Warm floors are increasingly used in private houses and apartments. They help to obtain an optimal and comfortable temperature for a person. Stores sell both individual components for heated floors and ready-made kits. Installing a heated floor is not that difficult. Can cope with this task home handyman. One of the most important installation stages is connecting the floor to the control system - the thermostat. We will tell you how to connect a heated floor to a thermostat correctly.
Warm floors can be water or electric. In water heated floors, the heating element is pipes with hot water supplied from the heating system. The power source for electric floors is the same, however, they are distinguished by the heating elements used: cable or film.
The heating element can be:
- single or double core resistive heating cable;
- thermal mats;
- self-regulating cable;
- heating film (bimetallic or carbon);
- carbon rods.
Thermostat: purpose, types and methods of connection
The underfloor heating system is controlled via a thermostat. Manufacturers offer two types of thermostats:
- Mechanical. The temperature that they want to maintain in the house is set using a mechanical rheostat.
- Electronic. They work on the basis of a programming device. There are touch and button ones. The operation of the system through such a thermostat is initiated at specified time and according to the specified temperature indicators.
Thermostats are installed at a height of about 1.5 meters from the floor surface. The location for installing the thermostat must be protected from direct sunlight and any additional heat sources. The thermostat is connected permanently, powered from the electrical panel or through sockets already available in the room.
Typically, the manufacturer draws a connection diagram on the thermostat housing. This allows the home craftsman to connect this device himself.
Regardless of the type, thermostats are designed to control the following types of electrical heating elements:
- Heating cable. This is a conductor with high resistance. It is placed in reliable insulation. When current passes, the cable heats up.
- Thermal mat. This device uses the same high-resistance cable, but it is attached to a matte film with a predetermined pitch.
- Special film, which emits infrared rays. The thickness of such a film is no more than 5 mm. A semiconductor flat heating strip is installed in its layer.
If heated floors are installed in several rooms, then it is more advisable to install thermostats in each heating circuit. This will protect the power grid from overloads and allow it to be used for different rooms different operating modes and turn on the systems independently of each other.
After installing the thermostat, a phase is supplied to the distribution box, and neutral and ground are also connected. It is necessary to make a groove in the wall into which plastic tubes are placed. The power wires of the heating cable are placed in one of them, and the wire from the sensor is placed in the other. The sensor is placed under the finishing floor covering. After this, you can begin installing and connecting the electric floor.
The difference between the connection diagram of a single-core heated floor and the diagram of a two-core one
Connection diagram for a heated floor to a thermostat
The heating floor connection diagram is selected depending on the type of floor.
Cable floor connection
Before installing the cable, the floor is leveled using one of the methods, depending on its type. Before laying the cable, it is necessary to stretch the power wires to the thermostat. The diagram below shows that the coupling after installation is completed will be in the floor screed. A mounting tape is laid out on the surface of the subfloor to help secure the cable. Most often, the cable is laid in a snake or snail pattern.
Please note! When laying heated floors, cable sections must not be allowed to intersect.
After laying the cable, a sensor placed in a plastic tube is installed. Using a special tester, the quality of installation and compliance of the cable resistance with the specifications is checked. The warm floor is ready for screeding.
Floor temperature sensor
Depending on the type of screed used, the floor is kept until completely hardened. Only after this can all wires be attached to the thermostat. Screw terminals are used for connection.
Connecting thermal mats
The principle of connecting thermal mats differs little from the similar process for a cable floor. Let's dwell only on the differences.
A thermal mat is the same cable, but fixed with a certain pitch on a heat-resistant film. This makes installation easier. The film with cable is laid out on the prepared floor base and filled with mortar or tile adhesive. After this, the finishing coating is installed. Thermal insulation is not used for this type of flooring to avoid overheating of the system.
IN finished form this design has a thickness of no more than one and a half centimeters. To place the sensor in such a floor, you have to make a depression on the surface.
Sometimes there are not enough so-called cold ends to connect the mats to the thermostat. In this case, a piece of cable is cut out of the mat. The coupling is filled with a screed.
Installation of this type of floor gives significant savings in materials: thermal insulation, screed, fasteners. In addition, the amount of work is significantly reduced. Such a system has practically no restrictions in its use, since it slightly raises the floor surface and can be used in rooms with low ceilings.
Connecting the film floor
The basis of the film floor is carbon or bimetallic heating elements sealed into a heat-resistant film. Along the edge of the heating film there are copper conductors with which the system is connected to the electrical network.
A foil-coated substrate must be placed under the heating film, which will reflect infrared rays towards the room. In this case, a plastic tube with a sensor is placed in a recess made or attached to the surface of the film.
Connection diagram for infrared heated floor - standard installation
If necessary, the film can be cut along special lines. On the one hand, the conductive strips are insulated, and on the other, they are left open for connection to wires. The film strips are laid out and connected to one another in parallel.
This heated floor is the most versatile, as it can be installed under any flooring.
Connecting a water heated floor
The circuit of a water heated floor is slightly different from an electric floor. First of all, you need to determine the connection method.
