To heat a medium-sized room, special heating systems based on an electrical appliance are most often used. Such devices are considered safer than gas boilers, and are also distinguished by their environmental friendliness. In order to independently carry out the installation of such a device, you should consider in more detail the connection diagram of an electric heating boiler. Thermal generators are characterized by high efficiency. This suggests that they will be able to heat any type of house. Many modern technological equipment are equipped with an adjustment system that helps, at the discretion of the owner, to correct their work, making it more convenient.
Main advantages of the system
The electric heating boiler includes a heat exchanger, a metal container, and a controller. Its purpose is to convert electric current into heating the coolant (oil, water or antifreeze). Such devices are usually used for heating houses, offices, warehouses, shops, private buildings, as well as shops. Tothe main advantages of the electrical circuit for connecting a private house to heating include:
- silent operation;
- compact, which helps to place equipment in any room;
- safe operation due to the absence of open flames;
- carry out work only on electricity, are distinguished by their environmental friendliness;
- The appliance has a special power control circuit that helps to accurately adjust the indoor temperature;
- in the described boilers there are no mechanisms that directly affect each other, which indicates their high stability;
- do not need constant supervision;
- highly efficient (up to 100 percent efficiency);
- does not need permission from the relevant organization for self-installation indoors;
- the water heater can be left off for 6 months without affecting its performance (this quality is considered very important for suburban areas, which the owners visit only in the summer season);
- there are a large number of different electric boilers that differ in their power, mounting method and principle of operation;
- when the liquid is heated, the device does not form soot, which is so dangerous for the human body and the environment as a whole.
Another advantage of the device is the absence of parts that could directly act on each other mechanically. This helps to significantly reduce the risk of exit.device out of order.
If you compare an electric heating boiler with equipment operating on other types of coolant, you can see some significant differences.
As an example, consider Protherm SKAT heating. Only a professional master can connect a boiler of this type to electricity and a heating system. It is best to buy the device in a special store, as it will have all the necessary documents and will be placed in the original packaging.
Opening the package is allowed only in the presence of an employee from a special organization. Together with the employee, it should be determined whether there are any damages or other significant defects on the surface of the equipment, in which the use of the device is strictly prohibited by safety standards.
What are the safety rules to follow?
The connection diagram of an electric heating boiler must prescribe instructions with safety rules. Before starting the installation of the device, special attention should be paid to the safety of electrical work.
The most important rule is to turn off the electrical energy at the time of mounting the heating boiler. You need to install the device, observing a certain distance from other objects located in the immediate vicinity:
- there must be a free space of at least five meters between the device case and the wall;
- the front panel should always remain accessible to the user, only 70meters of free space;
- distance to the ceiling at least 80 centimeters;
- distance to the flooring is not less than 50 centimeters (if the electric boiler is suspended);
- distance to adjacent pipe at least 50 centimeters.
Another important rule is the obligatory three-phase network, designed for 380 W, which will help to significantly reduce the current loads on electrical wiring. When using a single-phase network, other wiring may be required to connect a larger heater. If you use the old one, then it may simply not withstand such a load and lead to spontaneous combustion, a short circuit.
Tight connections
The last rule is tight connections. All wire connections must remain sealed and well protected against the ingress of any liquid. If water accidentally gets on the contacts, then the pipeline itself can be severely damaged (for example, the coupling connected to the device will burst) and when condensate drains from the ceiling (in an unheated room). Experts advise to be sure to protect the cable with a corrugation or a cable channel made of self-extinguishing material. In case of spontaneous combustion of wires, such material will help protect against the spread of fire to other areas.
All the main projects and wiring diagrams for connecting a house, supplying a transport line, installing a pump and radiators are quite simple. The main task of the user in this case is to connect allbasic items and turn on the power.
Installation of equipment
The connection diagram for a solid fuel and electric boiler consists of several stages. To begin with, the unit will have to be installed indoors. The heater can be wall or floor. When using the floor model, the kit specifically includes a stand on which the device is placed.
To hang the heating boiler on the wall, you need to prepare special anchors with dowels and a drill with an appropriate drill. To begin with, mark the wall with a tape measure and a marker. Holes must be marked on the wall with high accuracy and in a horizontal projection. After that, the designated areas are drilled, dowels are driven into them and the anchors are screwed in. After the anchor is well seated in the hole, it will be possible to hang the heating system without fear.
It is important to remember that the installation of the device must occur with maximum accuracy in the horizontal and vertical plane. Any misalignment and deficiency can lead to a deterioration in the performance of the heating device and even shorten the life of the device.
Wiring electricity
The scheme for connecting the electric boiler "Scat" will not do without wiring electricity. Since a water heater powered by electricity is distinguished by its high power, it will have to be connected not from an outlet, but from the mains itself.
