The principle of operation of the ferroli gas boiler. We make a choice of a gas heating boiler Ferroli

  • 20.06.2020

When choosing heating equipment for heating our home, we strive to make a reasonable choice between the reliability of the purchased equipment and its cost. To do this, we choose products from the most reliable and well-known brands. If you buy equipment from market leaders, you should pay attention to gas boilers Ferroli. They are distinguished by the maximum level of reliability and meet the most stringent quality and safety standards. In this review, we will talk about the most popular models and introduce you to user reviews.

Ferroli gas boilers and their features

Ferroli has a history of more than 50 years. Having started its journey as a simple workshop, at the moment it includes 14 factories for the production of heating equipment. Its products are known in many countries of the world. Today she produces:

  • Wall mounted gas boilers;
  • Boilers of condensing type;
  • Floor heating units;
  • Accessories and auxiliary equipment;
  • Radiators and more.

Ferroli Italian gas boilers are distinguished by the highest degree of safety, which is dictated by many European standards. The choice of consumers is offered a variety of model lines, including successful and popular models.

When developing heating equipment, Ferroli specialists strive to create gas boilers that can serve for years, featuring a minimum number of breakdowns and problems in operation. They use reliable heat exchangers with a high level of corrosion resistance, efficient burners and reliable electronics with convenient control.

Popular Models

In this section, we will consider the most popular models of Ferroli gas boilers - these are popular single-circuit and double-circuit samples with one or two circuits, as well as with open and closed combustion chambers.

The Ferroli Arena C24 wall-mounted gas boiler is a 24 kW double-circuit heating unit with an open combustion chamber. It can heat rooms up to 240 sq. m, spending no more than 2.73 cubic meters. m of gas per hour. It is also possible to work from sources of liquefied gas - in this case, fuel consumption will be 2 kg / h. The power of the equipment is regulated over a wide range - from 7.2 to 24 kW, carrier temperature - from +30 to +85 degrees, water temperature in the DHW circuit - from +40 to +65 degrees. The capacity of the hot water circuit is up to 13.7 l / min.

An important advantage gas boiler Ferroli Arena C24 is the presence of a copper primary heat exchanger. The second heat exchanger is made of no less durable stainless steel. Inside there is already all the necessary piping - this is an expansion tank with a volume of 7 liters, circulation pump, safety valve and air vent. All necessary security systems are also provided on board.

For more convenient control, in addition to this model, it is recommended to buy an electronic room thermostat.


Mounted boiler Ferroli Atlas D can hardly be called gas. This is a universal model, as it can work not only on gas, but also on diesel fuel. The basis of the unit is a durable cast-iron heat exchanger with powerful thermal insulation made of mineral wool. The model is single-circuit, its thermal power is 30 kW, which is enough to heat an area up to 300 square meters. m. To put the unit into operation, you must purchase a mounted burner - diesel or gas.

The main features of the gas boiler Ferroli Atlas D 30:

  • Low power consumption - only 5 W;
  • Convenient control panel;
  • Ability to connect external panels and programmers;
  • High level of efficiency - up to 95%;
  • The temperature of the coolant in the heating system is up to +95 degrees;
  • Possibility to connect and control an indirect heating boiler.

The hinged gas boiler Atlas D 30 from Ferroli from Italy is a reliable solution for heating buildings for any purpose.


If you want to choose a good heating unit for a large dwelling, we recommend that you pay attention to Ferroli condensing type wall-mounted boilers. They will delight you with an appropriate level of reliability and a high level of efficiency. And before us is a typical representative of this category - this is the Ferroli Bluehelix Tech 35A model. The unit is single-circuit, with a closed combustion chamber. Its power varies from 6.6 to 34.1 kW with a maximum gas consumption of up to 3.68 cubic meters. m/hour.

The Ferroli Bluehelix Tech 35A gas boiler is built on the basis of a stainless steel heat exchanger, which determines its resistance to corrosion. You don’t need to buy additional piping - there is already an 8-liter expansion tank, a circulation pump and a safety group on board. The device is characterized by high efficiency, since it works according to the condensation scheme. The possibility of joint work with a solar collector is also implemented.

The disadvantage of the unit is its high cost, which is approximately 65 thousand rubles - such high prices are typical for all condensing gas boilers from the Ferroli company.