- Connection to main heating. This method is used in apartment buildings. However, with such a connection, excessive heat consumption is possible, and you will leave your neighbors' apartments cold. You can avoid such problems in apartments where the heating is on the return line. In this case, you will get a comfortable, not too hot temperature in underfloor heating pipes. The main disadvantage of this connection method is the inability to smoothly regulate the temperature in the coolant.
- Connection to an individual heating system. This connection method can only be used in private housing construction. Below is a schematic diagram of the connection.
Connection diagram for a warm water floor
It shows the following circuit elements:
- Control valve. This part receives a signal from a sensor installed on the floor surface. Once the system reaches the desired temperature, the valve closes.
- Valve balancing device. This device does not allow the coolant to pass freely. If the coolant supply is turned off, the valve releases it in an economical circle, without the boiler.
- Circulation pump. This device maintains a certain coolant pressure in the heating circuits.
- Safety thermostat. Designed to control the temperature in the system. Installed on the coolant inlet pipe.
- Electric drive. Controls the valves of all heating circuits.
- The collector distributes the coolant among the circuits.
- The bypass (manifold valve) is responsible for circulating water through a small circle of the system.
- Thermostat. If necessary, there can be several of them, which allows you to set a certain temperature in each room.
Warm floor with hydraulic separator
An important stage in the installation of a warm water floor is the installation of a water collector. All circuits of the system are connected to this device. The manifold design allows individual adjustment of pressure and temperature in each circuit.
Connection diagram for a heated floor collector in a private house
A warm water floor can be an additional source of heating or used as an independent option. In the first option, radiators are installed in the forward direction, and a heated floor is connected in the reverse direction.
The diagram below shows:
- Circulation pump.
- Heating radiators.
- Boiler.
- Storage tank.
- Control device.
- Stopcocks.
Connecting a heated floor using a combined scheme
Warm floors are increasingly used in the residential sector. This pleasure is not cheap, but by doing the installation yourself, you can save a lot. The advice from our website will help you perform competent installation.
Video: connecting a heated floor to a thermostat
Connecting a thermostat to a heated floor
In underfloor heating control systems, the role of the control unit is played by a thermostat - a device that processes information received from a temperature sensor and, in accordance with a given mode, turns the floor heating on or off.
With an electric floor heating system, thermostats are required to be installed. Installing a thermostat in a water heated floor system is not necessary. But if gender is additional measure heating, and at the same time the temperature of the coolant at the entrance to the circuit is above 50 degrees, installing a thermostat will solve the problem of overheating of the room.
Types of thermostats
Thermostats for any underfloor heating system can be:
- programmable, working according to a pre-established, including complex program;
- without software control.
Changing modes on non-programmable thermostats is done manually, using a rotary control (mechanical adjustment) or buttons (electronic digital).
Programmable thermostats are more expensive and more difficult to control, but they can save significant energy resources by turning off floor heating or lowering its temperature at night or during the day when heating is not needed.
Mechanical non-programmable thermostats are controlled by simply turning the knob to the specified level. Electronic digital - using buttons, touch panel or remote control. The price of non-programmable thermostats is lower due to the extremely simple logical part.
According to the installation method, thermostats are:
- built-in - they are installed in a special recess in the wall;
- overhead - they are attached to the wall using screws or self-tapping screws.
The choice of installation type is a matter of taste, but it does not affect functionality.
Temperature sensors
The sensors are a thermocouple made of two wires that changes the resistance of the circuit when heated. The wires are connected to the corresponding terminals of the thermostat. Sensors are:
Remote sensors are divided into floor or air temperature sensors. The first ones are installed simultaneously with the laying of the heating elements directly under the finishing coating, the second ones - in a place convenient for measuring the air temperature. Built-in sensors are located right inside the thermostat. Some thermostat models have both types of sensors.
In the bathroom and kitchen, it is better to install thermostats with a floor temperature sensor - the air in these rooms can be heated by a stove or hot water, but the floor will remain cold.
Connecting a thermostat to electric heated floors
Electric heated floors are made using a high-resistance heating cable or infrared film. They are laid on a specially prepared base, after which the floor is screeded and the finishing coating is laid.
Thermostat connection technology:
- Before installing the floor, it is necessary to determine the location where the thermostat will be located and plan its connection to the electrical network. To connect the thermostat, a voltage of 220 V AC is required, that is, you can connect it to a regular outlet or to a separate cable through a circuit breaker.
- When laying the floor, choose a location for the temperature sensor. It should be located near the thermostat, on an area of the floor free from furniture.
- For infrared floors, the sensor is placed on the reverse side of the film and connected to the wires going to the thermostat.
- For cable heated floors poured with concrete screed, the sensor must be placed in a metal corrugated pipe, insulating it from concrete. This measure is necessary for easy removal and replacement of the sensor in the event of its failure. A sensor embedded in concrete cannot be easily removed. The pipe is led to the wall on which the thermostat is installed.
- After laying the floor, begin installing the regulator. In the selected location, prepare a recess in the wall according to the dimensions of the built-in thermostat housing or make markings for attaching the overhead thermostat. Remove the front panel and secure the regulator in place.
- Compare the permissible switching power of the thermostat contacts with the power of the heating cable or infrared floor. If it is less, additionally install a magnetic starter with a coil rating
220V. In this case, the heating cable circuit is connected to a 220 V power supply through the contacts of the magnetic starter, and the starter coil circuit is connected to the output from the thermostat.
