Famous Slovak Firm Protherm (Protherm) has won confidence due to the high quality and reliability of the equipment produced. Attentive examination of customers' needs, trends in demand for various models of manufactured devices allowed the company to win leading positions in the market.

The company produces tens: outdoor performance and wall, and, with open and closed combustion chambers. Two-integted wall-mounted gas boilers were particularly popularity, which is dedicated to this article.

Description of the two-kilt boiler

Boilers, which have the function of heating the waterproof water, are called dual-circuit, because water is heated for two systems - heating circuit and hot water systems (DHW).

The DHW system in such boilers, if necessary, can function separately from the heating system. Such a regime is required to supply the house with hot water in the summer.

Wall double-circuit models are presented in a wide range of capacity - from 11 to 30 kV, which allows the buyer to choose the optimal version depending on the heated area.

Wall-mounted boilers provide a mechanism for freeing the combustion chamber from exhaust gases. This is done in two ways. The first is a forced removal of residual gases with a fan, such a combustion chamber is called closed. The second option - gases is given the opportunity to independently leave the room through the chimney, this camera is open.

All products of the company protem are equipped with the most modern automatic control, management and protection systems.

Distinctive features

Having installed a double-circuit gas boiler in your home, you will become the owner of a real home boiler room, which, in addition to full-time functions, will provide your household and hot water.

Below are the main distinguishing features of the ruler of the gas boilers. Proterm:

• efficiency, ease of operation;
• a large selection of models - by price, power, functionality, protection capabilities;
• the price-quality ratio is one of the best among the manufacturers of similar techniques;
• high efficiency (more than 90%);
• models are produced with a built-in boiler.

Important! Gas boilers are adapted for Russian conditions - they can function normally even under reduced gas pressure or water in highways.

Gas boilers produced by a protema during operation you will not disappoint and justify the most bold expectations.

Flower row of boilers

The range of heating boilers offered by the firm is varied and varied. The product catalog includes:

1. electric boilers;
2. solid fuel working on firewood and coal;
3. universal units that can work on gas and diesel engineering;
4. industrial boilers of high power;

The nomenclature of gas boilers with a protier includes two types: and. The company produces gas boilers in the range from small wall-mounted devices weighing 30 kg to heavy floor units, the most famous among which is a two-round gas boiler firm with a protier model Bear 30 KLZ weighing 155 kg.

As for the two-circuit wall apparatuses, 5 episodes are produced:

• Panther.
• Jaguar.
• Lynx (Rys).
• Cheetah (Gepard).
• Tiger (TIGR).

Each series includes several models, characterized by capacity, performance, price and some other parameters. In particular, the devices of the Panther series, the cheetah and tiger include models of both closed and open combustion chambers. A typical representative is a two-konturic gas boiler of the company Proterm Panther 25 KTV with a capacity of 25kW, which has a device forced removal of exhaust gases from a closed chamber.

Specifications

The main technical characteristics, for the convenience of comparison and accelerate the search for the necessary information, are reduced to Table 1.

Model	Panther	Jaguar	Cheetah	Tiger	Lynx
Characteristic	25 Kov, 25 KTV, 30 KTV	11 JTV, 24 JTV	11 MOV, 11MTV, 23 MOV, 23 MTV	12 Koz, 12 KTZ, 24 Koz, 24 KTZ	18/25 MKV 25/30 MKV
The combustion chamber	T-closed O-open	closed	T-closed O-open	T-closed O-open	closed
Temperature s, ° C	35-85	30-85	30-83	45-85	30-85
DHW temperature, ° C	38-60	30-64	38-65	40-60	30-64
Expansion tank s, l	7,0	7,0	5,0	8,0	8,0
Expansion tank gvs, l	–	–	–	2,0	5,0
DHW performance, l / min	up to 17.0.	up to 10.7	up to 11.	up to 12.6	up to 14,2
Natural gas consumption kg / hour	2,84 – 3,44	–	2,73	1,41 – 2,84	–
Consumption of liquefied gas, kg / hour	2,08 – 3,21	–	1,9	0,91 – 2,08	–
CONSTRUCTION OF NATURAL GAS GVS CUM / HA	–	2,73	–	–	1,39-3,08
Consumption of liquefied gas GAV, kg / hour	–	1,02	–	–	1,02-2,26
Natural gas consumption s cubic meters / hour	–	1,39 2,73	–	–	–
Consumption of liquefied gas OV, kg / hour	–	0,55 1,02	–	–	–
Cumulative tank	–	–	–	45	–
Weight, kg	34 – 41	29 – 30	31 – 34	70 – 71	35 – 36
Dimensions, mm.	800x338 * 440.	700x280x410	740x310x410	900x410x570.	700x280x390.
Price, thousand rubles.	45 – 53	27 – 32	34 – 39	50 – 130	54 – 56

Reduction: OV - heating water, DHW - hot water supply.

Deciphering code in the name of the model:

1. the double digit number corresponds to the rated power consumption in kW;
2. the first letter - in combination with the third, denotes the model;
3. the second letter - the type of combustion chamber: O - open, K, T - closed;
4. the third letter is the type of the boiler: V, Z -Dvukhonctural, O is one-connecting.

In addition to the parameters specified in the table, all wall double-circuit boilers have another characteristics. In particular, they have the following protection systems:

• safety valve for resetting the coolant when improving pressure in the system;
• protection of the circulating pump from the jam;
• protection of water pipes from moving;
• gas control - stops supplying gas to the burner if the flame suddenly goes out;
• the air vent - getting rid of the heating system from the air;
• protection of the boiler from overheating using a thermostat.

The electronic gas boilers control system performs the following functions:

1. control using a microprocessor;
2. monitoring device status;
3. regulation of air temperature in the premises;
4. displays the current temperature and fault codes.

Maintenance service center

Every year, better before the first inclusion after the summer break, it is recommended to invite a specialist certified service organization for inspection and checking the boiler. With a prophylactic examination, the state of the gas burner, the power setting, cleaning the injectors of the burner and heat exchangers is performed. Especially important part of the inspection - checking the operation of the emergency thermostat and thermostat of the combustion chamber.

Attention! When cleaning the nozzles of the gas burner in no case cannot be allowed to change their internal diameter!

Boiler service user

Cleaning the facility of the unit without removing the protective casing. Must be carried out after disconnecting the device from the network. Power supply is allowed only after complete drying.

Water pressure in the heating circuit must be checked weekly. If necessary, conduct feedback after cooling the unit below 400 ° C.

