How to adjust the gas valve on the boiler. How to configure the gas boiler? Increased pressure: gas supply crane adjustment

(It is performed if the measured pressure does not correspond to the table value or when switching to another type of gas)

Gas valve Sigma Setup

Turn off the boiler with the button on the boiler control panel.
By 1 - 1.5 turnover, turn the screw of the fitting "A" of the output pressure of the gas valve.
Attach the pressure gauge to the "A" stacker.
Remove the protective cap with the adjusting devices of the valve modulation coil.
Enable the boiler in the "Petrychist" mode.
After stabilization of the pressure (the indication of the power of the burner \u003d 100%) to make measurements and, if necessary, rotate the nut "C" to adjust the maximum gas pressure (see Putabulus attached to the boiler).
Remove one of the terminals "e" modulation coils, make measurements and, if necessary, turning the screw "D" to adjust the minimum gas pressure (cmtack).
Set the modulation coil terminal to the previous place and check the maximum gas pressure value.
Turn off the boiler.
Disconnect the pressure gauge from the "A" fitting.
Wrap the screw plug of the fitting "A".

Install and delight the protective cap.

Note: When rotating the nut "C", hold the screw

Sit 845 Sigma Gas Valve Winding Resistance

Gas equipment everywhere meets apartments and country houses. You independently regulate the technique by setting a comfortable room temperature. So you do not depend on utility enterprises, you can save fuel at your discretion. But the operation is really economical, the correct setting of the gas boiler is important.

How to set up the boiler with your own hands

Why do you need proper adjustment of technology:

To save resources.
So that in the room it was comfortable, to use hot water.
To extend the service life of the equipment.

You need to start with the right choice of the boiler, its power. Consider the features of the room: the number and area of \u200b\u200bwindows, doors, insulation quality, wall materials. The minimum calculation is carried out from heat losses per unit of time. You will learn more about this in the article "".

Gas boilers are divided into single-circuit and dual-circuit. The latter perform heating on the contour of heating and hot water supply (DHW). Single-mounted units provide only heating. Therefore, to obtain hot water, the boilers of indirect heating are installed.

By type of placement, the technician is outdoor and wall. The aggregates placed on the floor have greater power. Therefore, they are used for large areas (from 300 m²). Installation is carried out only in separate rooms (boilers). This is the Baxi models (""), Buderus (""), "", "".

Attachments ("Suite", "", "",) are perfectly placed in small apartments in the kitchen. Therefore, it is important to take into account all the nuances of the location. The comfort of living, as well as the durability of the boiler depends on the proper selection of parameters.

Power Setup

Heating force depends on the modulation of the gas burner. If you have chosen an electronically controlled device, then it turns on the thermostat that connects to the room thermometer. Adjustment occurs automatically: the thermometer measures the room temperature. As soon as it falls below comfortable, it gives a team to launch the burner or an increase in the strength of the flame.

In the usual mode, the thermometer controls the temperature only in one room. But if you install the valves before each radiator, the control will be in all rooms.

You can manually adjust the burner by exposure to the gas valve. This is relevant for atmospheric boilers with an open combustion chamber. So, in the models of Protherm "Cheetah", "Proterm Bear" The valve is regulated by the electric motor. To change the settings, you need to go to the service menu. Most often, this is done by a specialist, and the user performs the actions specified in the instructions.

But still we will tell you how to call a hidden menu for adjustment.

Before entering the menu and configure, do this:

Unscrew the cranes on the batteries.
On the room thermostat, set maximum values.
In the user settings, set the maximum temperature you are using in the laid frost. The burner is always disconnected when the indicators reach 5 ° C are more installed. For example, at +75 degrees, shutdown will happen upon reaching 80 degrees.
Coolant Cool up to 30 ° C.

For Protherm Gepard:

Hold down the MODE key on the panel. As soon as "0" appears on the display, set the value 35 by pressing "+" and "-".
Press MODE to confirm.
Once the d will light up on the screen. 0, enter the row number in the menu. Do it with "+" and "-" d. (Number). To adjust the maximum power of the burner, select D.53, minimum - D.52.
Use MODE to go to the option option. Change it "+" "-".
Installation receives automatic confirmation.
Return to the original menu - Hold Mode.

During the regulation using the panel, follow the change in the flame and the temperature rising.