Single-circuit heating Ferroli boilers The Diva series are made on the basis of copper heat exchangers and are equipped with informative control systems with LCD displays. One of the popular representatives of this model range is the Diva C 13 unit. Its thermal power is 13 kW, gas consumption is up to 1.51 cubic meters. m/hour. It is also possible to work on liquefied gas with a consumption of up to 1.12 kg / h. Despite the fact that a simple control panel is provided on board the device, it is most convenient to use an external thermostat.

The Ferroli Diva C 13 gas boiler is equipped with an electronic flame modulation system, a thermometer and a pressure gauge are located on the front panel to control the most important parameters of the heating system. Inside we will find an expansion tank with an increased volume (10 liters), a low-noise circulation pump, an automatic air vent and a safety valve.


Many consumers give their preference not to wall units, but to floor units, believing that the latter are distinguished by an increased level of reliability. And this is true, because cast-iron heat exchangers are often used here. A popular representative of the family of floor single-circuit gas boilers from the Italian company Ferroli is the Pegasus 23 model. Its heart is a heat exchanger made of corrosion-resistant cast iron. Thermal power adjustable from 8.8 to 23 kW, fuel consumption - up to 2.68 cubic meters. m/hour.

The floor-standing gas boiler Ferroli Pegasus 23 is suitable for heating buildings for any purpose - these can be small cottages, administrative or industrial buildings. The combustion chamber in this model open type, a thermometer with a pressure gauge is provided on board, there is no piping. For more convenient control, it is recommended to connect an external control module - a room thermostat.

The average cost of this unit in the domestic market varies between 46-50 thousand rubles, which is associated with the use of a cast-iron heat exchanger.


Before us is a simple heating gas boiler from the Italian company Ferroli, which is distinguished by its affordable cost - it is about 22-23 thousand rubles. The model is a double-circuit, built according to the scheme with a closed combustion chamber. Its power is 7.2 kW, the performance of the DHW circuit varies between 11.3-13.7 l / min when the water temperature changes by 30-35 degrees. Natural or liquefied gas is used as fuel - in the latter case, the equipment will need to be reconfigured.

The Ferroli Fortuna Pro 16 gas boiler has a high level of efficiency - it reaches 93.1%. The primary heat exchanger is made of copper, which is already a big plus. The secondary heat exchanger is made of stainless steel. For convenient control of operating parameters, there is a miniature liquid crystal display with blue backlight on board. It is also possible to connect external room thermostats.


This unit is interesting not so much for its condensing operation scheme, but for its flexible settings. The temperature of the coolant is regulated here within a gigantic range - from +20 to +90 degrees. The thermal power of the unit varies from 3 to 18 kW. The heat exchanger is made of durable aluminum alloy, characterized by low inertia and an acceptable level of reliability. The maximum fuel consumption is 1.9 cubic meters. m/h for natural gas and up to 1.41 kg/h for liquefied gas. The pressure in the heating circuit should not exceed 3 atmospheres.

The wall-mounted gas boiler Ferroli Econcept Tech 18 A is designed to work in private households and apartments. It is equipped with a variety of safety systems, self-diagnosis, automatic air vent, safety valve, pump blocking protection, electronic flame modulation, as well as a simple control system with a small display. The gas boiler from Ferroli received excellent user reviews, which indicate the absence of problems in operation and the reliability of the equipment.

Today, a gas boiler is a necessary thing in every home. Every year, the inhabitants of our country have to deal with planned and unscheduled outages. hot water. And private houses and many new buildings, in general, are designed only for individual heating. As a result, sooner or later, many of us have to think about purchasing a boiler or boiler. This article will focus on Ferroli gas boilers. Let's talk about the types of heaters, their operation and possible breakdowns.

Kinds

Ferroli is an Italian company that produces various household appliances from heaters to a variety of air conditioners. For the first time she declared herself in the middle of the last century. Over the decades of its work, Ferroli has become an international company that has branches all over the world, including Russia. In our country, their products are known for their high quality and affordable price. Heaters are the main layer produced by the technology company. Basically, their varieties depend on the source of nutrition. Accordingly, they are:

  • gas;
  • electric;
  • solid fuel;
  • diesel.

This article will focus on gas boilers. They, in turn, are also divided into subspecies according to their parameters. Let's look at them in more detail.

  • single circuit- the simplest version of the boilers. Designed exclusively for space heating. They are not able to heat water, which means that in addition you will have to purchase other equipment. But single-circuit boilers have high reliability, which is provided by the internal device. Its main elements include a heat exchanger, expansion tanks and circular pumps.