It is necessary regularly, at least once every three months, control the tightness of the combustion system connections, the purity of the filter and the mud and remove the dirt if necessary.

In the case of a gas leak detection, the device must be disconnected immediately, close the gas valve and call a service specialist. It is not recommended to repair the aggregate itself. For example, the instruction manual for a wall-mounted two-round gas boiler Cheetah production of the company Proterm does not recommend faults to try to eliminate themselves in order not to lose the guarantees of the company.

When buying any heating equipment, the user receives instructions. It describes all moments that concern not only the installation of the unit, but also its operation. Copper Proterm Skat 9 kW is no exception. Of course, for some reason the instruction was lost, then start the heating of the house will not work. After all, the electric boiler needs to be adjusted correctly. There are certain rules for the installation and operation of the electrical unit. They must be observed. Otherwise, the equipment will work incorrectly.

Advantage of electric boiler ruber scat

The aggregate is a proterm skat has a number of advantages. Such heating equipment has become a good alternative to gas heating devices. The popularity of boilers with a protier skat increases every year. After all, such aggregates are ideal for heating houses that are not supplied to the main gas pipeline. Electrical boilers of this modification are simply indispensable for country cottages with periodic or seasonal accommodation.

Among the advantages of such aggregates, you need to highlight the following:

It is worth noting that electric boilers with a proterm skat during their existence have proven themselves as economical and safe heating devices.

Installation features

Cotelers with a proterm scat 9 kW are supplied with all the necessary fasteners and elements. Besides the kit includes an instruction where the process of connecting and adjusting the unit is described.. It is worth noting that models that differ in power have a completely identical principle of installation, operation, as well as settings.

Before assessing the heating equipment, all work with electrical distribution services must be coordinated.

Electric cloths with a thickness of 9 kW with a capacity of 9 kW can be connected to 220V power grid. The installation of such heating equipment is carried out using the mounting plate. Such an aggregate has no certain restrictions on the choice of installation location. Of course, there are some requirements - you need free access for service, maintenance, settings and repair of heating equipment.

How to install

Electric concrete protema skat connects to the pipe system using nozzles. The connection of the heating device is carried out so that the coolant can in the event of failures in the process of operation can be freely drained without affecting the entire system. Additional valves make it possible to fill the coolant system and drain it. Also, to exclude in the cold period freezing of water in seasonal homes, specialists are recommended until temperatures reduce the heat carrier completely from the system.

The flow boiler is connected to the power grid through the power line, which was detached separately. A network cable to the terminals are connected in the lower corner of the case. You must thoroughly tighten all the screws on the connectors. 9 kW cap boiler can be connected to a single-phase network.

How to use the boiler ruby \u200b\u200bscat

The process of operation of an electrocotel with a protier of the skate does not cause special difficulties. After all, similar heating equipment equipped with control and regulation systems. In order for the device to start working, you need to do only a few simple actions:

1. Enable the unit in the power grid.
2. In the control panel of the heating equipment, select the desired temperature mode.
3. Adjust the power of the unit.
4. Make more accurate temperature setting.
5. If necessary, change the pressure level in the system.

After the manipulations have done, you must click the "Start" button. That's all the boiler is a proterm skat ready to work. During the first few days of operation, it is necessary to monitor the operation of the unit and, if necessary, to adjust the temperature regime. This will allow you to identify some problems in the work of the unit caused by the presence in the system of air traffic jams.

Electric boiler Proterm Skat for heating is the most common model in Russia among all manufacturers presented in the domestic market. Good quality of the European assembly and reliability of components, many positive feedback on Protherm electrocotels and reasonable prices contributed to their popularity among buyers, both in Russia and abroad.

To understand the advantages and disadvantages of Slovak heating equipment, it is necessary to disassemble the technical characteristics and a device of wall-mounted electric boilers with a spear of a series of skate, the model range, presented on the market, and features of the connection. Consider also problems and malfunctions that may occur during the operation of the machine, errors and methods of their elimination.

Model range of electric boilers Proterm Skat, type K (Kr)

To date, the Slovak company "Protherm" is represented in the Russian market not only by their boilers, but also by eight models of electrocotes of the type of skate k (kr), characterized by power consumed and connected to the electrical network. Country producer water heaters - Slovakia.

The company produces only one-connecting devices that can drop a private house with a total area of \u200b\u200b30 to 280 m2. Among them are distinguished as single-phase - with the possibility of connecting to the power grid 220 V and three-phase - 380 volts.

Electric boiler protema: photo

The main differences between the electrocotes of this model range is their rated power, which can be 6 or 9 kW, 12, 14 or 18 kW, 24 and 28 kW. Depending on the selected model, these are aggregates:

- low power: scat 6K and 9k;
- average power: Skat 12K, 14K and 18K;
- high power: scat 21k, 24k and 28k.

Managing the work of the electric unit "Proterem" is carried out using special buttons made in the form of multidirectional arrows, on the front panel of the heating machine.

They can set the necessary water temperature in the heating system, as well as in the remote boiler of indirect heating, which is bought, if necessary, obtaining hot water for economic needs. In addition, the button " Mode / OK.»You can enable (set up) the desired mode of operation of the electrocotel:

- Traditional mode for heating (25-85 ° C);
- mode "Warm floor" (30-45 ° C);
- The preparation of hot water in an indirect heating boiler (35-70 ° C).

The multifunctional LCD display informs about the temperature in the heating circuit and the boiler, as well as problems and errors in the boiler in the event of any malfunctions. Above the display, light bulbs are located depending on the specified mode of operation of the device, changes in power consumed and insufficient water pressure in the system.

Default, all Protherm electric boilers are 3-phase, however, small power models 6 and 9 kW ("Skat 6K" and "Skat 9K") can be connected to a single-phase network of 220 V. Main power devices, calculated for heating Houses up to 180 m2, and high-power boilers - more than 20 kW can be installed in private homes or other rooms with a total area of \u200b\u200bup to 280-300 m2. We look at the table.

Proterm Skat: cable cross section, energy consumption

Features of the device of the electric boiler rubbed

The heating apparatus consists of several main elements necessary for its full operation.

1. Copper heat exchanger of a cylindrical form for heating the coolant.
2. Block tens-s from copper of different power and quantity with multi-step switching.
3. An expansion tank of 7 liters to compensate for thermal expansion in the heating system.
4. Hydraulic group consisting of:

- three-speed circulation pump;
- Safety valve for 3 bars;
- Automatic air vent.