For "Panther's Proterm" Actions differ:

Click Mode about 7 seconds.
Using the 2 keys (see on the picture above), enter the code 35.
Confirm input.
As soon as D.00 appears on the left side of the screen, use the buttons 2, enter the number.

Change the parameter on the right side of the screen using keys 3.
After confirmation, press MODE to exit the menu.

For models "Electrolux Quantum":

Disconnect the device from the network for a few seconds.
After switching on the knob, hold the red button for 15 seconds.
As soon as the display lights up P01, press the red key until P07 appears.

If the number 1 flashes after P07, then 38 ° C-85 ° C is supported. If 4 - 60 ° C-85 ° C is lit, 7 - 38 ° C-60 ° C.
Handle "+" "-" Adjust the desired value.
Disconnect the boiler for a few seconds. Now it will automatically support the specified parameters.

How to program technique Viessmann (Woman), Look at the video:

For Eurosit 630:

All actions described above are used to configure the device in heating mode. Many users face a problem when in the DHW mode from the crane there is water of unstable temperature. To fix this, use our recommendations.

Changes in hot water

To resolve the flow of water to comfortable indicators, it is required to reduce the power of the burner.

Open the mixer to switch the boiler to the DHW mode.
Set the temperature of 55 ° C.
Go to the service menu, as described above (for "Proterm").
Select D.53 parameter.
Press MODE.
After that, the maximum power will appear in the string. For example, take the indicator 17.

If you experiment and choose a minimum value at once - 90, then the water temperature from the crane will not be comfortable. I exhibit 80 and get an increase in the degree of water. Let's gradually increase the values \u200b\u200buntil you make a ship supply. In our case, the water reached +50 degrees, and the setting is 80. This is despite the fact that the factory was - 17. This is such a difference.

Valve adjustment SIT.

Automation of some units involves the presence of a gas valve type SIT. It is found in Vaillant models (Vailant) and "Proterm". The setting is carried out by rotating the bolts on the valve. To change power, you need to change the pressure. Normal is the values \u200b\u200bof 1.3-2.5 kPa.

To reduce the pressure, scroll bolts counterclockwise. To reduce the pressure in the DHW mode, you need to rotate the adjustment nut. Read more shown on video:

Valve bypass

If the batteries indoors are unevenly warmed up, increase the circulation rate of the coolant. To do this, scroll the bypass screw clockwise.

If, when you turn on heating in batteries, on the contrary, the liquid is noise, it means that reduce the coolant speed, rotating the screw in the opposite direction. To configure and measurements, use a pressure gauge or a digital diffmanenter. It will indicate a nominal pressure that should not exceed 0.2-0.4 bar.

Problems when starting

In the process of starting and operating gas equipment "Bosch", "Ariston", "Ferroli", "Oasis" problems may arise.

Take the boiler

With incorrect choice of power, excess cyclicity occurs. This means that the burner of the device is often turned on and disconnected, and the radiators do not have time to warm up. First, it leads to a rapid wear of the nodes and parts of technology. Secondly, a large amount of fuel is used.

To eliminate the phenomenon and reduce cyclicity, two methods are used:

Reduce the flame burner.
Increase the power of heating, including additional radiators in the scheme.

How to fulfill the first point, we described above. Sometimes it is necessary to mount additional batteries, although this is a fairly costly method.

Fistor does not work

If the ignition attempts in "Immergaz", "Korea Star" were not crowned with success, inspect the stall. He could clog out. The problem is eliminated by cleaning the item. You can wipe it with a dry cloth or use the solvent.

The gas valve is required to supply gas to the aggregate burner. Using the gas valve setting, you can adjust the volume of fuel supplied. This makes it possible to make an aggregate more economical or increase the power of the device. Thus, the user, depending on the situation, has the ability to adjust the performance of its aggregate.

Most gas units have a SIT valve. It includes the following items:

measuring gas pressure fitting at the exit of the valve;
adjusting screw minimal and adjusting nut of the maximum fuel consumption;
cap;
measuring fitting of pressure at the entrance.

The valve of the gas boiler consists of a locking and modulation coil. When the voltage is submitted to 220 V, the minimum gas volume is supplied to the burner in accordance with the factory settings. Then the voltage is transmitted to the modulating coil. The processor, depending on the operating mode (power), supplies a voltage with different modulation frequency, adjusting the amount of gas passing per unit of time.

