Conord home gas boiler: device, technical characteristics, model range, owner reviews and operating instructions

The quality of heating of the entire house depends on the serviceability of the gas boiler, which is especially important in the cold season. Even the slightest breakdown can cause the equipment owner to have a panic attack, since repairing it can be too expensive. Agree, it is not always necessary to call a specialist, because you can independently figure out the reasons for the malfunction of the Conord gas boiler and repair the equipment yourself.

Despite the already established tendency to always blame the manufacturer, often gas boiler breakdowns have absolutely nothing to do with production features. They often arise due to a malfunction in the equipment settings, unstable pressure or voltage in the network.

Further in the article we will tell you what breakdowns of the Conord boiler occur most often, and how to independently restore its operation after another failure. In some cases, repairs may not be necessary because all you need to do to fix the problem is simply set the correct settings.

Installation features

We have already said that boilers are highly efficient and can last quite a long time.
However, in order for all these key points to be effective, it is necessary to carry out the correct installation of the equipment, which should be entrusted to specialists. Service center employees are required to make notes about the operations performed in the technical passport of the heating unit. In addition, specialists must annually inspect the boiler and all its components; this must also be indicated in the technical passport. When installing equipment, it is necessary to take into account a number of requirements that apply to the Conord heating boiler:

If the unit is placed on a combustible floor, then it is necessary to take care of a fireproof substrate, which should be larger in size than the device itself by 50 cm on both sides. To ensure normal water circulation in the system, the lower pipe must be located lower than the heating radiators. The pipes in the system may be different. If they are connected by welding, it is recommended to leave a pair of threaded connections for future repairs. Laying of horizontal sections should be carried out with a slope for air removal of at least 10 mm per 1 meter from the structure itself. A prerequisite is vertical risers; a deviation of three millimeters per three meters of the structure is allowed; the angle of inclination of the outlet to the heating devices should be 10 mm per 1 m of pipe. At the outlet of the coil, you should install shut-off valves. The finished chimney to which the equipment will be connected must be located in the load-bearing wall of the building. It is advisable to cover the chimney with thermal insulation, especially if it passes through an area that is not heated. The diameter of the chimney should in no case be greater than the diameter of the outlet pipe. This is a prerequisite for stable operation of the equipment and sufficient traction. Make sure there are no ledges at the chimney

It is also important that it is positioned strictly vertically. All indicators must be strictly observed, in accordance with regulatory documents and fire safety rules. If you are going to install a Conord gas boiler, be sure to coordinate your actions with specialized authorities

If you are going to install a Conord gas boiler, be sure to coordinate your actions with specialized authorities.

How to maintain your warranty

In order not to be denied warranty obligations, you should not undertake installation and adjustment work. Connection, configuration, and first start-up are carried out by service center specialists. They also make a record of the work done in the device passport. Preventative maintenance should be carried out annually - this is also noted in the technical passport. Failure to maintain such records will void the warranty.

The instructions and connection diagram are provided for reference. Their presence in the package does not mean that the owner of the equipment can connect it himself.

Gas boilers Conord and their description

As already mentioned, all boilers under the Conord brand are floor-standing, and they are quite large; their outer casing is equipped with a special protective enamel. They also have the following descriptive characteristics:

• the boiler is made of steel 3 mm thick;
• The efficiency of the unit is 90 percent;
• energy independence;
• affordable price;
• good customer reviews.

Gas units of the Conord brand include several modifications, in particular, with and without hot water preparation. In addition, the unit can be equipped with thermo-hydraulic type automatics or SIT automatics. In the first case, the boiler is classified as non-volatile. The supply and shutdown of fuel in this design is controlled by a thermostat. Then, when the temperature next to it reaches the set parameter, gas stops flowing to the main burner and this way the desired temperature regime can be maintained.

These devices are well adapted to the conditions of both cold and moderate winters; they are able to maintain any given temperature, provided the power is correctly calculated. Thanks to the high-quality installation of the burner, excellent boiler productivity is achieved, an optimal gas-air mixture and thermal insulation are created, thanks to which a huge amount of heat is spent on heating the coolant.

Of course, boilers of this brand are safe and have several levels of protection:

• a smoke exhaust sensor that is triggered in the absence of draft and turns off the gas supply to the burner. It also does not allow you to turn it off when short-term reverse draft occurs during intense gusts of wind;
• the presence of a flame on the main burner is monitored. If it is not there, then there is no gas supply;
• possibility of temperature control in the heating circuit. Heating of the coolant stops when the maximum temperature value is reached.

Conord boilers are adapted to operate in conditions of low fuel pressure. Different models may be marked KSts-G-10S or KSts-GV-12. It has this meaning:

• K-boiler;
• C - made of steel;
• C – the firebox has a cylindrical shape;
• G - gas;
• GW – gas with hot water supply function.