In addition, the NTS temperature sensor is installed on the heating circuit line, as well as an emergency sensor that protects the unit from overheating. There is a system for the protection of the device from freezing. and from blocking the circulation pump.

Electric lamps are mounted in the heat exchanger of the boiler with a rubber, top and bottom. Depending on the model, the amount of Tan can be different. For example, in the apparatus of Skat 6K, 9k, 12k and 14k, two Blocks of the Tannes are installed, in the scat 18K and 21k - three tan, in 24k and 28k - four. For each model, the blocks of TEN-Es have different power.

I suggest detail to disassemble the internal device of the hinged electric boiler "Proterm Skat" according to the manual scheme:

Internal device "Protherm Skat" according to the instructions

1 - heating unit;
2 - a crane for air reset;
3 - heat exchanger;
4 - pressure sensor;
5 - Safety valve;
6 - adjustment of the circulation pump;
7 - LED state of the pump;
8 - grounding on the "return";
9 - grounding on the body of the water heater;
10 - pump for circulation;
11 - Connecting an electrical circuit;
12 - contactor;
13 - e-board;
14 - the temperature sensor NTS;
15 - emergency temperature sensor-limiter.

Electrocotel connection: Water circuit, cable

Connecting electric boiler Protherm

1. Like most modern, wall heating machines, all connectors for connecting the boiler are at the bottom of the housing. This is done to save space in the room in which the electrocotel is installed.

2. The heating water circuit is connected using two threaded fittings with a diameter of 3/4 ". On the left there is a reverse line (the inlet of the coolant into the boiler), on the right - direct (output).

3. Nearby are: overflow for safety valve, drain valve, as well as connectors for connecting an electrical cable of different sections. It is possible to monitor the pressure in the heating system according to the testimony of the pressure gauge, which is also located at the bottom of the body of the apparatus.

Electric concurrents protema scat: specifications, sizes

Water boilers have a rather compact dimension of 410 x 740 x 310 mm, which allows them to harmoniously fit into the interior even a very small kitchen or boiler room. The remaining technical specifications are looking at the table.

TECHNICAL CHARACTERISTICS OF ELECTRICOTES WATER

Errors and faults of the electric boiler Protere: Methods for troubleshooting

1. Error code F00, F10, F13, F19.

These codes tell us about the NTS temperature sensor fault. It may be necessary to replace it or replace the electronic board. But first check the cable connections on the performance.

2. F20 error.

Faulty temperature sensor or thermal fuse faulty. Try to turn them in turn. If the boiler turns off again, replace the faulty item.

3. Error F22.

This error testifies to the "dry" start of the electric motor. Add water pressure in the system, it must be at least 0.6 bar. The presence of air in pipes and radiators of heating is possible.

4. Error code F41 and F55. The relay or contactor has occurred. Check these parts for defects.

5. F63 error. No connection with EEPROM. Reset settings to factory.

6. Errors F73 and F74.

Errors under these codes sign about problems with water pressure sensor. You need to check the contacts or replace the sensor itself.

7. F85 and F86 errors. Freezing of water in the electrocotel itself (F85) or in an indirect heating boiler (F86).

Electrical circuit Connecting boilers Proterm Skat

Electroscheme Connecting boiler Proterm Skat 6, 9, 12, 14K

Benefits of electric boilers:

- quality assembly and reliability in operation;
- a wide range of different power;
- modern security system;
- high efficiency of 99.5%;
- the ability to connect additional options and equipment;
- Good customer and specialists' reviews.

Disadvantages of electro-block brand ruby:

- lack of room in the configuration of the device;
- no models with a built-in boiler for heating the waterproof water;
- It is not allowed to use non-freezing fluid as a coolant;
- Price from 35,000 rubles.

We examined in detail electric boilers Proterm Skat for heating, all model range and specifications. During the instruction manual, the internal device, revealed the main advantages and disadvantages of these devices. And also stopped their attention on possible errors in the event of faults and some ways to eliminate them with their own hands. We watch the video.

For heating and hot water supply apartments and small private houses with one bathroom, two-circuit gas boilers are usually used.

In large homes with several sanitary premises for heating, one-circuit gas boilers with a storage boiler for cooking hot water are more often used. Such a system provides more comfortable use of hot water in the house.

In the apartment of a new house with consumer heating, a two-round gas boiler Protherm Gepard 23 MTV is installed. Next, consider setting the power of the boiler on the example of this apartment.

Gas boilers of the Protherm GEPARD series are almost a complete analogue (simpler version) of the PROTHERM PANTHER (Panther) boilers. This article describes in detail the adjustment, adjusting the gas boilers of Protherm Gepard and Protherm Panther.

It should be noted that the company that produces the boilers of the Protherm series in another plant produces gas boilers of the famous trademark Vaillant. Vaillant gas boilers are located in a higher price category by applying better materials for the manufacture of heat exchangers. But according to the design, other applicable details, the settings of the service menu, the Vaillant brand Gas boilers are very similar to the PROTHERM boilers.

Described in this article, the principles of adjustment, power settings It is also suitable for gas boilers of many other brands and manufacturers.

Internal device of the two-integted gas boiler Protherm Gepard 23 MTV and Panther 25.30 KTV (Panther)

Reasons for tact (impulse work) boiler in heating mode

The instruction manual states that the useful thermal power of the PROTHERM GEPARD 23 MTV boiler is adjusted from the maximum 23.3 kw. to the minimum 8.5 kw. Factory power setting in heating mode installed on 15 kw.

The total area of \u200b\u200bthe apartment that the boiler is heated is 60 m 2.. Heating devices (radiators) of the total maximum thermal power 4 are installed for heating kw.

How to determine the maximum thermal power of the heating circuit in the house or apartment

How to determine the maximum thermal power of the heating circuit? On the sites of manufacturers and sellers of radiators we find the thermal power of each radiator installed in the house. In the catalogs of manufacturers of heat transfer of radiators, it is presented in 2 modes: 1) 90/70/20 degrees and 2) 75/65/20, you need to watch the heat transfer by the parameter "75-65 / 20". The sum of the capacities of all radiators connected to the boiler, and will be equal to the maximum thermal power of the heating circuit. For an apartment from our example, this value was equal to 4 kW.

The installers installed the boiler and included in the work, "forgetting" performing commissioning. The boiler was launched to work with the factory setting of maximum power in heating mode 15 kw.

