Step-by-step instructions for operating a Baxi gas boiler: from installation to self-tuning and first start-up

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

The most successful options are boilers that provide heating of hot water, supply and circulation of coolant in heating circuits or underfloor heating systems.

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

Gas installations are considered the most efficient and economical, which significantly 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.

Installation of a Baxi gas boiler

Boiler installation consists of several stages:

1. Installing a water filter on the pipeline supplying water to the hot water system. It is imperative to install shut-off valves on both sides, making it possible to dismantle the filter for maintenance, repair or replacement.
2. 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. Mounting to plasterboard partitions or other structures that do not have sufficient load-bearing capacity is prohibited. Mounting to the wall is done using special brackets (sleds), which are included in the delivery set.
3. 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.

IMPORTANT!

It is strongly recommended to use a stabilizer to eliminate voltage surges.

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.

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 setting consists of determining the minimum and maximum gas pressure and the exhaust temperature range, 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.

Technical characteristics of baxi Eco Four 24 F

Baxi Eco Four 24 F can have a minimum power of 9.3 kW, and a maximum of 24 kW. The efficiency of the device can reach 91.2%.

When using natural gas, 2.78 m3 per hour will be consumed. If you use liquefied gas, the consumption will be 2.04 kg per hour.

The chimney diameter is 12 cm, and the expansion tank has a volume of 6 liters. The power consumption of the equipment is 80 W. The boiler can only operate from a 220 V network. It is worth noting the advantage of the device - silent operation. The noise level is 29 dB.

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, paying special attention to the 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 .

Download instructions

Download instructions for Baxi boilers.

Tips for DIYers

The benefits of installing a thermostat are obvious. The payback of the devices is also beyond doubt. Nevertheless, the desire to save money on installing such a useful device still remains strong. This often encourages home DIYers to do everything themselves. And not only to install the device yourself, but also to assemble it from scrap materials.

Theoretically, it is possible to make a thermostat with your own hands. To do this, you will need a thermistor that reduces resistance when heated. Then another resistor is connected to the network, with the help of which the temperature will be programmed. The 2I-NOT element will operate in inverter mode, and voltage will be supplied to it. A capacitor is connected to it and to the trigger. To control the relay, the galvanic isolation on the triac is enhanced. The device can be made either on a mole rat or on a printed circuit board.

Using such a simple circuit, you can assemble a thermostat for almost any boiler. But is it worth interfering with the operation of high-tech equipment? It is up to the home owner to decide. Experts do not advise experimenting with homemade devices, especially since you can find accessories for any boiler on the market.

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”.
• Set the 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.

IMPORTANT!

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.

For which rooms is it best suited?

Double-circuit gas boilers are optimally suited for heating and hot water supply of private houses of the corresponding size. The use of these units in industrial or public buildings is impractical due to inappropriate working conditions and lack of proper maintenance.

Often such boilers are purchased with a view to the future and for the time being operated as single-circuit installations (only for heating premises). This approach is completely justified, since when the opportunity arises, you will only need to connect the appropriate pipelines, and the difference in cost is not too noticeable.

Often, users purchase Baxi Eco Four 24F boilers to organize heating of apartments with a much smaller area than intended by the design, expecting to obtain a large margin of safety.

Expectations are not always met, since abnormal operation is just as harmful to the unit components as overload.

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.

Model features

Baxi ECO Four 24 F is a double-circuit boiler with a closed combustion chamber and has two independent heat exchangers, so the load in the heating system does not drop during hot water supply.

The unit is equipped with a modern liquid crystal display, which visualizes the entire process of managing heat and power processes, recording operating parameters for temperature and pressure of the coolant and other controlled parameters.

The unit is equipped with a full set of auxiliary equipment: primary sensors of the heat supply system, a circulation pump, a centrifugal fan and an expansion tank with a pressure of 0.8 bar and a volume of 6 liters. The Baksi Eco For 24 boiler has connections for connecting a coaxial chimney with a diameter of 60-100 mm.

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.

Types of devices

The choice of a remote thermostat for a gas boiler is based on taking into account several characteristics, including the type of connection. Uninterrupted operation is ensured by contact of the remote module with the device that controls the operation of the gas boiler. From a constructive point of view, there are a couple of main options:

• cable models connected to a gas boiler via wires;
• wireless models with remote maintenance.

Mechanical

• durability;
• low cost;
• possibility of repair;
• resistance to voltage surges.

The main disadvantages of mechanics include not very precise adjustment and the likelihood of an error within 2-3 ° C, as well as the need to periodically adjust the indicators manually.

Electronic

In most cases, electronic thermostats for gas boilers are represented by a remote sensor with a display and a special control element responsible for the operation of the boiler. Currently, for this purpose, models with a timer are used that monitor the air temperature and change it according to the desired schedule, as well as electronic analogues. Main advantages of electronic devices:

• remote control;
• the smallest error;
• Possibility of installation in any room;
• adjusting the air temperature according to the schedule;
• the fastest possible response to temperature changes.

Almost instantaneous response to changes in indoor air temperature allows for significant savings in energy resources. The only disadvantages include the fairly high cost of such modern devices.

Programmable

The so-called “smart” equipment has decent functionality, which includes temperature control, hourly adjustment and programming according to the days of the week. Particularly popular are liquid crystal models, which have a very convenient and intuitive interface, as well as built-in Wi-Fi.