To adjust the gas valve of the boiler to minimal power, you will need a differential pressure gauge, a wrench and a screwdriver. The setting process includes the following steps:

Remove the protective cap closing the valve differential screws.
Open the fitting for measuring the pressure of the gas supplied to the burner - counterclockwise rotate the locking screw by 1.5-2 turns.
Connect to the input fitting the hose of the pressure gauge.
Include heating mode and turn off one wire of the modulation coil - it is necessary that the valve gave gas to the burner at a minimum, which will correspond to the minimum power of the unit.
According to the pressure gauge testimony, set the minimum gas pressure on the burner. For this, the inner screw is rotated under the protective cap. At the same time fix the outer nut.

The dynamic pressure of the fuel at the inlet of the gas valve is in the range of 1.4 to 2.4 kPa. If the measurements have shown that the pressure goes beyond the specified limits, you need to cause gas specialists.

In the factory power range, it is not necessary to redigue the gas valve. This is required to translate the power unit below or higher than the indicators stated in the instructions. Often the valve setting is needed if the device performance does not match the heated area of \u200b\u200bthe house or apartment.

Setting the gas valve at the "tact" of the boiler

Such a problem as a "tact" of the gas boiler can be solved by adjusting the gas valve. It usually occurs if the power of the unit significantly exceeds the required area necessary for this area.

To exclude the "tact" of the device in heating mode, it is necessary to reduce the output pressure. This is performed by rotating the adjusting screw counterclockwise.

To stop the "tact" in the DHW mode, reduce the maximum pressure. This is solved by rotating the adjusting nut counterclockwise.

However, in more modern models, "tact" is eliminated by automatic. For example, setting up a gas valve boiler boiler takes place using clock lock:

hold a button with a wrench for 5 seconds;
select the duration of the intervals from 0 to 15 minutes using the buttons with the arms.

It is recommended that the settings of this kind carry out only the service center specialists, especially if the boiler is under warranty. Otherwise, if you spoil the valve, the company will reset the warranty and you will have to buy a new item.

Most often, gas boilers are used for the heating of a private house. They are characterized by high performance, efficiency and ease of operation. Comfortable operation of such a device is provided by a variety of devices that control the mode of operation. Thanks to automation, you can increase the efficiency of work, and ensure the safety and reliability of the unit. These factors are important. Many do not understand how to regulate and manage automation. Consider in our article the principle of operation, the security system, setting and troubleshooting the automation of the gas boiler.

Principle of operation of automatic gas boiler

Automation is a system of control and executive elements that are aimed at maintaining the specified modes and operational response to malfunctions in the heating system. Thus, the safe use of gas boilers is ensured with minimal human intervention in the processes that proceed in the aggregate.

Equipped with electronic and mechanical automatic devices that are needed to maintain safe operation.

Automation can be divided into two types:

Autonomous, which depend on energy supply;
Adapted, which work without an external source of electricity.

Consider every kind in more detail.

Work of energy-dependent devices

The work of energy-dependent automation is completely dependent on the receipt of electricity. Such a device monitors the fuel supply and the degree of heating through the opening and overlapping of the crane, thus, cost savings on the heating system. The electronic system functions based on information that comes from sensors to the control unit.

After processing data on the microprocessor and the command controller are fed to the boiler drives.

Automation performs the following tasks:

Turning on the device in automatic mode.
Opening or closing the gas supply system valve.
Regulation of the burner flame level using a thermal sensor.
Installed or emergency turning off the gas boiler.
Display on the screen of heating water, air temperature, etc.

In addition to the above functions, modern automation can perform many other tasks. For example, the protection of the system from a threshold valve malfunction, control and control of the work of the boiler, self-diagnosis, detection of failures in the operation of nodes and the protection of the boiler from freezing. Automation helps to identify a malfunction before it led to a gaseous boiler breakage.

The automation can work exactly only when the conditions are met:

Compliance with the necessary temperature regime;
No jumps on the network;
Lack of problems that are associated with a long service life.

If you do not comply with such rules, the automation will quickly fail.

The following devices can be attributed to the automation:

Thermostat for controlling the temperature regime in the room. Such a device is installed indoors, but connects to the gas boiler, which is arranged in this or other room. The thermostat controls the temperature in the room, and also regulates the operation of the heating equipment. When the temperature is reduced, the device sends a signal to a gas boiler that automatically starts its work.

The thermal sensor located indoors can be connected to a separate control unit. Then the room will be maintained in automatic mode. After the room is achieved the required temperature, the valve overlaps and the boiler stops its work. Thus, gas saving occurs.