Obviously, the heating system having the maximum capacity of only 4 kw., I will not be able to take the heat energy produced by a capacity of 15 kw. The power of the boiler burner within certain limits is regulated by automatic. But a huge difference in the magnitude of the boiler power and heating devices leads to the fact that the automation of the boiler is not capable without additional settings to bring the power of the boiler in line with the needs of the heating system.

The big difference between the power of the gas boiler and the power of the heating devices, among other minuses, leads to cyclicity of the boiler.

By the way, about other disadvantages of too powerful boiler. In the service manual of the PROTHERM GEPARD 23 MTV boiler, its efficiency is indicated in heating mode: 93.2% at maximum thermal power (23.3 kw.) And 79.4% when working with minimal power (8.5 kw.) Imagine how to decrease the efficiency, if this boiler is necessary to work with a power heating system 4 kw. Note that the two-round boiler for the year most of the time operates in heating mode, with minimal power. At least 1/4 part of the gas spent on heating will literally fly useless to the pipe. It will be the payment for the installation in the home of the too powerful heating equipment and DHW.

Tips on "How to increase the efficiency of the gas boiler" You can find if you read this article to the end.

Excessive cyclicity, impulsiveness of work or, as they speak in the people, "boiler tact" It manifests itself in the fact that the burner of the boiler after switching on is quickly disconnected by reaching the desired temperature in a straight pipe at the outlet of the boiler. But the radiators do not remain fragrances to this specified temperature - the water heated in the boiler simply does not have time to walk to heating devices. That is, the boiler produces thermal energy per unit of time more than the less powerful heating circuit is capable of take. Therefore, the water temperature at the outlet of the boiler is growing rapidly and it turns off earlier, without having to heat the radiators.

After a short time, the circulation pump submits to the heat exchanger, the remaining cool water from the reverse pipeline of the heating system and the burner is turned on again. Next, everything is repeated again.

The high-power heating system has an increased pipe diameter and the volume of radiators, which means there are lower hydraulic resistance. In large systems, water flows not exactly also, it flows faster, with a large flow rate (liters per second). During the rapid passage through the heat exchanger of the boiler, every liter of water has time to warm only degrees for 15-20 About S.. And to heat this liter to a given temperature, water in the heating system must pass through the heat exchanger several times.

In the heating systems of low power pipe thinner, smaller radiators, hydraulic resistance higher and water flows slower. If the same power heated slowly the current water, then the water that fell into the heat exchanger immediately, at a time, heats up degrees at 40-60 About S., immediately to the maximum temperature, and the boiler will turn off. And the water remaining in the system, not reaching the boiler, it remains cold, until the next cycle of tact. What happens in the boiler if its power is not adapted to the heating system.

The flame size (burner capacity) in the boiler controls the electronics by a complex algorithm where the time from the start of the burner, and the temperature value, and the rate of temperature change in the heating circuit, and the temperature difference in the direct and inverse tube are taken into account. I don't know all the subtleties of the regulation algorithm, but automatics, without additional service settings, does not provide the normal operation of the boiler at the power below the minimum, which is indicated in the technical specifications.

In a properly configured heating system, the temperature difference in direct and inverse pipe should be no more than 20 About S..

Tact reduces boiler service life and increases gas consumption

Anyone, not even being a mechanic and an electrician, knows that the most difficult mode of operation for equipment is the moment of startup, the inclusion of mechanical and electrical equipment. During the start period, there is the greatest wear, most often refuses to work. Increasing the number of launches as a result of cyclicity, the resource of work has the most expensive parts of the boiler - gas and three-way valves, the circulation pump, the exhaust gas fan.

For ignition at the time of launch, the maximum amount of gas is supplied to the burner. Part of the gas, until the appearance of the flame, literally flies into the pipe. Permanent "re-centering" burners further increases gas consumption and reduces the efficiency of the boiler.

Some cyclicity of the gas boiler is provided by the normal mode of its work. For example, temperature control indoors without a thermostat or using a two-position thermostat occurs due to periodic inclusion and shutdown of the boiler burner.

The task of regulating the power of the boiler is that To eliminate excess cyclicity - a tact caused by the lack of adaptation of the boiler settings to the heating system.

To eliminate boiler tact, it is necessary to equalize the boiler power and the heating circuit

You can do this in two ways:

1. Reduce the power of the boiler burner to the level in which the automation can provide a normal operation of the boiler with an attached heating system.
2. Increase the maximum power of the heating circuit by installing additional radiators or replacing existing on more powerful.

You can immediately apply both methods. Reduce the difference between the boiler capacity and the heating circuit by replacing and installing more powerful radiators. And then, the remaining difference is compensated by the boiler power adjustment.

The second way is more costly, but sometimes it has to choose. The fact is that in order to save the builders, radiators are often installed in the house without a reserve of thermal power. As a result, to maintain the required temperature in the premises, in frosts you have to feed the heating water of the maximum temperature in the radiators, more than 75 About S.. At such a temperature on radiators, there is a decomposition (combustion) of organic dust particles and an unpleasant smell appears in the rooms. In addition, the high temperature of the coolant reduces the service life of polymer pipes and other parts of the heating system from plastic and rubber.

Sometimes, the power of radiators is simply not enough to maintain the necessary thermal regime even at the maximum temperature of the heating water. Before engaged in adjusting the boiler power, I recommend to determine the need, and, if necessary, increase the power of radiators by 30 - 100%, at least in the coldest rooms.

Up to the top - the standard temperature of the radiator operation in systems with plastic pipes. At the bottom - the maximum radiator temperatures for comfortable soft heat. To switch from a standard mode to a soft heat (size) of the radiator, it is necessary to increase by about 2 times.

The main advantage of low-temperature heating is the possibility of using modern technologies. We are talking about condensation boilers, solar collectors and thermal pumps. They require the system a low temperature of the heating water.

In case of replacing radiators, it is necessary to take into account that the expansion tank embedded in the boiler is designed for the volume of water in the heating system not more than 50 liters at the GEPard boiler, and 70 liters at Panther. If the amount of water as a result of the installation of new radiators will be greater, then it is necessary to install an external expansion tank.

The external expansion tank is connected to the reverse line of the heating system closer to the boiler. Built-in expansion tank, in this case, it is better to derive from action.

Buy radiators in your city

Heating radiators

How to adjust the power of the gas boiler burner

The useful thermal power of the gas boiler can be reduced by reducing the gas supply to the burner. Do this by changing the settings of the gas valve.