To do this, from the power distribution box in the room should beseparate line directly to the installed heater. It is best to use hidden cable laying for this, as this will help protect it from mechanical stress and will not spoil the look of the room.
To power the heating, you need to use a cable with a large cross section so that it can fully withstand prolonged exposure to high current. It should be remembered that a water heater with a low power (below 7 kW) can be connected to a single-phase network, which is laid in Khrushchev and apartments built according to the old model.
And the last distinguishing feature of the electric heating connection scheme is that boilers with a power of up to 3.5 kW can function when connected to a simple outlet, but not when connected to a separate line of their junction box. Boilers with low power are best used in apartments, since their wiring is most often single-phase. Doing a new cable layout in this case will be inefficient.
Installing the safety device
After all the input wires are connected to the electrolyte, the electrical connection of the boiler to the boiler must be supplemented with reliable protection. To do this, it is equipped with a circuit breaker and an RCD built into the main shield. The circuit breaker is important in the device in order to prevent short circuits and overloads of the wiring itself. Connecting the electrolyte to the RCD will help prevent various leaks and protect residents.
Also, many experts additionally recommend installingvoltage stabilizer, since any, even minimal power surges, can lead to problems with the operation of the device and even break it. Everyone knows about the need to ground a boiler that runs on electricity. In this case, the most important thing to pay attention to is that the ground wire runs in a straight path - from the busbar to the device case.
Heater activation
The circuit diagram for connecting the heating system ends with the activation of the device. After all the parts are connected to the structure in question, you need to carefully check the reliability of all connections. It is important to check that there are no exposed contacts and damaged insulation in any place.
It is also important to check all parts of the coupling, joints, pipes and taps. Only after a full inspection of the heating system, you can proceed to start the device. First you need to push all the valves connected to the device, and then activate the operation of the electric boiler.
Special attention should be paid to the functioning of temperature and pressure sensors, as well as to the veracity of their readings. The nominal values are set in the instructions that the manufacturer always attaches to his product. If there are any deviations from the norm, a specialist should be called as soon as possible.
Combination of gas and electric boiler
There is also a separate scheme for connecting a gas boiler with an electric boiler. In this combination, the electric boiler canact as a backup or main source. When conducting communication, it is best to use a manual connection scheme.
The gas-containing boiler is a proven and reliable device that can operate for a long time without breakdowns and does not require expensive maintenance. In parallel, installing an electric boiler in the system to insure heating in the automatic mode will simply be inefficient. In the event of a breakdown, the gas boiler can always be switched to the second unit.
Relay connection methods
There are several schemes for connecting an electrical relay. These include:
- Parallel connection. With this method, the devices are divided into main output and high-speed. For the second models, the response time reaches only 0.02 seconds. For standard design mechanisms, the response time varies between 0.02 and 1.01 seconds.
- Serial type of connection - used for instant short-term operation.
If the room is characterized by a stable voltage of the power source, then the intermediate relay is activated on time. In addition, there is a built-in function to change the operation of the device in case of an emergency voltage drop to 40-60 percent. In the design, such an element can have one, two or three windings at once (triple windings are quite rare).
Connecting an intermediate relay is considered a very important step for anydevices, since it is the relay that helps not only to automatically interrupt the circuit, but also significantly increases the functionality of other relays that are in the same electrical circuit.
The operating time of the device will directly depend on the frequency of its operation. It will be determined by the number of cycles of operation and return to the reverse position. The degree of protection of equipment from negative factors surrounding the device will be evaluated by the criterion of the transition of contacts from one position to another.
Basic device connection diagrams
After the electrical relay is mounted in the electrical device, you need to connect it to the electrical system. To do this, you need to use the coil contacts and the contact elements themselves. The relay has, as a rule, several pairs of contacts at once (it includes normal opening and normal closing).
During normal operation, the device does not send any signals to the coil. Since there is no polarity in the coil, the contacts are connected to each other in an arbitrary form.
Connecting an electric heater in a room is quite a costly job. To make the device more economical to use, more modern mechanisms should be added to the heating system, for example, underfloor heating, which will help distribute heat more efficiently throughout the room. Also, experts recommend buying a two-tariff energy consumption meter and turning on the heating at night. In the daytime, most often everyone works and there is no need for space heating. Better fullyheating the house at night, as this will save a lot.
The best heating of the room can be achieved if the boiler is placed at the bottom of the heating system. Additionally, special automation should be used, which makes it possible to turn on the heating system at a certain time or only if the temperature drops to a certain point. The equipment in this case will generate heat only when necessary. Another way to save on the use of an electric boiler is to purchase heat accumulators. Such devices with water can warm the room during the day, and the liquid in them will heat up at night.
