Construction of Baksi boilers
Let's look at the basic design of the Baxi boiler. The basic diagram is printed in the operating instructions for each specific model, but the main components will be the same.
There is a chimney at the top. Immediately below it there is a fan with a Venturi tube and an exhaust hood for removing combustion products. Below is the primary heat exchanger, which looks like a radiator and coil, a little to the left is a safety thermostat and an NTC heating temperature sensor.
In the center there is a combustion chamber, inside which there is a burner and electrodes for ignition and ionization of the flame. A gas train with nozzles is connected to the modulation burner, into which gas flows from the gas valve.
On the right side, a pipe goes down from the heat exchanger, connected to the expansion tank and circulation pump. The pump is equipped with an automatic air bleed valve. It ends at the bottom with a tap for draining the coolant from the apparatus and a pressure gauge; it receives water from the heating system of the house.
A pipe is lowered on the left side, on which a hydraulic pressure switch is installed and a safety valve at the end. Water comes out of it into the heating system. These pipes are connected to each other by an automatic bypass.
In double-circuit models, a secondary plate heat exchanger, a DHW priority sensor and a three-stage valve are additionally installed. The Baxi Luna 3 Combi and Nulova 3 model series are equipped with a small-volume indirect boiler.
Main 5 boilers are equipped with a bithermic heat exchanger, which simultaneously heats both running water and coolant. This is realized due to the fact that inside the tube through which liquid from the heating system flows, there is another tube of a smaller diameter through which tap water flows.
An electronic control board is installed on the front. The electrical diagram printed in the operating manual shows where all the boiler elements and sensors are connected to. Using it you can understand how the electrical part of the equipment works.
A steel casing is installed outside, on which there is an electrical control panel with power buttons and operating mode selection buttons. Modern models are equipped with a display to display technical data and error codes in the event of a malfunction.
Model features
The double-circuit boiler Baxi Eco Four 24 F (Baxi Ecofor 24 F) has a closed (turbocharged) combustion chamber. This is evidenced by the presence of the letter “F” in the name. There is a separate heat exchanger, the primary one (for heating the heating system coolant) is made of copper, the secondary one is plate-type, made of stainless steel.
The boiler power is 24 kW, which allows servicing an area of 240 m2. (in practice, it is recommended to calculate the capabilities of the unit for 200-220 m2).
The hydraulic group, gas part and all supply pipes are made of brass, resistant to corrosion or other external influences.
Principle of operation
Let's figure out the operating principle of the Baksi gas boiler. The coolant enters the apparatus system through the right pipe, driven by a circulation pump. Next it enters the heat exchanger.
When the liquid temperature drops below the one set in the control panel settings, the gas valve supplies fuel to the burner and the ignition electrode is activated. A flame ignites and heats the heat exchanger. When heated, the coolant expands and its excess enters the expansion tank.
The coolant exits through the left pipe, passing through the temperature sensor. When the water has heated to the set level, the gas supply to the burner is cut off. An external room thermostat can also regulate the operation of the boiler; in this case, the operating cycles will be tied to the room temperature.
In dual-circuit series, a three-stage valve changes the priority of domestic hot water and heating depending on the needs of the consumer.
Baxi Three Stage Gas Valve
The wiring of such a boiler is quite simple, since all functional elements are configured and located inside the housing. You need to calculate the required number of radiators, draw a diagram, and then connect them to each other and bring all the pipes to the device.
Series and their features
To be able to determine the type of boiler by its name, let’s look at the markings. The symbol “F” or “Fi” indicates that the boiler is turbocharged with a closed combustion chamber. Atmospheric vehicles have the letter “i”. The word “Comfort” means that the kit comes with a remote control panel; the mark “Air” means that this panel is remote.
The first number after the name of the series reflects the generation of boilers, and the second number reflects the power. For example, the fourth generation Baxi Eco Four 24 F with a closed combustion chamber and a power of 24 kW.
Boiler Baxi Eco Four 24 F
The fifth generation Main 5 series is the next stage in the development of the Baxi Main Four 240 F boilers. It includes three wall-mounted models with a power of 14, 18 and 24 kW. All of them are double-circuit due to the installed bithermic heat exchanger, and have electronic protection against scale. Equipped with a closed combustion chamber. The configuration is very adaptive, the boiler operates at a reduced gas pressure of up to 4 bar and power voltage drops from 170 to 270 V.