Honeywell Gas Valve ProTherm Gepard (Panther) - work scheme.
EVS1 - Safety electric valve; EVS2. - electric drive control valve; Vm - The stepping motor controls through the gas flow control valve.

In modern boilers "Protherm Gepard" and "Protherm Panther". Basic settings honeywell gas valve Change with a stepper electric motor. The stepping motor control is made from the boiler control panel through the service menu.

It should be noted that the manufacturer in some versions of Protherm Gepard gas boilers (Panther), Vaillant, instead of the Honeywell gas valve, sets the SIT 845 SIGMA gas valve. Settings for the maximum and minimum burner power This valve is made by rotating adjusting screws located on the valve body. About the features of the SIT gas valve adjustment read below, on page 2.

Electromechanical devices of the boiler (electroclaps, stepper and conventional electric motors, sensors) are controlled by the microprocessor of the electronic control board in accordance with the laid program. Settings of the boiler operation program can be changed on the control panel using the two menu - the publicly accessible and hidden service menu.

Access to the Profherm Gepard boiler service (Cheetah)

PROTERM GEPARD boiler management is made from the control panel through a publicly available Custom menu. About how the owner manage the boiler is written in the operating manual.

On the control panel, you can call another, the hidden menu is a service, intended for specialists. The service menu becomes available on the display screen after entering the code.

Press and hold the Mode (1) button for about 7 seconds; View of the display will change - a digit appears 0 . - Use buttons + or — (2), enter the code, number 35 . - Confirm the code input by pressing the MODE button (1). After that, the display shows the 1st line of the menu in the form of the characters intermittent on the screen: d. 0..

- Use buttons + or — d. **.

- Press the "MODE" button to proceed from the menu indication of the menu line d. **»To the value of the parameter (the" \u003d "symbol and the parameter value) are alternately displayed on the display. - Change the values \u200b\u200bof the displayed parameters using the + or - (3) buttons on the boiler panel. - After 3 seconds after the change, the new values \u200b\u200bare automatically confirmed. To return the display in the original state, press the "MODE" button for 3 seconds. After 15 minutes of idleness, the display returns to the operating mode yourself.

Access to the service menu of the PROTHERM PANTHER boiler (Panther)

ProTherm Panther Boiler Control Panel has some differences from the Protherm Gepard boiler. The boiler control panel has a hidden service menu that becomes available when entering the code.

To access the Protherm Panther boiler service menu, you must: Press and hold the MODE button (1) for about 7 seconds; View of the display will change. - Via button left + or — (2) Enter the access code to the service menu - the number 35 in the left half of the display. - Confirm the code input by pressing the MODE button (1).

After that, the display shows the 1st line of the menu of characters d.00 With the menu bar number in the left half of the display, and the numeric value of the string parameter is in the right half of the display. - Via button left + or — (2), enter the number with the required menu string number: d. **.

To change the parameter value in the menu bar: - Change the values \u200b\u200bof the highlighted string parameters using buttons on the right + or — (3) on the boiler panel. - After 3 seconds after the change, the new values \u200b\u200bare automatically confirmed. To return the display in the original state, press the "MODE" button for 3 seconds. After 15 minutes of idleness, the display returns to the operating mode yourself.

Commands of the service menu and the procedure for setting the power of the Protherm Panther boiler (Panther) are similar to those shown for the Protherm Gepard boiler.

Description of some commands of the service menu

Line d.00- Maximum heat output (useful power) of the boiler in heating mode, kw. Range of possible parameter values \u200b\u200bfrom \u003d 9 to \u003d 23, factory setting \u003d 15 (for Protherm GEPARD).

Line d.01 - the time of the elevation of the circulation pump in heating mode, min., Select a value between 2 and 60 min.. Factory setting \u003d 5

Line d.02 - time delay after working in heating for anticyclation, min.. Protects from frequent on-shutting down the burner in heating mode (this function is not applicable in DHW mode). Select a value between 2 and 60 min.. Factory setting \u003d 20 minutes. This delay (called anticycling time) protects against a quick retaining in heating mode after stopping the burner at a given temperature or by the TA room thermostat command. It depends on the temperature setting of the coolant: - at 80 ° C.It is installed for 1 minute and is not regulated. - at 20. ° C.it can be configured from 1 to 60 minutes using the parameter d.02 In the service menu. At intermediate temperatures, between 20 ° C. and 80. ° C., The value of the delay varies in proportion to the range of 1 min. to the established B. d.02 parameter.

The dependence of the time of anticyclation from setting the value of the parameter in the string d.02 and heating temperatures

Line d.18. - mode of operation of the circulation pump; Options for working mode: \u003d 0 - with burner: The pump is working with the burner. \u003d 1 - continuously; RT thermostat: The pump is turned on by a room thermostat team. \u003d 2 - Constantly in winter: the pump is working all the time the boiler is in winter mode. Factory setting \u003d 1.

Line d.19 - speed of the circulation pump; Options of the operating mode: \u003d 0 - the burner works; The speed in the heating mode is automatically selected, the maximum - in the DHW mode, is minimal - if the burner is disabled \u003d 1 - min. Speed \u200b\u200bin heating mode, max. - In DHW mode \u003d 2 - automatically selected in heating mode, Max. - In DHW mode \u003d 3 - Max. Speed \u200b\u200bin heating and DHW mode. Factory setting \u003d 2. With each start of the burner in heating mode, the pump is turned on at a limited rate of at least 30 seconds. If the temperature difference between feed and the return reaches 20 OKThe pump switches to the maximum speed before turning off the burner (even if the temperature difference decreased). The same cycle occurs at the next ignition.

Line d.35. - shows the position of the 3-way valve, heating / DHW (read-only); \u003d 99 - hot water \u003d 0 - heating \u003d 40 - average position

Line d.36. - shows the display of hot water consumption measured by a duct sensor, l / min. When parsing hot water (read-only)

Line d.40 - shows on the display the water temperature at the outlet of the boiler, in the direct pipeline of the heating system, About S.. (only for reading)

Line d.41. - shows the temperature of the water temperature at the inlet to the boiler, in the return pipeline of the heating system, About S.. (only for reading)

Line d.44 - Monitoring the ionization current. This parameter informs that the ionization current is in the optimal range. The displayed value is not a real current value! Range of values: 0 - 10. In the range: \u003d 0 - 4 - the ionization current is sufficient - the flame is in stock; \u003d 4 - 8 - ionization current just below a sufficient level - there is a possibility of loss of flame; \u003d 8 - 10 - ionization current does not correspond to a sufficient level - there is no flame.