  • Dual circuit- Solve the issue with the purchase of additional equipment for heating water. This equipment is aimed at performing two tasks at once. These heaters are equipped with two heat exchangers. The water that circulates through the heat exchanger serves not only to heat the room, but also to provide hot water.

It is worth noting: a double-circuit boiler does not exceed in size a single-circuit one. But due to the complex structure, the level of reliability decreases. By the way, there is a bithermic subspecies of double-circuit boilers. Its peculiarity lies in the fact that one heat exchanger is located inside the other. With this structure, boilers become the least reliable.

  • Open combustion chamber- heaters that need an influx of oxygen coming from the external environment. Therefore, the occupied premises must be equipped with ventilation and a chimney. The latter is necessary to remove combustion products. Before installing such a boiler, the room will have to be prepared in accordance with all fire safety rules. This type of boilers has a simple structure, high reliability, low productivity. Models make little noise during operation.

  • Closed combustion chamber- such boilers are the least harmful to the environment. They work with a special burner. Among other parts, they have a fan that supplies air. It also removes combustion products, so it does not matter if there is draft in the chimney or not. This type of boiler is the most productive, but less reliable. Often there are problems with the fan. By the way, it makes a lot of noise during operation.

Many of these models are condensing. That is, they differ in low fuel consumption with a fairly high efficiency. Others (convector boilers) lose a lot of heat along with combustion products, which is a serious disadvantage.

  • wall- the most popular type of gas boilers. The demand for them is due to their compact size, affordable price and sufficient performance to heat an apartment or private house. They are also easy to install due to their light weight. This type usually has a closed combustion chamber.

  • floor standing- a powerful type of boilers, designed to heat large rooms. Their dimensions and weight far exceed the parameters of wall heaters. The price is also noticeably higher. Such boilers are rarely used in everyday life.

The lineup

Ferroli brand products boast a wide range of different models. You can choose a heater based on any requirements. However, not all of these models can be presented in Russian household appliances stores. Fortunately, today Internet services with a delivery service can always come to the rescue. Consider the most famous and common boilers from Ferroli.

  • Domina N- one of the new models released in 2013 to replace the old boilers that were discontinued. The unit belongs to the bithermic subspecies, that is, it has two heat exchangers and the second is located inside the first. They are made of copper and coated with a heat-resistant substance that increases the service life. Wall-mounted boilers of this model can have both a closed combustion chamber and an open one. Domina N has a long range of advantages, including: nice design, small size and weight, electric ignition function, anti-blocking pump system, frost protection, the ability to connect a remote control, high efficiency, safety and reliability.

  • Ferroli Diva- Another modern wall-mounted boiler. It has two heat exchangers to heat the room and provide hot water. Equipped with a simple and accessible control panel with a digital display. Like the Domina N model, it has subspecies with different combustion chambers. Among the advantages of Ferroli Diva is the elegant appearance, easy installation and maintenance, electric ignition, 93% efficiency level, self-diagnosis, safety, plate heat exchanger for hot water, anti-corrosion coating of the steel combustion chamber, and an electronic board for power modulation.

  • Divatop Micro- the latest of the models, featuring a number of innovative features. Quite a popular boiler today. Boasts improved efficiency and reliability. Consists of two separate heat exchangers made of copper. And three-way inverter valves provide ease of use. The boiler program is able to independently maintain the set temperature for a long time. This model has an innovative self-diagnosis system that ensures maximum safety of operation.

The price of Divatop Micro may seem too high compared to analogues, but at the same time the boiler is equipped with a full range of accessories that make it much easier to manage. Other features include variable speed fan, LCD display, automatic system recognition of weather conditions, wide functionality and convenient location of internal components.

  • Pegasus 23- a popular model of floor boilers. Of course, they are chosen less often than wall-mounted ones. The point is the high price and power, which is not needed to heat a house or apartment. But some people own large cottages that are not easy to heat with a medium-sized boiler. Here Pegasus 23 comes to the rescue, whose power reaches 23 kW. The cost of the model can reach 50 thousand rubles. It is due to the presence of a cast-iron heat exchanger, which ensures maximum reliability of the boiler. It is also resistant to corrosion. The boiler is equipped with elements such as a thermometer and a pressure gauge.