Boiler panel Baxi Main Four 240
The development of the outdated Eco 3 Compact series became the ECO Four (Ecofor), Eco 4s and Eco 5 Compact lines. Baxi Eco Compact devices are small in size due to the optimized internal arrangement of the main components. They include single-circuit and double-circuit devices with a secondary stainless steel plate heat exchanger.
Boiler Baxi Eco Compact 4s
The hydraulic system includes an economical circulation pump with automatic air bleed. The lines include 18 models with closed and open combustion chambers with power from 14 to 25 kW. They have a liquid crystal display. Eco 5 Compact devices can be connected to an integrated solar circuit.
The Baxi Four Tech (Fortech) line is a cheaper analogue of the Eco Four series due to plastic water supply pipes. The Luna 3 and Luna 3 Comfort editions offer single and dual circuit units from 24 to 31 kW. Can run on liquefied gas. The burners have continuous electronic flame modulation.
Boiler Baxi Four Tech
The electronic board has a self-diagnosis function and weekly programming capabilities. The Comfort series is equipped with a remote control panel with a built-in room temperature sensor. In Luna 3 Combi devices, DHW is provided by a built-in eighty-liter indirect heating boiler made of Combi 80 stainless steel.
Baxi Slim floor-standing boilers have very compact dimensions, a stylish gray body with a black control panel and are equipped with a cast iron heat exchanger. Slim 2 models have an indirect heating boiler of 50 or 60 liters.
Description Baxi Eco Four 24 F
The brainchild of the Italian company Baxi, part of the BDR Thermea industrial group, the double-circuit wall-mounted gas boiler Baxi Eco Four 24 F is a 4th generation model.
The unit has the ability to simultaneously organize heating and circulation of coolant in the heating system and supply hot water for domestic needs . Continuous modulation (change of parameters) of the flame is carried out depending on external conditions, according to the signal from the external temperature sensor.
The case has a large and convenient LCD display that allows you to see all the displayed readings of the self-diagnosis system or current settings.
Experts and users note the high quality of assembly; all components are made either exclusively for this model or are samples from well-known European companies.
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 a range of 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.
Connecting a room thermostat
Most models of Baxi boilers have the ability to connect a room thermostat. The idea is that the boiler will turn on only by a signal from the thermostat when the air temperature in the room drops below the set one.
Of course, everything is quite individual, and a lot depends on the type and balance of the heating system as a whole, and using only one room thermostat will have a certain inertia.
Programmable thermostats allow you to flexibly set different temperatures throughout the day. Reducing the room temperature by 1 degree throughout the year will result in gas savings of about 4-5%.
In some EU countries, where energy efficiency issues are more meticulous, installing a room thermostat is a mandatory requirement.
Advantages and disadvantages of the model
The advantages of Baxi Eco Four 24 F boilers include::
- High quality manufacturing and assembly.
- Compliance with all certification requirements and standards.
- The boilers have been adapted to Russian conditions and are capable of operating at low gas and water pressures, with fluctuations in power supply voltage.
- It has its own security system.
- Possibility of connecting an external temperature sensor and a room thermostat.
- The design contains two heat exchangers.
- To solve emerging problems, there is a network of service organizations.
Disadvantages are considered:
- Relative high cost of units and components.
- The volume of expansion tanks is only 6 liters.
- The control board is sensitive to changes (especially surges) in the mains voltage.
IMPORTANT!
Both advantages and disadvantages are common to all devices of this type and apply not only to this model.
Zonal control system
Such a system provides for individual temperature control in each room separately by installing controlled thermal heads on each radiator. That is, depending on the air temperature in a particular room, the amount of coolant in the radiator will be regulated, and the boiler will turn on only when necessary. The use of such regulation will provide maximum savings (about 30%) and comfort in the room. The only disadvantage of such a system is its cost.
Basic settings of gas boilers
You can start the Baxi ECO series gas boiler as follows:
- open the gas tap;
- set the mode switch to summer or winter time;
- open the shut-off valves of the heating and hot water system, and then light the burner;
- To increase the temperature, turn the knob to the right; to decrease it, turn it to the left.
When you first start the heating device, it may not turn on immediately - until the air leaves the gas pipes. Therefore, if ignition does not occur the first time, you should try again several times.
When operating in summer mode, the gas boiler provides only hot water production. Also in this mode, frost protection and anti-blocking of the pump will be active.
You can regulate the heating temperature using a connected thermostat or a knob on the panel.
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Note! The 1.240 Fi model does not have a DHW regulator.
The gas valve of the unit is equipped with an electronic heating control system, which operates depending on the position of the temperature regulator and the amount of water selected from the taps.
