What is good about the Conord gas boiler - characteristics, advantages, types

Most autonomous heating systems in private houses or other premises are based on the use of gas boilers.

This is the best option for a source of thermal energy, capable of working independently and not requiring too much attention from the owner.

Most often, imported units are used to ensure stable and reliable operation of the heating system.

However, imported boilers have very serious disadvantages due to the manufacturers’ conceptual approach to the capabilities and specifics of the equipment.

Let's consider gas boilers from one of the domestic companies, which demonstrate a different approach to the operational capabilities of heating units.

Gas boilers from Conord

The Conord plant is located in Rostov-on-Don. It was founded in 1947, and since then has produced various types of heating equipment.

During its work, considerable technological experience was accumulated, the features and disadvantages of imported models of gas boilers were analyzed, and the necessary conclusions were drawn . Today Conord produces several series of gas boilers, which are the optimal solution for the Russian user.

Climatic features, the state of communications, and the possibility of interruptions in the supply of certain resources are taken into account.

The company relied on the production of units that were as independent as possible from external conditions, capable of performing assigned tasks despite the situation.

Non-volatile equipment in Russian conditions is a big plus; it guarantees the preservation of heating during a sudden power outage . This approach is reasonable and highly appreciated by specialists and ordinary users.

All Conord gas boilers have a floor-standing design. This feature allowed the manufacturer not to skimp too much on the dimensions and strength of components and parts.

There are different model lines:

• Single-circuit. Intended only for powering the heating system of the house.
• Dual-circuit. Capable of heating both coolant for heating and hot water for domestic needs (DHW systems).

Various types of automation are used in the design of boilers:

• Thermohydraulic (mechanical type).
• Automation SIT. Automatic operating mode control unit made in Italy. It has a thermostat, a piezo ignition system, an ignition burner with an electrode and a thermocouple.

There are also models with different types of 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.

photo on the left

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 - it does not require power from the electrical network. 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; the Conord anapole 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.

Series and model range

First of all, you should understand the markings of Conord boilers.

It is an abbreviation in which the first letters indicate the heat exchanger material:

• KSC is a steel boiler with a cylindrical heat exchanger.
• KCH - cast iron boiler.

The following letters indicate the feature set:

• G - single-circuit (gas).
• GW - double-circuit (gas with the possibility of hot water supply).

Then follow the numbers indicating the boiler power in kilowatts and the letter indicating the type of automation:

• N - thermohydraulic.
• S - Italian automatic SIT.

For example, a boiler marked KSts-GV-10N means a steel boiler with a cylindrical heat exchanger, double-circuit, 10 kW power with thermo-hydraulic automatic control.

Conord boilers are produced in the following series:

• KSC-G-S . A series of single-circuit units with Italian automatic equipment. They have a piezo ignition system, an additional ignition burner, and a special thermocouple is used for ignition. Designed for heating rooms from 80 to 500 m2, you just need to select a unit of appropriate power. The model range consists of units of 8, 10, 12, 16, 20, 25, 30, 40 and 50 kW.
• KSC-G-N . Single-circuit models with mechanical automation. A special feature of the series is the ability to work in systems with high pressure - up to 5 bar. The power of the models is 10, 12, 20, 25 and 30 kW, which allows you to heat rooms from 100 to 300 m2.
• KSts-GV-S . Double-circuit gas boilers with Italian automatic operating mode control. The power of the models is 8, 10, 12, 16, 20, 25 and 30 kW. This allows you to successfully operate the equipment in rooms from 80 to 300 m2. They have the ability to provide a home not only with heat, but also with hot water, which significantly increases their value for the user and allows them to solve two problems at once.
• KSts-GV-N . Double-circuit boilers with a capacity of 12, 20, 25 and 30 kW. They have a thermo-hydraulic type of automation. They provide heating and hot water supply, designed for use in rooms from 120 to 300 m2.
• KCH-G-S . Single-circuit boilers with a cast iron heat exchanger and Italian SIT automation. Three models are available with outputs of 16, 25 and 30 kW. These units are the most expensive, highly efficient and reliable. They weigh twice as much as steel boilers of the same power.

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.

Specifications

Let's look at the technical characteristics of Conord gas boilers:

Model overview

If communications are connected to your home, you can always provide it with heat and hot water. More than 50% of boilers installed by domestic consumers are gas. Among them, ServiceGaz products are not the least important.

KSG-7AT

If you are looking for the cheapest option, pay attention to the non-volatile single-circuit device KSG-7AT. Its estimated cost is 10,600 rubles. Material of manufacture – steel

Floor-standing option Simple and convenient operation. Saves fuel. Capable of heating 80 square meters. Specifications:

Manufacturing material – steel. Floor-standing option Simple and convenient operation. Saves fuel. Capable of heating 80 square meters. Specifications:

• Maximum power - 7 kW.
• High efficiency – 85%.
• Water pressure – 0.1 MPa.

