted double-circuit gas boilers Baxi Main Four 18 F, Baxi Eco 4S 24F or Baxi Eco Four 24 F. The numbers indicate to us the power of the boiler, i.e. 18 or 24 kW.

2. Atmospheric boilers Baxi with an open combustion chamber

If your private home already has a chimney with a diameter of at least 130 mm, then you can buy a boiler with an open chamber, the combustion products of which are released due to natural draft. Such boilers are often called “aspirated” boilers.

On the Baxi boilers themselves, the diameter of the smoke outlet pipe is 121-122 mm, so an aluminum corrugation with a diameter of 125 mm, capable of withstanding temperatures up to 400 degrees Celsius, which can be stretched up to three meters, is suitable for them. Or you can use chimney pipes from of stainless steel the same diameter. True, this chimney option will cost a little more.

These models do not have a turbine, and the Baxi boiler is marked with the article “i”, or it is not indicated at all. For example, "Baxi Eco Four 24i" or "Baxi Four Tech 24".

Baxi wall-mounted gas boilers are available in two versions:

1. Single-circuit.

This type of boiler only provides for heating the coolant in the heating system. These boilers have only one main heat exchanger. This type of boiler is not very popular, because its cost is slightly lower than that of dual-circuit models.

In turn, a wall-mounted double-circuit gas boiler can always be used only for heating, and the second circuit for hot water cannot be connected at all.

You can simply buy a Baxi double-circuit gas boiler, even if there is no running water in the future. After all, perhaps after some time you will find the second circuit of this boiler useful, and you will not have to buy a new device.

2. Dual-circuit.

Such boilers are most popular among buyers, as evidenced by numerous reviews of Baxi gas boilers. They are able to work both as a heating unit and as a flow geyser. Moreover, when using running hot domestic water, the heating of the heating circuit does not turn on automatically, unlike many brands of floor-standing gas boilers.

Double-circuit wall-mounted gas boilers have two separate heat exchangers, or one bithermic one for heating both circuits in one monolithic block. Boilers of this type are in greatest demand among potential buyers. Having purchased such a boiler, we get both a boiler for heating and a gas water heater for hot water supply in “one bottle”.

Design features of Baxi double-circuit gas boilers: instructions
1. All models are equipped with two separate heat exchangers (except for boilers of the Main Four and Main 5 series) for heating water in the heating system and utility water for hot water supply. The main heat exchanger is made of high-quality copper, the secondary one for hot water supply is made of stainless steel.

2. All boilers are equipped with a circulation pump German manufacturers, either Grundfos or Wilo. This pump is capable of raising the water column in the heating system up to 6 meters, which is quite enough for a two-story house or cottage. The circulation pumps built into the boilers are quite economical and are equipped with an automatic air vent.

3. To maintain required pressure In the heating system, Baksi boilers have a built-in membrane expansion tank with a volume of 6-10 liters. There is no need to purchase an additional one if the total volume of water in the system does not exceed 100-150 liters. You can find out this individual volume yourself by counting the total number of radiator sections, the length of the pipe, or when filling the system.

4. Baxi boilers are equipped with a Honeywell gas valve, the gas burner has stainless steel flame dividers. All models automatically maintain the water temperature in the heating system and in the DHW circuit thanks to smooth electronic modulation of the burner.

The boiler safety group includes:

— automatic air vent;
— safety valve with pressure gauge.

Let's consider the device of a double-circuit gas boiler using the example of the “Baxi Eco Four 24F” model according to the diagram:
1 - hydraulic pressure switch

2 - three-way valve

3 - three-way valve motor

4.22 - 3 bar safety valves

5 - Honeywell gas valve

6 - gas supply tube to the burner

7 - water temperature sensor in the system

8 - flame spark plug

9 - overheat protection sensor (thermostat)

10 - main heat exchanger

11 - smoke hood

12 - turbine for exhausting combustion products

13 - Venturi tube

14,15 — position points. and negative pressure

16 — traction control sensor

17 - gas burner

18 - expansion membrane tank

19 - circulation pump

20.21 - drain valve and pressure gauge
23 - tap for recharging the heating system
24.25 - temperature sensors of the DHW circuit

In addition, wall-mounted boilers have a built-in electronic board, the so-called. the “brains” of the boiler, various sensors: flow, temperature of the DHW and heating circuits, as well as draft and flame sensors. There is a system for protecting the boiler from freezing and blocking the circulation pump. This does not cancel the mandatory purchase of a voltage stabilizer for a boiler of this brand.

Baksi gas boilers: differences between models and technical characteristics

As we see, the lineup This Italian manufacturer has a fairly wide range of boilers. Let's now take a closer look at each of the main models and find out how they differ from each other and what features they have.

Features of the boiler models of the Baxi Main Four and Baxi Main 5 series

The predecessor of this series of boilers were devices called Baxi Main, which did not have an LCD display and a number of other functions. In general, the word “Main” translated from English means “main” or “main”. Also in our case, the “Main” series boilers are the basic version of the wall-mounted gas boiler from the Baxi company.

Their main distinguishing feature is the presence of a bithermic heat exchanger. This means that both the heating system circuit and the DHW circuit are heated in one heat exchanger. The water in the circuits does not mix, and the running water is heated precisely by the heating circuit.

Fifth generation boiler Baxi Main 5 It attracts with its compact size, but is only available with a closed combustion chamber, unlike the fourth generation boiler. They can be used for heating a private house or apartment with an area of up to 200-240 m2, and have a model range with a power of 14, 18 and 24 kW.
Features of the Baxi Eco Four and Baxi Eco Compact boiler models

The main feature of these models is the presence of an additional plate secondary heat exchanger made of stainless steel for heating the DHW circuit.

The main (primary) heats water only in the heating circuit, and the secondary works independently of it, using coolant from the heating circuit to heat running water. Thus, the load on the main heat exchanger is noticeably reduced. Thus, the service life of both it and the gas boiler itself increases.

Model Baxi Eco Compact Already in its name it indicates to us its small dimensions, due to the better arrangement of internal elements, compared to the same boilers of the fourth series. In addition, they are equipped with a new electronic board. The “ancestors” of the Eco Four series boilers are the wall-mounted gas boilers of the third series, Baxi Eco 3 Compact.
Features of Baxi Four Tech gas boiler models

Boilers series Baxi Four Tech- This is a cheaper version of the Eco Four series boilers. They are also equipped with two separate heat exchangers made of copper and stainless steel. Their distinctive feature is that the hydraulic part (water supply tubes) is not made of copper, as in Eco Four, but of plastic.

Due to this, the manufacturer managed to reduce the price of wall-mounted double-circuit gas boilers with two heat exchangers, and some buyers appreciated this: after all, boilers of this series also found their firm place in the market. This was especially noticeable during the period of the collapse of the ruble in relation to the dollar and euro.
Additional functions and boiler operation control

All models are equipped with a digital control panel, on which you can set the boiler operating mode, the water temperature in the heating system and hot water supply, and adjust the underfloor heating mode in the temperature range of 35-45 degrees. It is also possible to regulate the operation of the boiler depending on the weather outside, thanks to weather-dependent automation, by connecting a special sensor outside temperature.