- Check the functionality of the thermostat:
- 220 V power supply;
- Set the minimum temperature value on the thermostat;
- Turn on the floor heating with a toggle switch;
- Change the temperature mode to maximum by turning the knob or using buttons - a click should be heard, notifying that the heating circuit is closed.
Connecting a thermostat to water heated floors
Thermostats for water floor heating systems are a device for controlling a servo drive that regulates the flow of coolant into the heating circuit. They can be either electronically or manually controlled, while such control systems usually use sensors for measuring air temperature rather than floor temperature, due to the high inertia of heating.
- The sensor is installed at a height of approximately 100-120 cm above the floor level on the wall, possibly next to the thermostat. The wall should not be subjected to additional heating from heating radiators.
- Install the power supply circuits of the thermostat and the sensor circuits.
- If a thermostat with electrical connection with a servo drive is used, lay a cable to its control circuits.
- When using a radio-controlled controller, adjust it.
- The operation of the control system is checked using an external thermometer: the desired mode is set on the regulator and the temperature is measured at the location where the sensor is installed for several hours. The temperature should not fluctuate significantly.
All work on connecting electrical circuits must be performed with the circuit breaker turned off - this is the key to your safety!
Connecting an electric single-core cable heated floor to a thermostat
The temperature regulator is important element any electric heated floor. It allows you to increase the efficiency of the entire system and significantly reduce energy consumption. The installation diagram of this device is quite simple. Even a non-specialist who has basic skills in working with electrical appliances can install it.
Single-core heating cable for underfloor heating
How does a thermostat work?
The main purpose of the thermostat is to maintain stable operation of the electric heated floor. Depending on the specified parameters, it turns the heating elements on and off certain time. This action allows you to reduce energy consumption without compromising the quality of heating. The temperature controller receives information about the system using a special sensor. It is installed inside the structure, where it records changes in the specified temperature regime.
Connecting a heated floor to a thermostat
There are the following types of devices for regulating the operation of an underfloor heating system:
- mechanical. It works thanks to the presence of a special mechanical rheostat that controls the temperature of the heating system;
Mechanical thermostat IMIT-TA3n
Color schemes of the thermostat for heated floors Thermoreg TI 970
Programmable thermostat Menred E51
Preparatory work
Scheme of cable heated floor with thermostat
Before installing a thermostat, sensor and other elements of the system, it is necessary to calculate the number of devices of this type that will ensure the efficient operation of the heated floor. If underfloor heating is provided for the entire house, then it is recommended that each room be connected to the electrical network independently.
Also, for different circuits it is necessary to install a separate thermostat. This approach will allow us to obtain a more efficient system, where certain operating parameters can be set in each room.
Before installing the temperature controller, you must carefully inspect its body and read the data sheet. Usually the manufacturer describes the installation diagram in detail. You need to understand that the power cable can be connected to the device either directly through the electrical wiring or through an outlet. Manufacturers also recommend additionally using a separate circuit breaker when installing the thermostat. This will allow you to operate your underfloor heating more efficiently.
Installing a Temperature Sensor for a Cable Mat
The thermostat is installed on the wall near the electrical wiring. It is best to choose a place near an outlet, but where there is no direct sunlight. The installation height of the thermostat is about 1.5 m. A small recess is made in the selected area, which will allow the installation of the device box. You also need to make a groove in the wall where two plastic tubes will be placed.
They are intended for the power wires of the heating cable and the temperature sensor, which will be installed inside the heated floor structure. It is imperative to connect a phase, ground and zero to the thermostat box. After all the preparatory work, they begin to install the single-core cable.
How to connect a cable heated floor to a thermostat
Single-core cable installation
The installation diagram of the main elements of an electric heated floor is as follows:
- If necessary, level the surface of the base.
- Using adhesive tape, the heat-insulating substrate with foil coating is installed.
Laying a single-core heating cable, connection diagram
Connecting system elements to the network
After installation temperature sensor The heated floor is connected to the thermostat. The connection diagram for all system elements is as follows:
Thermostat design for heated floors
- Network wires with a voltage of 220 V are connected to the first and second sockets of the device. The connection diagram must be strictly observed. Wire L (phase) is connected to the first socket. It is most often colored white, black or brown. Wire N (zero) is connected to the second socket. It is marked in blue.
- The heated floor is connected to the third and fourth sockets cable type. The connection diagram is as follows: the third contact is N (zero), the fourth is L (phase).
- The fifth socket is intended for grounding. This cable is painted green.
- The temperature sensor is connected to the sixth and seventh sockets. The principle of polarity in in this case no need to comply. The sensor is connected in any order.
Connection diagram for single-core cable for heated floor Teplolux
Advantages of Urie thermostats
After these manipulations, it is necessary to set the maximum heating temperature that the cable-type heated floor should reach. The correctness of the actions should be confirmed by a characteristic click. It indicates the heating circuit is closed.