To save electricity and gas in summer, it is recommended to set the handle to the “Comfort” position.
Savings and regular equipment maintenance
The basic structure of a traditional gas boiler is almost the same, regardless of the manufacturer. Thermal energy from gas combustion is transferred to the coolant through a heat exchanger. There can be either one or two heat exchangers in the boiler. During operation of any gas boiler, the heat removal surface becomes contaminated with soot deposits from the outside and scale from the inside.
From practice, we can say that it is extremely rare that the system is filled with special prepared water or the water supply system is equipped with a water treatment system. This is especially true for apartment buildings, in which the owners receive a ready-made heating system along with the apartment.
The formation of scale and soot on the walls of the heat exchanger will gradually reduce the heat transfer performance, and more energy will be consumed for heating.
Therefore, annual regular maintenance will definitely affect the efficiency of equipment operation for the better! This especially applies to boilers with bithermic heat exchangers, which, due to their design, are difficult to clean.
BAXI gas boiler service menu commands
In the service menu lines you can change some settings for the operating mode parameters of the Baxi gas boiler.
BAXI Main Four | BAXI Eco Four | BAXI Four Tech:
Line F06 - setting the maximum temperature (°C) of the heating system: 00 = 76°C (burner switches off at 80°C); 01 = 45°C. Factory setting = 00.
Line F08 - maximum net power of the heating system (0-100%): 80 - natural gas; 100 - liquefied gas. Factory setting = 80.
Line F09 - maximum useful power of the hot water supply system (0-100%): 80 - natural gas; 100 - liquefied gas. Factory setting = 80.
Line F10 - minimum useful power of the heating system (0-100%): 20 - natural gas; 00 - liquefied gas. Factory setting = 20.
Line F11 - burner waiting time between two starts (01-10 min): 00=10 sec. Factory setting = 03.
Only BAXI Main Four:
Line F14 - test to check the correct position of the hot water sensor: 00 - off; 01 - always on. Factory setting = 01.
Line F16 - minimum useful power of the hot water supply system (0-100%): 20 - natural gas; 00 - liquefied gas. Factory setting = 20.
BAXI Main 5:
Line F06 - Setting the maximum supply water temperature to the heating circuit (°C) 000=76 °C (burner shutdown at 81 °C) 001=45 °C (burner shutdown at 50 °C). Factory setting =000.
Line F08 - Max. power in heating mode (0-100%). Factory setting for boiler model 24F =055; for model 18F =100; for model 14F =050.
Line F09 - Max. power in DHW mode (0-100%). Factory setting =100.
How to set the maximum and minimum gas pressure?
The maximum gas pressure is adjusted as follows:
- Unscrew the screw on the fitting and connect the pressure gauge;
- open the gas tap and set the mode switch to the “winter” position; it is necessary to ensure that the unit is operating at maximum power; You can also set high performance in DHW mode - to do this, set the hot water supply regulator to maximum and turn on the tap with a flow rate of 10 l/min;
- check the pressure on the burner using a pressure gauge; the indicator must correspond to the maximum pressure specified in the characteristics of the unit;
- if necessary, you can remove the cap from the valve and rotate the adjusting screw to set the appropriate pressure value.
You can also set the minimum pressure :
- set the mode switch to position “0”;
- disconnect the contacts of the temperature sensor;
- move the handle to the “winter” position;
- connect the contacts of the temperature sensor;
- using the screw on the gas valve, set the minimum power according to the technical characteristics of the unit;
- turn off the boiler and disconnect the pressure gauge, tighten the screw on the fitting.
Design features of Baxi gas boilers
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Errors in Baxi gas boilers and how to eliminate them -
https://oteple.com/oshibki-gazovyx-kotlov-baxi-i-sposoby-ix-ustraneniya/
In small apartments, especially in the off-season, it is recommended to set the gas boiler to the minimum operating mode. For Baxi units, the lowest power is 40% of the maximum. For example, for a 24 kW model, the minimum performance will be 9 kW.
To convert a Baxi gas boiler to another type of fuel, simply change the nozzles in the burner. After switching to another gas, you will have to adjust the maximum or minimum power again.
How to get rid of “clocking” of a gas unit?
If the power of a gas boiler exceeds the required one, a problem such as “clocking” often arises - frequent switching on and off. This has a very negative impact on the condition of the device components and leads to increased wear and tear, as well as excessive fuel consumption.
For Baxi gas boilers, you can set the minimum duration between starts. The factory settings provide an interval of 3 minutes, it is possible to increase this value to 10 minutes.