Subsequent numbers in the marking indicate its maximum power level. To calculate the required power when purchasing a boiler depending on the room, take 1 kW per 10 square meters, provided the ceiling height is within 2.5 meters and the average level of heat loss.

Recommendations for the use of equipment

Reviews of Conord boilers indicate that they are chosen mainly due to their reliability and affordable price. However, many consumers complain about one drawback: boilers often go out for no reason . This may be due to the following factors:

• the burner is dirty and you need to clean the gas and air supply nozzles with a vacuum cleaner and brush;
• there is not enough air for the pilot burner to operate fully. To fix this, you need to clean the air supply nozzles and improve the ventilation of the room;
• Thermostat contacts have oxidized. They need to be cleaned or “stirred up”;
• The draft sensor or flame sensor is broken.
• Some reasons, as you have seen, can be eliminated yourself, but to eliminate others it is better to call the service department.

Also, the temperature of the coolant in the system can drop significantly. To eliminate this, move the thermostat switch to the maximum position or increase the gas supply to the burner, if such a recommendation is included in the instructions for the boiler.

Also, Conord boilers have their own operating characteristics in summer .
So, to turn off the heating circuit, you need to turn off the water supply tap. If only the pilot burner is working, the water heats up to 60 degrees in an hour. If there is no further water consumption, then it will be enough for a couple of hours for small household needs. After heating the boiler, if active consumption of hot water is not planned, it should be turned off, otherwise the water will boil and the boiler may break.

Model range of Conord boilers

Gas boilers of the Conord brand are produced in four series, each of which has its own characteristics:

• KSts-G-S is a single-circuit unit with SIT automation, power ranges from 8 to 30 kW. The temperature adjustment range is from 60 to 90 degrees, and the pressure is from 0.2 to 1.9 bar. The average cost of a structure is about 10.5 thousand rubles;
• KSts-G-N is also a single-circuit model, equipped with thermo-hydraulic automation, unit power from 10 to 30 kW, the heat exchanger is made of cold-rolled steel and has a cylindrical shape. Pressure up to 5 bar, and average cost about 11.5 thousand rubles;
• KSts-GV-S is a two-circuit unit, equipped with SIT automation, design power from 12 to 30 kW. Can be connected to a system with natural or forced circulation. Cost from 15 thousand rubles;
• KSts-GV-N is a two-circuit device with thermo-hydraulic automation with a power of 12 to 30 kW. The design is capable of turning off the gas in the absence of thrust and stabilizing operation during short-term reverse thrust. The cost is from 15 thousand rubles.

Circulation pump

Air often accumulates in it, and its blades sometimes seem to get stuck (the boiler will display a corresponding error).

It is recommended to rotate the shaft manually before starting.

To do this, you need to remove the front panel of the housing, unscrew the central bolt on the pump and use a straight-bladed screwdriver to turn the shaft in the direction indicated by the arrow.

An air vent is installed above the pump. You need to pull the bright lid up and let the air escape.

Floor-standing boilers are usually more powerful than wall-mounted ones. If you need to heat a large room, it is better to choose this option. Floor-mounted gas boilers for home heating – overview of design options and models.

Read about the installation features of combined heating boilers in the following material.

Conclusion

At first, the system may make gurgling sounds, all because during startup it is impossible to bleed air down to the last atom. It will gradually be removed through the expansion tank valve. Periodically check the pressure on the pressure gauge - it should be within the operating range. Temperature adjustment and other boiler settings are described in the instructions for each model.

Boiler overview

If you decide to purchase gas boiler equipment from, you should be prepared for the fact that all models from this supplier are floor-standing. Their dimensions are quite large, and the outer casing has protective enamel. Additional characteristics include 3-mm steel at the base of the case, as well as the ability of the equipment to maintain the required temperature conditions.

The efficiency of the units reaches 90%. They are non-volatile and are available for sale in several modifications. Some models have the ability to prepare hot water for consumption. The units may have thermo-hydraulic type automation or a SIT system. The first option deals with non-volatile devices. The thermostat controls the shutdown and fuel supply. When the temperature near the device reaches a certain parameter, the gas stops flowing to the main burner, this allows the required temperature to be maintained.

Conord gas boilers, reviews of which you can read in the article, are well adapted for operation in conditions of not only harsh, but also warm winters. They maintain the set temperature with the correct power calculation. The burner is installed with high quality, thanks to this, good productivity is achieved, an optimal gas-air mixture is created and thermal insulation is ensured. Thanks to these features, the gross volume of heat is spent on heating water.