Line d.52. - setting the minimum power of the boiler burner by offset by the minimum position of the step electric motor of the Honeywell gas valve. Range of possible parameter values \u200b\u200bfrom \u003d 0 to \u003d 99. The smaller the value of the parameter, the weaker the intensity of the combustion of the gas.

Line d.53. - Setting the maximum power of the boiler burner by offset of the maximum position of the step electric motor of the Honeywell gas valve. The range of possible parameter values \u200b\u200bfrom \u003d 0 to \u003d -99 (negative values \u200b\u200bwith a minus sign). The smaller the value of the parameter, the weaker the intensity of the combustion of the gas.

Line d.62. - Lowering the heating temperature at night. Setting range 0 - 30 About S.. If you connect a timer to the boiler or even a manual switch, then you can switch the boiler in two modes: day or night. In the night mode, the heating temperature setting is reduced by the value specified in D.62. Those. The temperature of the heating water and the temperature in the house is higher, and at night below. You can configure on the contrary.

Line d.67 - Displays the time between the inclusions of the boiler. This parameter displays the cooling time in minutes before turning on the boiler. The countdown of minutes begins at the time of turning off the boiler due to the exceedment of the maximum installed operating temperature of the heating water on the boiler control panel and the room regulator is constantly closed. This parameter is of importance for the anticyclic function of the boiler when the cooling time before the next inclusion is calculated based on the tuned temperature of the boiler's heating water and the configured anti-cycling time interval in the D.0 string.

Line d.70 - Setting the position of the three-way valve. In this mode it is possible to establish the position of the three-way valve, regardless of the requirements for heating in a particular circuit. Three-way valve position: \u003d 0 - Valve is controlled based on standard requirements from the control system; \u003d 1 - three-way valve installed in the middle position for emptying the boiler (and heating, and DHW); \u003d 2 - the three-way valve is set to the heating position.

Line d.71 - Set the maximum temperature in the heating system. Select a value in the range from \u003d 45 to \u003d 80 ° C. Factory setting \u003d 75 ° C.

Line d.88 - Protection against hydrowarders in the wiring of cold water (for KTV and KOV boilers). The ability to change the parameter leads to the elimination of the reaction to the hydrodar, which are found in some cases in the cold water pipelines. For example, at the time of closing the automatic valve in a flip of toilet bowl (or washing, or dishwasher) in the pipe pipes, a pressure leap may occur (hydrate). The consequence of this may be the false response of the flow sensor (turbines) of tap water, which will lead to a short-term unwanted activation of the GVS of the boiler. Factory setting \u003d 0 - activation of the ignition process to heat the tap water with a flow rate of 1.5 l / min. Changing the parameter to value \u003d 1 - activation of the ignition process to heat the tap water with a flow rate of 3.7 l / min. In this case, the flow rate must be at least 2 seconds.

Line d.90 - Identification of the connected room sensor. Using this parameter, it is possible to make sure that the room regulator is properly connected, or the connection is working between the room regulator and the boiler. ATTENTION: This description refers only to regulators supporting EBUS-communication. In the event that a regular knob is connected with a switch, this function cannot be used. Display: \u003d 0 - Controller is not connected or not communicated with the boiler; \u003d 1 - The controller is connected and there is a communication between it and the boiler.

Line d.96. - Setting the boiler to the parameters installed at the factory. In case the setting leads to incorrect operation or failures, it is possible to restore the factory settings of the boiler. Setup: \u003d 0 - Replacing the settings from production will not be performed; \u003d 1 - Return to the factory settings will be returned. Note: When you enter the setting of this parameter, the "0" parameter is always displayed on the display.

How to eliminate boiler tact in heating

Adjusting the maximum power of the heating of the GEPARD or PANTHER boiler through the service menu

At the first stage In the service menu, as described above, we find a string d.0, press the "MODE" button and look at the display value of the boiler power parameter, kw. In our example, the factory setting \u003d 15 was visible. It is necessary to establish a new value of the boiler power, equal to the power attached to the boiler heating devices. This setting will work only in heating mode.

If the power of the heating system corresponds to the working range of the boiler

The maximum power of the heating system in the house can enter the operating range of the boiler power specified in the instructions. For example, the total maximum power of radiators in the house is equal to 11 kw. PROTERM GEPARD 23 MTV boiler operating capacity range is within 8.5 - 23.3 kw.

In the service menu, as described above, we find the D.0 string, press the "MODE" button and look at the display value of the boiler power parameter, kw. For example, the factory setting will be visible \u003d 15. Button "-" Set a new boiler power value \u003d 11.

I recommend to try the power of the boiler to set 20-30% less power of the heating circuit, for example, D.00 \u003d 9 kW. This power should be enough to compensate for thermal losses of the house, since the power of radiators is usually chosen with some reserve.

Increase anticyclation time

In the second stage, Increase the anticyclation time in the string d.02 Service menu.

Factory setting D.02 \u003d 20 minutes. According to the graph (see above), we determine that, for the temperature of the heating water specified on the display, 70 About S. , the re-launch of the burner is possible after 4 - 5 minutes, not earlier.

In line d.02 We establish a new value of anticycling time, for our example is the maximum possible, \u003d 60 minutes. The D.67 string displays the time in minutes before the next boiler turn on. Burges in the burner have become a duration of about 10 minutes. Twice more than with factory setting, which is still too often.

An increase in anticycling time leads to the fact that the burner is turned on later, at a lower temperature of the heating water. From the boiler in the contour of heating, heat flow is reduced.

In this way, picking through the service menu settings for the power of the boiler and the time of anticyclation, It seeks the duration of the cycle between the inclusions of the boiler burner was at least 15 minutes. That is, the boiler should turn on for one hour no more than four times.

I note that not all the brands of gas boilers have the ability to adjust the time of anticycling. In this case, you have to select only the boiler power settings.

On some brands of gas boilers, the rotational speed (performance) of the circulation pump is set manually, the switch on the pump. To reduce the boiler boiler, the pump speed is recommended to increase.

Setting the GEPARD or Panther gas boiler, below the minimum

In the third stage Setting up minimum boiler power, by magnitude, below indicated in the instructions.