Or buy a room thermostat for the Baxi boiler and set the room temperature.
But, unfortunately, these accessories are not included in the package and must be purchased separately.
The only exception is the Luna-3 Comfort model with a remote control panel.

In addition, the display shows errors when the Baxi boiler is operating under certain codes, for example, “E 06” - the DHW temperature sensor is faulty, etc.

Advantages of Baxi wall-mounted gas boilers

— wide model range;
— many service centers in Russia and the CIS countries;
— availability of spare parts from official representatives (dealers);
- reasonable cost.

Disadvantages of Baxi boilers

- weak electronics (in particular, electronic board);
— high sensitivity to running water of poor quality;
- not “original” spare parts.

Results
Today we examined in detail the wall Baxi gas boilers, reviewed the advantages and disadvantages of the models, their technical characteristics, according to the operating instructions. We also compared how the main models of this brand of boilers differ and made our own review of them.

I will not recommend or dissuade you from purchasing, the choice is yours. Read reviews and analyze Baxi gas boilers. I can only say that the price-quality ratio for Baksi boilers is quite good, even despite the fierce competition in the heating equipment market. Let's watch the video review.

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Independent heating system

Autonomous heating does not depend on heating networks. And this is perhaps the main advantage. You can regulate the temperature in the room yourself, and if necessary, turn off the heating altogether. On average, autonomous heating equipment fully pays for itself within 5 years.

The comfort, efficiency and reliability of home heating depend on the choice of boiler. If your home is located in a gasified area, then it makes sense to purchase a gas boiler.

Types of boilers

Running water is designed to provide hot water in the house. gas heater. It was previously installed in apartment building. Now the models have been improved and are equipped with a gas control and ignition system.

A single-circuit gas boiler is used to heat homes small area. It is simple, powerful, but its operation has its own characteristics:

need for connection to the chimney;
use for combustion internal air premises (open combustion chamber);
the need for additional ventilation of the room.

A boiler with an open combustion chamber requires increased caution and strict adherence to fire safety and sanitary requirements. Among single-circuit boilers there are boilers with a closed combustion chamber, but they are more expensive.

A double-circuit gas boiler can not only heat a room, but also heat water. One circuit works for water heating, and the second for heating.

Wall-mounted gas boilers "Baksi"

The design and construction of Italian gas boilers meet the needs of modern heating. The Baxi Luna gas boiler can be placed on any free space walls. It does not require a special room for placement - everything it needs to work is already provided for by the internal structure.

All Baksi wall-mounted gas boilers undergo mandatory certification for compliance with operational safety requirements. Consumer reviews most often confirm the ease of operation of the boiler and its safety.

The units are equipped with a special control system, which is capable of diagnosing the operation of the system and taking into account weather conditions. If there is a drop in gas pressure at the main inlet, this will not affect the operation of the gas boiler in any way.

Range of wall-mounted gas boilers "Baksi"

Gas single-circuit boiler - only for heating the house.
Household wall-mounted gas boiler with two circuits; purpose - heating and hot water supply.
Turbocharged boiler with two circuits. Special equipment increases the speed of internal processes - for heating and hot water supply.
A gas wall-mounted condensing boiler uses the released energy of steam until it turns into water.

Wall-mounted boilers with one circuit

Single-circuit gas heating boilers are designed to heat the house. They decided to make the wall-mounted “Baksi” more functional and installed special outlets for installing an additional boiler. It is possible to heat water for household needs.

Single-circuit boilers are designed quite simply. The burner that ignites the gas is placed inside a safe thermal envelope. The heat that accumulates in the combustion chamber is transferred to the heating circuit through a heat exchanger.

The material for the manufacture of the heat exchanger is copper, cast iron or steel. This type of boiler is designed for low power - from 14 to 31 kW. Wall-mounted Baxi are small in size and are made with a closed or open type chamber.

Double-circuit wall-mounted gas boilers

The boiler design provides for a heat exchanger that is connected to the heating system. Water heating occurs once in a closed cycle. Then the heat exchanger only needs to maintain the required temperature.

The heat exchanger, which is connected to the water heating system, is secondary, and a new portion periodically enters it cold water, so it is forced to work constantly to heat up.

Types of heat exchangers on Baksi boilers:

Lamellar. Copper plates are soldered onto a long curved steel tube. To protect the structure from high temperatures, a special protective layer was applied to it.
Biometric. Another pipe of smaller diameter is inserted inside the pipe. Water for heating flows through the outer one, and water for household needs flows through the inner one.

Gas boiler Baxi Luna 3 Comfort

Perhaps the most popular and advanced is the Baksi double-circuit gas wall-mounted boiler. Reviews, in any case, are exactly like that. The model is considered successful and reliable. There are several reasons for this:

A weather-compensating automatic system has been installed.
Temperature conditions for heating radiators (30-85° C) and separately for water heated floors (30-45° C).
Self-diagnosis with memory of recent problems and malfunctions.
The display is liquid crystal, reflects all the necessary operating parameters.
An anti-corrosion coating is applied to the heat exchanger.

Wall-mounted double-circuit turbocharged boilers

The use of such boilers provides significant savings on blue fuel. The system has a built-in turbocharger, and this allows you to obtain the required amount of heat with lower gas consumption. A fan is additionally installed in the boiler, which blows air from the street.

Cold air enters through a pipe built into another, larger diameter, which works to remove combustion products. The design is completely sealed and prevents harmful toxins and fumes from entering the room.

Condensing wall boilers

The principle of their operation is based on the laws of physics. Typically, gas burns in the boiler chamber and combustion products are discharged outside. In condensation, the procedure is slightly different.

When carbon burns, it produces carbon dioxide and water vapor. The installed heat exchanger cools the steam and uses the released energy to heat the circuits. Its efficiency significantly exceeds that of simple gas boilers.

Advantages of wall-mounted boilers according to consumer reviews

Baksi boilers with two circuits for all their small size are able to cope with room heating and water heating in uninterrupted mode.
Water is heated in a flow mode, and not in a boiler mode. It is much more convenient and economical.
The boiler operates completely automatically. The user does not need to spend time monitoring the boiler’s workflow.
By choosing a wall-mounted gas boiler “Baksi”, you do not need to purchase additional equipment. Everything you need for battery life boiler, provided for by its design.
The dimensions of the unit are minimal. It does not take up much space, so it is most often installed in the kitchen, where it matches the size of the wall cabinets.
If the Baksi gas boiler is installed correctly, errors in its operation are practically eliminated. It is reliable, effective, safe and relatively inexpensive.

Main characteristics of wall-mounted gas boilers "Baksi"

There is a constant modulation of the flame. This increases efficiency and saves gas.
In winter, when low temperatures, when the gas pressure drops to 5 mbar, the device operates smoothly.
It is enough to change the jets and re-configure the boiler’s gas automation - and it will switch from natural gas to liquefied gas.
Stainless steel was used for the material of the burners, and this significantly increased their service life.
A filter is installed at the cold water inlet.
You can install a room thermostat or a mode programmer.
The maximum pressure in the heating system is 3 bar, in the DHW circuit - 8 bar.