Advantages

Conord gas heating appliances have the following advantages:

• boilers are very reliable and durable. They are absolutely independent of electricity, so their operation proceeds without failures or malfunctions;
• manufactured units are safe. The package includes modern automation, which is responsible for stopping the operation of the boiler in the absence of draft and other negative aspects. In addition, automatic regulation of the set temperature level is carried out and the boiler’s operability is ensured at low gas pressure;
• The performance is very high, the efficiency reaches 90%, the unit is economical. And due to the use of heat-insulating materials in the device body, heat loss is reduced;
• during operation, the unit makes virtually no noise, it is small in size and has an attractive design;
• If we compare Conord equipment with devices of other brands, we can say that the price of the equipment is quite reasonable;
• gas consumption is much less. This is due to the fact that innovative technologies were used in the process of creating burners;
• Double-circuit boilers are used not only for heating, but also to provide the premises with hot water.

Of course, Conord heating boilers have many advantages. The key ones are low price and independence from electrical energy. That is why such heating boilers can be called economy-class products. At the same time, their quality is at a high level.

Gas boiler "Ochag" - popular, Russian, reliable

Russian gas boilers “Ochag” are quite popular equipment in the CIS. The increased demand for it is primarily due to the manufacturer’s loyal pricing policy and outstanding performance characteristics. But first things first.

The “Ochag” unit is a floor-standing boiler that is ideal for supplying heat to residential apartments and houses. The equipment is able to cope with the heating of rooms whose area reaches 250 square meters. The “Ochag” device can be aggregated with water heaters, which makes this equipment a universal solution to basic household issues of hot water supply.

Russian-made structures operate on natural gas. Domestic engineers, well familiar with the problems that arise from time to time on our gas mains, have provided for the possibility of operating the boiler at low fuel pressure in the system. Naturally, rational buyers who are faced with similar difficulties will appreciate this positive feature of Ochag gas boilers.

Built-in automation makes the operation of the equipment as comfortable as possible for the heat consumer. The system is capable of functioning in a given mode without additional outside intervention. It is worth noting a number of advantages that are characteristic of the “Ochag” model. Among them:

• Moderate gas consumption. The design provides a built-in fuel pressure stabilizer, which reduces gas consumption by a third.
• High environmental loyalty. The amount of harmful emissions into the atmosphere during operation of the unit is minimal, which is especially surprising for domestic equipment, which is not environmentally friendly.
• Maximum precision control of the temperature regime of the unit.

The Ochag gas boiler can rightfully be considered quite safe by Russian standards. Naturally, our technology is far from advanced Swedish and German boilers, but still, the presence of a three-stage safety system already speaks volumes. In particular, the “Hearth” is protected from unexpected extinguishing of the flame on the burner, from lack of draft and from stopping the fuel supply to the system. This is more than enough to avoid typical breakdowns and other problems.

“Ochag” boilers are equipped with a first-class heat exchanger made of steel. High efficiency of the system is achieved thanks to the method of extensive heat removal with a minimum amount of coolant, which is very harmoniously implemented in this design.

The optimal combustion process of the gas-air mixture is ensured by the fuel pressure stabilizer, which is provided in the gas block. At the same time, the gas boiler of the Ochag brand, regardless of the gas pressure in the system, maintains constant thermal performance.

Powerful gas burners made of heat-resistant steel with high anti-corrosion properties are evenly located under the built-in heat exchanger. As a result, an even thermal field in the firebox is ensured, which prevents unwanted overheating in individual areas of the heat exchanger. Of course, this extends the life of the unit and its components.

A little about the advantages of the design

If you doubt that you will be satisfied with the purchase of the Ochag gas boiler, then pay attention to its undoubted advantages:

• High efficiency achieved by the special design of the steel heat exchanger.
• Unobtrusive appearance of the structure, which does not disfigure the interior, as happens when installing domestically produced units.
• High level of technical equipment.
• Simplicity and low cost of equipment maintenance.
• Independence of the unit from external energy sources.
• High build quality, which is guaranteed by multi-level testing in the factory.
• Adaptability of equipment to specific operating conditions in Russia and the CIS countries.
• Availability of reliable high-quality Italian automation EUROSIT.

Results

Since buying a boiler is a responsible matter, you should not rush into choosing a unit. Most buyers would be completely satisfied with the technical capabilities of the Ochag gas boiler, however, if you expect absolutely automated operation and strict safety from water heating equipment, then you have “come to the wrong address.”

Naturally, the price of the “Ochag” equipment attracts a potential client, but it is worth remembering that there are units on the market that are slightly more expensive, but with richer equipment. Therefore, when purchasing a boiler from a domestic brand, you should be clearly aware that all the built-in functions will definitely be enough for you for the next 10-15 years.