Daily programmer. The device regulates the operation of the gas boiler, but has more opportunities than the previous device. You can customize the operation of the boiler for 24 hours using a daily programmer. At a certain time, it is possible to set different heating temperatures. Most devices automatically repetition cycle occurs, so it is necessary to change the program to change the data. Connect the daily programmer through a radio channel or cable.

Week programmer. With this device, you can write the work of the gas boiler for a week ahead. You can use any mode or create your own.

For example, the AURATON-2025 programmer is equipped with 3 factory and 7 user modes that help customize a comfortable room temperature. The display is turned off at night using the light sensor. The display displays all operation data. The radius of the programmer is 30 meters, so it can be placed in any room.

Work non-volatile automation

Some elements of the boilers that are needed to control do not need to use electricity. You need to regulate these devices manually and under the influence of geometrical changes that occur under the influence of heating in the mechanisms.

To turn on the boiler, you must press the walker to the valve. Forcibly will be opened last, inlet fuel, which goes to the stall. The market presents many models with electronic control, but mechanical is popular. There are several reasons for this:

Low cost.
Easy use.
Reliability. Such devices do not depend on voltage jumps or turning off electricity, so they can work without a stabilizer, which is needed when working with volatile equipment.

Disadvantages of this type:

Low adjustment accuracy.
You need to track the work of the boiler.
Manual setting.

The device has a scale of temperatures where the numbers indicate the minimum and maximum values. In order to set the operating temperature, you must set the mark on the gradation line.

After the boiler began working for its operation responds to the thermostat. When cooled, the terminal of the device opens the gas supply faucet and thus due to the increase in temperature increases in size and then overlaps the gas supply. Such a process helps to increase or decrease the heating temperature.

Safety system

The gas boiler security system includes many elements that can be divided into 2 groups:

Devices that contribute to the comfort of the boiler;
Instruments that are responsible for the safety of the equipment.

The second can be attributed to the thermostat, safety valve, as well as a flame control sensor and traction.

The flame control sensor consists of elements: an electromagnetic valve that includes and turns off the supply of gas and thermocouples. The thermostat maintains the desired temperature of the heat carrier and protects against overheating. When the critical marker coolant is reached, the module includes or turns off the boiler.

With increasing temperature, the location of the bimatallic plate is changing, it is strifted and overlaps the pipe through which gas is flowing. Thus, the traction control device turns off the fuel supply to the burner.

The safety valve adjusts, distributes and overlaps the gas flow. In the heating system, such a device is an inseparable element of pipe fittings, which is of great importance in controlling the volume of heat carrier.

Fuel movement is carried out through a hole in the valve, which is called the saddle. In order to turn off the equipment, it needs to be covered with a piston.

Gas valves are one-step, two-stage, three-stage and simulating.

The first view has 2 operating positions: switching on and off.

Two-step has 1 input and 2 outputs. The valve opens after turning into the intermediate position, so the switching is seamlessly.

Three-stage is used for gas boilers with two power levels.

The latter are used to smoothly change the value of the boiler power.

Automation is used for safety and convenience. The user does not need to independently perform many tasks. This includes the selection of a comfortable mode of operation, diagnostics, autourtygig burner, etc.

How helklock is arranged

Manufacturers make control units that include all the above devices. Even if they look externally, their principle of work still remains the same.

The automation from the Italian manufacturer EUROSIT is very popular. It can be noted a brand 630, which has many features, reliability and long service life. Consider the device of the automatic block of such a model.

The EUROSIT 630 automatic block consists of the following items:

Casing, which consists of a pressure regulator module, spring valve and a cut-on. Thanks to this, its device is facilitated.
The gas supply is made through a pipe connected to the housing.
Cables from sensors and other elements are connected to the case.

Adjusting the heating boiler automation

Regulation provides for the adjustment of the automation that supports the desired temperature mode, located in the fluid circuit, and during an emergency location blocks the supply of gas.

Before moving to the configuration of the automation, it is necessary to install the equipment according to the drawing. And it is also necessary to check the configuration of the elements of the devices, which must match the claimed in the instruction. You can adjust automation using a handle. It helps to translate the boiler in 3 positions: inclusion, ignition and temperature setting (1-7). In order to turn on the stall, you must translate the handle to the second position by setting it against the spark icon. The pilot burner lights up with the help of piezoroz. The lever should be held in the same position for 30 seconds. After you have let go of the button, the repayment must stop its work. The thermocouple begins to heat up when the flame is ignited, so EMF 25 mV begins to be produced in it. Therefore, a chain is formed, the links in which are the electromagnetic valve and the sensor.

