DIY repair wipe the skat

After installation, the Protherm electric boiler worked for three days and stopped with an error F 20. I looked at the instructions - something with a thermostat. What to do is not said. Can you help with advice?

Service technician response:

The automatic overheating protection of the device has been triggered. You can remove the equipment from the emergency function on your own, although for electric boilers of these models, the unlocking actions are the work of the service department. Try to find the hidden emergency button on the thermostat and press it. If
this will not help - you will need boiler diagnostics.

The Protherm Skat 18 K electric boiler is set to the maximum night mode, but overnight the pressure drops from 1.8 bar to 0.6 - the boiler cannot turn on in the morning and writes error F22. Please help me figure it out.

The answer of the repairman of boiler units:

Low pressure in the heating circuit may be due to leaks in the heating system and a malfunction of the expansion tank in the unit. It is necessary to look at the tightness of the device components. There may be problems with the tank, or a coolant leak through the system.

The electric boiler Proterm Skat for 12 kW is often turned off, but does not write an error. The boiler is 3-phase, the voltage was measured: on two phases 6 each, and on the third - zero. Can this affect?

Service employee response:

In this case, there is clearly an electrical problem. If there are two phases, and the third is not, then this phenomenon should be eliminated as soon as possible, since the board may burn out. Possible reasons: a wire has come off in the bag, there are bad terminals in the machine, or the problem is in the starter.

Video (click to play).

Electric boiler Skat 6kW. Worked not a full season. There is a coolant in the system. Circuit breaker recently knocked out. When the machine is turned on, the boiler works for a while, then the machine knocks out again.

Service technician response:

Perhaps the heating elements are out of order. Diagnostics of the device is required.

Please tell me what could be the problem in the Skat 6 kw electric boiler: the boiler was launched 3 years ago to heat the bath and it worked perfectly (1-2 kw was enough), and this year the heating power dropped several times while the supply voltage was Normally and tena, when turned on, alternately heat the water to a certain temperature in the same way, i.e. they are all working, but in order to achieve the same temperature as in previous years, it is necessary to turn on the boiler at full power 6kw. The thermal performance of the bath has not changed.

The answer of the repairman of boiler units:

Probably, the block of heating elements is out of order. It is also necessary to check the dirt filter.

When installing and starting up the Skat 9 kv boiler, it gives an error f20. what to do in this case?

Service employee response:

Temperature cutout tripped.

Installed electric boiler Proterm for 14 kW. One of the fuses located on the switching power supply burned out, I can't figure out what the rating is, tell me, please!

Service technician response:

when a new boiler Proterm Skat-6 is started, and water is pumped into the system, an error F20 is issued (activation of the emergency thermostat), the water does not heat up and the pump does not turn on. Cook rectify the problem on his own, as there is no service center within a radius of 100 km.

The answer of the repairman of boiler units:

We recommend checking: air in the boiler heat exchanger; no duct through the apparatus; fuse on the control board.

Protherm skat 18 kW the signal lamp (exclamation mark) is on AND HDO, the green diode is on, the circulation pump is working, but the heating elements do not turn on.I tried to reset the error by pressing the button that is inside, on top. seems to have worked, but after 20 minutes the heating elements do not turn on again pressure 1.5 MPa temperature 35 degrees

Service employee response:

Your electric boiler is overheating. The reason is that the sump on the return line to the boiler is clogged with dirt (if one was installed during installation) or the contacts in the relay on the control board are sticking.

Electric boiler Protherm SKAT 6 - 24 K. It worked normally for several years. Now the following picture takes place: after turning on, neither the battery nor the pipes emanating from the boiler practically heat up. After a few minutes of operation, the temperature on the thermometer becomes> 90 degrees, and the boiler turns off. The pump (judging by the sound and vibration) is running.

Service technician response:

Most likely a problem with the circulation pump. But it is possible to determine for sure only when diagnosing the boiler.

Tell me please! We bought an electric boiler Proterm skat 28, installed everything as per the instructions, pressure 1.5 bar, turned it on at 380 volts. The boiler does not give any signs of life at all, the display does not shine, what could it be?