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What is a bimetallic plate

An element that has the property of deforming (bending) in one direction under the influence of elevated temperature is called a bimetallic plate. From the name you can guess that the plate contains two metals. Each of them has its own coefficient of thermal expansion. As a result, when such a plate is heated, one component expands by a certain amount, and the second by another.

This leads to a bend, the shape of which depends on the difference in temperature coefficients. The rate of deformation is directly proportional to the change in temperature. When the plate cools, it returns to its original position. The plate is a monolithic compound and can work indefinitely.

Advantages and disadvantages

The positive features of gas appliances from Conord can be determined according to the reviews of those owners who actively use them:

• large model range;
• models have 3 types of automation;
• efficiency;
• high efficiency;
• in the event of a boiler breakdown, you can find spare parts quite quickly;
• good thermal insulation;
• guarantee of flawless operation for 3 years;

• uninterrupted operation for almost 15 years;
• steel heat exchangers help withstand thermal deformations;
• the use of water from the water supply system as a coolant;
• the ability to connect to a system with various types of circulation of the working environment;
• almost complete absence of wall-mounted appliances;
• energy independence of devices;
• use in certain series of automation parts made in Italy and Poland;
• simplified process of using the device.

Boilers from this manufacturer are created in accordance with the characteristics of the domestic climate and are designed to generate the required amount of heat to warm the home even in the most severe frosts.

The reliability of these popular devices is guaranteed by the increased level of durability of heating devices, and their independence from electricity will allow them to function without any failures or delays, especially in conditions where there is no electricity.

The low level of noise impact during operation, compact size and stylish design will allow you to place the device in the kitchen or any other room without harming the design of this room.

A gas unit with 2 circuits from Conord can heat the room as quickly as possible, and also provide home owners with heated water for personal needs.

The safe operation of the products is guaranteed by the arrangement of various protection components of the automation box, which will help turn off the product when the traction is lost. In addition, the boiler will be turned off in the event of any breakdown or any other type of failure. You will be able to automatically adjust the heating temperature of the device, and if the fuel pressure level is too low, the device will provide rapid forced air injection to maintain the functionality of the device.

Disadvantages of Conord products:

• not the highest build quality of some models;
• the steel thickness will be no more than 3 mm;
• ban on the use of antifreeze.

Advantages

After reading reviews about the products of the Rostov enterprise, it is easy to understand that they are in high demand. The Russian consumer is attracted to Conrod products by:

• Cost - prices for Russian products are much lower than for European ones. Sometimes the difference is 50%. The cheapest 8 kW models, used for heating a private home, cost only 15,000 rubles.
• Long warranty. The manufacturer guarantees uninterrupted operation for fifteen years.
• Does not depend on electricity. A blackout, especially in winter, due to lack of electricity, is almost a disaster. Therefore, for volatile equipment it is necessary to install backup power - a generator or battery. There are no such problems with Conord.
• Easy to use. The abundance of functions, electronics and automation from other brands often causes unnecessary trouble.
• Quiet operation.
• High quality build.
• Good technical characteristics: Rostov boilers are practically not inferior to foreign analogues in productivity, efficiency, and heating speed.
• High efficiency - about 90%.

Gas boilers

Conord gas boilers are produced in a wide range. In this case, all equipment can be divided into four main categories.

• Single-circuit heating boilers equipped with Italian SIT automatic equipment.
• Single-circuit gas boilers with thermo-hydraulic automation.
• Double-circuit boilers, supplemented with Italian automation elements.
• Double-circuit gas units with thermo-hydraulic automation.

Some gas boilers can switch to alternative fuels. To do this, it is enough to make some changes to the gas boiler. It is quite possible to re-equip the boilers yourself, relying on the operating manual from Conord.

Main advantages

Schematic structure of the Conord gas boiler

What are the strengths of a domestically produced gas heating unit?

1. Long warranty period of 15 years.
2. High-quality cladding of heating units with steel sheets and powder enamel. This makes the boiler more heat-resistant.
3. Automatic modulation of the flame of the burner used. This makes the equipment operate more efficiently and economically.
4. Possibility of switching to alternative fuels.
5. High reliability indicators.
6. Independence from electricity. So the boiler is able to operate autonomously, without interruptions typical for energy-dependent models.
7. Well-thought-out security and automation group. They allow you to protect the boiler from emergency situations and automatically regulate the operation of equipment when gas or water pressure decreases.
8. High efficiency. The Conord boiler boasts an efficiency of 90 percent.
9. Protection against thermal loss. This was achieved through the use of highly effective thermal insulation in the production of the housing.
10. Low noise level. The operation of the equipment will not interfere with your rest.
11. Small size and attractive design. This allows you to fit the boiler into the interior and make it, to a certain extent, a decoration of the house.
12. Modulating burners reduce gas consumption. The Conord boiler can be classified as economical.
13. Attractive price compared to competitors with similar technical characteristics. Customer reviews show that Conord is not inferior to famous foreign competitors.
14. Possibility of connecting a dual-circuit Conord model.