Gas floor-standing boilers "Baksi"

A wide range and optimal consumer properties are distinguished by Baksi gas boilers. Reviews from owners who have installed floor option boilers, indicate their uninterrupted operation. And this is thanks to the excellent quality of their execution.

Gas floor-standing boilers "Baksi" have a built-in electronic self-diagnostic system that monitors operating parameters and, if necessary, adjusts them in the event of a drop in pressure in the line.

The Baksi gas boiler operates completely autonomously, without any intervention. Errors in the operation of the boiler or a decrease in pressure in the pipeline lead to prompt shutdown of the gas supply to the burner.

Floor-standing boilers are produced in several versions. You can choose the most suitable Baksi gas floor-standing boiler to suit the needs of your home, cottage or industrial premises, where it is necessary to maintain a constant temperature. Owner reviews indicate that connection errors are virtually eliminated and the models are extremely simple. Unit installation specialists will customize them to the homeowner's needs.

Range of floor-standing gas boilers "Baksi":

Single-circuit boilers.
Double-circuit boilers.
Atmospheric boilers.
Condensing boilers.

Condensing gas boilers "Baksi"

The operating principle is the same as for wall-mounted boilers. On the heat exchanger, the process of reverse conversion of the dispersed part into liquid takes place. During the transition there is a release extra energy, which significantly increases the energy intensity of the boiler.

Atmospheric floor-standing boilers with one circuit

The Baksi gas boiler has a separate source for igniting the burner. The units are used in different conditions. To increase the safety of using the unit, we manufactured an atmospheric gas boiler “Baksi”. The instructions instruct to install it in a place where it is possible to connect a chimney, gas pipe, heating and water supply systems.

In atmospheric boilers, a thermocouple controls uninterrupted operation products. The boiler's dependence on energy resources is eliminated, and if the burner flame goes out, the inlet valve closes. This device managed to increase the safety of operation of a gas boiler.

Atmospheric floor-standing boilers with two circuits

Gas floor-standing boilers “Baksi”, which have two independent circuits, will heat the house and prepare hot water. The thermal energy that is generated is spent on maintaining the already obtained heat transfer regime. The periodic supply of cold portions of water forces the boiler to constantly work to heat up.

Gas boiler "Baksi Slim"

The Baxi Slim gas boiler is compact and independent of electricity. Made of cast iron, has atmospheric burner and automation, which will ensure safe use of the unit by closing the gas valve. In the model line, the Baxi Slim gas boiler is represented by 5 varieties. They differ in power.

There may be problems that disable the Baksi gas boiler. The installation instructions must always be followed.

Problems with the boiler may arise if an incorrectly selected chimney is installed. Specialists in the field insist on installing a coaxial chimney, which is also produced by Baksi.

However, if you already have a proven, reliable chimney and you have no doubt about its serviceability, then it is possible to connect to it. This will save the owner some money.

It is easy to maintain Baxi Slim gas boilers. User reviews indicate that if you need to clean any compartment of the unit, you can do it yourself, without resorting to the services of professionals.

You can easily set up the Baksi gas boiler yourself. The control instructions are simple, and the LCD information display will give a comprehensive picture of the settings. The consumer can set the power himself; he must set the desired program and set the required minimum and maximum values.

The Baksi gas boiler has a built-in self-diagnosis system. He himself can not only identify the breakdown, but also fix it in a short time. The display shows all the information to adjust and set the system pressure and water temperature.

Safe and reliable gas boilers "Baksi". Consumer Reviews

Any equipment is subject to breakdowns, but everything is compared in percentage terms. Judging by the reviews of the owners, Baksi gas boilers are of high quality, easy to control, fully automated and do not require complex maintenance.

If complaints arise, the breakdowns are insignificant and they do not always occur due to poor quality of the boiler itself. It is necessary to monitor the draft in the chimney so that the water pressure sensors do not fail. There may be scale on the heat exchanger, but this can also be quickly corrected.

Instructions for choosing a gas boiler "Baksi"

Be sure to inquire about the warranty period that is issued when purchasing the boiler.
A wall-mounted boiler with a power of 11-42 kW is suitable for heating a house with an area of up to 400 square meters. m. In price, it will be almost half cheaper than the floor one. This is explained by the design of the boiler.
If the area of the cottage allows, the boiler can be installed in separate room, then the choice can be made on boilers with an open combustion chamber.
The closed combustion chamber of the boiler is designed for living rooms. Oxygen is taken in through a coaxial chimney pipe. Forced or additional ventilation is not required.
A turbocharged gas boiler is environmentally friendly and economical, it can be installed in enclosed spaces.
If you plan to regularly use a bathtub, bidet, or kitchen sink in your home, the choice is a boiler with two circuits.
If the project will have more than one bathroom, then a single-circuit boiler and additional installation boiler
Floor-standing boilers have a greater safety margin, they are more durable, more powerful and more productive. To install such a boiler you will need a special room.
Due to the long service life, it is necessary to take a more responsible approach to the installation of the boiler itself and the installation of the chimney.

Italian gas boilers "Baksi" regularly receive positive reviews from users. They have proven themselves in the market to be safe, productive and environmentally friendly, have a modern design and high-tech automation, fully meet customer expectations and will not disappoint discerning users.

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Device and main elements

In terms of their design, TM Baksi units are not much different from other gas boilers. They consist of several components.

Gas burner device

This node includes several elements:

Gas-burner: in the most affordable models a burner with constant power is installed, in more expensive ones - with step regulation. To maintain a constant temperature in the room, the automation system has to periodically extinguish such burners and then re-ignite them. The most expensive Baksi boilers are equipped with modulating burners, the power of which is smoothly regulated. Such burners operate constantly and in the most optimal mode, so the set temperature is maintained with high accuracy.
Combination gas valve: allows or blocks the gas supply to the burner depending on the signals from the automation devices.
Ignition block: consists of an electronic circuit and an electrode. This unit converts the mains voltage supplied to it into high-voltage high-frequency pulses, which are supplied to the electrode. As a result, a spark flashes between the electrode and the burner (in some models, between two electrodes), igniting the gas-air mixture on the burner.

The combustion chamber of TM Baksi boilers is closed, that is, air is taken into it from the street. The only exception is the Luna-3 Comfort 240i model, which has an open camera.

Heat exchanger

The company installs both steel and copper heat exchangers in its units.

The latter are more efficient due to their high thermal conductivity.

The successful design of the heat exchanger allows you to absorb 90.8% of the heat generated in the combustion chamber (some models have a slightly lower efficiency - 88.7%).

In addition to the main heat exchanger, the Baksi heater may have another one designed for preparing hot water. Such boilers are called double-circuit boilers. Some models, for example, Baxi Ecofor 24, can heat water in an external boiler.

A mesh filter is installed at the inlet of the heat exchanger.

Expansion tank

U different models The volume of this element can be 8 or 10 liters.

Automation system

All units of this brand use energy-dependent automation. The total power consumption of the boiler, depending on the model, is 135 or 165 W. For most models, for example, Luna-3, Eco-3, Slim, Nuvola, the automation is weather-sensitive.

