Protherm electric boilers: device and operating features

Protherm electric boilers are quite popular with domestic consumers. They are an excellent alternative to central heating and are widely used in regions not connected to the main gas pipeline system. The production of devices is engaged in the eponymous concern from Slovenia, well known not only in Europe, but also in the world market of heating equipment.

Electric coppers of the Protherm company are presented by the compact units differing in high reliability and profitability. Due to the wide range of models and the choice of models of different capacities, boilers are successfully used both for small residential premises and for large public spaces, the area of ​​which can reach 280 square meters. mAll devices have very small dimensions, which allows them to be used in any interior without fear of excessively cluttering or visually reducing space. The height of the cases is only 74 cm, depth - 31 cm, and width - 41 cm. Such dimensions are typical for all models of electric boilers, which is convenient when replacing the unit with a new one or when planning the space before purchasing the device, when the model has not yet been decided .

The average weight of the boilers is 34 kg, which allows them to be installed in any premises without fear of excessive load on the walls. All boilers have a high efficiency, the maximum value of which reaches 99.5%, which indicates the complete elimination of heat loss and the direction of almost all thermal energy for space heating.

Structurally, electric Protherm boilers are a mechanical deviceconsisting of a heating element in the form of heating elements, an electronic control unit, a circulation pump, an expansion tank, an air vent and a din rail. The number of heating elements depends on the power of the model and the number of phases.So, low-power single-phase devices have one single-phase heating element, while powerful three-phase units are equipped with three single-phase heating elements. The control unit consists of an intermediate relay, fuses, terminal clips and power supply. The timely shutdown of the system in case of emergency situations or power surges in the network depends on the correct operation of this particular device.

The circulation pump pumps water into the system and maintains the working pressure in the circuits. Din-rail serves as the basis for the installation of modular equipment, which includes a relay, RCD and voltage regulator. The air vent works automatically and is needed to release accumulated air and steam, as well as to prevent an explosion of the case in case of emergency overheating and boiling water. The maximum values ​​of current with switched on heaters correspond to 50 A, the water pressure in the system is three atmospheres, the temperature of the heat carrier can reach 85 degrees.

All models are equipped with a thermostat to independently set the required temperature of the coolantand also to switch off and turn on the device at achievement of the set parameters. Each boiler is equipped with a device that performs equithermal temperature measurement, which can significantly reduce the consumption of electricity, depending on the outdoor temperature. So, on cold days, the device automatically raises the temperature of the coolant in the system, and on warm days it reduces it.

The safety system is represented by overheating and pressure sensors, as well as safety valves with pump anti-blocking function. All models are equipped with a RCD system that protects people and animals from electric shock if they touch a faulty device. To automatically reduce the power of the boiler when other electrical appliances are included in the home network, the security system is equipped with a special load control. This will prevent automatic power failure in the event of a network overload. Many models are equipped with frost protection, automatically turning on the pump when the temperature drops to 8 degrees, and heating elements - when it is lowered to three degrees.

The boiler is controlled using an LCD screen with a clear and user-friendly interface. The devices have one-and three-phase execution and are capable of operating from the mains with a voltage of 220 and 380 watts.

Protherm electric boilers are quite popular among owners of private houses and have a lot of positive feedback.

The growing consumer demand is due to a number of undeniable advantages of these reliable and efficient devices.

• Instant heating of the coolant and, as a result, fast heating of the room is quite comparable with the work of gas equipment.
• Simple installation of equipment allows you to install the boiler yourself without the use of special tools and the involvement of specialists. Electric boilers do not require the arrangement of the ventilation system and the construction of the chimney, which greatly simplifies installation.
• A very high efficiency indicator indicates a rational use of thermal energy and the elimination of heat losses.

• Absolute environmental safety is caused by the absence of the process of combustion of fuel and the release of harmful substances.
• Silent operation and full automation of the process.
• Efficiency. Due to the ability of the boiler to self-regulate power, the use of devices allows to significantly reduce energy consumption and significantly save on heating.
• The small size and aesthetic design make it possible to place the boiler in any room, without fear of spoiling the design.
• The ideal ratio of price and quality allows you to purchase a high-quality and durable heating device for little money.

The disadvantages of electric boilers include high power consumption in the winter period., lack of heating in case of emergency power outages, as well as the dependence of devices on the voltage in the network. The disadvantages include the high cost of especially powerful models, which can reach 120 thousand rubles. But the main drawback of electric boilers is the need to purchase additional equipment for organizing hot water supply. In this case, the gas bypass boiler is the preferred option, since the heating of water for hot water supply and heating takes place in one device, and the connection of additional devices is not required.

Protherm electric heating boilers are single-wall mounted and are represented by the Skat series. Devices are issued in eight options of power and intend for heating of inhabited and production spaces.In the case when the organization of hot water supply is planned, the installation of additional equipment in the form of an indirect heating boiler, also produced by Protherm, is required.

Single-boiler boiler "Skat" 9 kW also has 2 heating elements with a capacity of 6 and 3 kW and just like the 12-kilowatt appliance, it is used for heating cottages and small retail spaces. The Skat-14 model completes a range of low and medium power devices and, due to its versatility, is quite popular. The model range continues with powerful and especially powerful units of 18, 21, 24 and 28 kW designed for heating production areas and designed for serious loads. Such models can cascade to be installed in a parallel circuit and serve large spaces.

Each boiler is supplied with an instruction manual, in which the installation process of the device is prescribed step by step and recommendations for its maintenance are given.Compliance with simple operating rules will help to extend the life of the device and minimize the risk of malfunctions. The boilers are equipped with a self-diagnostic system: in case of a failure of one of the nodes, a digital code instantly appears on the display. Each breakdown and error has its own numerical value, with the help of which it is possible to quickly and with high accuracy determine the problem area and eliminate the breakdown.

• Error F00 indicates that the NTC sensor circuit has opened. This occurs when the voltage rises to 4.75 V. To remove the error message, the sensor must be reconnected.
• F10 talks about the closure of the NTC sensor, which occurs when the voltage rises to 0.45 V.
• F13 denotes the closure of an NTC sensor located in an external hot water storage tank.
• F19 indicates that the outside temperature sensor is closed. The message will be deleted when it is re-enabled.
• F20 indicates the start of the emergency thermostat, resulting from overheating of the device. In this case, it is recommended that the boiler be turned off for a short time and allowed to cool.
• F22 indicates a low water pressure in the system and is displayed when this indicator drops below 0.6 bar.After the pressure stabilizes, the error is automatically removed.

• F41 talks about sticking a relay. The error disappears if the device is turned off.
• F63 indicates a memory error and disappears after the setup code is updated (code: d96).
• F73 signals a break in the pressure sensor that occurs when the voltage drops to 1 V.
• F74 speaks of a closure in a 0 V pressure sensor that occurs after the voltage value rises to 4 V.
• F85 means lowering the temperature to 3 degrees and freezing the water.
• F86 says that the coolant in the storage tank designed for hot water, froze, or its temperature dropped below three degrees. When the heat carrier is heated to 4 degrees, the message is automatically deleted.

If the boiler does not start, or one of the fuses is constantly blown in it, this indicates a more serious breakdown and requires immediate treatment to the service center.

Electric boilers Protherm can quickly and effectively solve the problem of heating and organize hot water, using a minimum of labor and resources.

How to fix the error F20, see the next video.