  • Bluehelix Tech 35A- wall-mounted boiler, superior in power to some floor-standing ones. Designed specifically for heating large rooms. The model is a condensing type heater. The type of combustion chamber is closed. Maximum power - more than 32 kW. At the same time, the boiler is very reliable. At the heart of Bluehelix Tech 35 A is a heat exchanger made of stainless steel. In addition to it, an 8-liter expansion tank and a circulation pump are available. The filling dictates a solid price - about 65 thousand rubles.

  • Atlas D30- An interesting model that can run on both gas and liquid fuels. This boiler is single-circuit and has a cast-iron heat exchanger. And its thermal insulation is made of mineral wool. The maximum power of the unit is 30 kW. Among the advantages can be identified high level Efficiency exceeding 93%, the ability to connect an additional boiler or other external panels, as well as a low amount of electricity consumed. However, there are also certain disadvantages. To use the boiler, you will need a mounted burner, which will have to be purchased separately.

  • Fortuna PRO 24F- one of the most popular wall models. can brag positive feedback from the owners of private houses, because the unit is intended for their heating. It is capable of providing heat to an area of ​​240 square meters. In addition, the boiler will please you with hot water supply. Maximum power - 25 kW, efficiency - 93%. The heat exchangers inside it are separate. The type of combustion chamber is closed. There is an expansion tank of eight liters. By the way, if desired, the heater can be converted to work on liquefied gas.

  • Econcept Tech 18A- stands out from other models with its flexible adjustment system. But alas, it is not able to boast of high power, whose maximum does not exceed 18 kW. The same can be said about the average reliability indicators. This is due to the aluminum alloy from which the heat exchanger is made. But among the advantages, an increased level of security can be distinguished. It is achieved by the self-diagnosis function, automatic air vent, safety valve, electronic flame modulation and other useful systems.

Launch and control

Most modern models are equipped with automated control systems. And if not, they can be purchased separately and connected, which will greatly simplify the operation of the boiler. To properly start a gas heater from Ferroli, you must first connect it to the mains and turn it on by pressing the start button. It may take about 15 seconds for the boiler to start up. Then open the burner and ignite.

To turn off, close the valve and press the corresponding button. It is also recommended to disconnect the boiler from the mains, however, when completely disconnected, the heater may freeze. To avoid this threat, you need to drain the entire water. You can also add antifreeze to it.

Remote controls make it much easier to set up the job. Moreover, the adjustment in all models is carried out according to the same scheme. You can install such a remote control in any room, and you do not have to visit the boiler every time you need to change the settings. You can manually change the room temperature or heat exchanger temperature, set a specific operating mode, enable the comfort function or reset all preset settings.

Also with its help you can give commands to the boiler sensor and set the expansion tank settings. And the digital display, which is almost always present on the remote, will notify you of errors that have occurred. This feature greatly simplifies maintenance. Accordingly, the service life is increased.

Faults and repairs

Even if your boiler is of European quality and enviable reliability, sooner or later you will encounter certain breakdowns. But don't worry. Any modern model will try to notify you about this and tell you exactly what the malfunction is. She does this using a display or color indication. In the second case, the indicators on the control panel start flashing. Why does the boiler not heat water and the red light is flashing? What does bad ignition mean? Answers to these questions and a detailed designation can be found by referring to the instructions or special Internet sources.

Consider the error codes that are displayed on digital screens.

  • A01 - no flame. This error means that the system made several attempts to start the fire, but none of them worked. Valve closed or gas pressure too low. Also, the problem may be the incorrect connection of the electrodes. Examine the wiring. If everything is in order, restart the equipment. The operation of the control board may also be disrupted.

  • A03 - the boiler has overheated. The alarm sensor registers an elevated temperature and shuts down the equipment until it returns to normal. The reason is often a violation of the circulation of water. This happens due to low pressure or when air enters the system.

Keep in mind that the sensor itself can also fail and register incorrect readings. In this scenario, it should be replaced.

  • A06 - ignition has been carried out, but there is no torch. This error occurs when the gas pressure is low.
  • A08 - the overheating sensor is out of order. First of all, check its wiring for breaks. If everything is in order with it, the sensor must be replaced.
  • F05 - the process of removing smoke from the room is violated. Usually the problem is with the air pressure switch. Pay attention to the correct connection of the connections.

Also, the problem may lie in the heater diaphragm. However, most often the code is displayed due to a clogged chimney. Just do some cleaning.