This setting is needed not in all cases, but only if the first and second stages do not bring the desired result. As in our case, when at the first stage, the "-" button set the new value of the boiler \u003d 9 (the minimum possible setting corresponds to 8.5 kW.). Newly installed magnitude of the maximum power of the boiler heating (8.5 kw) It is still very different from the power of the heating devices (4 kw).

It should be noted that the setting of the boiler power according to the method described below is useful and in other cases, as it allows you to adjust the heating power of the boiler through the experiment in accordance with the real power of the heating circuit. Real power usually turns out to be less than the calculated one.

Before carrying out work on setting the minimum burner power, need:

• Fully open thermostatic and other valves on radiators, and a room thermostat is set to the maximum temperature. The thermostat that controls warm floors is adjusted to the maximum permissible temperature so as not to overlay the floors.
• In the custom menu of the boiler, set the maximum working temperature that the owners are set in the frost, adding another +5 ° S.. It is usually no less than 65 ° S.. If the owners do not remember it, or on the new boiler in the menu set the maximum temperature setting 75 ° S.. The burner of the boiler should automatically turn off at a temperature of 5 ° S. More, i.e. at 80. ° S..
• The heating circuit is cooled to the heating water temperature below 30 ° C.

Next, run the burner in heating mode, select the string in the service menu d.52., Press the "MODE" button and see the display of the position of the position of the step electric motor of the gas valve in the factory mode of minimum power.

After removing the front cover of the boiler visually observing the magnitude of the flame in the burner. In our example, a factory setting was highlighted on the display, the number \u003d 72, and the height of the flame in the burner was quite large.

Button "-" Set the new parameter value in the string d.52,for example \u003d 20. After 3 seconds after the change, when the new value is automatically confirmed, we observe a significant decrease in the height of the flame in the burner. This suggests that the useful power of the boiler with the specified setting will greatly decrease.

Next, observe the temperature growth in the direct pipeline of heating at the outlet of the boiler. Typically, the temperature rise stops, reaching some value, less than installed, for example 52 ° S. . The boiler works, and the temperature does not grow (or varies very, very slow). This means that the balance of power between the boiler and the heating system at this steady water temperature is reached. At this moment, you increase the parameter in the D.52 of the service menu, set a new value \u003d 30 - the temperature starts to grow again and again stops, for example, by 63 ° S.. Again, add the value of the parameter in the row d.52 \u003d 35 and so select the parameter until the temperature stops at the value, slightly more maximum, for example 77 ° S. . Thus, the balance sheet of the boiler and the heating circuit is achieved at the maximum operating temperature. The boiler power will be installed at the level, minimally necessary for working with an attached heating circuit. In this case, the cycling of the boiler will be minimal.

If the radiators are bad warm up in height, the temperature difference in the direct and inverse pipe at a maximum temperature of more than 15-20 °, then increase the pressure of the bypass valve. How to adjust the bypass valve below. The temperature of the water in direct and reverse pipeline can be seen on the display if you enter the service menu, the rows of D.40 and D.41.

In the case of adjusting the bypass valve, the gas valve setting in the D.52 string must be repeated.

In our example, the burner heats water to the maximum temperature 77 About S. With a minimum parameter value in the string d.52.equal \u003d 28 (the factory setting was \u003d 72). With a smaller value of the burner parameter, it could not heat the water to the specified temperature. And with the greater value of the burner heated water to 80 o C and the automation of the boiler turned off the burning.

It should be noted that the above method of adjusting the gas valve, which allows the experiment to balance the power of the boiler with the power of the heating circuit, is missing in the recommendations of the manufacturer of boilers. This is the idea of \u200b\u200bthe author of the article, successfully implemented when setting up autonomous heating systems with gas boilers.

Factory Gas Valve Calibration

Honeywell gas valve. 1 - fitting for measuring gas pressure at the exit to the burner; 2 - Fitting for measuring pressure at the entrance.

Manufacturer of boilers prescribes The minimum power calibration on the gas valve is as follows:

In a row D.1, the service menu set the parameter \u003d 9, which limits the boiler power at the minimum level specified in the instructions. Turn on the boiler to work in heating.

The pressure gauge tube is attached to the upper stacker at the outlet of the gas valve. Before connecting, it is necessary to unscrew the locking screw on the fitting to the join.

Call string d.52. Service menu. And changing buttons + and — The value of the string parameter d.52.Install at the gas valve outlet minimum pressure specified in the boiler instruction manual. For example, for the GEPARD 23 MTV boiler, the minimum pressure in front of the burner is 1.5 mbar or 15.5 mm.

This setting will ensure the operation of the boiler with the minimum power specified by the manufacturer - 8.5 kw. For an obvious question, what to do if the power of the heating contour is less attached to the boiler, the service instruction manual of the response boilers does not give.

In our example, after setting up and installing in the string d.52. Parameter \u003d 28, pressure measurement at the outlet of the gas valve before the burner showed the amount of 4 mm.

Readers in the comments ask the question: "Are such a significant reduction in gas pressure on the burner?" Is not dangerous for the boiler? " There are many different protection on boilers, but there is no protection against low gas pressure on the burner. From here we conclude that the low pressure in itself is not dangerous for the boiler. It is important to ensure stable ignition and sustainable gas burning, since there are appropriate protection on boilers.

A homemade master can roughly estimate whether the factory, gas valve settings, without resorting to the gas pressure measurement on the valve.

For this, in the line D.00 menu set parameter \u003d 9 and include boilers in the minimum power of heating. Record the testimony of the gas meter. After 15 minutes (1/4 hours), the meter readings are again recorded and the gas consumption is determined during this time. For example, the gas consumption was determined by the meter 0.289 m 3/15 min. This value is multiplied by 4 and receive gas consumption per 1 hour in the minimum power mode 1,156 m 3 / hour. Compare the resulting value with the data of the factory instruction. For example, the regulatory consumption of gas in the minimum power mode for the boiler Cheetah 23 MTV is 1.15 m 3 / hour. Gas consumption according to the meter testimony approximately corresponds to the factory norm. We conclude that the setting of the gas valve in the minimum power mode meets the requirements of the factory instruction. If not, the gas consumption is adjusted by changing the parameter in the D.52 string.

Similarly, according to gas consumption, you can estimate the setting of the gas valve at maximum power, switching the boiler to the DHW mode.

Power 23.3 kW. corresponds to the maximum pressure at the exit of the valve 85 mm.