If your Baxi unit model is not equipped with a thermostat, it is recommended to purchase and connect it. Controlling a gas boiler using this device will save fuel and prevent increased wear and tear on equipment.
Installation subtleties and configuration nuances
We have already noted that the installation, connection, first start-up and adjustment of the operating parameters of the Baksi gas boiler should be carried out by a specialist from the organization with which an agreement has been concluded for the supply of blue fuel and for the maintenance of gas processing units. After applying your own efforts to implement the above steps, you will no longer be able to benefit from the warranty.
All steps of the installation cycle of work are documented. Boiler owners are given papers indicating who installed and connected what. If a malfunction is detected, the contractor will deal with it. If a manufacturing defect is detected, which is extremely rare, all replacement and repair problems are resolved by the gas service.
Please note that these gas heat generators can be installed in heating circuits with any heating appliances. Heated floors are no exception, but for them to work, the boiler power should be set to 65ºC at the inlet to the supply pipe. They are suitable for both one- and two-pipe heating circuits, for tee and radial options.
Steps to connect the boiler to communications
Let us list step by step what gas workers must do during the installation and connection of a Baksi gas boiler.
Conventionally, the entire cycle of work can be divided into three main parts, these are:
- Preparation of building structures and communications. Strengthening structures as needed. Laying lines for connection, if necessary.
- Hanging the boiler on the wall and connecting to communications. Purely mechanical work that requires strict adherence to the diagram and recommendations of the unit manufacturer.
- Performing the first launch and setting up operating parameters. Carrying out the first launch is the responsibility of representatives of the gas company. The user can set the settings himself.
All actions are carried out in a thoroughly thought-out and clearly worked out manner by the boiler manufacturer.
The manufacturer of equipment for heating coolant and hot water supplies the installation diagram with the unit. When connecting communications, you must strictly follow the instructions
The preparatory period includes:
- Inspection of the premises to confirm the possibility of installing equipment using gas.
- Drawing up a contract for the work, attaching a connection diagram for a gas boiler with the Baksi logo and an accurately calculated estimate. It should indicate the prices for the work and the cost of materials purchased by the company for the installation of the thermal energy generator.
- Cleaning used heating and hot water systems from mineral deposits and contaminants deposited on the walls of pipelines and devices during operation. Produced by any available chemical.
- Laying communications to the boiler installation site. Only heating and gas supply lines are connected to single-circuit ones, and heating, gas and water supply lines are connected to double-circuit ones.
- Installation of shut-off valves on each communication line. They are needed to shut down the unit in case of repair, accident, or replacement.
- Installation of a dirt filter on the return pipe of the heating system. It is required to collect mineral deposits that may remain after cleaning and will form when the water heats up.
- Connection of a separate power supply line. It is used to ensure that other electrical equipment is not connected in parallel with the device, which creates the risk of a short circuit with fire hazardous consequences.
Connection of communication systems is carried out with the mandatory use of seals. All work must be carried out in accordance with plumbing standards.
The optimal location of the electrical outlet relative to the gas boiler is 30-50 cm from the body. Its installation and laying of the power supply branch is carried out in accordance with the PUE. In addition, the equipment must be grounded using a three-core cable with a grounding wire.
Since the operation of the hot water heater and coolant from Baksi requires power, it is necessary to lay a separate power line to the installation site of the boiler. It should pass at a distance of 30-50 cm from the body
The list of measures for installing the boiler includes:
- Boiler mounting. It is made on a wall with sufficient load-bearing capacity. Fix the unit with anchor bolts; if necessary, cover the wall with non-combustible finishing if it is made of flammable materials.
- Connecting pipelines to the boiler. It is carried out in accordance with the diagram attached to the technical passport by the manufacturer.
- Chimney assembly. The connection of chimneys to Baksi boilers is made only with fasteners supplied by the manufacturer of the unit.
For turbocharged models equipped with a closed combustion chamber, either a coaxial pipe or a regular pipe is connected together with an air supply pipe to the closed burner. The first option is simpler, but more expensive in terms of purchasing a coaxial system. However, it is not a fact that installing two channels for air supply and smoke removal will ultimately cost less.
A conventional chimney is connected to atmospheric models with an open combustion chamber. The products of blue fuel processing are discharged either through a wall into the street space or into the collective chimney of an apartment building.