This means that in addition to the timer and room thermostat, you can connect an outdoor temperature sensor to it. Accounting weather conditions allows the system to promptly switch the boiler to the optimal mode, which makes the heating system more economical.

The wall-mounted model Luna-3 Comfort (3rd generation boiler) uses a temperature sensor instead of a room thermostat.

Operating modes

TM Baxi boilers can operate in two modes:

standard;
low temperature

The first involves heating the coolant to 85 degrees with a return temperature of about 30 degrees. The second is designed for a temperature ratio of 45/30 degrees (supply/return) and is intended for “warm floor” systems. This mode can also be used with normal radiator heating during the off-season.

Setup and adjustment

So, let's look at the Baksi gas boiler - operating instructions, setup and adjustment. To set up the boiler, just set the desired temperature on the room thermostat - the unit will do the rest itself. All data is shown on the display. The most convenient are thermostats with a programming function, through which you can plan the boiler operating schedule for a day or a week in advance (depending on the model).

In Luna-3 Comfort series boilers, the controller is removable and can control the operation of the boiler remotely. It looks like a panel with a display and keys, which also contains a room temperature sensor.

The controller is placed in one of the rooms at any convenient place and with its help the operation of the heater is adjusted. On it you can view the results of self-diagnosis and, if necessary, view a list of recent errors - it is stored in memory.

Prevention

To prevent breakdowns of the Baksi boiler and thereby extend its service life, this unit should be connected to the electrical network through a stabilizer. Imported electronics are designed for high-quality power supply, and if its parameters deviate significantly from the norm, which we still see quite often, they easily fail.

At certain intervals (after several years of operation), the outside of the heat exchanger must be cleaned of soot. If it is made of stainless steel, you can use a special brush with metal bristles. This tool is not suitable for cleaning a copper heat exchanger, as it can damage it. It is better to use a metal sponge designed for washing dishes.

The heat exchanger of the DHW circuit needs to be washed from time to time with some descaling agent. The same must be done with the main heat exchanger if ordinary water that has not undergone the desalting procedure is used as a coolant.

The fan must be periodically lubricated, otherwise over time the engine will not be able to rotate it at a sufficient speed. Unscrew the back of the assembly and remove the stator, after which you will need to pour a few drops of machine oil inside.

Errors that occur during operation

TM Baxi boilers have a self-diagnosis function, thanks to which these units independently detect their own faults. The test results are displayed on the display in the form of an alphanumeric code. Each code indicates several possible faults. Below are the most common ones.

Error E01 (flame control sensor activated)

When connecting the boiler to the electrical network, the phase and neutral wires were reversed, as a result of which the boiler cannot turn on (this is true for phase-dependent models, for example, Main 24 Fi and Main For). The power cable must be connected correctly.
The burner cannot develop sufficient power. Reasons: breakdown of the gas valve or diode bridge, lack of air (smoke can leak into the air intake tract), as well as incorrect pressure settings in the heating circuit.
The gas pressure has dropped or its lower threshold has been set incorrectly. If a decrease in pressure is observed frequently, the lower limit in the settings should be set at 5 mbar. In the event of such a malfunction, the boiler turns off immediately after starting, and popping noises may also be heard when it is turned on.
The combustion control sensor or ignition unit is faulty.

E02 (coolant overheating sensor)

The cause of overheating may be clogging of the heat exchanger with scale, a breakdown of the circulation pump, a clogged filter, or the appearance of an air lock in the heating circuit.

False alarms of the system are possible due to a breakdown of the temperature sensor or its insufficient contact with the coolant (should be installed with thermal paste).

E03 (traction sensor)

The chimney is clogged with soot or condensation, is too long or has an incorrect design (for example, there is no mandatory vertical section at the beginning, with a length of at least 2 diameters). Be sure to check the fan for functionality.

E04 (flame tracking electrode)

Triggers when the burner goes out repeatedly (more than 6 times). It is necessary to check whether flue gases are leaking into the duct. The reason may also be voltage fluctuations.

E05 (coolant temperature sensor)

The error appears when this sensor fails or when its contact with the board is broken.

E06 - appears when the temperature sensor of the water heating circuit is faulty (in double-circuit boilers)

If this sensor signals a gradual or sudden decrease in temperature in the DHW circuit, the 3-way valve may have failed.

It is checked as follows:

after turning off the boiler, wait for the coolant in the pipes and radiators to cool completely;
cut off the heating circuit using valves;
start the boiler in water heater mode;
check the temperature of the hot water in the DHW circuit and the coolant: if the medium in both circuits is heated, the 3-way valve needs to be changed.

E10 (minimum coolant pressure switch)

This message is displayed mainly due to a breakdown of the circulation pump or a clogged heating circuit. The filter and heat exchanger are more susceptible to this (they become overgrown with scale).

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Features of the operation of these systems

All Baksi gas boilers have a number of features that significantly improve the user characteristics of the device. The advantages of the equipment can be described in the form of a short list.

The flame is always adjustable. The boiler does not just ignite - it starts up in two stages. First, the burner warms up the combustion chamber, operating at minimum power for approximately 60 seconds, then goes to the level set by the electronic control unit.
If temperature control sensors are used, the automation maintains only the required flame level. This ensures smoother operation and reduces the number of mode switching cycles. As a result, the boiler lasts longer due to less wear on nozzles, combustion chamber walls, blowers, and coils.
The post-circulation system, controlled by signals from external sensors, can significantly reduce fuel and electricity consumption. The boiler will continue to circulate the coolant after the burners are turned off, until a signal arrives that the temperature balance has decreased.
Baksi boilers support dual temperature control. It is possible to control the operation of automation not only using sensors installed indoors, but also located outdoors. This makes it possible to maintain an optimal humidity balance and better climatic conditions in the rooms.
The equipment is quite compact compared to its competitors and weighs little. Connecting Baksi gas boilers is as convenient as possible; it is carried out according to standard schemes for both wall-mounted and floor models. This makes it possible to minimize malfunctions of Baksi gas boilers that arise due to improper operating conditions. You can use the equipment with any options for organizing the strapping.

Another advantage, which is somewhat implicit to the buyer, is the orientation of Baksi units for complex use. For example, the instructions for using the Baxi gas boiler make it clear that if connected using boilers from the same company, better results will be obtained.

Also, the “gas boiler with Baksi boiler” lines provide for direct connection of electronic control circuits to create a flexible control system. If we talk about the disadvantages of boilers of this brand, the following points can be noted.

High price. Compared to its closest competitors on the market, the equipment has a 2-2.5 times higher price. This is easily explained by the technological effectiveness of the work, as well as the best ventilation of combustion chambers and the stability of maintaining the indoor climate.
Floor standing boilers are very sensitive to installation. Incorrect installation or location can cause various deviations, including increased noise, ignition with a bang, and others. This has almost no effect on the main operating parameters, but it does cause concern.

A high price in the eyes of potential buyers is key factor the fact that the name Baksi has not yet become widely known in the markets of the post-Soviet space.