The answer of the repairman of boiler units:

The display does not light up: the fuses on the control board are blown, there is no communication between the control board and the display board (check the loop).

I have a Skat 12K apparatus. He worked for 6 years. At the moment, water is constantly dripping from the overflow tap coming from the emergency valve. The working pressure is from 0.9 to 2.5. It drips until the boiler stops completely after about 5-6 hours.

Did your familiar operators advise you to change the emergency valve and expansion tank inside the boiler? What is your advice on how to be? I also could not tighten the union nut of the flexible line.

Service employee response:

It is recommended to check the operating pressure in the expansion vessel of the electric boiler. If it is not possible to establish the required pressure in the tank, the expansion tank will need to be replaced.

Breakdown of heating equipment is always unpleasant, and breakdown of a heating boiler is doubly unpleasant. Even if you are the owner of such PROTHERM appliances, this is not a guarantee that the boiler will not break down.

Electric boiler breakdowns: the most common causes

• Repairs can be performed on the same day by contacting our Proterm service center. All you need to do is call us and tell us the approximate nature of the breakdown. The departure time of our specialist is from 1 hour.
• Lack of heating of the heating system (radiators). Most likely, the temperature sensor has broken or the boiler thermostat will require repair;
• Insufficient heating. This tells us about a malfunction (burned out) of one of the heating elements. It will need to be replaced. (Our masters always have spare parts for the Protem boiler);
• Pump breakdown is a problem in which the master must carry out a full diagnosis. A breakdown can appear both due to a broken contact in the power cord, and due to problems with the electrical circuit, the electronic control board, and other important components.
• Damage to the wiring;
• If the RCD knocks out when the boiler is turned on, a short circuit occurs - the problem is associated with a current leak inside the device, for example, when the PUMP or one of the heating elements is faulty.
• Failure of the control panel.

Our masters are well aware of all the weak points of the "SICK" of electric boilers, so diagnostics and repairs will not take much time. Over the entire period of work, we have accumulated extensive experience in the repair of boiler equipment of this brand.

Call and make a request for an electric boiler to wipe the skat. Service areas - Moscow and Moscow region.

A professionally performed repair of the Proterm boiler is a guarantee of its long service life and your peace of mind.

Modern models of boilers with control boards themselves determine and display the fault code on the display.

F.00 - Opening of the NTC sensor circuit at the OB terminal - the malfunction is indicated if the NTC sensor installed on the OB terminal is open - the message will be automatically deleted after reconnecting the NTC sensor - the NTC sensor circuit is opened when the voltage rises above 4.75 V

The rather popular brand Protherm has long taken a firm position as a reliable manufacturer of heating equipment in Russia. In the entire model range of boilers operating on electricity, one series is presented - Proterm Skat. Protherm electric boilers are produced in 8 modifications with power from 6 to 28 kW with the possibility of smooth power regulation. Designed for operation in closed heating systems with forced circulation of the heat carrier. Boilers are installed on the wall, and all connections are made at the bottom of the boiler. The efficiency is 99.5%, which is a very high indicator, even among electric boilers. The entire series of skat boilers is single-circuit, and hot water supply is realized by installing an indirect heating boiler.

Most of these disadvantages and advantages are inherent in most electric boilers.

• High efficiency
• Easy to install
• Unpretentious in maintenance
• Eco-friendly
• Doesn't require much space
• Silent operation

Sometimes electric boilers are credited with shortcomings that are no longer relevant or were obviously incorrect, consider some of them:

The boiler capacity is not enough to heat a house of more than 300 m 2

This statement is incorrect, due to the fact that Skat boilers can be connected in a cascade to increase the heated area, with a shortage of 28 kW.

Due to the fact that the heating of the heating medium is carried out with the help of a heating element, many believe that such a heating element will not last much, but you need to take into account the quality of the heating element itself and do not forget that it is not water that circulates in the system, but a heating medium.