Chimneys are connected to gas boilers with the Baksi logo using the fasteners included with the device. Turbine models are equipped with coaxial types of chimneys, atmospheric ones are equipped with conventional ones, which are recommended to be supplemented with condensate collectors
Chimney elbows allow this channel to be brought out in any direction through the wall. Let us note that exits through the walls are mainly in high-rise buildings, the number of storeys of which does not exceed five levels. In private houses, it is preferable to build vertical smoke channels.
Upon completion of the installation work, they proceed to the first launch and configuration.
Launch and commissioning activities
For the first start-up, the gas boiler and the circuits it processes are filled with the medium transported through them. Unlike most wall-mounted models, which can only heat water as a coolant, Baksi units can be filled with antifreeze - an aqueous solution of propylene glycol with antifreeze additives.
The process of filling the boiler and heating circuit with coolant is carried out through a pipe located in the lower part of the unit. After filling, bleed off the air, then, if necessary, replenish the coolant volume in the same way.
After connecting the boiler to the communication lines, it and the associated systems are filled with water. Then they connect to the electrical network and open access to gas. Now you can configure
Installation and installation of the wall-mounted boiler Baxi Ecofor
https://youtu.be/Zr3oqyBK8mMhttps
https://youtu.be/4Prxy-PLxBQ
Before installing the Baxi Ecofor boiler, you must:
— Make sure that the unit is adjusted for operation with the required type of gas. This information is displayed on the packaging and on the boiler plate.
— Make sure that the chimney has sufficient draft, there are no narrowings, and there is no entry of foreign combustion products, unless the chimney is specially designed to operate several devices.
— When connecting a smoke exhaust pipe to an existing chimney, check that the chimney is cleaned, because during operation of the boiler installation, soot particles can separate from the walls of the chimney and block the exit of combustion products.
Installation work on a wall-mounted gas boiler Baxi Eco Four 24 f
— Select a location for the boiler, then attach the template to the wall.
— Connect the pipelines to the water and gas inlets marked at the bottom of the template.
— It is recommended to install two G3/4'' shut-off valves at the entrance to the central heating system and the return from it. These taps will allow for service maintenance without draining the entire system.
— It is strongly recommended to install a strainer and a settling tank (“sludge trap”) on the return pipe from the system to collect deposits that may remain in the system after cleaning.
— Connect the chimney and air duct according to the instructions given in the following sections.
— When installing a boiler with an open combustion chamber of the Baxi Ecofor 24 / 24f / 1.24 models, connect it to the chimney using a metal pipe that is resistant over time to mechanical load, heat and the effects of combustion products and condensate.
The boiler is specially designed to be connected to the chimney and air duct with a coaxial pipe. It is also possible to use separate pipes using a separation kit.
When using separate pipes, it is also possible to combine them at the final section with a special coaxial tip (terminal).
Fig.1. Dimensions for connecting Baksi Ecofor boilers
Adjusting the opening in the air intake pipe:
— This setting is needed to optimize the performance of the Baxi Eco Four 24 / 24f / 1.24 boiler and combustion parameters.
— The air intake coupling can be installed to the left or right of the chimney; it can be rotated to adjust the air flow depending on the total length of the air duct and chimney.
— To reduce the air flow, turn the clutch counterclockwise, to increase the air flow, turn it in the opposite direction.
— For optimal settings, you can use a combustion products analyzer, which measures the CO2 content in combustion products at maximum power.
Connecting the Baxi Ecofor gas boiler to the power supply
The electrical safety of the boiler unit is guaranteed only if it is properly grounded in accordance with current regulations. Using the supplied three-wire cable, connect the boiler to a single-phase 230V AC network with grounding.
Make sure the correct polarity is maintained. Use a two-pole switch with a distance between open contacts of at least 3 mm. When replacing the network cable, it is recommended to use a cable with a cross-section of 3×0.75 mm2 and a maximum diameter of 8 mm.
Work on connecting to the electrical network:
— use a two-pole switch to turn off the power supply to the boiler;
— unscrew the two screws securing the control panel to the unit;
— turn the control panel;
— to access the contacts, remove the cover.
2A fuses are built into the terminal block (to check or replace them, remove the black fuse holder).
Compact thermostat connection:
— open access to the power supply terminals;
— remove the jumper from terminals 1 and 2 of the terminal block;
— pull a cable of two wires through the cable clamp of the boiler and connect the cable coming from the thermostat to the terminals.
— turn on the power supply to the unit.
Conversion to another type of gas
To convert the Baxi Ecofor boiler to another type of gas, you must perform the following operations:
— Open and remove the front panel of the boiler.
— Replace burner nozzles. When replacing burner nozzles, ensure that they are fully tightened using the appropriate copper gaskets; When replacing injectors, you need to select them for the desired type of gas.