  • F10 - two reasons. The first is a short circuit. The second - somewhere in the temperature sensor circuit there was a break. Check if there is contact between the sensor and the control panel. The problem is solved by reconnecting the wiring. Find out the current resistance of the sensor. If it is defective in all respects, replace it with a new one.
  • F14 - a problem with the second pressure heating circuit sensor. Most likely, it is damaged and needs to be replaced with a new one. Either there is a short circuit or a break.

  • F34 - the voltage of the electrical network is too low. The boiler gives an error when it drops below 180 V. If the problem occurs too often, it is recommended to connect the boiler to a stabilizer.
  • F37 - the pressure level has noticeably decreased in the heating system. The relay contacts open. If there is a problem, replace it. And look all over heating system, it may show leaks.

  • F39 - a short circuit or open circuit of the outdoor temperature sensor has occurred. Check resistance and wiring between sensor and control panel.
  • F50 - the gas valve modulation coil is defective. It should be called to identify an inter-turn circuit or open circuit. Check gas valve. Maybe there is an error in the operation of the control panel. Perform a reset.

Some of the problems can be eliminated with your own hands. For example, to release air or increase pressure is a simple matter. You can clean the heat exchanger if you already have experience in this matter. But in most cases, it is recommended to call a specialist or contact a service center. Masters will conduct detailed diagnostics and troubleshoot without causing harm to the system. And in order for breakdowns to occur as rarely as possible, a few simple rules should be followed. Perform maintenance and cleaning at least once a year. Replace damaged parts to avoid more serious damage. Don't skimp on installing a heater. Entrust this business to the masters who will do everything right.

Ferroli gas boilers have earned the trust of consumers and are now positioned as high-quality equipment from Europe. The company itself is one of the world's leading manufacturers of heating equipment.

In a private home, Ferroli boilers always provide the latest in performance, reliability (time between failures) and user friendliness (ergonomics, noise, convenience ...).

What is Ferroli - history

The boiler company was founded by the Ferroli brothers in 1955 in Italian city San Bonifacio (Verona). The first order is the supply of gas-fired steel boilers for municipal houses in Verona.
In the future, thanks to perseverance, resourcefulness, the creators managed to significantly expand the company, turning it into a leading manufacturer.

  • In 1962, Ferroli introduces cast-iron boilers to the market, for the production of which an automated casting process was created.
  • In 1967 put into operation automatic line for the production of cast-iron radiators on new automatic lines.
  • 1973 - a plant for the production of steel and aluminum radiators,… etc.

Now Ferroli assembly plants are located in Italy, Germany, Spain… The company supplies a range of modern equipment:

  • heating boilers;
  • climate systems;
  • shower cubicles;
  • radiators and heating equipment;
  • electric motors.

Classification of models, names of Ferroli boiler lines

Wall mounted boilers:

  • diva,
  • Domina N,
  • arena,
  • Divatop Micro,
  • Divatop-H,
  • Divatop Micro LN,
  • Divatop 60,
  • Domiproject-D

Floor units, - examples of models:

  • Pegasus-56,
  • Pegasus-2S,
  • Pegasus D,
  • atlas,

Condensing options:

  • econcepttech,
  • econcept-ST,
  • energy top,
  • econcept combo,

Features of the most economical condensing boilers

In Europe, condensing boilers are required to be used at the legislative level. Since these devices save energy and pollute the environment less.

In the technical specifications of the condensing boiler, you can find that the efficiency is estimated to be more than 100%. This technical nonsense is obtained because the boiler uses the energy of the phase transition of water from vapor to liquid. This energy is not taken into account when determining the calorific value of fuel combustion. Thus, there is a fuel saving of 10 - 25%, depending on the ability to fully use low-temperature heating.

The fact is that the boiler will operate in a super-economical mode only at low coolant temperatures - the heating system in the house must be appropriate. You can learn more about such heating on this resource ...

In addition to collecting energy from water vapor, Ferroli condensing boilers use other innovations - the best automation, weather-dependent control, the latest materials and equipment ...

But it is in our conditions that the increased price makes them weakly competitive, and the reason is low energy prices ...

Modern models of gas boilers Ferroli

Consumers in the recent past have had popular models of gas boilers Domiproject-D and Divatech-D. Now they have been replaced by model lines called Diva, Domina and others. But it is likely that these lines of European quality gas heating equipment will be replaced by more advanced models in the near future ... After all, the company shows dynamic development and constantly updates its lineup.