In the event that a 28 kW boiler is not enough to heat the house, it is possible to install the Slopes in a cascade to increase the coverage of the heating area.
When connecting two boilers in a cascade, the second boiler is controlled by a room thermostat, which is connected to the first boiler.
This diagram will look like this:



Cascade connection of boilers Proterm Skat

The contacts of the room thermostat are connected to terminals 1 and 2 located on the K8 connector of the main boiler, and terminals 9 and 10 of the main boiler are connected to terminals 1 and 2 of the slave boiler.

Only boilers Proterm Skat 28 kW and Proterm Skat 24 kW can operate in cascade mode.

Depending on the boiler model, the number of power steps differs. The widest range of regulation is available for ramp boilers operating from a single-phase network and having a power of 6 and 9 kW.



Boiler power stages Protherm Skat

The warranty period for these boilers is 2 years.

Depending on the power of the boiler, a different number of heating elements are installed in them; in the R13 modifications, heating elements were installed in accordance with the following table:



The number of heating elements in boilers Proterm Skat

Boilers with a capacity of 6 kW and 9 kW are capable of operating from a 220V and 380V network, boilers of higher power can only be connected to a three-phase 380 volt network.

When buying a boiler, in addition to it, the manufacturer offers various accessories to expand the functionality.

For Skat boilers, Proterm suggests using three types of room regulators:
Exabasic (article 6195), Exacontrol (article 0020159367) and Exacontrol 7 (article 0020170571).



Room thermostats for boilers Protherm Skat

The simplest Exabasic model has only a rotary switch for setting the temperature, the Exacontrol is already equipped with a display and has a mechanical control. Modification number 7 - has the function of weekly programming.

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Wiring diagram of the thermostat to the Protherm Skat boiler

To adjust the operation of the boiler, relative to the temperature outside the window, you must purchase an outdoor temperature sensor (article 0020040797).



Outside temperature sensor for boilers Protherm SKAT

In the retail network, its cost varies around 2,000 rubles (38 euros).

If you want to provide your home with hot water as well, then you need to purchase an indirect heating boiler. In order for the boiler to start working in conjunction with the boiler, you need to purchase a Fugas three-way valve kit (article 0020015570) for single-circuit boilers. A ready-made kit will cost 116 euros.



Connection kit for the fugas three-way valve to the Proterm Skat boiler Diagram of connecting an electric boiler Proterm Skat to an indirect heating boiler

In electric boilers Proterm skat, error f00 occurs when the NTC sensor is disconnected at the heating output.

On the boiler, the ramp error f22 arises due to a lack of water in the heating system.
To eliminate the error, it is necessary to add water to the heating system and turn on the boiler again.

The appearance of this error Ф55 on the display occurs due to insufficient amount of water.
It is necessary to disconnect the boiler from the power supply and contact a boiler specialist to clean it.
The error occurs when the relay or contactor sticks, which are on the board at the place where the heating elements are connected.

Instructions, certificates and passport for the boiler skat



Besides homemade electric boilers in my practice, it is necessary to connect factory-made boilers, both domestic and imported, such as boiler Protherm .

It is about this brand of electric boilers that I want to tell you.

The price category for such electric boilers is rather high, about 20 thousand rubles. depending on the capacity, there are plus or minus a few thousand.

This is what impression he made on me in practice electric boiler Protherm Skat 14K .



Boilers are made in Slovakia, in the city of Skalica.

It is made of very high quality and soundly, all parts are mounted very compactly and at the same time are available for service.

It can be seen that manufacturers have puzzled a lot over the internal structure of the electric boiler.

All electrical wires and connections to them are also of very high quality, and practically all the internal contents of the electric boiler from manufacturers of leading companies in the world are at the highest quality level.

Even to be honest, it is pleasant to look at, a professional can immediately determine the high reliability in the operation of such a boiler, even by the component parts.

So, on the front, front of the boiler there is a digital panel with control buttons and indication:

The interface itself is very clear and it is very easy to understand the tinctures.



Let's look inside the electric boiler by removing the front front cover.

On the right, most of the space is occupied by a metal tank with installed two three-phase heating elements of 7 kW each.