Stable operation even at the lowest pressure in the gas pipeline. Equipped with a gas block. There is a built-in pressure and draft stabilizer. Compact heat exchanger made of steel. Burner material is heat-resistant stainless steel. Convenient to maintain - the lining can be easily removed. Gas connection - on either side. There is a device that collects condensate.

According to users, the model has excellent characteristics. If you replace the burner nozzles, you can use liquefied gas as fuel.

KNG 24

Approximate price 25,000 rubles. Dual-circuit. Wall. Compact device with stylish design. The latest technical advances have been implemented. Absolutely silent operation - can be installed directly in the room, it will not disturb the residents in any way. The front panel has an LCD screen to display current settings. The boiler can be used for heating rooms equipped with a water heating system and for heating water. Technical specifications:

• Efficiency – 90%
• Can heat rooms with a total area of ​​220 square meters.
• The maximum heating power is 4.6-24 kW.
• There is automatic ignition.
• Gas consumption - 2.6 m3/h.

You can connect a heated floor. Closed combustion chamber type. Capable of operating on natural or liquefied gas. There are several stages of automatic protection. Weighs 36 kg.

KSG-11

Purpose – heat supply of premises for various purposes. Design Features:

• Convenient installation - gas can be connected from any side.
• Floor.
• The door can be reinstalled on the user-friendly side.
• Condensate collection device.
• Steel heat exchanger.
• Thermal insulation – 30 mm.
• Combustion type: low flare.
• Quiet operation.
• It is possible to use the EUROSIT 630 or SABC-AT control unit.

Technical specifications:

• Heating capacity 11 kW.
• Heating area – 125 sq. m.
• Efficiency – 90%.
• Gas consumption – 1.34 m3/h.
• Weight 48 kg.

KSTG-16

Combined single-circuit boiler with a maximum heating power of 16 kW. Can run on coal or gas. Designed for heating 160 sq. m. Floor installation. Without auto-ignition and flame modulation. Efficiency – 74%.

KSG-10 AT

Floor installation. heating capacity 10 kW. Heats an area up to 100 square meters. m. Fuel consumption - 1.11 m3/h. Price – 11,000 rubles. It is possible, by replacing the burner jets, to burn with liquefied gas - 0.88 kg/h. Consumers note the compactness of the device, its dimensions are 25x47x75 cm. Weight is 48 kg. Tank capacity – 18 liters.

KSG-7 E

Floor. Single-circuit. It features stable operation at low pressure in gas supply pipes. Approximate price – 11,900 rubles. Efficiency 85%. Consumers are attracted by compactness, efficiency and stylish design. Heats up to 80 sq. m. Weighs 37 kg. Open combustion chamber. No auto-ignition. There is no flame modulation. Budget version with a limited set of functions.

Parapet modifications

Their distinctive feature is the absence of a chimney. Smoke removal is carried out through a pipe supplied in the kit. Installation – wall. A hole is made in the walls in advance - the chimney pipe is inserted into it. The heater can be mounted on a wall facing the street. Two modifications of the parapet type are available:

• KSGZ - with one circuit;
• KSGZV - with two circuits.

The body is thermally insulated with mineral wool and can be easily removed to access parts of the heater that need cleaning. 89% efficiency. The heat exchanger is protected from salts and scale.

Type

Advantages and disadvantages

The advantages of Conord gas boilers include:

• High quality assembly and manufacturing of components and parts.
• Boiler efficiency exceeds 90%.
• The non-volatile design allows the units to be used in any room or area.
• The service life of boilers is at least 15 years.
• Capable of operating at low gas pressure.
• The manufacturer's warranty on Conord boilers is 3 years.
• The price of the units is noticeably lower than that of other manufacturers.

The disadvantages of the units should be considered:

• The dimensions of the boilers are quite large and require a certain amount of space for installation and maintenance.
• The use of natural draft places increased demands on the design of the chimney and the creation of conditions for high-quality smoke removal.

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.

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 installation of the heating system must be carried out 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.

Briefly about the operating instructions and setup

The operation of Conord gas boilers is not particularly difficult, since the units have a durable and reliable design and are resistant to loads and external influences.

However, to improve working conditions, several simple procedures should be performed:

• Install a strainer in the gas line to prevent fine metal dust and scale from entering the burner.
• Use water softeners or filters. This is especially important for residents of regions with hard water.
• On the return line of the heating system, it is necessary to install a filter that retains scale, slag and other debris that is present in the system. This will protect the heat exchanger from clogging and increase the service life of the boiler.

Compliance with these simple requirements will save the user from having to clean and repair the boiler once again.

Setting up the unit is not difficult - all communications are connected, the strength and tightness of the connections are checked.

Then the operating mode is set and the burner is ignited using a piezo ignition system or a regular match.

Preparatory stage

The correct solution to the question of how to light a gas boiler should begin with checking the connection according to the diagram of all necessary equipment - this is:

• Pipeline decoupling.
• Batteries, heated floors, boiler and other consumers.
• Pumps.
• Expansion tank.
• Filtration installations.
• Thermal sensors.
• Control, monitoring and safety unit.
• Uninterruptable power source.