Designs and versions

In the offered lines you can find almost any model. The design of a Baxi gas boiler involves the use of all three main engineering solutions:

with an open combustion chamber;
with forced charging and a closed combustion chamber;
with condensation system.

Among the equipment suitable for heating an apartment or small house, there are a huge number of wall-mounted gas boilers. Both single-circuit and double-circuit models are presented. Within the framework of boilers that provide for floor placement, there are a lot of models that require joint piping with the boiler. You can implement any of the basic schemes:

connecting a double-circuit boiler to work with the boiler as a buffer for the heating system;
using the boiler to ensure the operation of the hot water supply system through a three-way avk boiler air valve;
connecting the heater through an additional control system to realize the possibilities maximum speed extracting hot water from the system;
using a boiler as a heat accumulator for both the heating system and hot water supply.

Some characteristics of equipment suitable for heating an apartment.

Most interesting for residents apartment buildings, as well as owners of small cottages and private houses, wall-mounted boilers of the Main, ECO Compact, Fourtech series. These boilers are compact in size and have no special requirements for installation, allow connection to any piping options, and their performance is sufficient to satisfy the needs of most users.

To illustrate this, we need to compare devices operating on different principles. For small room In terms of size and thermal power, the Fourtech series boilers are ideal.

Model	BAXI Fourtech 24	BAXI Fourtech 24F
Combustion chamber type	Open, atmospheric	Closed, supercharger
Net heat output, kW	24	24
Minimum performance, kW	9,3	9,3
Efficiency at maximum performance	91,20	92,93
Efficiency at 30% power level	89,3	90,37
Gas consumption, cubic m/h	2,78	2,73
Overall dimensions in mm	730x400x299	730x400x299
Weight, kg	29	33

As can be seen from the technical characteristics, with very compact dimensions of the device and low weight, good thermal energy output is ensured. For comparison, the closest competitors from VAILLANT, equal in power, have larger dimensions and a third higher weight. The advantage of a unit with a closed combustion chamber is also immediately noticeable. It has lower gas consumption at all power levels, as well as better efficiency. When the piping works with a boiler, the financial investment will pay off much faster.

Malfunctions and methods for solving them

If we talk about problems, it is worth immediately noting that electronic systems controls ensure maximum safety. Technical solutions, embedded in a special operating algorithm, make it possible to raise the level of reliability even higher.

However, some glitches do occur. Individual malfunctions and methods for solving them are given in the instructions for using the Baxi gas boiler. Typical problems, can be determined by the fault code on the indicator.

Up

Baksi gas boilers are reliable equipment, the level of user characteristics of which fully corresponds to the high price. Thoughtful operating modes guarantee long service life, and the use of boiler trims and joint control can provide excellent economic efficiency of the heating system as a whole. Baksi boilers, thanks to the ability to be equipped with sensors and thermostats, can operate without human intervention, providing excellent temperature regime premises.

Among the many offers of climate control equipment for the home, a new name has appeared relatively recently. If you look through the instructions for the Baksi gas boiler, famous manufacturer from Italy, it seems that the equipment is no different from its competitors. However, the product line includes products that differ both in the operating algorithms used and in the ability to implement complex solutions for heating a home.

Features of the operation of these systems

All Baksi gas boilers have a number of features that significantly improve the user characteristics of the device. The advantages of the equipment can be described in the form of a short list.

The flame is always adjustable. The boiler does not just ignite - it starts up in two stages. First, the burner warms up the combustion chamber, operating at minimum power for approximately 60 seconds, then goes to the level set by the electronic control unit.
If temperature control sensors are used, the automation maintains only the required flame level. This ensures smoother operation and reduces the number of mode switching cycles. As a result, the boiler lasts longer due to less wear on nozzles, combustion chamber walls, blowers, and coils.
The post-circulation system, controlled by signals from external sensors, can significantly reduce fuel and electricity consumption. The boiler will continue to circulate the coolant after the burners are turned off, until a signal arrives that the temperature balance has decreased.
Baksi boilers support dual temperature control. It is possible to control the operation of automation not only using sensors installed indoors, but also located outdoors. This makes it possible to maintain an optimal humidity balance and better climatic conditions in the rooms.
The equipment is quite compact compared to its competitors and weighs little. Connecting Baksi gas boilers is as convenient as possible; it is carried out according to standard schemes for both wall-mounted and floor-standing models. This makes it possible to minimize malfunctions of Baksi gas boilers that arise due to improper operating conditions. You can use the equipment with any options for organizing the strapping.

High price. Compared to its closest competitors on the market, the equipment has a 2-2.5 times higher price. This is easily explained by the technological effectiveness of the work, as well as the best ventilation of combustion chambers and the stability of maintaining the indoor climate.
Floor standing boilers are very sensitive to installation. Incorrect installation or location can cause various deviations, including increased noise, ignition with a bang, and others. This has almost no effect on the main operating parameters, but it does cause concern.

The high price in the eyes of potential buyers is a key factor that the Baksi name has not yet become widely known in the markets of the post-Soviet space.

Designs and versions

In the offered lines you can find almost any model. The design of a Baxi gas boiler involves the use of all three main engineering solutions:

with an open combustion chamber;
with forced charging and a closed combustion chamber;
with condensation system.

Among the equipment suitable for heating an apartment or small house, there is a huge number of wall-mounted gas boilers. Both single-circuit and double-circuit models are presented. Within the framework of boilers that provide for floor placement, there are a lot of models that require joint piping with the boiler. You can implement any of the basic schemes:

connecting a double-circuit boiler to work with the boiler as a buffer for the heating system;
using the boiler to ensure the operation of the hot water supply system through a three-way avk boiler air valve;
connecting the heater through an additional control system to realize the maximum speed of hot water extraction from the system;
using a boiler as a heat accumulator for both the heating system and hot water supply.

Some characteristics of equipment suitable for heating an apartment.

The most interesting for residents of apartment buildings, as well as owners of small cottages and private houses, are wall-mounted boilers of the Main, ECO Compact, and Fourtech series. These boilers are compact in size, do not have any special installation requirements, allow connection to any piping options, and their performance is sufficient to meet the needs of most users.

To illustrate this, we need to compare devices operating on different principles. For a small room, based on size and thermal power, Fourtech series boilers are ideal.

Model	BAXI Fourtech 24	BAXI Fourtech 24F
Combustion chamber type	Open, atmospheric	Closed, supercharger
Net heat output, kW	24	24
Minimum performance, kW	9,3	9,3
Efficiency at maximum performance	91,20	92,93
Efficiency at 30% power level	89,3	90,37
Gas consumption, cubic m/h	2,78	2,73
Overall dimensions in mm	730x400x299	730x400x299
Weight, kg	29	33

Malfunctions and methods for solving them

If we talk about problems, it is worth immediately noting that electronic control systems ensure maximum safety. Technical solutions embedded in a special operating algorithm allow us to raise the level of reliability even higher.

However, some glitches do occur. Individual malfunctions and methods for solving them are given in the instructions for using the Baxi gas boiler. Typical problems can be identified by the fault code on the indicator.