More often at Ferroli you can find double-circuit versions of boilers, where hot water is prepared in a second additional heat exchanger.

Power is presented in a wide range, for example, wall-mounted automated gas heat generators can easily cover the heat needs of private houses and apartments. A power step of 4 kW will allow you to choose the right option in the model range - ... 20 kW, - 24, 28, 32 ...

Open and close combustion chamber

Design features of the modern range of heating boilers from Ferroli - the ability to purchase the same model with either an open or a closed combustion chamber. Options with an open chamber are indicated in the names with an additional letter "C". The option with a closed (forced) burner is marked as "F".

Often, consumers ask the question, which boiler is better - with an open or closed burner. The answer is known - both are good for their conditions. Atmospheric open burner operates under the influence of chimney draft, takes air from the room, it can only be placed in a special furnace with a regulated inflow fresh air, and a high chimney that creates the necessary draft.

A boiler with a closed forced combustion chamber can be located in any non-residential premises, for example, in the kitchen, and the air will move through the burner under the action of a fan along the same double pipeline - fresh from the street, exhaust gases back.

Line of wall-mounted boilers Domina-N

The Domina-N model has a copper heat exchanger with a particularly resistant coating, which is claimed to have the longest trouble-free operation.

Modulating burner, change of heating power and domestic hot water floor by microprocessor control. Low-noise injection burner made of AISI 304 stainless steel.

Diva

The Ferroli Diva line, like the others modern models, equipped with a copper heat exchanger coated with an aluminum alloy, which is considered to be highly resistant to thermo-chemical aggression. Information liquid crystal display, a large degree of automation and self-diagnosis. And other achievements modern technologies used on boilers from Ferroli:

  • electric ignition without igniter;
  • frost protection system;
  • water hammer protection;
    And much more.

Divatop Micro

Divatop Micro range - wall-mounted boiler small size where the latest innovations have been applied. Provides programming for a long period of operation.

  • Possibility to connect Romeo remote control;
  • Possibility to connect Oscar room programmer device;
  • the ability to operate both on liquefied and natural gas (subject to the use of a special kit).
    As well as all other achievements of the company…

Reviews that say about Ferroli boilers

Boilers of this brand have been in operation for a long time, a lot of reviews have appeared, which basically indicate that we are talking about high-quality European equipment.

Note first of all:

  • general ergonomics that meets the highest modern requirements;
  • the use of parts, materials of the highest quality, from other leading world manufacturers. For example, there is a Siemens valve ...;
  • relatively quiet operation;
  • long maintenance-free service life, reliability.

Negative reviews about Ferolia boilers that can be found are mainly associated with poor gas quality and unstable power supply:

  • high gas consumption - but it is equally increased in the gas stove, to heat the kettle;
  • the ignition of the burner occurs with cotton, - it is difficult to ignite the gas on the stove ...;
  • failure of the electronics - turning on the boiler without a protective voltage stabilizer, which the trading organization warns about, and without which it does not give a guarantee for the equipment ...


Ferroli Italian gas heating boilers are very popular due to their reasonable cost, a large assortment products, as well as full adaptation to domestic operating conditions.

Ferroli produces eleven main models of gas-fired heating equipment, as well as 30-40 modifications that differ in the principle of operation, performance and other technical characteristics.

Equipment Specifications

In order to decide on the choice of a suitable Ferroli heating boiler model and narrow the search circle, several main technical characteristics can be distinguished. It is customary to divide equipment into several categories according to the following features:


Condensing boilers are connected to a horizontal coaxial chimney. Models with closed combustion chambers are connected to the power supply system of the house. Air intake, removal of combustion products is carried out forcibly with the help of fans.

Mounted condensing boilers

The quality of Ferroli boilers is especially evident in condensing equipment, the efficiency of which reaches 109%. The principle of operation is based on the use of thermal energy of steam resulting from the combustion of blue fuel.

The flue gas temperature is used to generate additional heat, and does not go into the chimney as in conventional models.

Condensing wall-mounted double-circuit and single-circuit gas boiler Ferroli with a closed combustion chamber has the following features:

The sensitive burner in condensing boilers is capable of operating at low gas pressure. As a heat carrier in the heating system, you can use water or non-freezing liquid (antifreeze).

Wall mounted boilers with atmospheric burner

Atmospheric boilers are a classic design that provides for an open combustion chamber and a burner, the air to which is supplied by means of natural circulation. The intake of air masses is carried out from the room used for the needs of the boiler room.