It is also important to note that gas boilers produced by Conord differ from each other in the type of heat exchangers used. Although consumers divide them as follows:

• Steel;
• Cast iron.

Do not think that we are talking about the materials used to make the device itself. The equipment has approximately the same design. But the heat exchanger can be steel or cast iron. Hence there is a certain confusion in the names.

Steel

A steel boiler indicates that the design is based on the use of a steel heat exchanger. It has several features:

• Steel is characterized by increased flexibility and ductility when compared with cast iron counterparts;
• The specific gravity of the heat exchanger is small, which also sets it apart from the cast iron element;
• High heat transfer rate. For this, many value steel as a material for the manufacture of heating boilers.

At the same time, a steel heat exchanger has a serious drawback, due to which, despite all the advantages, manufacturers often prefer cast iron. We are talking about poor corrosion resistance. Companies are trying in every possible way to get rid of this defect and use special coatings. But they are not fully capable of protecting the element from corrosion.

Cast iron models

A boiler with heat exchangers made of cast iron is characterized by increased thermal conductivity and resistance to corrosion. Therefore, cast iron is more popular compared to steel among manufacturers of gas boiler equipment.

While covering the shortcomings of steel with its advantages, cast iron has its negative sides.

1. The indicators of flexibility and ductility are noticeably lower. This makes the material less resistant to deformation.
2. Less strength. Cast iron is not as strong as steel.
3. Fragility. But the main disadvantage of cast iron is considered to be fragility. Because of this, problems may arise during the transportation of the boiler or its installation. Therefore, it is better to trust the installation to specialists, carefully checking its integrity after delivering the boiler to your home.

Watch closely for the appearance of microcracks. If they form on a cast iron heat exchanger, the boiler will not be able to operate for a long time after this. You will have to change the heat exchanger.

Second group with a steel heat exchanger:

The Conord boiler with the design of a steel cylindrical heat exchanger made of cold-rolled metal is offered by the plant in single- and double-circuit versions. The service life is reduced compared to cast iron to 15 years. The designs use two automation options.

The first option: SIT automation from an Italian company known for its quality throughout the world. It is installed in the vast majority of all manufactured boilers in the European Union, such famous devices as: IMMERGAS, Fondital, Vaillant, Bosch and many others. The SIT valve allows you to guarantee a stable set temperature.

In addition, automation controls stable operation with a reduced gas pressure in the city pipeline. So the nominal value provides for operation with a pressure of 1.3 kPa, but a drop to 0.6 kPa is not a big problem and the Conord gas boiler continues to operate steadily, despite the fact that this is 46% less than required.

Single-circuit, with automatic SIT – heating only:

KSts-G-8S Heating capacity =8 kW KSts-G-10S Heating capacity =10 kW KSts-G-12S Heating capacity =12 kW KSts-G-16S Heating capacity =16 kW KSts-G-20S Heating capacity =20 kW KSts-G-25S Heating capacity =26 kW KSts-G-30S Heating capacity =30 kW KSts-G-40S Heating capacity =40 kW KSts-G-50S Heating capacity =50 kW

Single-circuit, with thermohydraulic automation

The second option is more budget-friendly, equipped with domestically developed AGU-T-M automatic equipment. AGU is an automatic gas burner device, consisting of nozzles and safety automation. The main manufacturers are Mimax and Tagonrog. ASU automation consists of:

1. temperature sensor;
2. igniter with thermo-bimetallic plate;
3. adjusting screw with lever;
4. gas valve;
5. block crane;
6. connecting parts.

Ignition order:

1. We check the draft, move the damper, light the igniter.
2. Press the gas valve and light the wick. We fix and do not release the button until the bimetallic plate heats up.
3. While continuing to hold the button, follow the lever. It will creep onto the inscription “on the button”, we need to wait for the moment when it is fixed.
4. Release the gas valve and set the required temperature using the control knob.

Domestic automation makes it possible to buy a Conord boiler a little cheaper. In contrast to European analogues, it has the simplest design. It is non-volatile - no power supply is required. The starting process is carried out manually by igniting with matches or a lighter. By the way, thermo-hydraulic automation type AGU-T-M is widely used in Russian gas boilers

According to customer reviews, such automation is completely unpretentious, and the Conord floor-standing boiler equipped with it is not “capricious.” In addition, it is not difficult to find spare parts on the market even far from city centers. The prices are also not satisfactory, for example, one of the frequently requested parts - a bimetallic plate - is found everywhere for no more than 100 rubles.