— Change the voltage on the modulator by setting parameter F02 depending on the type of gas.
— Perform all operations on gas pressure settings.
— Close the electrical box.
— Place a label on the boiler that corresponds to the type of gas used and the adjustment made.
— Reinstall the front panel.
Recommendations for reducing operating costs
If all operational settings are made in accordance with the tabular data given by the manufacturer, then the equipment will consume energy very economically, generating the necessary heat in the volume required by the owners.
To do this you should:
- For systems with radiators or thermosiphons, select the temperature of the coolant at the boiler outlet +60ºС. It is worth increasing it only if, during operation of the unit, comfortable heat in the room was not obtained.
- Adjust temperature conditions in accordance with the manufacturer’s instructions and the purpose of the room. To heat bedrooms and other rarely visited rooms, the heating temperature can be set below average.
- Do not exceed the temperature background recommended by the manufacturers of the heating devices included in the circuit.
- Use indoor and outdoor temperature sensors that record temperature increases/decrease. The thermostat connected to them will independently start/stop the boiler as needed.
- Adjust the temperature of the coolant by the hour using a timer. At night, for example, it can be lowered by 3-5 ºС.
It should be remembered that by increasing the temperature in the room being treated by just 1º, we immediately increase costs by approximately 6%.
In order not to constantly change the coolant temperature settings during the difficult autumn-spring period, it is better to install an outdoor temperature sensor. If you don’t find a suitable model or don’t have the funds to buy the original, you can build a homemade device like this:
In case of prolonged absence, it is better to disconnect the boiler from the power supply, but you should not turn off the frost protection system. It is turned off only for the summer period, during which the heating function is abandoned, completely turning off the single-circuit model and switching to the dual-circuit version for the supply of hot water.
In order to save on heating, you should not cover radiators with screens and heavy curtains. They will disrupt normal air circulation and force the boiler to work at full capacity for no apparent reason.
Also, the equipment manufacturer does not recommend micro-ventilation in rooms, keeping the transoms constantly ajar. It is better to open the window wide and ventilate in one gulp than to artificially lower the readings of the room temperature sensor for a long time. It has been proven in practice that it is more economical.
When using the water preparation function, it is better to initially select a temperature that is comfortable for use, without counting on mixing heated and cold water in the mixer. Believe me, thanks to this solution, the thermal energy generated by the generator will not be wasted. In addition, limescale will not settle on the inner walls.
Possible errors and their elimination
Explanation of errors
The manufacturer's instructions will tell you how to start the equipment correctly. It will function properly only if there is protection from voltage fluctuations and a ground line. Special mechanical filters are also required, because... remove solid impurities from water. If installation technologies are violated and there are breakdowns on the line, boilers may produce errors.
Using the self-diagnosis system
All Baxi devices have a self-diagnosis function. Failure data is displayed, the user deciphers the error code according to the instructions and takes action. The following may appear on the monitor:
- Index E and numbers 01 – no ignition. The sensor connection and gas supply are checked. Press R and hold for 2-3 seconds.
- E02 - the thermostat has tripped.
- E03 – normal traction has disappeared.
- E05 – temperature sensor is broken.
- E10 – decrease in pressure, loss of board contacts, breakdown of the relay or pump sensor. The malfunction can only be diagnosed and repaired by a specialist.
- Errors E96, 97 and 98 – failure of the electronic board. It needs to be replaced.
Blocking information may also appear on the display. It occurs when overheating or loss of traction. The user will need to reset the boiler.
Other breakdowns
In addition to errors, equipment failures are observed:
- The burner does not operate at maximum power. The pressure is set incorrectly or the gas valve modulator is broken. To fix the problem, the owner must configure the settings according to the instructions.
- The device turns on, but immediately turns off. The reason is low gas pipeline pressure. It is necessary to make adjustments to 5 mbar.
- The coolant practically does not heat up. The problem can be resolved by testing the gas valve pressure.
- Popping sounds when igniting. There is not enough pressure, the distance from the igniter to the gas supply has changed. To eliminate damage, the gap is adjusted to 4-5 mm.
- Modulation doesn't work. The valve is being replaced.
- Failures in temperature sensor readings. New elements are being installed.
Work on replacing parts and disassembling the boiler should only be carried out by specialists.
The operation of gas boilers from the manufacturer Baksi is possible in apartments, private houses, and industrial areas. Due to the presence of several series and types of equipment, users will not have any difficulties selecting a model.
