Technical features of boilers
The product range of boilers is represented by the following series:
- Standard
The “Standard” series is represented by the “Economy” and “Standard” models. All boilers of the standard category are characterized by the ability to smoothly adjust the coolant temperature and are equipped with an input for connecting a circulation pump. The design of these boilers is extremely simple and consists of a metal cylinder, in the lower part of which there is a heating element, and in the upper part there is a temperature regulator sensor.
The line of this series is rich in models of varying power - from 2.5 kW to 30 kW. For heating large areas, the additional installation of a circulation pump and an expansion tank is required. Typically used as electric boilers for home and small offices.
- Comfort
Devices in this category differ in their equipment - for example, depending on the power, the models contain a certain number of heating elements and connectors for connecting room temperature sensors.
Among private property owners, devices of this series are most in demand.
Electric boilers "Evan" have different technical characteristics in this series, depending on the presence or absence of a three-stage switch, a built-in circulation pump, and an electronic control unit. Accordingly, more expensive models have all three mechanisms, while economical models only have a three-stage power switch. The boiler power range is from 3.5 kW to 30 kW. They are used as electric boilers for homes, offices, and warehouses.
- Professional
Boilers of this series have very high power characteristics - thus, the model range is represented by units with heating output from 36 kW to 480 kW. The boilers have (not in all models) four-stage power regulation, protection against short circuits, inappropriate pressure, overheating and overload.
The models are equipped with a control panel, which displays information about all system parameters and with which you can comfortably control the boiler room settings. They are rarely used as electric boilers for the home, since the power of the boilers allows them to be used at huge production facilities.
- Lux
Electric boilers of this series are the most complete and functional. They are designed as electric heating boilers for homes, administrative buildings and industrial premises. All models in this line have a built-in circulation pump, LCD display and a 12-liter expansion tank.
It is possible to connect an additional circuit for underfloor heating, watering greenhouses, and heating water in a swimming pool.
In addition, the system parameters can be controlled automatically - depending on weather conditions, as well as remotely - using a special remote control. The devices differ from other models of this manufacturer in their silent operation and the possibility of fully automated operation.
Electric boiler EVAN EPO-24
The EPO-24 boiler is a stationary electric device with a power of 24 kW, designed for heating various residential and industrial premises with an area of up to 240 m2. EPO-24 boilers are powered by three-phase (380V, 50Hz) alternating current sources with a solidly grounded neutral. They are equipped with one-stage or three-stage control panels.
Specifications
| Characteristic | EPO-24 |
| power, kWt | 24 |
| Operating voltage, V, ±10% | 380 |
| Heated area (m2), with a ceiling height of 2.7 m | 240 |
| Stage power, kW | 24/8 |
| Overall dimensions of the boiler (mm) / pipe thread G | 565x270x220 / G 1¼ |
| Overall dimensions of a single-stage remote control (WxHxD), mm | 205x250x175 |
| Overall dimensions of the three-stage remote control (WxHxD), mm | 380x265x180 |
| Weight, kg: boiler / remote control 1-stage. / remote control 3-way | 15 / 4 / 6 |
| Cross-section of the supply cable core, mm2 | 10 |
| Working pressure in the boiler, no more | 0.3 MPa |
| Boiler test pressure | 0.5 MPa |
| Pressure testing of the heating system with boiler after installation, no more | 0.4 MPa |
| Coolant temperature adjustment range | 30-85 °C |
| Self-resetting alarm temperature | 92±3 °С |
| Boiler efficiency EVAN EPO-24 | 93% |
| Warranty period | 18 months |
Advantages of EVAN EPO-24 boilers
- Profitability due to low investment cost and rational use of electricity, which is achieved through the use of an automatic room temperature control system in the electric boiler.
- Easy installation and maintenance.
- No additional costs - no investment required during operation.
- Compact - no separate room required.
- Versatility - can be used as a main or backup heat source.
- Environmentally friendly - does not reduce the level of oxygen in the room, there are no harmful emissions of combustion products.
- Reliability in energy supply - electricity is the least dependent on the availability of traditional raw energy sources (oil, fuel oil, gas, coal, etc.).
- Independence from external factors - the temperature in the house does not depend on the operation of thermal power plants and utilities, there is no seasonal drop in gas pressure in the gas pipeline, it maintains the set temperature in the room regardless of weather conditions.