KSts-G-10N Heating capacity =10 kW KSts-G-12N Heating capacity =12 kW KSts-G-20N Heating capacity =20 kW KSts-G-25N Heating capacity =25 kW KSts-G-30N Heating capacity =30 kW

Double-circuit with DHW and SIT automatic control system

The Conord floor-standing gas boiler, when equipped with two circuits, copes with the task of heating buildings and at the same time is capable of preparing hot water used for household needs. The design uses the proven modulation function. Burner operation using modulation significantly increases the efficiency of hot water supply.

KSts-GV-8S Heating capacity =8 kW KSts-GV-10S Heating capacity =10 kW KSts-GV-12S Heating capacity =12 kW KSts-GV-16S Heating capacity =16 kW KSts-GV-20S Heating capacity =20 kW KSts-GV-25S Heating capacity =25 kW KSts-GV-30S Heating capacity =30 kW

Double-circuit with DHW, with thermo-hydraulic automation

KSts-GV-12N Heating capacity =12 kW KSts-GV-20N Heating capacity =20 kW KSts-GV-25N Heating capacity =25 kW KSts-GV-30N Heating capacity =30 kW

Boiler Conord decoding

• K – boiler
• C – steel material for the heat exchanger
• C – cast iron, heat exchanger material
• G – gas
• B – DHW circuit
• C – cylindrical.

Installation and connection to heat supply and hot water systems

There are practically no special features during installation. The boiler must only be installed on the floor. The base must be durable and non-flammable. This is especially true in cases where the boilers will operate on solid fuel. The size of the pre-furnace non-combustible sheet must be at least 0.5 m². It can be made of steel or simply have a concrete base over a larger area than the boiler itself.

The heating system is connected using threaded connections. For more efficient use of the boiler, you can install a circulation pump on the return pipeline through a bypass. With a closed heating system, to ensure safe and trouble-free operation, install a safety group on the supply pipeline.

The hot water supply circuit is connected as follows. The water supply is also connected from the water supply to the coil at the inlet via a threaded connection, and a pipe is connected from the inlet to the mixer. This hot water supply system has one big disadvantage: it only works when the heating equipment is running. In the warm and summer months, the issue of hot water supply must be resolved in a different way.

How they work

The firebox is made of 3 mm steel sheets. There is a water jacket, a gas burner unit and smoke pipes with turbulators, which increase the efficiency of the device. The gas burner unit operates automatically - the power is modulated. Basalt cardboard is used for thermal insulation. There is a thermometer to visually monitor the water temperature.

If the model is 2-circuit, then the chimneys are equipped with a coil for hot water supply. The input-output of the latter is located on the rear panel of the case. The diameter of the pipes is 2 inches / 5 cm. For hot water supply - 0.5 inches or 1.5 cm. Devices with a power of 8-12 kW have a chimney with a diameter of 11.5 cm. 16 kW - 15 cm. There are modifications with and without circulation pumps .

Important! The coolant of the system is plain water; the use of antifreeze is prohibited.

Single-circuit gas boiler ServiceGas Ochag Premium AOGV-11.6-E​​​​​​with SIT automatics

Gas boiler Ochag AOGV-11.6 Premium EuroSit ServiceGas is a single-circuit device, the main purpose of which is to heat private households, apartments in houses, as well as various types of buildings

When developing the Ochag AOGV device, the specifics of Russian gas pipelines were taken into account, namely the low pressure of the incoming gas. The Hearth boiler is completely energy-independent and operational in heating systems with normal (working) pressure up to 3 atm, both closed - forced type with a pump, and open type with natural coolant circulation

The marking of the “Ochag” units is quite simple; next to the abbreviation A-O-G-V (gas hot water heating unit) there is a number indicating the boiler power in kW, after which the letter indicates the boiler’s automation:

C – SABC (T or AT)