In each three-phase there are three single-phase heating elements, each of 2.3 kW.

In total, 6 single-phase heating elements are used in the boiler.

Each single-phase heating element in the electronic control unit has its own intermediate relay, which in turn is controlled by an electronic control circuit.

It turns out like this: "brains" (electronic control circuit) commands an intermediate relay, and that, in turn, supplies voltage to the heating element.

That is, the automation can turn on any number of heating elements from 1 to 6.

On the left in the center are the “brains” of the electric boiler - an ECU (electronic control unit), an electronic board with intermediate relays installed on it, a pulse power supply, protective fuses, connectors and other electronic parts.



Below the ECU, a din-rail is fixed and a number of terminal clamps are installed on it for connecting a power cable with a voltage of 380 / 220V, and a modular one is installed next to it. contactor from ABB.

There is a fuse between the modular contactor and the DIN rail terminals. It is practically invisible, in order to get to it, you need to flip the latch-cover.

If this fuse blows, then the boiler does not work completely and the digital display does not light up.



Further, at the very bottom, there is a heating circulation pump, which drives water through the system and creates the necessary pressure.

It is very convenient - no need to buy an electric pump separately, weld it into the heating system, make a system out of valves.

Everything here is already provided by the manufacturer and is located inside the case.

All pump connections are also made in the factory very high quality and reliable. This and

electrical connection - the pump is already fully connected from the factory to the automation circuit, as well as the connection of heating pipes.

The pump itself is also used by a well-known company.

It is very difficult to get close to the pump, only the top cover is accessible where the electrical wires are connected.

If you need access to the pump itself, you will have to tinker a little to get there.

But on the other hand, this is not so often needed during operation, so I think this is a small minus in the design.

The device also includes the metal body of the electric boiler itself and an automatic control panel with buttons and a digital display board fixed to a removable front cover.



Performs such a function as equithermal regulation of temperature in the heating system.

This is the regulation of the heating of the electric boiler depending on the temperature outside. Naturally, to perform this function, an outside air temperature sensor must be installed in the electric boiler circuit.

If you use the function of equithermal regulation, for example, when it is zero degrees outside, the water temperature in heating will not exceed 50 degrees Celsius.

Indeed, why "fry", heat at full capacity if it is warm outside?



At -10g. the electric boiler will only heat up to + 62-63 degrees no more. All this is selected in the settings according to special equithermal curves, you can read more in the boiler operating instructions.
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Further, the automation can maintain the set temperature in the range from +25 to +85 degrees - which number you set in the control panel, this temperature will be kept.

You can also adjust the power of the boiler.

Let's say a 14-kilowatt boiler has a power of 7 kW, then in any case the boiler will not turn on at full power and will be limited to a power of 7 kilowatts.

Automation allows the use of an electric boiler in conjunction with a load relay.



A special relay is installed and when the load exceeds the permissible (for example, the washing machine and the iron turned on at the same time), the relay gives a command and the electric boiler automatically reduces its power.

When the load returns to within acceptable limits - electric boiler will increase the power.

It is very important that the load is switched on smoothly and gradually.

Even if, for example, you put full power at once in the settings, then all the same, the heating elements will turn on gradually.

First, one heating element will turn on, then the second, then the third, etc. It is specially programmed so that there would be no sharp increase in the electric current in the network when turned on. boiler Protherm.

Switching off the heating element also occurs smoothly. Therefore, during the operation of the electric boiler, there are no abrupt abrupt changes in the electric current.



Protection of the boiler against water freezing (at less than + 8 ° C. Water temperature, the pump automatically starts to drive water)

Pump protection against seizure

Memorization of the set parameters in case of power outages

Safety valve with opening pressure of 3 bar

And this is what it looks like connected to the heating system boiler Protherm. The arrow indicator of water pressure in the heating system is also visible.

As an example, I am showing you a fully connected and installed heating system in the basement of a private house. electric boiler Protherm .

