Features of gas double-circuit boilers Vaillant

The German manufacturer of boilers Vaillant is among the top suppliers of heating equipment worldwide. The boilers of this manufacturer are deservedly one of the highest quality and reliable devices for residential heating.

This company is the first in the number of sales of gas double-circuit boilers in Europe. This product attracts buyers with its stylish design, long service life and easy handling. Vaillant company produces its boilers using the newest European technologies, constantly improving these products.

It is worth noting the main advantages that make the products of this company so popular:

• the use of high quality materials and parts during assembly;
• high reliability and duration of work;
• a wide choice of the most various models among which it is possible to choose a copper under the most different preferences;

• relatively low price for double-boiler, which attracts buyers;
• high level of security;
• acceptable level of efficiency;
• profitability.

The double-circuit German boilers Vaillant allow you to maintain a stable heat in the room and quickly heat the water for domestic needs.

Consider the standard double-circuit boiler brand Vaillant from the series «Pro». This boiler has two heat exchangers. The first one is intended for heating a residential building and is usually made of high quality copper. The second is designed to heat domestic water and is made of durable stainless steel. The components of this boiler include several items.

A coaxial chimney with a diameter of 60/100 involves the use of two pipes of different diameters, which are inserted one into another. Such a device provides simultaneously the output of combustion products and the flow of air from the street.The boiler has an expansion tank of 10 liters, which is enough.

The kit also includes a circulation pump, which accelerates the coolant through the radiators, ensuring even heat distribution throughout the house. Also in this pump has an automatic air vent.

The boiler has a gas burner, which has a modulation of the flame from 40% to 100%, and a metal hydraulic unit, which has a secondary heat exchanger.

The manufacturer offers boilers of various models. They can be floor or mounted. Usually, floor models are installed when it is necessary to heat large areas. Such boilers are larger and heavier. For a standard private house, a mounted boiler is quite suitable, which can be placed anywhere.

Depending on the wall boiler model, its power may be different. Typically, indicators are 36 kW, 28 kW, 24 kW and 12 kW. It is also worth noting that the air supply in the boilers can also be different.For this, a special fan can be used, and maybe a natural air supply from the street.

One of the most frequently purchased models is the “Vaillant TurboTec plus VU 122-362”. This device is extremely easy to use and install. Such a boiler has a coaxial flue exhaust system, a closed combustion chamber and an efficient flue gas removal system. By power, these models are different.

In such a unit there is an automatic security system that controls the level of pressure, temperature and other internal processes of the boiler. The price of such a device will be from 50 to 70 thousand rubles, depending on the power.

The next model of a gas boiler, which is acquired no less often, is “Vaillant AtmoTec plus VUW / 5-5”. The power of such equipment is usually 24-28 kW. This dual-circuit heating boiler is extremely simple in operation, which significantly increases reliability and eliminates the possibility of breakdowns. This model has an open burner and a natural process for the removal of combustion products.The boiler also has a convenient control panel with an LCD display. This is a reliable and powerful model that is perfect for heating and heating water in a private house. The price of this boiler will be from 60 to 70 thousand rubles.

Another model that is in high demand is the “Vaillant AtmoTec Pro”. The device has an extremely simple control panel with an electronic display, automated security system and diagnostics, as well as a natural conclusion of combustion products. The price for such a boiler will be about 60 thousand rubles.

The next model worth noting is the Vaillant EcoTec Pro. This boiler uses condensation technology. The principle of its work is to create steam from the products of combustion, which, in turn, condenses, that is, turns into water. This condensate is collected at the primary heat exchanger. In general, this allows to increase the efficiency and efficiency of the boiler. In addition, in standard boilers, the products of combustion are discharged into the environment, which is not very good for it. But condensing boilers are environmentally friendly and economical in this regard. The efficiency of this boiler is almost 110%, which is an extremely high value.This boiler is guaranteed to be able to heat a large room and heat the water for residents. The price of such a boiler is higher than the previous ones, and can range from 80 to 93 thousand rubles.

After the acquisition and installation of the heater, it is necessary to carry out its first start correctly.

There is nothing difficult in this, it is only necessary to be guided by an understandable instruction, the basic principles of which are as follows:

1. It is important to use water with a low level of hardness. Hard water adversely affects the components of the boiler, in particular, heat exchangers.
2. Before switching on it is necessary to remove the air from the heating system, otherwise the heat will be unevenly distributed.
3. Individual settings should be made on the control panel.
4. After switching on, it is necessary to monitor the pressure indicator. If the gauge needle is extremely unstable, it means that the integrity of the heating system is broken.

When troubleshooting, the system issues a fault code on the display, the value of which is indicated in the equipment manual. This may be a strange sound when the boiler is turned on, too loud noise during operation, pressure surges, problems with the gas burner.

Among the most frequent faults are the following:

• Code "F22". It usually means insufficient water. If such a problem occurs, it is worth checking the operation of the circulation pump. It is possible that he does not carry out the necessary level of circulation of water.
• Code "F28". With such a malfunction, the boiler does not start. There are several reasons for this - improper equipment grounding, a large amount of air in the heating system, low gas supply pressure, or a breakdown in the control system.
• Code "F29". This code indicates a malfunction with a gas burner. For example, its flame can go out or there is a pop when it starts.This may indicate problems in the pipeline itself, a weak spark during ignition or insufficient gas supply.

• Code "F75". This error indicates faults in the boiler pressure. The cause may be a breakdown of the circulating pump or air entering the heating system.
• Codes "F5" or "F6". These errors indicate improper removal of combustion products. In this case, check the ventilation system. It is possible that it is clogged or on the outer part of the pipe, which is located on the street, frost has formed.

These are the most common mistakes that users encounter most often. It should be noted that in case of serious malfunctions, it is recommended to contact specialized specialists or the manufacturer’s contact center. Vaillant is always ready to provide users with advice or to carry out a quality repair of equipment. It is extremely important to know that if it becomes necessary to replace parts of the boiler, they should be replaced only with original spare parts of the same brand, and not with any other.

Prevention of heating equipment and inspection of parts should be carried out at least once a year. This will allow you to identify possible problems before the occurrence of breakdowns.

It is advisable to install the boiler in an area of ​​at least 4 square meters, where the height of the ceilings should not be less than 2.5 meters. The room must also be constantly inflow of fresh air. It is advisable to install the boiler not close to the wall, and leave a small gap for maintenance work on equipment.

Among the reviews of the boilers of this brand is difficult to find any negative points. These are exclusively private and individual cases that depend on many factors. In general, most users are satisfied with the work of the heating equipment brand Vaillant. The owners note that such boilers for a very long time can operate without interruption and provide a stable supply of hot water and constant heating of a private house.Some users have noticed power surges. This problem depends on the power supply. If necessary, the unstable voltage is solved using a stabilizer. The owners note that the Vaillant boiler fully justifies its high price with impeccable work, high quality and stylish design.

So, double-circuit boilers of the German manufacturer Vaillant are deservedly the market leaders among the cheaper heating equipment. Such a boiler will bring heat to any home and will work stably for a long time.

Overview of the boiler Vaillant TecPro - see the next video.