Structure and dimensional drawing
1 - housing, 2 - heating element, 3 - protective casing, 4 - emergency thermal switch with self-reset, 5 - thermostat sensor, 6 - inlet pipe, 7 - outlet pipe, 8 - M8 clamp for the neutral protective conductor PE9 - coverInstallation and installation instructions
Before installing the boiler, check the correctness and quality of installation of the natural circulation heating system. The heating system pipes must be located so as to promote natural coolant circulation. In this case, the maximum coolant level should not exceed 30 meters to the boiler level (working pressure in the boiler is not higher than 0.3 MPa). If it is impossible or undesirable to achieve natural circulation of the coolant in the heating system, it is necessary to use a circulation pump. The heating system must have an expansion tank communicating with the atmosphere. When using a membrane-type expansion tank, a safety valve rated for a pressure of no more than 0.4 MPa must be installed at the boiler outlet in front of the ball valve. Since when the safety valve is activated, coolant or steam may be released through its drain hole, it is necessary to drain this hole into the sewer system. Ball valves are installed at the inlet and outlet of the boiler, which are used during dismantling, repair and maintenance of the device. Installation of shut-off valves on the pipeline connecting the expansion tank to the heating system is prohibited!
Pressure testing of the heating system with the boiler after installation is no more than 0.4 MPa.
The boiler must be installed in a vertical position (protective casing at the top). The control panel is mounted vertically at a height of 1.4-1.7 m from the floor on walls and structures in well-lit rooms.
Connection diagram of the boiler to the heating system Order electric boilers EPO-24
Evan boilers: pros and cons
Among the disadvantages of electric heating boilers for the Evan home are the dependence on electricity and its high consumption. However, the listed disadvantages are more or less characteristic of most electric heaters. Regarding Evan boilers specifically, many owners complain about the noisy operation of the devices, unreliable heating elements, frequent relay breakdowns and failure of the boiler automation.
Therefore, when choosing a boiler, it is better to consult with a company specialist, because the causes of breakdowns are often caused by operating conditions, instability of the supplied electricity, incorrectly executed connection diagram of the electric heating boiler and other reasons not related to manufacturing defects.
Speaking about the advantages of these Russian boilers, they usually highlight their low cost, ease of installation, a huge selection of models and ease of operation. In addition, the devices have all the advantages of electric boilers as such.
In this series, they note the absence of the need to prepare fuel and install a chimney (as is required in the case of gas and solid fuel boilers), high efficiency (99%) and a level of safety (subject to high-quality electrics).
Features of connecting electric boilers
Even for a non-specialist, the connection diagram for an electric heating boiler is clear, so installing the device will not be difficult. To understand how to install, you should know what devices you will be working with and what their purpose is.
So, during installation you will have to mount the boiler itself, various regulators, and an expansion tank on the wall (or on the floor). Depending on the purpose, one or more main circuits are connected to the boiler. Also, depending on the model, installation of a circulation pump and boiler unit may be required.
Before proceeding with installation, you should familiarize yourself with a document such as the connection diagram for an electric heating boiler, which the manufacturer encloses with the package of documents for the unit. In accordance with this document, the device is connected to other devices in the heating network.
It should be borne in mind that if the boiler power does not exceed 3.5 kW, it can be plugged into an outlet. Otherwise, electrical installation is carried out directly from the junction box.
Moreover, if the power of the device exceeds 7 kW, the use of a three-phase network of 380 V will be required. The boiler must be protected by an RCD and a circuit breaker.
We should not forget about grounding the wiring.
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Important Tips
You see that the Evan Warmos boiler and Epo Evan boilers of various models are quite simple to install. In addition to the above installation steps, we would also like to give a few simple recommendations that can significantly simplify the installation process:
- If the heating system to which you will connect the boiler has already been in use before, we recommend cleaning it with cleaning agents.
- An electric boiler is optimal for additional heating of a room, but not as the main source of heat.
- If the selected boiler is of an electrode type, it will also be necessary to install an air vent and a check valve.
- Install shut-off valves if you are using an open type system.
- When installing a new boiler, leave space on at least one side so that if it breaks or malfunctions, you have easy access to it.
- Install a filter on the return line of the heating system.
An electric boiler is an excellent tool for creating a high-quality autonomous heating system. This is very convenient if you are not connected to a central heating system. One of the advantages of modern boilers is the presence of a temperature control sensor depending on the time of day and night and the temperature outside the window. In essence, this is a small boiler room.
Modern domestically produced Evan boilers are simple and convenient to operate. They are ideal for families with small children, because they are completely safe. During operation, the most important thing for you is to monitor the serviceability of the boiler and promptly clean the heating elements from scale.