To open the solenoid valve, you need to click on the lever, the gas will be fed to the stall. The thermocouple provides protection against the opposite penetration of fire. Sensors in operating positions that relate to the elements of the chain are closed. After receipt of the signal, they will open, and the equipment is turned off.

Problems when you turn on the incendiary element

If you have problems when you turn on the device, you should use the instruction. First of all, you need to purchase a screwdriver and horn key, pliers, multimeter and alcohol for cleaning spare parts.

It is necessary to remove the terminals of the device. They closes between themselves, and then prescript with pliers.
In order to find out the cause of the breakage should be turned on the stall. If the ignition is performed normally, the fault is probably in the thrust sensor. You need to unscrew this item.
You should inspect the contacts that must be fixed on the housing and have no oxidation traces.
In an open condition, the temperature must be 75 degrees.
Resistance must be 1-2 ohms. You can measure it with a tester. If a malfunction was found, then this item must be replaced.
During normal operation, it is necessary to wipe it with alcohol and retail the device.
In order to check the thermocouple on the thermocouple, it is necessary to remove the terminals and check the resistance that should have an indicator 3. If the value does not match the desired, then you need to unscrew the nut key number 9, which fixes the thermocouple to the hardening device, then the latter to unscrew the key number 12. Next, you should get a plastic insert with contacts and unscrew the item completely.
To check the thermocouple, the electromagnetic valve is connected and is fixed with the key number 9. If, after checking the span does not occur, this part is faulty. The nut, which fixes the thermocouple to the stobble, must be unscrewed with the key number 10, then the part is set to the desired position.
In order to estimate the result, the EMF is measured (the optimal value of 18 mV), after that the thermocouple contacts and elements of the alcohol are cleared. The last step is the assembly of the device.

Elimination of problems when working automatics

Most often, the ignition does not occur due to the contamination of the insulator, along which the wire is arranged to the combustion chamber. It is possible to eliminate such a problem, rubbed the element of soft rag. If the item is polluted strongly, then it can be wiped with a solvent and wipe dry.

Another reason can be a spout of soot, which is formed in the combustion chamber. Handling on the handset, which leads gas to the burner, you can solve this problem. If the device has not been used for a long time, then it is necessary to check the condition of the pipes.

In modern fault boilers, are indicated on the displays in the form of codes. If water is badly heated, then the reason for this can be deposited on the walls of the heat exchanger. To eliminate the malfunction, you can rinse the contour with hot water with the addition of mineral substances. If this method does not help, it is better to contact the specialists. The cause of poor heating can be a malfunction of electronics or a duct sensor.

Gas boilers of high power can happen the effect of "tact", which appears due to frequent inclusions. Equipment is often included due to severe gas heating. To solve the problem, it is necessary to reduce the fuel consumption that goes on the burners. In the electronic model, you can configure the required mode on the display, and in the mechanical, rotating the adjusting lever on the gas valve. To increase the service life of the gas boiler, a preventive inspection should be carried out on time.

With the beginning of the heating season, the owner of a private house must translate the heating boiler to the working mode. The operation is not the most difficult, since all instructions for setting up the unit are mandatory in the technical documents. In our article, we will tell you what to pay attention to when setting up the equipment and how to make the boiler work with maximum efficiency.

Selection of gas equipment - Main criteria

With the settings of the gas boiler you need to decide even before purchasing it. Start advising with the power of the equipment. Of great importance are the features of your home. The main condition for the normal and uninterrupted functioning of such an aggregate is the presence of a centralized gas supply. Naturally, you can try to take advantage of the imported gas cylinders, but this will significantly increase costs. In some cases, it is cheaper even to purchase electrical equipment for the heating of a building than to buy gas with gas with cylinders.

Heating boilers are single-circuit and dual circuit. In the first case, we recommend purchasing an additional boiler for indirect heating. Only then an aggregate can be used to heat the sanitary water. The optimal option is the purchase of a two-circuit boiler, which has all the necessary functions for heating the building and water. Its key peculiarity is to transfer the priority of managing the operation of the work of hot water supply. In other words, after the opening of the hot water system, the heat supply in the main circuit, which also includes the heating system, stops.