Faced the following problem:

We bought a 6 kW Skat Proterm boiler, installed by its own master - i.e. there is no guarantee for the boiler. at first everything worked fine, but now the boiler, at an exposed liquid temperature of 26 degrees, does not pick up the required temperature and works constantly at full power. The pressure is normal. The antifreeze was diluted according to the instructions (water was taken from the well), it does not display any errors. There are many questions:
1. What can happen to him and are there any checks for self-diagnosis of the boiler (tenov)?
2. Is it necessary to prepare the boiler for winter switching on? at the moment the boiler is used only in winter to maintain the minimum positive temperature.
3. How much will it cost for an equipment repair engineer to visit the site (Barybino microdistrict, Domodedovo)? Do you sell spare parts for boilers and how much will it cost, say, ten?
4. What do you suggest to take to solve this problem?

Is the temperature 26 ° C set in the heating system? yes (set by liquid temperature)
What is the heated area? 70sq. m., 1 boiler + 6 points (batteries)
Is the room thermostat connected? No
What is the flow / return temperature? no sensors, can't answer.
What is the voltage in the system? 220
Did you dilute the anti-freeze to the maximum? I can't say for sure yet, I will clarify. and what is better to fill if not antifreeze?

LED - indication of the current
HDO status (fault indication
switching relay). - is constantly lit red, is this normal?
For the first two months, the boiler worked perfectly - it brought up the liquid temperature to 26 and then switched on periodically to maintain the temperature.

The main question is: how did you determine that the boiler does not turn off and operates at full power?
The instantaneous power indicator always shows 6 kW?
What is the flow / return temperature during operation? Not by sensors, there are no such sensors. Just a thermometer or hand as a last resort. Is the supply temperature still increasing or not at all?

If HDO is not used (for two-tariff meters), the LED signals the connection to the mains voltage.

Try raising the temperature of the heating medium higher, for example 50 ° C. Drive for a while. How it will work and what the flow temperature will be at the same time.

> How did you determine that the boiler does not turn off and operates at full capacity?
on the indicator panel of the boiler shows 6 kW.
Today I drove a man who thinks a little. He looked at the boiler, said that it really consumes 1 kW (it is strange why the display shows 6 kW). The boiler was installed to heat the liquid up to 55 degrees. We checked the voltage on the heating elements - the voltage is supplied normally to all heating elements. There is no CURRENT on one of the heating elements at all (he said that this heating element is faulty), in the second heating element there is current, but only one section is working. Those. the conclusion he made - out of 6 sections, only one works on one heating element, respectively, 1 kW is consumed. change two heating elements. The question is what are the repair options and will it happen again? - what is the cause of the breakdown is not clear .. and repairs in the service center cost, as I understand, more than half of the boiler .. the boiler worked for one season.
> Is the supply temperature still increasing or not at all?
warm liquid by hand. the display shows 22 degrees does not rise further.

Boiler equipment "Protherm" today occupies a leading position in the consumer market. It is economical, easy to operate, has an affordable cost and versatility. Any technique can fail from time to time. In such a situation, highly qualified assistance of the master is required. Boilers are complex equipment. In this regard, their repair and maintenance should be trusted only to professionals. Repair of electric boilers protherm Skat may be required for various reasons. Often, units fail due to unfair operation. The user does not comply with the manufacturer's requirements. Also, damage can occur due to improper installation or factory defect.Malfunctions from time to time may appear due to lack of timely maintenance.

The service center professionals will repair the boiler of any degree of complexity using high-tech equipment. In the process of work, only original and high-quality spare parts are used. If necessary, specialists provide advisory support.

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The advantages of repairing electric boilers protherm Skat in our company

A large number of factors can lead to the fact that the boiler equipment stops working. It is important to notice the problem in a timely manner by calling the specialists. If you have difficulties with ignition, the water has stopped heating to the required temperature, there are leaks or the unit turns off spontaneously, then you cannot do without the help of professionals. These and many other malfunctions cannot be eliminated without special knowledge. The main advantages of cooperation with our company are as follows:

• Reliability. The repairs are carried out taking into account the technical requirements, which ensures long-term and efficient operation of the boiler.
• Quality assurance. The craftsmen use modern equipment and original spare parts.
• Acceptable prices. The company offers adequate prices for its services.
• High level of security. Competent installation of the unit, connecting electricity, setting up an automatic system is a guarantee of the safety of the unit.
• Short terms of work. Professionals value their client's time, so they immediately get to work, and all the necessary spare parts are always in stock.