Important advantages of programmable models:

• the presence of a “day-night” function;
• significant energy savings;
• programming the mode for a long time;
• possibility of remote control of the entire system.

Gas heating boilers are equipped with devices with built-in SIM cards, which allows you to make adjustments using the most ordinary smartphone. The disadvantages of any programmable models include the rather high cost of these devices.

Wired and wireless

Wired thermostats typically have mechanical or electronic controls. Such devices are fixed only through a wired system designed to connect to gas heating equipment. The range of action, as a rule, does not exceed 45-50 meters. In recent years, programmable models of wired room thermostats have been increasingly installed.

Wireless devices include a working part for installation directly near the heating device, as well as a tracking element with a display. Sensors can be equipped with a touch screen display or push-button control. Operation is provided by a radio channel. The simplest models are capable of turning off or supplying gas. More complex devices also provide a special program for settings in order to make changes to the specified parameters.

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.

Safety Features

On the Internet you can see many positive reviews about Baxi Eco Foir 24 F gas boilers. The equipment has a self-diagnosis system and ionization flame control. The gas boiler produces a signal when it stops if it is connected to the dispatcher's console.

The system can be set to protect against blocking the pump, and it will turn on within 24 hours. When the water pressure is low, a signal is sent to the heating system using a pressure switch. A safety thermostat is installed in the primary heat exchanger.

Sources

• https://kotle.ru/gazovye-kotly/kotel-baxi-eco-four-24
• https://baltgazservice.ru/stati/gazovye-kotly/gazovyj-kotel-baxi-eco-four-24-f/
• https://ExpertKotel.ru/cat/baxi/baxi-eco-four-24-f
• https://izhkotel.ru/equip/14797.php
• https://1-teplodom.ru/tehniceskie-harakteristiki-i-opisanie-kotlov-baxi-eco-four-24-f-preimusestva-parametry-ustrojstv/
• https://expert-dacha.pro/otoplenie/kotly-ot/gazovye-k/proizvoditeli-gaz-k/gk-baxi/eco-four-24-f.html

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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.

Competitors

Table. Comparison with competitors and analogues Photo

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.

Criterias of choice

When choosing a sensor, you should consider the compatibility of a particular model with a thermostat. The technical parameters and operating conditions of the device should also be taken into account.

Temperature range

In the range of measured temperatures from room temperature to +55ºС - +80ºС, the temperature sensor must be:

• especially sensitive and “respond” to the slightest changes in temperature;
• respond with minimal delay to cooling/heating of the controlled environment.

Technical features

Before installing the device, you should consider some technical nuances. It is necessary to choose the correct type of device (submersible or fixed) and provide sufficient space for installation at the location.

Measurement conditions

It is necessary to create such conditions for subsequent measurements under which the negative influence of external factors on the accuracy of measurements would be minimized. For stable and correct operation, the device must be protected from:

• on the coolant body, moisture or dirt;
• drafts, place away from cold bridges;
• sunlight, protect from extraneous heat;

Sensor characteristics

When choosing a device, you should be guided by several selection criteria. The product should be selected taking into account the main technical characteristics and operating features:

• the need for power supply from an external voltage source;
• speed of response to changes in the situation transmitted to the control device;
• permissible measurement error range;
• Possibility of operation in the specific conditions of the serviced facility.

Service life, maintenance periods, need for calibrations

The warranty period for a thermal converter is usually 6 months from the date of manufacture, and the average service life is 8–12 years. Maintenance periods are determined by the manufacturer and are given in the accompanying documentation for the product. It is necessary to regularly perform temperature calibration (verification) of the temperature sensor on reference equipment. Typically, installation-free verification of the sensitive element is carried out once every 4 years.

Output value

The magnitude of the generated voltage of sensitive elements without an external source (thermocouples) is low and ranges from microvolts to millivolts. Therefore, the output signal is amplified before further processing.

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:

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.

Flue gas monitoring, Activation of the chimney cleaning function

Page 35

• Image
• Text

Luna 3 Comfort HT technician manual

35 gas wall boilers

24. Location of the ignition electrode and flame sensor electrode.

Fig.17

25. Exhaust gas control

25.1. Activation of the chimney cleaning function.

Enter the electronic board parameter programming function as shown in paragraph 21.

•

scroll through the list of parameters and select parameter OF 555.0

;

•

Set parameter OF 555.0 = 1

, then press the
OK
(the function will be activated);

Note

:
the CHIMNEY CLEANING
lasts 15 minutes, after this time the function ends automatically.
To exit this function before 15 minutes have elapsed, set parameter OF 555.0 = 0 or disconnect the boiler from the power supply. To control the flue gases, boilers with forced draft have two measuring points on the conical coupling.
One of them is located on the exhaust chimney and allows you to control the compliance of the exhaust gases with hygienic standards. The second measuring point is located on the air intake pipe and allows you to determine the presence of combustion products in the intake air when using a coaxial pipe system. At the measuring points the following is determined: - temperature of combustion products; — oxygen content (O

2

) or, conversely, carbon dioxide

(CO

2

);

— carbon monoxide (CO) content.

The supply air temperature is determined at the measuring point on the air supply pipe.

Attention

: at the end of the test, close the flanges with special caps

.

.

pad

waste gases

incoming air