U - shaped pressure gauge

A simple pressure gauge for measurements on the gas valve can be made from a transparent plastic tube, filling it with water and bent in the form of the letter U. One end of the tube is put on the valve fitting, and the other is left open. The ruler measure the difference in water levels in the branches of the tube. The measured distance and will be equal to pressure in the water column milieters - mm.

On the gas valve fitting, you can tight the tube inner diameter 8 mM.. For the tube of another diameter, you will have to select an adapter.

At the end of the measurements, do not forget to carefully wrap the screw on the measuring fitting and control its tightness.

Electric boilers are in demand among country housing owners, residential cottages and other non-gasified buildings. They are characterized by good functionality and allow it to heat any buildings that are not connected to gas highways. Their typical representative is an electric flocity protema - this is a device from a well-known manufacturer, distinguished by high quality assembly and decent characteristics.

We decided to dedicate this review by the electric boilers Protherm. In it we will tell:

• About model range;
• On the technical characteristics of the equipment;
• About popular models;
• About user reviews.

Equipment from such an eminent manufacturer really deserves a special mention, so we will tell about the boilers of Proterm everything that we know.

Features of electric shocks Proterm

Installing such an electric unit in its home ownership, you make an excellent choice. What to buy equipment from dubious brands, it is better to overpay and take a really worthwhile thing from the famous manufacturer - the performance of the entire system depends on the quality of the boiler. Moreover, Protherm has extensive experience in the production of electric heating equipment.

There is only one model range - skate.

Heated housing, not connected to gas highways, is always a big problem. The electric boilers existing on the market have either high cost, or do not boast of sufficient functionality. In this case, you always pay attention to small and neat gas models operating automatically and not cluttering space. ProTherm is ready to offer similar solutions to country housing owners, but operating from the electrical network.

Electric boilers Protherm is a unique solution with due accuracy. They are installed both in residential and non-residential buildings, regularly generating heat. They are represented by a single model near the Skat - to choose from buyers there are samples with heat power from 6 to 28 kW. Due to this, it can heat the rooms with an area of \u200b\u200bup to 280 kV. m.

What are good?

• Simple single-mounted performance - if you love simple and reliable equipment, you will definitely like the products of the specified brand;
• Wide power range - it is possible to choose a device suitable for power and at its price;
• High efficiency - efficiency, according to the manufacturer, is 99.5%. This means that almost all expended electricity turns into heat, without significant losses;
• Absolutely silent work - even if the equipment will stand in the bedroom, it will not prevent how to sleep;
• The presence of accurate temperature adjustment is to create a comfortable and cozy atmosphere in your home;
• The presence of universal models - they can work from single-phase and three-phase networks with a voltage of 220 or 380 V;
• Easy installation - you can cope with the installation independently, without resorting to the help of specialists.

Prices vary from 37900 to 47,000 rubles - this is the official price from the manufacturer as of April 2016. In some other stores, it may differ in a large or smaller side (more often in large). But it will not hurt you to buy an electric flock in the official online store - this is the most economical and reliable option.

The cost of equipment may seem high, but Protherm is always responsible for the quality of its products.

Specifications and appearance

Electricotel protema will fit into any interior due to its small size and wall placement.

As it should be good equipment from a well-known brand, electric boilers with a rubber concluded in neat small-sized enclosures. Thereby they will be able to fit into any interiorsEven the most exquisite. Body sizes - height 740 mm, depth - 310 mm, width - 410 mm (dimensions are identical for the entire model range of the skate). Inside, we will find everything you need for the work of the heating system:

• Circulation pump;
• Automatic air vent;
• Expansion tank on 7 liters.

You do not need to suffer with the installation of the strapping - it is enough to connect pipes and radiators, fill in the coolant system, after which you can start testing.

Models with a capacity of 6 kW and 9 kW can work from both single-phase and three-phase networks. More powerful are three-phase. The equipment is not afraid of voltage jumps and does not have overload on the network - there is a stepped power extension. The maximum strength of the current in the chain during the operation of the Tan is up to 50 A. The maximum pressure of the coolant in the system is 3 atm, the temperature is up to +85 degrees.

When connecting electric heating boilers, Protherm to the electrical network should be verified in accordance with the cross sections of the wires to the power consumed.

Scheme of the arrangement of electrical boilers of the rubber, as well as their dimensions.

Protherm electric boilers are endowed with convenient control panels. LED indicators and liquid crystal displays are located on them. Self-diagnostic systems are provided - error codes are displayed on embedded screens. To create a comfortable atmosphere, thermostators are used. Safety systems are represented by overheating sensor, freezing protection, pressure sensor, safety valve and circulating pump anti-blocking system.

Interesting functionality is the ability to connect external cumulative boilers, which are purchased separately.

Popular models

Electricotel Protherm Skat 9 Cr 13 is the most purchased. Used to heat the rooms up to 90 square meters. m.

As we have said, the electric boilers from Protherm are represented by the only line of the skate. Therefore, all the equipment has similar characteristics, differing electrical power and consumed power of current - all other data are identical, up to dimensions and weight. As for the most popular models, they are 9 kW designs, 12 kW and 21 kW.

In addition, the model row of the skate includes models with a capacity of 6 kW, 14 kW, 18 kW, 24 kW and 28 kW - the maximum heating area depends on the power (in the calculations it is necessary to take into account the heat loss and the possibility of connecting the boiler).

Instructions for use

By installing and configuring the device, it is necessary to follow the safety instructions and use protective equipment. Boilers are mounted in a dry place, away from flammable designs, emergency exits, air conditioners and other electrical appliances. Installation in places where water can get to the equipment. It is also not allowed to operate in freezing premises.

Mount the equipment to the durable walls taking into account weight. Heating pipes must be approached smoothly and without distortion. Connecting to the power grid is carried out with the help of a cross section of wires, directly to the electrical shield, through additional machines of the RCD. To protect against electrical shock, the equipment is subject to grounding. You also need to make sure that the supply voltage is established by the established standards. External components and modules are connected in accordance with the instructions.

Table for calculating the required cross section of wires and nominal fuses depending on the power

Ideally, certified specialists should be engaged, but if you follow the instructions and follow the safety regulations, nothing terrible will happen.

During the operation of the equipment, it is necessary to control the temperature in the system and respond to possible errors. If the equipment is working normally, users remain only to set the desired temperature. The selection of the temperature of the heating circuit and the temperature in the outer cumulative boiler (ifned) is made using the buttons on the control panel - the control of parameters and errors is carried out with the help of the LCD.