Features of connecting different types of underfloor heating
Depending on the type of heated floor, connecting its elements to the thermostat, including the sensor, is carried out in the following way:
- when connecting a heating system that is formed using a single-core cable, you need to install the main current-carrying wire white to contacts numbered three and four. Both ends are connected to the sockets heating element. A green wire is connected to contact number five - grounding;
- The two-core cable is connected to the same contacts, but according to a different circuit. Three wires come out of its end, where brown is phase, blue is zero, green is ground. They are connected in sequential order to each socket.
Connection diagram of the thermostat sensor to warm floor
The principle of connecting all elements of the system to the thermostat and the electrical network is the same. Depending on the device model used, some features may appear during installation. In order not to make mistakes and do everything correctly, you should carefully study the instructions, which indicate each step. Also on the device itself is a schematic plan for connecting all the elements.
Video: Installation of single-core and double-core heating cables
Connecting the heated floor to the thermostat and the electrical network
Laying and connecting a heated floor is not complex process in the event that we are dealing with its electrical varieties.
Unlike a water floor that is quite cumbersome to install, electric models suitable for any premises. There are practically no restrictions on their use. The arrangement of the system consists in the correct location of the heating elements. Then follows the connection of the heated floor to the thermostat and to the source of electricity. Features of the installation scheme depend on the type of heating element and the configuration of the room.
Types of electric floors
Electric floors have a common power source, but differ in the design of the heating elements. To find out how to properly connect a heated floor, you need to clarify what type of floor you plan to install.
The following can act as a heating base:
- resistive heating cable (single or two-core);
- self-regulating cable;
- thermal mats (thin conductor laid on a mesh);
- heating film (carbon or bimetallic);
- carbon rods.
There is a different connection diagram for an electric heated floor for each of the above options.
When installing a cable floor, it is necessary to correctly calculate the laying step to avoid excessive heat generation or uneven heating surfaces.
Heating mats and film are purchased based on the manufacturer’s recommendations, which are usually indicated on the packaging.
Connecting the thermostat
Before connecting a heated floor (any of its electric varieties), you need to determine the location of the thermostat.
This device is designed to control the system and maintain the required temperature in the room. In addition, heating elements are connected to the network via a thermostat. The range of thermostats is quite wide - from simple mechanical devices to smart devices.
Types of thermostats
Thermostats with a built-in sensor that records the air temperature in the room should be installed at a height of at least one and a half meters from the floor surface and in places where they will be protected from heat sources (for example, direct sunlight).
Before connecting the heated floor thermostat, you should decide which of the two existing methods you will perform this operation. You can make a permanent connection from the electrical panel or use an existing outlet.
Most models of thermostats are equipped with a diagram, which is usually depicted on the body. This greatly simplifies the procedure and allows you to carry it out yourself, without the help of a professional electrician.
After the thermostat is installed, we connect the phase, as well as ground and zero, to the distribution box. We cut a groove in the wall to accommodate two plastic tubes. One of them is designed to accommodate the power wires of the heating cable, the other is for wiring the internal sensor, which will be located under the floor covering. When all these measures have been completed, you can begin installing and connecting the electric heated floor.
Installing a thermostat
Connecting the cable floor
First, we level the surface, then attach damper tape along the wall and lay thermal insulation. The cable can also be installed on the subfloor, provided that there is a heated room below. Before laying the cable, we stretch the power wires to the thermostat box (the coupling will eventually have to be in the body concrete screed).
An example of installing a heating cable for a heated floor
Next, the installation and connection of the heated floor is done according to the following scheme: we place a mounting tape on the surface of the subfloor or thermal insulation. It is needed to secure the cable. Most in a convenient way styling is considered the so-called. snake
Important: when laying the cable lines must not intersect!
Fastenings on the mounting tape will help position the conductor evenly. After the cable is laid out, we install the sensor by placing it in the plastic tube described above. The final stage of installation is checking the quality of its implementation: using a tester, we make sure that the cable resistance corresponds to the rated value. Now everything is ready to pour the screed.
Installing a temperature sensor
Before connecting the electric heated floor, you need to make sure that the screed has hardened. When cement-sand mortar becomes hard enough, we connect the power wires from the heating sections and the sensor, as well as the electrical wiring that powers the entire system to the thermostat using screw terminals.
This stage is the most difficult, so it will be best if it is carried out by a professional.
Connecting thermal mats
It is not difficult to understand how a heated floor made of heating mats is connected. The principle of operation in this case is the same as when installing a cable system. Therefore, it makes sense to talk only about the existing differences.
A thermal mat is a thin heating cable attached to a heat-resistant film. Since the laying step is predetermined, all that remains is to determine the area on which the system will be located and its specific power.
Applying screed to thermal mats
Before connecting the heated floor, the film with the cable is placed directly on the rough concrete surface, filled with a thin layer of screed or tile adhesive and covered with the chosen one. finishing material. The use of thermal insulation in this case is unacceptable, as it leads to overheating of the system.
The thickness of the finished structure is only one and a half centimeters, so to place the sensor you have to make a recess in the floor surface.
If the so-called connection is not enough to connect the heated floor to the thermostat. cold ends, then a part of the cable is cut out of the mat. The coupling is located inside the screed.
Since a heat mat is a type of heating cable, the installation of both systems is very similar. The difference is that with heating mats this work is done easier and faster. The lack of thermal insulation and a thin layer of screed makes it profitable to connect a heated floor; its price will be lower due to savings on materials and the amount of work. Another advantage is the ability to install the system in rooms that have restrictions on raising the floor height.