The advantage of atmospheric Italian wall-mounted single-circuit and double-circuit gas heating boilers Ferroli is the simplicity of design. The disadvantages are higher gas consumption and lower productivity.

Installation of a hinged atmospheric type boiler is quite simple. The equipment is provided with important components that affect the performance of the system. The expansion tank, circulation pump, gas valve and burner are included in the basic package and are already installed in the boiler body.

Electric or piezo ignition available. The second option is more economical, since the pilot burner turns on only when the flame is attenuated.

Floor atmospheric boilers

Floor-standing non-volatile boilers of the Ferroli brand are presented in several modifications, among which the Pegasus models are popular. These models are distinguished from similar equipment by the following technical characteristics:

Floor-standing gas boilers Ferroli Pegasus have permission from Gosgortekhnadzor and a certificate of conformity that allows the installation of equipment for domestic and industrial purposes.




Advantages and disadvantages of Ferroli products

Ferroli has been cooperating with Russian suppliers and sellers of heating equipment for several decades. During this time, according to the feedback from buyers of equipment, it was easy to track all the advantages and disadvantages of gas boilers.
  1. Advantages - installation and installation is carried out quickly. A competent specialist will be able to adjust the ignition and gas flow, connect an external and room temperature sensor, and set the necessary work program. Start-up and regulation can subsequently be corrected automatically using automation. Another advantage is the economy and high efficiency of condensing boilers.
  2. Disadvantages - requires constant and proper care for hinged volatile boilers. Mandatory seasonal service. Often, if the gas valve is not properly adjusted, there is a significant excess fuel consumption. The automation board burns out at the slightest power surge (you need to connect a UPS).

The first start-up of the boiler must be carried out by a Ferroli representative who sells heating equipment. He will put the station under warranty and explain the operating conditions.

Boiler selection according to requirements

In order to select the most suitable boiler in accordance with the technical characteristics of the building and current regulations, regarding installation gas equipment attention should be paid to the following:
  1. Performance- the calculation is performed according to the formula 1 kW = 10 m² of heated area. If an indirect heating boiler is connected, a power reserve of 10-15% is required.
  2. Autonomy of work- Ferroli manufactures both fully automatic stations, in which even the temperature setting is controlled by a microprocessor, and conventional boilers with mechanically heating adjustments.
  3. Number of circuits- double-circuit units can heat water for hot water supply and heat carrier for the heating system. Boilers with one circuit are installed in rooms with a large heated area in cases where at the moment there is no need to receive hot water.
Ferroli gas boilers are good economical equipment, fully adapted to domestic conditions. The cost per station is lower than for the German or Czech model. Specifications and the possibilities are not inferior to those that boilers of well-known European brands have.

Construction and adjustment of Ferroli Domina gas boilers

The wall-mounted gas boiler Ferroli Domina F24 E with a copper heat exchanger for heating and hot water, with electronic ignition and flame control is a new high-performance device, with a closed combustion chamber (all the air entering the heater is taken from outside the room), running on gaseous fuel.

The Ferroli Domina F24 E boiler is designed to produce hot water for heating and hot water supply. The unit uses advanced technological systems such as, electronic regulation, control and safety devices.

A distinctive feature of the device is the built-in electronic device for ignition and combustion control, which provides fully automatic and safe work burners.

Fig.1. The device and elements of the boiler Ferroli Domina F24 E

5 - Sealed chamber, 7 - Gas inlet, 8 - Sanitary water supply, 9 - Sanitary water inlet, 10 - Heating system supply, 11 - Heating system return water inlet, 14 - Safety valve, 16 - Fan, 19 - Combustion chamber , 20 - Burner assembly, 21 - Main nozzle, 22 - Burner, 26 - Combustion chamber insulation, 27 - Copper heat exchanger for central heating and domestic hot water, 28 - Flue gas collector, 29 - Flue gas outlet, 32 - Heating system pump, 34- Temperature sensor heating systems, 36 - Automatic air vent, 42 - DHW temperature sensor, 43 - Air pressure sensor, 44 - Gas valve, 49 - Safety thermostat, 50 - Heating system limit thermostat, 56 - Expansion tank, 63 - Heating system temperature regulator, 73 - Freezing temperature thermostat, 74 - Filling cock, 81 - Ignition electrode, 82 - Flame control electrode, 84 - Primary gas valve regulator, 85 - Secondary gas valve regulator, 90 - Flue pressure tap 91 - Air pressure tap, 98 - On/Off/Restart switch, 114 - Water pressure sensor, 132 - Flue gas deflector, 136 - Flow meter, 145 - Pressure gauge, 157 - Domestic hot water temperature controller, 187 - Diaphragm flue gas outlets

Differential air pressure sensor

The air differential pressure sensor is a safety device, it allows the burner to be ignited only after checking the operation of the fan.