E or EM (EN) – Eurosit

Advantages of the heating device "Ochag" Premium with a power of 11.6 kW

• Moderate gas consumption. The manufacturer has included a stabilization device in the boiler design to equalize the fuel pressure. With the help of a stabilizer, gas consumption is reduced by 30%.
• Protection during operation of the device is provided by a safety system that will automatically turn off the boiler in the event of: insufficient or complete absence of draft in the chimney, the burner flame goes out, the gas line is cut off, and a coolant overheating control device will protect against premature wear of the heat exchanger.
• Non-volatile. The fireplace is an autonomous boiler and does not require any external sources of electricity to operate.
• A strict, but at the same time modern appearance that fits perfectly into the modern interiors of apartments and houses without standing out compared to other equipment in the house.
• Accurate temperature setting.
• The highest efficiency of 92% in its class by means of modernizing the fire-tube heat exchanger device, which is made of high-quality steel up to 3 mm thick and fully complies with Russian GOST.
• Works great in closed heating systems with operating pressure up to 3 atm.
• Equipped with automatic gas block 630 EUROSIT (EUROSIT).
• Equipped with a pressure indicator in the heating circuit and a thermometer showing the temperature of the coolant.
• The special connection of the smoke collector ensures simple and convenient installation and maintenance work for the chimney part of the device.
• Warming up of the chimney is ensured, this is especially true when starting the boiler in the off-season, thanks to the built-in damper - “TURBO mode”.
• There is also the possibility of operating the device on liquefied gas; when changing burner nozzles, this is possible and feasible as an option.
• The hearth is also convenient for the user as it has detachable turbulators, it is possible to lay a gas supply on both sides of the device, a reversible door with opening both to the right and to the left, a quick-removable top cover, and a condensate collector. The burner (burner unit) is mounted on an easily detachable mount.
• The burner itself is made of heat-resistant steel - stainless steel with very economical gas consumption.
• High quality build. Multi-level quality control.
• Service life 15 years, factory warranty 24 months.

The Ochag Premium AOGV boiler has the main parts:

• Gas apparatus housing
• Automatic control module
• Steel heat exchanger
• A security system consisting of several subsystems.

A firebox or combustion chamber is installed in the body of the apparatus on the lower side; sections of the heating jacket are located on the side and rear of the apparatus. A heat exchanger is located above the firebox. High efficiency of heat transfer and heat exchange between exhaust carbon monoxide and coolant is achieved due to the progressive convective part of the heat exchanger, which consists of flame tubes.

A smoke collector with a built-in draft stabilizer is installed on top of the heat exchanger. In the front part of the smoke collector there is a draft sensor, in the upper part of the smoke collector there is a boiler outlet pipe.

There is a partition on top of the smoke collector to ensure stable operation of the device regardless of weather conditions. The heat exchanger, complete with a smoke collector, ensures cost-effective operation of the boiler without the participation of the consumer, and does not require any manual adjustments. The draft stabilizer allows the boiler to operate stably even with unstable draft.

A gas burner device is installed in the combustion chamber of the apparatus, which consists of a front panel, burner pipes, safety sensors (flame sensor and draft sensor), and the EUROSIT control system. There is a lattice damper located under the pipes, which helps supply secondary air to the burner.

Device (automation)

The main element is the gas burner. It heats the heat exchanger in which the coolant is located.

It is supplied by gravity or under the action of a circulation pump (purchased separately and connected as an external component of the system) into the heating circuit.

For double-circuit models, a coil is installed around the smoke pipe to heat the hot water of the DHW circuit.

Smoke is exhausted naturally, using the chimney draft, to which the boiler should be connected during installation.

The heating system must be installed taking into account the placement levels of radiators that ensure natural circulation of the coolant.

If this is not possible, you have to use a circulation pump, which stabilizes the liquid movement mode, but makes the boiler energy-dependent.

Description of some models

The Conrod range of gas boilers is represented by several main models:

• KSts-G-S is a single-circuit type boiler equipped with SIT automation. The power of the unit varies from 8 to 30 kW. Water can heat up to 60-90 degrees, operating pressure can range from 0.2 to 1.9 bar.
• KSts-G-N is also a single-circuit type model, but with thermo-hydraulic automation. The boilers are produced with a power from 10 to 30 kW; cold rolled steel was used to manufacture the cylindrical heat exchanger.
• KSts-GV-S is a two-circuit type unit with SIT automation and a power of at least 12 kW. The boiler fully functions when connected to a system with natural and forced circulation.
• KSts-GV-N is a double-circuit model of gas boilers, equipped with thermo-hydraulic automatics. The boiler power ranges from 12 to 30 kW. There is a function to turn off the gas in the absence of traction. With a short-term reverse thrust, the device normalizes operation.

comparison table

The lineup

Conord gas floor-standing boilers go on sale in several series. Each of them has its own characteristics.

1. Conord single-circuit boiler with SIT automation:
   power – from 9 to 27 kW;
2. temperature adjustment ranges from 60 to 90 C;
3. system pressure – from 0.3 to 1.8 BAR;
4. approximate cost – 12,000 rubles.
5. Conord single-circuit boiler with thermo-hydraulic automation:
   power – from 11 to 27 kW;
6. cylindrical heat exchanger;
7. system pressure up to 5 BAR;
8. approximate cost – 13,000 rubles.
9. A unit with two thermal circuits, that is, it can be mounted inside a boiler system:
   power – from 12 to 30 kW;
10. both natural and forced types of coolant circulation are acceptable;
11. the average price is from 15,000 rubles.
12. Double-circuit heating plant with SIT automation:
    power ranges from 11 to 29 kW;
13. both natural and forced types of coolant circulation are acceptable;
14. this model has a specialized sensor that can both turn off the gas supply if there is no traction, and restart the fuel supply when the process resumes;
15. average cost – from 15,000 rubles.