Connecting the film floor
One of the relatively new varieties of heated floors are models made from heating film. To understand how to connect a warm film floor, you need to understand the features of its design. The system consists of heating elements (carbon or bimetallic) sealed in a thin layer of heat-resistant material. Copper conductors run along the edges of the heating film and are connected to the network.
The film heated floor is connected according to the same scheme as the installation of thermal mats. The difference lies in the use of a special substrate, which is laid out over the entire insulated surface. For the substrate, a material coated with foil film is used. It has the ability to reflect infrared radiation and direct it into a heated room.
To install the sensors, a plastic tube is used, which is placed in a recess made in the floor. It is also possible to attach the device to the surface of the film.
The film, unlike mats, can be cut entirely. This is done according to the lines specified by the manufacturer. They pass along the surface at intervals of 20–30 centimeters. The conductive strips are insulated only on one edge, and the other remains open, since this is where the connection to the power wires will be made.
Film heated floor
Sheets of film are laid out and connected to each other in a parallel way. At the end, one wire of the pair is connected to the adjacent sheet, and through the other, the infrared heated floor is connected to the thermostat.
The versatility of film heated floors is that it is compatible with almost any coating. Especially good choice is a laminate. Carpet is the worst choice due to the high probability of damage to the film when pressure is applied to the floor surface.
Connection diagram for a heated floor to a thermostat: recommendations from experts
Recently, during the construction of private houses, heating systems began to include the so-called warm floor.
Typically, underfloor heating complements traditional hot water heating systems. boiler and batteries.
However, some owners of country houses completely switch to heating from below. This is explained by the fact that heating the home from below creates more comfortable accommodations.
When heating a home traditional batteries most warm air accumulates under the ceiling of the room and slowly mixes with the cold air near the floor.
When heating from below the floor is always warm, and heated air is formed in the lower part of the room, where people are constantly present. Such a heating system not only creates comfortable conditions, but also allows you to save on heating.
Installation of heated floors is not difficult. Heating elements are laid on the floor before pouring the screed. After the cement-sand mixture has hardened, the screed is covered with a floor covering.
It remains to connect correctly heating elements to the energy source through a thermostat - and the heating system is ready for operation. Connection is the most critical moment of installation, so it is worth paying due attention to it.
Types of heated floors
You can heat your home from below in different ways. Currently using two types of heated floors:
In the first case, tubes are placed in the screed through which circulation hot water. In the second, there are electric heating elements that are connected to the household electrical network. Electric heating elements vary in design and materials:
- heating cable made of one or two strands of wire with high electrical resistance;
- thermal mat (a cable pre-attached to a mesh that serves as a frame when pouring the screed);
- heating heat-resistant film, between the layers of which there are ribbons of heat-releasing semiconductor materials.
For each type of heating element there is own installation and connection system.
Types of thermostats
In a heated floor system it determines the temperature based on signals from a sensor located in the screed between the heating elements. This device then compares the sensor readings with the temperature set by the user.
If the temperature exceeds the set temperature, the thermostat turns off the heating. When the temperature drops below the set limit, the device turns on the current again. A household thermostat maintains temperature with an accuracy of ±1°C.
Distinguish two types of thermostats:
Mechanical equipped rotary handle, with which you set the desired temperature. The current in it is switched on and off by an electromechanical relay, which emits a characteristic click during operation.
In electronic thermostats no mechanical moving parts. Switching the current on and off in them is carried out by an electronic relay that does not make sounds. Some of these devices have push-button control and a liquid crystal display panel, which indicates the set temperature, the current temperature and the operating mode (heating or cooling).
The most modern thermostats are equipped with a touch-sensitive display and do not have buttons. Mechanical thermostats are not programmable. They constantly maintain the temperature set by turning the knob.
Electronic devices are divided into two groups:
- without program control (maintain a certain temperature);
- programmable (automatically change the heating mode during the day according to a given program).
Programmable Thermostats reduce heating costs regardless of the user's forgetfulness.
Connection diagram for thermostat for water heated floors
In urban apartment buildings connect the heated floor to central heating It's hard enough. This is only possible on the return pipe, because the water in the pipe coming from the boiler is too hot. In this case, it is almost impossible to regulate the temperature in the rooms, since the heating of the coolant depends on the operation of the boiler room.
In a private house with an individual heating system, water from the boiler is distributed according to the collector circuit: from common pipe water flows through separate pipes into each room, and then on the way back to the boiler it is also collected in a return collector.
The water supply to each pipe is regulated separate valve, which opens or closes depending on the readings of a temperature sensor installed on the wall in each room.
Thermostat installed in the boiler room. Control commands coming from it actuate the servos of the coolant distribution valves. The water heated floor system is quite complex, so only a specialist can install and adjust it independently. Installation and connection of electric heating is much simpler.
Connection diagram of an electric heated floor to a thermostat
First you need to choose, how the system in each room will be connected to the intra-apartment network. It can be connected to a common panel or in each room to the nearest outlet. More often they choose a connection to an outlet, since in this case additional communications are not needed.