If the difference between the pressure of the outgoing combustion products and the incoming air is not equal to the minimum calibration value of the sensor, then the sensor contacts will remain open and the gas valve will not open.

In addition, the electrical circuit of the boiler is designed in such a way that if the pressure sensor contacts remain closed when the fan stops, the burner will not start.

The principle of operation of the gas boiler Ferroli Domina F24

The Ferroli Domina boiler is suitable for operation on two types of combustible gas: methane or propane (liquefied gas).

The gas mode for operation is selected when ordering or changed at the installation site. The boiler works with advanced systems: electronic control, safety and control equipment.

When the room thermostat calls for heat, the pump and burner are switched on. With the help of an electronic flame modulation system, the boiler output is gradually changed until the set flow temperature is reached.

If the power required in the heating system is lower than minimum power boiler, when the flow temperature exceeds the set value, the burner switches off and electronic system allows it to turn on only after 2 minutes.

When the temperature set on the room thermostat is reached, the burner switches off and the circulation pump continues to operate for another 5 minutes to ensure better heat distribution in the system.

If during the heating phase hot water is drawn for the domestic hot water system, the electrical heating circuit is automatically switched off and the domestic hot water circuit is switched on.

Throughout this stage, the circulation pump of the heating system stops, and the Ferroli Domina boiler supplies water at a set temperature.

The device maintains the water temperature of the water supply system constant, even when taking different quantities, by modulating the torch.

Every time the domestic hot water production ends, the heating pump starts for one second to prevent it from blocking, especially in summer.

Adjustment of Ferroli Domina boilers

Main burner pressure and flow adjustment

Wall-mounted gas boiler Ferroli Domina works on the principle of flame modulation. The system has two fixed pressures, minimum and maximum, which must be the same as indicated for each type of gas.

Adjusting the minimum pressure must be done first to ensure correct ignition of the burner. After that, the maximum pressure is adjusted. Any changes to the minimum pressure affect the maximum pressure value.

Minimum and maximum pressure adjustment with Honeywell V K4105G gas valve:

Connect a suitable pressure gauge to the pressure tap downstream of the gas valve.

Disconnect pressure compensator.

Remove protective cap.

Set the potentiometer (on the main panel) to the minimum value (counterclockwise).

Operate the Ferroli Domina boiler in heating mode.

Adjust the minimum pressure by turning the screw clockwise until the desired value is obtained.

Set the potentiometer (on the main panel) to the maximum value (clockwise).

Adjust the maximum pressure by turning the screw counterclockwise until the desired value is obtained.

Connect pressure compensator.

Replace the protective cap.

Adjustment maximum power heating systems:

This adjustment is carried out only on the electronic board with the adjusting screw РЗ, starting from the system temperature below the maximum of the regulating thermostat (system temperature 50-60°C).

Connect a special pressure gauge to the pressure tap located in front of the gas valve; turn the temperature control screw to the maximum value, then set the desired pressure value.

At the end of this operation, turn on and off the Ferroli Domina boiler 2-3 times using the thermostat. At each start, check that the pressure corresponds to the set value and that the burner ignites correctly.

If necessary, make additional adjustments until the pressure stabilizes at the set value.

When igniting the burner, to control the set pressure, set the control thermostat knob to the maximum value, otherwise errors will occur.

Adjusting the temperature of the heating system and the room:

The water temperature of the heating system is regulated by turning the corresponding knob.

Turning the knob clockwise increases the temperature of the heating water, and turning it counterclockwise decreases it.

The temperature can vary from a minimum of 35°C to a maximum of 85°C. We recommend not to operate the Ferroli Domina boiler at a temperature lower than 45°.

The room temperature is controlled by setting the room thermostat knob to the desired value.

The thermostat automatically controls the boiler, temporarily cutting off the power line, depending on the heat demand of the room.

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OPERATION AND REPAIR OF BOILERS

Proterm Panther