If you want your life to be safe and comfortable. Then contact the specialists of our company. We know how to cope with a problem of any complexity.

The main advantages of boilers "Protherm" Skat

Protherm units are produced today in various modifications. Anyone can choose a worthy option for themselves. The boilers of this brand are easy to install, efficient, safe, and easy to operate. The main thing is to provide service in a timely manner. The indisputable advantage of the "Protherm" Skat boiler equipment is its long service life. This is ensured by the availability of modern parts and high build quality. The technical characteristics of the units are adapted to the operating conditions. By purchasing boiler equipment "Protherm" Skat, there is no doubt that it will serve for a long period of time. This is a reliable and time-tested boiler equipment, which has a large number of positive reviews. If a breakdown is detected, highly qualified specialists will eliminate them in a short time.

These units are produced in several modifications. Their power ranges from 6 to 28 kW. There are currently eight modifications. The equipment can operate from 220 V and 380 V. The units are distinguished by their high efficiency. The control is four-stage, there is a temperature indication. In the event of a breakdown, a malfunction code appears on the panel. The specialists of our company will conduct repair of electric boilers Proterm Skat at a high quality level as soon as possible.

Features of repair of boiler equipment "Protherm"

It is difficult to repair electrical boiler equipment on your own, since this work requires knowledge of a large amount of important information. If your unit has ceased to function properly, then it is advisable to seek qualified help from the service center. The experts of our company carry out preventive maintenance and repair of boiler equipment with high quality, promptly and at an affordable price. Troubleshooting work includes:

• Carrying out diagnostic measures in order to diagnose the cause of the breakdown.
• Troubleshooting through the use of high-tech equipment and tools.
• Commissioning activities.
• Conclusion of an agreement for the subsequent maintenance.

The masters of our company are trained in specialized academies. The knowledge of our experts helps to eliminate problems of varying degrees of complexity. In the process of repairing Protherm boiler equipment, special attention is paid to the following features:

• Analysis of the operation of the entire heating system.
• Assessment of the degree of tightness of plumbing fittings.
• Diagnostics of pipes for rusting and other undesirable phenomena.
• Determination of the pressure level.
• Checking the cleanliness and efficiency of the filters.
• Assessment of electrical system performance.
• Checking safety assemblies.

Repair carried out by professionals is a guarantee of efficient and trouble-free operation of the boiler equipment in the future. It is important to pay attention to every little detail. Even a minor malfunction can lead to an emergency in the future.

Protherm electric boiler review: model range

Electric boiler Proterm A ramp for heating is the most common model in Russia among all manufacturers on the domestic market. Good quality European assembly and reliability of components, many positive reviews for Protherm electric boilers 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 device of wall-mounted electric boilers Proterm of the Skat series, the model range on the market, and connection features. Let us also consider the problems and malfunctions that may arise during the operation of the device, errors and methods for their elimination.

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

Today the Slovak company "Protherm" is represented on the Russian market not only with its gas boilers, but also with eight models of electric boilers of the Skat K (KR) type, differing in power consumption and connection to the electrical network. Country of origin of water heaters - Slovakia.

The company produces only single-circuit devices capable of heating a private house with a total area of ​​30 to 280 m2. Among them, stand out as single-phase - with the ability to connect to a 220 V power grid, and three-phase - 380 Volts.

Electric boiler Proterm: photo

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

The operation of the Proterm electric boiler is controlled by means of special buttons made in the form of multidirectional arrows on the front panel of the heating device.

They can set the required water temperature in the heating system, as well as in a remote indirect heating boiler, which is purchased when it is necessary to obtain hot water for household needs. In addition, the button "Mode / Ok»You can turn on (set) the desired operating mode of the electric boiler:

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- traditional mode for heating (25-85 ° С);
- "warm floor" mode (30-45 ° С);
- hot water preparation mode in an indirect heating boiler (35-70 ° С).