Thermostat is installed on the wall, on which sunlight does not fall so that the device does not overheat. The distance to the outlet should be minimal.
Subfloor before cable laying need to be isolated from the heat. To do this, sheets of polypropylene laminated with lavsan are laid on it. If there is a heated room below, thermal insulation is not needed. A single-core heating cable is placed on the mounting tape like a snake, a double-core heating cable is placed like a snake or a spiral.
When laying the cable is fixed on the mounting tape. After this, the tester checks the resistance of the conductor. It must correspond to the value specified in the data sheet.
Between turns power cable lay and secure the cable with the temperature sensor in a corrugated plastic tube with a plug. It also should not intersect with the power one. The conductors are connected to the thermostat through a groove in the wall.
Power cable and sensor cable connect to the thermostat according to the instructions described below, and then connect the thermostat to the network. This is necessary to test the performance of the system.
After turning on the thermostat you need to set the desired temperature and check whether the cable heats up. If the preliminary tests are successful, the thermostat is disconnected from the network, and the cables are poured into the screed. When the screed has completely hardened (for M400 cement after 28 days), you can connect the thermostat to the network and heat the room.
On the back of the thermostat there is a panel with 6 or 7 contacts. Contacts have symbols and numbered. Connect the cables this way:
- Use a screwdriver with an indicator to determine the contacts in the socket to which the phase and zero are connected. After this, the outlet is turned off.
- The wire from the socket contact with the phase is connected to contact 1 on the thermostat panel with the designation L, and the neutral wire is connected to contact 2 with the designation N. Polarity must be observed. If a ground is connected to the Euro socket, then its contact is connected to the ground contact in the thermostat.
- A single-core heating cable (white conductor color) is connected to pins 3 and 4. Polarity is not important in this case. The green wire is connected to the neutral terminal of the network or to the ground terminal, if there is one.
- Thermostats are produced with built-in and remote temperature sensors. Built-in is mounted into the body of the device. An external temperature sensor is sold complete with it. It is poured into the screed and connected to contacts 5 and 6 of the thermostat. The polarity is not important. Some thermostats have reverse numbering of contacts, but the designations for devices are also indicated.
Slightly different from solid two-core cable connection. It has conductor terminals on one side only.
Twin cable It is convenient to lay both a snake and a spiral.
Inside it are three conductors with different colors. Brown and blue are current-carrying. They are connected inside the cable. Green is grounding.
Join them Thus:
- Brown the wire is connected to pin 3 (phase marked L).
- Blue the conductor is connected to terminal 4 (zero marked N).
- Green connect to the neutral contact of the network (in our example 2) or to the ground contact, if there is one.
After connection and installation thermostat in the wall, turn on the current, set the operating mode and monitor the operation of the system. The operation of a mechanical device is signaled by relay clicks. The electronic thermostat displays the set and actual temperature, as well as the heating mode, on the display.
Infrared heated floor differs in some installation features. It is laid on foil-coated polypropylene, which is placed with the foil facing up. The foil layer reflects infrared rays into the room.
Strips of infrared film are laid end-to-end on a layer of thermal insulation and their contacts are connected in parallel. Infrared film do not pour into the screed, and covered with laminate. The connection to the thermostat is the same as for other types of underfloor heating.
The water heated floor has a complex adjustment system and is installed simultaneously with the installation of an individual heating system. Install it yourself without special knowledge and skills are not allowed.
Electric heated floors are sold as a kit for self-installation. His easy to install and connect, following the instructions.
How to install and connect an electric heated floor to a thermostat, watch the video:
Thermal output in an apartment is determined by the difference in temperature of the floor covering and air masses. To make it easier to control the heating of rooms, when performing installation work, the heated floor is connected to the thermostat.
Thermoregulation in heating system“warm floor” plays the main role. Using a thermostat, a stable temperature regime is maintained in the system and the heating elements are turned on and off. The device recognizes the readings of the temperature sensor and automatically de-energizes the system when it warms up to the desired limit. At the same time, the device continues to maintain operating mode, monitoring the situation.
As soon as a signal about a decrease in temperature is received from the sensor, the thermostat again activates the system by supplying electricity. The flooring will begin to warm up again. The most popular are reliable mechanical and simple electronic devices. Electronic programmable thermostats are considered more complex. But the differences in design features do not have a special effect on the connection diagram of the heated floor to the thermostat and the electrical network.
Types of thermostats for heated floors
So, in order for an underfloor heating system to function efficiently and with good economic performance, it must be managed correctly. For this purpose, experts advise that it is mandatory to connect the heated floor not only to the electrical network, but also to the thermostat, using any type of device.
Electromechanical
They are considered the simplest; in their functionality they resemble the regulator of a simple iron; they help to ensure the required temperature in the room.
Electronic
Their second name is digital. This type of device makes it possible to monitor the temperature of the floor covering on the existing display.
Programmable
With their help, you can set different heating modes at certain times. The floor will be heated every morning; during the working day the system will automatically turn off, but will be reactivated when you return home.
General connection principles
When installing a heated floor system of any electric type, you should first decide where to install the thermostat. It will control the entire system, maintain the desired temperature and connect heating devices to the power grid. Devices that have built-in sensors that record the temperature in the room are mounted on the wall at a height of at least one and a half meters from the floor. The location for the device must be remote or protected from heat sources.