Baksi gas boilers are reliable equipment, the level of user characteristics of which fully corresponds to the high price. Thoughtful operating modes guarantee long service life, and the use of boiler trims and joint control can provide excellent economic efficiency of the heating system as a whole. Baksi boilers, thanks to the ability to be equipped with sensors and thermostats, can operate without human intervention, providing excellent room temperature conditions.

Wall mounted Baxi gas boilers have literally flooded the Russian heating equipment market over the past decade. This is not surprising. When a potential buyer is faced with a choice: to buy an inexpensive boiler, but unfinished and domestic, or a reliable, but expensive one made in Germany, the choice is often made in favor of Italian gas boilers.

As a rule, they are distinguished by a fairly good price-quality ratio and a developed technical service network; spare parts are easy to find. Let's consider the most popular brand of gas boilers in Russia, Baxi, reviews of which we can often read on specialized forums, online blogs or on the company's official website.

We will analyze in detail the main models, types, design, technical characteristics of wall-mounted (mounted) single-circuit and double-circuit gas boilers Baksi, identify their main advantages and disadvantages, and also understand how they differ from each other according to the operating instructions.

Basic models of wall-mounted gas boilers from Baxi

The following models of wall-mounted gas boilers from Baxi are available on our market:

— Baxi Main Four and (fourth and fifth generation of boilers);
— Baxi Four Tech and Baxi Eco 4S;
- and its more compact analogue Baxi Eco Compact;
— Baxi Luna-3 and Luna-3 Comfort with a remote control panel;
— Baxi Nuvola-3 with built-in storage boiler.

Baksi wall-mounted gas boilers differ in the type of exhaust of combustion products and are:

1. Baxi turbocharged gas boilers with a closed combustion chamber

A special fan (turbine) is installed in the boiler, with the help of which combustion products are forcibly removed from the boiler into the atmosphere. To do this, you will have to additionally buy, or a pipe system for separate smoke removal and air supply.

Gas boiler Baxi Main Four 240 Fi

Such models are designated by Baxi with the article number “F” or “Fi”. For example, mounted double-circuit gas boilers Baxi Main Four 18 F, Baxi Eco 4S 24F or Baxi Eco Four 24 F. The numbers indicate to us the power of the boiler, i.e. 18 or 24 kW.

2. Atmospheric boilers Baxi with an open combustion chamber

On the Baxi boilers themselves, the diameter of the smoke outlet pipe is 121-122 mm, so an aluminum corrugation with a diameter of 125 mm, capable of withstanding temperatures up to 400 degrees Celsius, which can be stretched up to three meters, is suitable for them. Or you can use stainless steel chimney pipes of the same diameter. True, this chimney option will cost a little more.

These models do not have a turbine, and the Baxi boiler is marked with the article “i”, or it is not indicated at all. For example, "Baxi Eco Four 24i" or "Baxi Four Tech 24".

Baxi wall-mounted gas boilers are available in two versions:

1. Single-circuit.

This type of boiler only provides for heating the coolant in the heating system. These boilers have only one main heat exchanger. This type of boiler is not very popular because its cost is slightly lower than that of double-circuit models.

In turn, a wall-mounted double-circuit gas boiler can always be used only for heating, and the second circuit for hot water cannot be connected at all.

2. Dual-circuit.

Such boilers are most popular among buyers, as evidenced by numerous reviews of Baxi gas boilers. They are able to work both as a heating unit and as a flow-through gas water heater. Moreover, when using running hot domestic water, the heating of the heating circuit does not turn on automatically, unlike many brands of floor-standing gas boilers.

Double-circuit wall-mounted gas boilers have two separate heat exchangers, or one bithermic one for heating both circuits in one monolithic block. Boilers of this type are in greatest demand among potential buyers. By purchasing such a boiler, we get both a boiler for heating and hot water supply in “one bottle”.

Design features of Baxi double-circuit gas boilers: instructions

Double-circuit boiler Baxi Eco 4S 24F

1. All models are equipped with two separate heat exchangers (except for boilers of the Main Four and Main 5 series) for heating water in the heating system and utility water for hot water supply. The main heat exchanger is made of high-quality copper, the secondary one for hot water supply is made of stainless steel.

2. All boilers are equipped with a circulation pump made by German manufacturers, either Grundfos or Wilo. This pump is capable of raising the water column in the heating system up to 6 meters, which is quite enough for a two-story house or cottage. The circulation pumps built into the boilers are quite economical and equipped.

3. To maintain the required pressure in the heating system, Baksi boilers have a built-in membrane expansion tank with a volume of 6-10 liters. There is no need to purchase an additional one if the total volume of water in the system does not exceed 100-150 liters. You can find out this individual volume yourself by counting the total number of radiator sections, the length of the pipe, or when filling the system.

The boiler safety group includes:

— automatic air vent;
— safety valve with pressure gauge.

Let's consider the design of a double-circuit gas boiler using the example of the Baxi Eco Four 24F model according to the diagram:

Construction of a double-circuit gas boiler Baxi

1 - hydraulic pressure switch

2 - three-way valve

3 - three-way valve motor

4.22 - 3 bar safety valves

5 - Honeywell gas valve

6 - gas supply tube to the burner

7 - water temperature sensor in the system

8 - flame spark plug

9 - overheat protection sensor (thermostat)

10 - main heat exchanger

11 - smoke hood

12 - turbine for exhausting combustion products

13 - Venturi tube

14,15 — position points. and negative pressure

16 — traction control sensor

17 - gas burner

18 - expansion membrane tank

19 - circulation pump

20.21 - drain valve and pressure gauge
23 - tap for recharging the heating system
24.25 - temperature sensors of the DHW circuit

Baksi gas boilers: differences between models and technical characteristics

As you can see, the range of boilers from this Italian manufacturer is quite wide. Let's now take a closer look at each of the main models and find out how they differ from each other and what features they have.

Features of the boiler models of the Baxi Main Four and Baxi Main 5 series

The fifth generation boiler attracts with its compact size, but is only available with a closed combustion chamber, unlike the fourth generation boiler. They can be used for heating a private house or apartment with an area of up to 200-240 m2, and have a model range with a power of 14, 18 and 24 kW.

Technical characteristics of Baxi Main 5

Features of the Baxi Eco Four and Baxi Eco Compact boiler models

The main feature of these models is the presence of an additional plate secondary heat exchanger made of stainless steel for heating the DHW circuit.

Technical characteristics of Baxi Eco Four

Features of Baxi Four Tech gas boiler models

The series boilers are a cheaper version of the Eco Four series boilers. They are also equipped with two separate heat exchangers made of copper and stainless steel. Their distinctive feature is that the hydraulic part (water supply tubes) is made not of copper, as in Eco Four, but of plastic.

Technical characteristics of Baxi Four Tech

Additional functions and boiler operation control

Or buy Baxi and set the room temperature.
But, unfortunately, these accessories are not included in the package and must be purchased separately.
The only exception is the Luna-3 Comfort model with a remote control panel.

In addition, the display shows errors when the Baxi boiler is operating under certain codes, for example, “E 06” - the DHW temperature sensor is faulty, etc.