There are some features of the choice of the outdoor and wall boiler. Wall-mounted equipment is less powerful, so it is not enough for heating rooms with a total area of \u200b\u200bover 300 square meters. In this case, it will be necessary either to purchase another boiler, or mount the gas boiler of the floor type. In stores you can purchase outdoor aggregates of any power.

Safe boiler work - calculation of its power

The power of the heating boiler is a key factor that affects the level of heating of the premises, as well as the durability of the equipment and the safety of its work. First of all, it is necessary to determine the loss of heat through the ceiling, walls and windows. Part of the thermal energy goes through the ventilation system, which should also be remembered. To fulfill such calculations with maximum accuracy is very difficult, without the help of specialists can not do.

However, there is a technique that allows you to approximately calculate the necessary power indicators. If the construction of the building was conducted in accordance with all safety and energy saving requirements, then for heating one square meter, about 100 W power of heating equipment is required. Accordingly, buying a new gas boiler is necessary, based on this ratio.

To pick up the boiler, consider the features of your building. After all, the power will depend on many factors, whether it is the thickness of the walls and ceilings, the presence of plastic or wooden windows, as well as their insulation. The difference between the outer temperature and the room temperature is of great importance. So, if the temperature changes insignificantly, then the amplitude is at the outside reaches huge values. Even in winter, sharp transitions are possible from plus 10 to minus 20 degrees.

Prefer modern aggregates. And the reason is not only as such equipment, but also in the presence of additional functions, for example, LCD displays. To customize the heating boiler in this case will not be difficult, since the monitor shows the basic parameters of the device - the fan turnover, the actual and tuned water temperature and much more.

One of the most frequent problems associated with the capacity of the equipment is tact. This phenomenon occurs in cases where the assembled unit you have has too high power. In this case, the exit is only two - or acquire a new gas boiler, or try to make configuration with your own hands. Preferably the first option, however, the second is also used very often.

The boiler's tact is a situation where the boiler turns on independently too often. This is due to the too strong increase in the temperature of the coolant.

Tact is fraught with serious consequences. The involuntary inclusion equipment causes gas overfers, besides, excessive equipment wear is observed. However, solve the problem is very simple - adjust the gas supply level to the burner to the minimum level. Check the gas supply level regularly and, if necessary, adjust the gas boiler again.

For each boiler, its own instruction is attached, in which it is described in detail how to perform it. Usually on the gas valve there are special screws responsible for the intensity of fuel supply. On modern models, all settings can be made directly from the LCD display, which is even easier and faster.

Temperature control in the rooms - Setup Guide

Setting the gas boiler allows you to set the optimal temperature regime in the rooms. The only condition is the presence of a thermostat, the task of which is to adjust the power of the burner. The thermostat is connected to the temperature sensor located in the room. Previously need to set the desired temperature value, comfortable for you. After that, you can enjoy warmth, reading books or watching your favorite films.

There are some restrictions when using thermostats. For example, this instrument allows you to set the temperature regime only in one room. To eliminate this disadvantage, it is necessary to install the thermostatic valve in the feed pipe before each heating radiator. Due to the narrowing or expansion of the working substance located inside the valve, the cross-sectional area of \u200b\u200bthe pipe occurs. Such valves react to the slightest temperature measurement, even an increase in the number of people in the room can lead to a narrowing of the working substance.

The failure of thermostats may cause the simultaneous overlap of all heating radiators. This will lead to the cessation of coolant circulation in the heating equipment circuit. You must first install a jumper or bypass tube to avoid such problems.

The automatic system of heating of premises - trust, but check

Modern gas boilers are equipped with the function of automatic choice of operation mode depending on the availability of people in the rooms. This allows you to maintain temperature at a certain level even during a long lack of owners. This setting can be used only under the condition of periodic control of the system from neighbors or relatives. This is due to the fact that in the case of unforeseen problems, for example, emergency shutdown, the entire system of heating the building will fail.

As practice shows, there can be quite a lot of reasons for turning off the boiler:

reduction of voltage in the network;
disconnection of electricity;
reducing the cross section of the chimney due to the ice formed there;
reduction gas pressure;
furore burner as a result of a strong wind in the combustion chamber.

Therefore, regular control is necessary. Otherwise, a system failure is possible, which will lead to a huge financial spending. Naturally, the neighbors will need to be explained how to properly adjust or adjust the gas boiler in one situation or another. Then you can count that during your absence, nothing happens in the house.