Before connecting the thermostat and subsequent installation of the electric heated floor, it is necessary to decide how this will be done. There is the possibility of a permanent connection from an electrical panel, or a regular outlet is used to turn on.
Many models of thermoregulatory devices have circuits on their cases that help connect the heated floor to the thermostat. With their presence, the installation process is simplified; all work can be done on your own, without involving electricians.
After installing the thermostat to junction box Phase, neutral and ground are displayed. A groove is cut into the wall into which plastic tubes are placed. One contains the power wire of the heating cable, the other contains the wiring of the sensor located under the floor covering. As soon as all work is completed, it is allowed to proceed to the installation of heating, acting in accordance with the diagram for connecting the heated floor to the thermostat.
By the way, a video with the sequence of connecting a thermostat can easily be found on the Internet today.
Connection diagram
Let's look at the most common options for connecting an electric heated floor to a thermostat.
First, the surface is leveled, after which it is strengthened along the walls. damper tape, a thermal insulation layer is laid. The cable can also be installed on the subfloor, but only if the room located on the floor below is heated. Before laying the cable, power wiring is pulled to the thermostat box. As a result, the coupling should be inside the concrete screed.
A thermal floor is installed, which is connected according to a certain pattern: a mounting tape is placed along the subfloor or thermal insulation layer. It is needed to secure the cable. The most convenient method of device is the “snake”. Here one important condition must be observed - the line is laid in such a way as to prevent the intersection of cables.
The fastening elements of the mounting tape will allow you to place the conductor evenly. Once the cable installation is complete, the sensor is installed, placed in a tube made of plastic material. The final stage of all work is checking the quality of their execution. Using a tester, you need to make sure that the cable resistance indicator fully corresponds to the values stated in the passport. Everything is ready, you can proceed to the screed device.
Before connecting the underfloor heating system to electricity, make sure that the screed has completely hardened. As soon as the floor covering has gained sufficient hardness, the wires of the heating elements and the sensor are connected to electrical wiring, which powers the entire system, everything is output to the thermostat and fixed screw terminals. This stage is considered the most difficult, and it is recommended to entrust it to professional craftsmen. Otherwise, it will be better if, before performing this work step, you find a video on the Internet showing how to connect a heated floor to a thermostat.
Thermal mats
The connection diagram for such an electric underfloor heating system to a thermostat is not complicated. The installation principle is similar to that of cable heating. So let's just talk about the differences that will arise when the work is completed.
As you know, thermal mats are represented by thin heating cables fixed on a heat-resistant film. Since the installation step has already been determined, it remains to clarify the area over which the system should be placed, having previously calculated its specific power indicator.
Before connecting the film heated floor, the film with the cable attached to it is laid out on a concrete surface, a thin screed is poured or a layer of tile adhesive is applied, covered with the material chosen for finishing surfaces. The thermal insulation layer is not used in this case, because it can cause overheating of the entire system.
The thickness of the entire structure will not exceed one and a half centimeters, so a recess will have to be provided in the floor to place the sensor.
If, during the process of connecting the film heated floor to the thermostat, the cold ends are not enough, you can cut out part of the cable from the mat. The coupling is placed in the screed.
Since a heat mat is a type of heating cable, the installation of these two systems is almost identical. The difference is that the mats are installed easily and quickly. The absence of the need to install a thermal insulation layer and a thin screed create certain benefits. The cost of such a floor will be lower due to the reduction in the need for materials and working volumes. Another plus is that the system is better suited for rooms that have restrictions on increasing the thickness of the floor.
Film floors
This is a relatively new type of underfloor heating, for the manufacture of which a heating film is used. Before connecting such a system, it is recommended to study its structure. The composition includes heating elements sealed in a thin heat-resistant material. A copper conductor runs along the edge of the film material, which must be connected to the electrical network.
Connect the film floor according to the standard connection diagram for warm mats. The difference is that a special substrate is used, spread over the entire surface. Its role is played by a material with a foil surface capable of reflecting infrared radiation, directing it into a heated room.
The sensor is placed in a plastic tube in a specially prepared recess. There is an option for mounting this device on the surface of the film itself.
When connecting an infrared heated floor to a thermostat, the film can be cut into pieces. The cuts are made along special lines marked by the manufacturer. They are applied in increments of 20 - 30 cm. The current-conducting strips are insulated on only one edge, the second remains open, because this is where the floor-mounted IR system is connected to the power wiring.
Film sheets are laid out and connected to each other using a parallel method. Finally, one wire from the pair is connected to the adjacent sheet, and with the help of the second, the infrared heated floor is connected to the thermostat.
The peculiarity of such a warm floor is that it is suitable for almost all types of coatings, among which laminate is popular. It is not recommended to lay carpet on top, as the likelihood of damage to the film material from the pressure created on the floor increases.
Common connection errors
Typical diagrams may vary slightly depending on the model and type of thermostat. To prevent errors during the installation process, each contact is registered on the body of the device.
Slight differences in connection may be dictated by the characteristics of the heating system cables. According to the structure and number of cores, they can be single-core or double-core, which creates nuances when connecting.