Advantages of Baxi wall-mounted gas boilers

— wide model range;
— many service centers in Russia and the CIS countries;
— availability of spare parts from official representatives (dealers);
- reasonable cost.

Disadvantages of Baxi boilers

- weak electronics (in particular, electronic board);
— high sensitivity to running water of poor quality;
- not “original” spare parts.

Rising tariffs and the inaccessibility of centralized resource routes in remote areas contribute to the development of autonomous systems providing private homes with heat and hot water.

Most good options Boilers that provide heating of hot water, power supply and circulation of coolant in heating circuits or underfloor heating systems are recognized.

There are many companies engaged in the production of heating equipment that develop and improve the design of heating units.

The most effective and economical are considered gas installations, which noticeably prevail over other types of heating boilers.

The most important operational procedure is setting, which will be discussed using the example of gas boilers from the Italian company Baxi.

Boiler installation consists of several stages:

Installing a water filter on the pipeline supplying water to DHW system. It is imperative to install shut-off valves on both sides, making it possible to dismantle the filter for maintenance, repair or replacement.
Place the unit in the designated area. Floor-standing units are simply placed at the desired point in the room, while wall-mounted boilers are hung on the surface of solid walls. It is prohibited to mount on plasterboard partitions or other structures that do not have sufficient bearing capacity. Mounting to the wall is done using special brackets (sleds), which are included in the delivery set.
All supply pipelines are connected - gas, forward and return coolant, hot water supply. A coaxial chimney is installed and connected (some models are equipped with a double vertical chimney). The presence and quality of traction is immediately checked.

The final stage is connecting the boiler to the power supply network. This requires a separate outlet; powering other devices from it is prohibited by operating rules.

User manual

First of all, it is necessary to rinse or clean the heating circuit and chimney. Any contamination can disrupt the nominal operating mode, which will cause accelerated wear of certain components and failure of the entire system.

The boiler connection must be carried out by specialists from an authorized service center, who also perform the initial setup of the installation.

The boilers undergo pre-sale preparation and are supplied to the retail chain completely ready for start-up. This means that no additional action is required.

This is the manufacturer’s statement, but in practice it is almost always necessary to adjust the settings in accordance with the existing technological or technical conditions. Basically, the setup consists of defining the minimum and maximum pressure gas and the temperature range of the heating agent, which determines the switching on and off of the boiler.

NOTE!

All settings must be performed by service organizations. The warranty period begins from the moment of startup, and independent activation may be regarded as a violation of the contract with the service center, as a result of which repairs will be refused.

How to turn it on

The boiler is connected to the power supply network only after connecting all pipelines supplying water, heating agent and gas.

It is necessary to carefully check the correct connections, Special attention devote to gas pipeline.

Using a soap solution, check for leaks; if any deficiencies are found, immediately correct them yourself or with the involvement of specialists of the appropriate profile. After this, the boiler can be filled with water by opening the feed tap.

The pressure should be between 0.7 and 1 mbar. When the pressure reaches the desired value, the boiler can be started.

First start

After connecting all communications and power supplies, you can turn on the boiler.

Procedure:

Open the gas tap.
Set the heating and DHW supply mode (or only DHW). These modes correspond to the designations “Winter” and “Summer”.
Install desired temperature by pressing the “+” or “-” buttons.

After this, the burner will start and the boiler will begin to operate. Often, after the first start, an error immediately appears on the display and the boiler is blocked.

This is due to air remaining in the pipes. By pressing the “R” button and holding it for several seconds, the error is reset and the unit is restarted. Several repetitions of this situation may occur before the air is completely removed.

The air can be released more quickly by opening the pump and loosening the screw. The procedure is performed with the power off. The air will come out from under the pump cover as soon as water comes out, the screw will immediately be tightened again and the equipment will start again.

How often should it turn on?

The frequency of turning on the boiler depends on several factors:

Unit power.
Correct boiler settings.
Availability of a room thermostat.

If the power is excessive, the installation quickly heats up the heating agent and turns off. The circulation pump ensures the flow of new portions of cooled coolant, the temperature sensor is triggered and starts the boiler again.

Power can be reduced programmatically. It is also necessary to reconfigure the boiler, in particular, increase parameter F11 (waiting time before restarting) to the maximum, which is 10 minutes.

Using a thermostat allows you to significantly increase the time between starts of the unit, since the air cools and heats up much more slowly.

Temperature adjustment

To increase or decrease the heating agent temperature, there are “+” and “-” buttons to the right and left of the display (on older models there is a special regulator; turning clockwise increases the temperature and vice versa).

If a room thermostat is used, adjustments are made from it, and only limit values are set on the boiler.

When setting the temperature, do not change the parameters in large increments. It is necessary to change the mode smoothly, giving some time to overcome the inertia of the system. This will soften the transition to another mode and extend the life of the boiler.

Pressure setting

To increase the pressure, a make-up valve is used, and to release the pressure, a drain valve is used.

The optimal value is considered to be 0.7-1 mbar. Usually Baxi boilers independently maintain the desired value, but sometimes failures occur. If there is a constant drop that does not disappear after the system is recharged, then there is an OM leak somewhere.

This could mean either leaking pipes or radiators, underfloor heating systems or other external elements.

Often the problem occurs due to a faulty bleed valve. An abnormal increase in pressure may be due to a malfunction or open make-up valve or damage to the expansion tank membrane.

Optimal operating mode

The optimal operating mode of the boiler is described in detail in the user manual.

Its parameters:

Ambient temperature is 70-75°.
Water pressure - 0.7-1 mbar.
Parameters F08 and F10 are adjusted to the minimum and maximum values respectively.

Adjustments are made during commissioning; additional adjustments are made periodically during annual maintenance or after repair work.

Self-diagnosis

Self-diagnosis is an automatic continuous process that starts immediately when the boiler is turned on for the first time.

It does not require any special actions and runs constantly in the background. Any error is immediately registered by the corresponding sensor, which displays it on the display, and the control board blocks the operation of the unit. To reset the error and restart the boiler, press the “R” button and hold it for several seconds.

Basic error codes and their interpretation

Baxi boiler errors are certain deviations from the nominal operating mode, which are recorded by sensors and displayed on the unit display in the form of a numeric code with the letter e (Error).

Let's take a closer look at them:

Error code	Fault type	Solution
E01-02	Lack of coolant in the system (flow sensor malfunction)	Recharging the system, replacing the sensor
E03	No flame	Injector cleaning, gas supply, ignition system repair
E04	False evidence of the presence of a flame (spark breakdown to the sensor)	Removing water droplets from the board, insulating or replacing the sensor
E05	Exhaust temperature sensor break	Restoring contact
E06	Exhaust temperature sensor short circuit	Replacing the sensor
E07	Broken DHW temperature sensor	Restoring contact
E08	Short circuit of DHW temperature sensor	Replacing the sensor
E09	Fan failure	Device repair or replacement
E10	Malfunction of the smoke removal system	Cleaning the chimney, restoring the working condition of the smoke removal system
E13	Short circuit of the OM flow sensor	Replacing the sensor
E15	Malfunction or failure of the control board	Board repair or replacement
E16	Exceeding the permissible boiler heating temperature	Cleaning the heat exchanger from scale, replenishing the system with water
E18	Smoke sensor overheating	Sensor repair or replacement
E27	Short circuit or break in the air pressure sensor	Replacing the sensor

Useful video

You can learn more about how to connect, configure and start this boiler in this video:

Conclusion

The care and quality of tuning of Baksi boilers ensures the efficiency and durability of the equipment and the entire heating system as a whole.