You might be interested >> Description of the double-circuit gas wall-mounted boiler Baxi

Types of burners

According to their design and functional differences, burner devices are divided into:

By purpose:

• for high power industrial equipment
• for household equipment.

By type of fuel used:

• devices for natural gas;
• devices for liquefied gas;
• universal devices.

By adjusting the flame:

• single-stage – capable of operating on/off;
• two-stage (as a variation - models with smooth modulation) - operate at full power, when the desired temperature is reached, the flame is reduced by half;
• modulating - boilers with a modulating burner are characterized by smooth adjustment of the flame power.

According to the principle of operation:

1. injection/atmospheric. They operate by supplying air from the room. They are installed respectively in open combustion chambers. Also used for old-style boiler models.
2. fan/supercharged. They work in isolated combustion chambers. Combustion air is supplied by a fan. According to their design features, they are divided into: - vortex (round-shaped nozzle holes) - direct-flow (shape of a narrow slot with a round/rectangular cross-section).
3. diffuse-kenetic. Air enters two simultaneously: one is mixed with gas fuel, the second is added directly to the chamber during combustion.

Range of boilers Don

The assortment range presented by the Don brand is quite wide. To make it easier to choose the appropriate option, you need to familiarize yourself with the nuances of labeling these heating devices. The numbers in the marking indicate the power of the boilers, and the letters mean the following:

K - this letter is in the marking of all models, because it means the name of the device - “boiler”.

C – is the letter designating the material from which the boiler is made – steel.

T - indicates that the equipment is solid fuel, but can be reconstructed by purchasing and installing a gas burner.

G - installed in the case when the gas burner is included in the standard package.

Vm - designation for an additional DHW circuit.

As an example, let’s take the solid fuel boiler Don KS T 16. This is a single-circuit model, which was manufactured specifically for heating with a power of 16 kW. Well suited for a room with an area of ​​150-160 m².

The solid fuel boiler Don 16 kW can also be double-circuit. 30 kW models are also available. Here are some technical characteristics of these devices.

About company

The production facilities of the Russian brand Conord are located in Rostov-on-Don. Gas heaters have been produced here since the seventies of the twentieth century. Today it is a leading Russian manufacturer, the quality of its products is based on large-scale modernization of production. Instead of old machines, European lines were launched - Swiss and Italian. The cost of manufactured heaters is much lower than European ones - in the range of 15-50,000 rubles.

CONORD is not just a name consonant with the name of a large eagle, it is an abbreviation. It stands for: Heating boilers of non-standardized equipment Rostov-on-Don. The first heating boiler produced by the company is DON-16.

comparison table

Basic faults

The design of Conord boilers is very simple and does not have many details. This can significantly reduce the number of weak points in the design and reduce the number of malfunctions .

The heat exchanger and ignition equipment are usually considered to be the most loaded and most likely to fail. The heat exchanger is susceptible to lime deposits. The additional layer isolates the coolant from the walls, reducing heating efficiency.

It is necessary to increase the combustion mode, which increases the load on the external part of the heat exchanger, which fails faster . The ignition equipment fails due to thermocouple failure or other reasons.

There is also a constant danger of burner nozzles becoming clogged with soot, which can be eliminated by periodically cleaning the boiler.

Video on the topic

Complex automation systems that perform the role of switching operating modes of certain devices are built on the simplest elements. They tend to change any of their parameters (shape, volume, electrical conductivity, etc.) under the influence of one or more factors.

Thus, all modern heating elements are equipped with thermostats that control the degree of surface heating. The basis of any thermostat is a bimetallic plate.

Quality Policy:

How to light it? Why does it go out? Why doesn't it turn off automatically?

Not all users experience problems with ignition of Conord boilers. The usual cause is contamination of the burner nozzles, which have not been cleaned for a long time. The same reason causes the boiler to suddenly go out.

In addition, external conditions can affect the flame attenuation - drafts, insufficient or reverse draft in the chimney caused by strong gusts of wind or improper placement of the pipe.

The absence of automatic shutdown of the boiler indicates an incorrect setting of the operating mode or a failure of the automatic control unit of the unit.

When should you choose the minimum power?

In order to make a more accurate calculation, it is necessary to contact specialists who are able to develop a professional system design, taking into account the individual characteristics of a particular building. It is important to pay attention to the minimum power rating of the unit. The smaller this value is, the more comfortable and economical the device will operate at a minimum of capabilities. This is especially true for the period of spring and autumn, or rather, in the off-season.