The multifunctional LCD display informs about the temperature in the heating circuit and the boiler, as well as about problems and errors in the operation of the boiler in case of any malfunctions. Above the display there are lamps that light up depending on the set operating mode of the device, changes in power consumption and insufficient water pressure in the system.

By default, all Protherm electric boilers are 3-phase, however, low-power models 6 and 9 kW (Skat 6K and Skat 9K) can be connected to a single-phase 220 V.Medium-power devices are designed for heating a house with an area of ​​up to 180 m2, and high-power boilers - more than 20 kW can be installed in private houses or other premises with a total area of ​​up to 280-300 m2. We look at the table.

Proterm Skat: cable cross-section, energy consumption

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

1. Copper heat exchanger of cylindrical shape for heating the coolant.
2. Block of heating elements made of copper of different power and quantity with multistage switching.
3. Expansion tank 7 liters to compensate for thermal expansion in the heating system.
4. Hydraulic group consisting of:

- Grundfos three-speed circulation pump;
- safety valve for 3 Bars;
- automatic air vent.

In addition, an 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 protecting the device from freezing. and from blocking the circulation pump.

Electric heating elements are mounted in the Proterm boiler heat exchanger, top and bottom. Depending on the model, the number of heating elements may be different. For example, Skat 6K, 9K, 12K and 14K have two heating elements, Skat 18K and 21K have three heating elements, 24K and 28K have four. For each model, the heating elements blocks have different power.

I propose to disassemble in detail the internal structure of the hinged electric boiler "Proterm Skat" according to the instruction diagram:

Internal device "Protherm Skat" according to the instructions

Electric boiler connection: water circuit, cable

Connecting an electric boiler Protherm

2. The heating water circuit is connected using two 3/4 ″ threaded unions. On the left there is a return line (coolant inlet into the boiler), on the right - a straight line (outlet).

3. Nearby: an overflow for a safety valve, a drain valve, as well as connectors for connecting electric cables of different cross-sections. You can monitor the pressure in the heating system by reading the pressure gauge, which is also located in the lower part of the device body.

Electric boilers Proterm Skat: technical characteristics, dimensions

Proterm boilers have rather compact dimensions of 410 x 740 x 310 mm, which allows them to harmoniously fit into the interior of even a very small kitchen or boiler room. The rest of the technical characteristics are shown in the table.

Technical characteristics of electric boilers Proterm

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

These codes tell us about a malfunctioning NTS temperature sensor. You may need to replace it or replace the electronic board. But first, check the cable connections to see if they work.

Defective emergency temperature limiter or thermal fuse. Try to short-circuit them one by one. If the boiler shuts down again, replace the faulty element.

This error indicates a dry start of the electric boiler. Add water pressure in the system, it should be at least 0.6 bar. The presence of air in pipes and radiators is also possible.

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

5. Error F63. No communication with EEPROM. Reset the settings to factory defaults.

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

7. Errors F85 and F86. Water freezing in the electric boiler itself (F85) or in the indirect heating boiler (F86).

Wiring diagram for connecting boilers Proterm Skat

Wiring diagram for connecting the boiler Proterm Skat 6, 9, 12, 14K

- build quality and operational reliability;
- a wide range of different capacities;
- modern security system;
- high efficiency of 99.5%;
- the ability to connect additional options and equipment;
- good reviews from buyers and specialists.

Disadvantages of an electric boiler brand Proterm:

- lack of a room thermostat in the equipment of the device;
- there are no models with a built-in boiler for heating utility water;
- it is not allowed to use antifreeze liquid as a heat carrier;
- price from 35,000 rubles.

Video (click to play).

We examined in detail electric boilers Proterm Heating slope, the whole range and technical characteristics. Having disassembled the internal device according to the instructions for use, we revealed the main advantages and disadvantages of these devices. And also focused on possible errors in the event of malfunctions and some of the ways to fix them with your own hands. Watching the video.



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