Installation, connection and testing of the system before a test run is carried out according to the following algorithm:

• A separate branch of the electrical network for the unit is being installed.
• The place where the boiler is installed is checked. The device should be placed at the recommended distance from the wall, window and door to avoid malfunction due to cooling and drafts. The base must be strong and perfectly level, verified by the building level. There should be no flammable materials or substances located nearby.
• The unit is connected to the water supply. The equipment pipes are freed from plugs and connected to the piping using filter modules with ball valves.

Connecting a gas boiler to pipelines Source utepleniedoma.com

• A gas pipeline is connected from the central gas main. The procedure is always carried out by gas service specialists, followed by installation of a meter with a seal.
• The chimney is connected and its draft characteristics are checked.

When all elements are connected, the unit is de-energized and, together with the system, is filled with coolant. After this, the equipment and pipes are checked for leaks. Then the thermostat is turned to the maximum level - as a result, the indication of switching operating modes should turn on.

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.

What problems happen?

The simplicity of Danko's design allows its owners to carry out minor repair work on their own. One of the most common problems is the burner blowing out. This is especially common in strong winds. Usually no fault is found, the wind is the culprit of the problem, but it is better to check the following points:

• Is there a check valve installed in the chimney? If not, then there will be no reverse thrust, which is why attenuation occurs.
• If the chimney is installed incorrectly, it becomes clogged with soot and other combustion products - it needs to be cleaned.

It happens that before the attenuation, extraneous noise is heard or increased fuel consumption is observed - this may indicate a failure of the controller. The task is to repair or replace a spare part.

Another common problem is the pilot light going out. It goes out due to the activation of the thermostat, which shuts off the gas supply if the burner does not heat up to the desired temperature.

How to serve

Maintenance of Conord boilers consists of maintaining the cleanliness of the body, timely removal of soot or ash from the burner and performing other necessary procedures.

Most of the work is performed by the owner of the unit, but for some activities it is necessary to invite a specialist from a warranty or service organization. This must be done annually, or as urgently necessary - in case of problems or breakdown of the boiler.

Attempts at self-repair can cause permanent failure, so you should entrust complex operations to professionals.

Any attempt to independently interfere with the boiler design will be regarded as termination of the warranty agreement at the initiative of the owner.

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.

Removing air pockets before lighting a gas boiler

Air vents must be installed in the upper fitting of each radiator. These can be Mayevsky taps, or automatic valves.

The automation will handle everything itself, you just need to give it a little time (the fact that the air has escaped will be indicated by a drop in pressure).

To bleed air using a Mayevsky crane, you need to prepare a bucket, a rag, and a special key from the installation kit (or a screwdriver and pliers).

A container is placed on each radiator one by one, the tap is unscrewed, and the air hisses out. Then the battery will begin to “spit” air mixed with water. You can close the air vent when a trickle of water flows from it.

Approximately 5-7 minutes for each radiator - and the first air pockets are removed. The pressure gauge readings are checked (they should drop) and the water tap is turned on again. It would be good to repeat the air release procedure again.

Ultimately, the pressure should be above average, but not maximum, because when the water heats up, the pressure will increase further.

Pressure testing and washing

Pressure testing of the system is not the most necessary preparatory stage, but it is desirable, since it will show defects and leaks in advance, if any.
Pressure testing is not always done due to the lack of a special pump and the reluctance to call a team, but if the heating fails in the midst of cold weather, the costs can be much higher!

It is especially important to check a new system and one that, on the contrary, has been in use for several years.

The cost of crimping in construction companies is from 3,000 rubles. Additionally, they may charge a fee for visiting the site (about 2 thousand rubles). By the way, a manual pressure testing pump will cost 4.5 – 6 thousand rubles.

Turning on the boiler

1. The gas boiler is plugged into an outlet.
2. The switch must be set to zero.
3. The gas supply is turned on (the tap on the gas pipe is opened).

Further actions may differ for different models of gas boilers.

For example, the switch for Aton or Danko boilers needs to be set to the “star” icon, press the entire switch and hold it for 5-10 seconds.

Then, without releasing the switch, press the button located nearby.

The unit will respond with a characteristic click and hum. After which the regulator is released and the required power is set.

To turn on the Baxi boiler, you also need to turn on the gas, plug in the plug and press the “Start” button. The operating sound will appear. You need to give the device a little time, and it will automatically ignite the flame. After that, you need to press the power button again and connect the heating circuit (the corresponding icon will appear on the display). Finally, using the buttons, the desired temperature is set.

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To organize a full-fledged heating system in a private house, it is necessary to install a boiler. The article https://microklimat.pro/otopitelnoe-oborudovanie/kotly/kak-vybrat-dlya-chastnogo-doma.html discusses the main criteria for choosing heating equipment.

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.