The operation of the boiler largely depends on the gas supply mode and the specified temperature range, which, in turn, are selected based on the climatic characteristics of the region and the amount of heat loss in the room.

The main condition is the accuracy of the adjustments, the absence of frequent and unqualified intervention in the operation of the unit.

Properly performed settings ensure the durability of the equipment and a comfortable microclimate in the room.

In contact with

Autonomous home heating is an attractive option for any owner.

If one device also provides hot water supply, then this option is optimal under any conditions.

There are a lot of installations that perform such functions and have high performance qualities.

A striking example of such heating devices is the Baxi Main 24 Fi double-circuit gas boiler, which has extensive capabilities and has been specialized for Russian technological and climatic conditions.

The unit is highly rated by users and deserves detailed consideration.

Famous Italian company Baxi, part of the BDR Thermea Group, has been working on the manufacture of heating equipment for more than half a century.

During this time, many technological methods have been developed that allow us to produce high-class products that meet all the requirements and standards accepted in Europe. Baxi Main 24 Fi is one of the models of double-circuit wall-mounted boilers using natural or liquefied gas as fuel.

Almost 70% of the company's products are intended for export, so manufacturers take into account the conditions of the upcoming work. The units undergo special training to comply with Russian conditions.

They tolerate changes in gas pressure and are able to compensate for a slight decrease in voltage in the electrical network.

Among Russian users, Baxi products are deservedly in high demand and preference.

Peculiarities

Baxi Main 24 Fi is a double-circuit boiler capable of simultaneously supplying hot water and heating the coolant for heating systems or underfloor heating. The numbers 24 indicate the boiler power (24 kW), and the letters Fi indicate the turbocharged combustion chamber.

It has a closed design that ensures tightness and cleanliness of the surrounding air.. The combustion mode is maintained by a fan supplying air flow to the burner.

The main feature of the Baxi Main 24 Fi boilers is the bithermal heat exchanger. Unlike other series, not two separate, but one combined version was used.

It is a design in which another tube is installed inside the tube, having a shape close to a rhombus.

By outside the coolant flows, and the inner, rhombic shape is hot water. OB flow receives thermal energy from the burner, and DHW - from the coolant. This design makes the boiler design simpler, more compact, and simplifies adjustment and configuration.

What functions does it have?

Set of functions of the Baxi Main 24 Fi boiler:

Heating of coolant and hot water.
Organization of circulation of the heating agent along the heating circuit.
Self-diagnosis system.
Convenient controls.
Automatic flame ignition.
Thermometer and pressure gauge showing the pressure and temperature in the system.
Power indicator.

NOTE!

The functionality of Baxi boilers is almost the same for all models. There are only small features that do not represent a fundamental difference.

Boiler technical characteristics

For convenience and ease of consideration, we will provide the parameters of the Baxi Main 24 Fi boiler in the form of a table:

Advantages and disadvantages

The advantages of Baxi Main 24 Fi boilers are:

European quality equipment, compliance with all certificates and regulations.
Environmentally friendly equipment.
Compact, attractive appearance.
The ability to provide heating of the heating agent in parallel with the supply of domestic hot water.
Low gas consumption.
Ability to serve a fairly large area.

The disadvantages include:

Difficulty in washing the bithermic heat exchanger.
High cost of spare parts.
Vulnerability to voltage surges.
For maintenance or repair, you must invite a specialist.

Both the advantages and disadvantages of the Baxi Main 24 Fi boiler are due to design features. Most of them are common qualities of gas boilers.

Construction of the Baxi Main 24 Fi gas boiler

The main elements of the boiler design are:

Single bithermic heat exchanger.
Closed type gas burner.
Expansion tank.
Turbocharger fan.
Circulation pump.
Three-way valve.
A system of sensors connected to the control board.
Connecting pipes, connecting pipelines.

The operation of the boiler is to heat the coolant using a heat exchanger and a gas burner. The outgoing OM is mixed with the colder return flow, obtaining the specified temperature parameters.

At the same time, hot water is heated in the heat exchanger, passing through the inner tube and receiving energy from the hot heating agent. The combustion mode and the removal of fuel combustion products are provided by a fan receiving Fresh air from the outer pipe of a coaxial chimney.

All processes are monitored by a system of sensors, which, when problems occur, signal to the control board and display one or another error code on the display.

Almost all processes occur automatically, user intervention is minimal and is aimed only at adjusting the operating mode.

For which rooms is it best suited?

Baxi Main 24 Fi boilers are designed and designed for use in residential premises - houses or apartments of the appropriate size. They are often installed in office or public spaces.

Such units are not recommended for use in industrial workshops, since the specifics of the work will be too harsh and will cause rapid failure of the unit.

The declared area of the heating circuit is 240 m2, although in practice it is not recommended to use this model for rooms larger than 200-220 m2 due to the gradual decrease in the boiler's capabilities resulting from contamination, the appearance of scale and general wear and tear of the unit components.

Startup instructions

After delivery, installation of the boiler in the designated place and connection of all communications, it is necessary to carry out the initial start-up of the boiler.

Procedure:

Fill the boiler and system with water. It is necessary to set the pressure to about 0.7-1 mbar using the supply tap or drain. The circuit should be filled slowly so that the air has time to bleed out. The mode switch must be set to “0”.
Turn on the power.
Open the gas tap.
Set the switch to “summer” or “winter” mode.
Turn the burner regulator (turning it clockwise increases the temperature and counterclockwise decreases it). At the same time, the sound of water movement and the noise of the burner will become audible.

NOTE!

The process may not start the first time due to the presence of air in the system. In such cases, the procedure is repeated until the boiler starts up normally.

User manual

The boiler operates automatically, requiring virtually no user intervention. The owner is required to periodically perform maintenance using the services of an invited specialist from the service center.

To improve operating conditions and extend service life, it is recommended to install a voltage stabilizer and a water softening filter. It is especially important to improve water quality if the power comes from your own well and standard water treatment has not been carried out.

Before starting operation, you should carefully study the user manual to understand important points and eliminate unacceptable actions.

Basic faults and troubleshooting methods

All malfunctions that are possible during the operation of the boiler are immediately detected by the corresponding sensors and displayed on the display in the form of a corresponding code.

The user's first reaction when an error occurs (if there is no visual confirmation of the problem) should be to reset the error by pressing the R button and holding it for 3 seconds. If the error occurs again, you need to call a technician.

Owner reviews about the model

Let's consider the opinions of people who operate Baxi Main 24 Fi boilers in their homes.

Such information is of the greatest value, since it does not pursue any commercial or advertising purposes:

(( reviewsOverall )) / 5 Owner rating (7 votes)

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