A two-core cable has a pair of current-carrying conductors under its sheath. This type is considered more convenient than with one core, because it is connected to the thermostat from one end.
The connection diagram looks like this: there are three wires in a two-core cable. Current flows through the brown and blue wires, and the yellow-green wire acts as grounding. Wires of brown and blue shades are brought to the contact, green is connected to the “ground”.
Let's see how to connect a single-core cable of a heated floor system to a thermostat. In this case, the white wire is considered to be the current conductor. The second (green) is used for the grounding device.
The connection diagram for a single-core underfloor heating cable to a thermostat is as follows: white wires are connected to two adjacent contacts of the thermostat - two ends of a single-core cable. The third wire has a green ground wire.
You are convinced that connecting the thermostat is easy. The schemes are simple and do not require any special skills. You should strictly follow the manufacturer's recommendations and observe the safety requirements for working with electrical equipment during operation. The main condition that must be strictly observed is disconnection before connecting the circuit breaker.
A thermostat for underfloor heating is a special-purpose device that allows you to control and regulate the degree of heating of the floor and air in the room. Basically, every room where underfloor heating is installed is equipped with a thermostat.
The thermostat serves as a guarantee of maintaining the desired temperature in the room. However, manufacturers successfully produce multi-channel devices, in which each channel is responsible for maintaining the heating of its own zone.
The main purpose of the device is to maintain a given temperature, which is expressed in the process of performing it functional responsibilities, namely:
- Turning heating on and off based on changes in the temperature of the floor covering (possibly taking into account the air temperature in the apartment).
- Activating Economy Heating Mode at night or during periods of absence of property owners.
- Connecting or disconnecting the system in a given period of time.
Connecting thermostats to electric heated floors
connection diagram This type of floor implies the presence of heating elements in the form of infrared films or cables, which have high resistance and gradually heat up.
Step by step connection guide:
- First thing The location where the thermostat will be located is determined.
- We draw up a connection diagram.
- Let's think about the layout of all the elements. It is recommended to carry out installation in places with access to wires, since the operating process of the system requires a voltage of 220 V.
- Laying down warm material , you should first consider where the temperature sensor will be placed, since its installation is impossible under furniture or in minimal proximity to the regulator. Using infrared film involves installing the sensor on the reverse side.
- After completing the floor installation process You can start installing the thermostat. In a pre-selected location, you should make a recess in the wall for built-in devices or make markings on the wall surface when installing an external device.
- We compare the switched type of power regulator with the power level of the heating elements. If the indicator is significantly lower, you should install a specialized magnetic starter, which is designed to carry out the work process in a 220 V network.
- Let's start connecting the wires into a single chain. The connection diagram must be located on the device body. By following all the rules and advice, anyone can assemble wires into a single circuit.
- At the end you should connect to the power supply and check the functionality of the entire system. It is recommended to carry out an inspection before the floor covering is completely laid, which will allow you to quickly fix it if a problem is detected and easily access the heating elements at the right time.
Connecting a thermostat to a water-heated floor
connection diagram Despite the fact that installing a thermostat for hydronic flooring is not a requirement, many homeowners still install it. This allows you to control the level of warm water flow into the system.
The device can be selected either mechanical or electronic. Given the predominance high degree inertia, it is recommended to purchase air temperature sensors.
Step by step guide:
- First of all We are installing a temperature sensor. The surface of the wall on which the sensor is located must under no circumstances be heated. This may disrupt the overall system workflow. The best option will be placing the sensor as close as possible to the thermostat.
- Directly in the heating system a specialized servo drive is being installed. Technical device is responsible for supplying warm water pressure passing into the circuits.
- All wires available should be connected in one chain.
- Set up all elements.
- Upon completion of installation you should connect to the network and check the functionality of the entire structure. To do this, it is necessary to take measurements (about 90-120 minutes) with an ordinary thermometer in the place where the sensor is installed. Proper work should completely exclude fluctuations in indicators or their significant differences.
- Working with electricity should be carried out only after the circuit has been de-energized, which will guarantee safety.
Advantages and disadvantages
Like any other device, a floor heating thermostat has a number of advantages and disadvantages.
Among the main advantages of the device are:
- Ease of control.
- Affordable pricing policy.
- Cost savings to pay for electricity.
- Ergonomic qualities of the device.
- Ease of implementation installations.
- Availability of opportunity automatically configure the system for turning on and off the heated floor.
- Availability of opportunity regulate the temperature.
- High quality equipment.
- Reliability regulator
- Installed functional memory, which ensures that the settings are saved in the event of a power outage.
The device has practically no disadvantages. The main disadvantage is the complexity of functional programming of the settings system. However, having figured it out once during installation, there will be no further difficulties.
Each type of floor has its own type of thermostat.
Types of thermostats
Thermostats are divided into the following types:
Mechanical
A fairly simple, uncomplicated type of device, which is produced in a built-in type housing with a rotary switch located on the front side.
To control, you need to turn the switch in a circle. Some manufacturers equip the device with several “stages” of regulation. They are indicated by bullet or numeric lists. The functional process is designed exclusively for manual switching on and off. Energy cost savings are virtually non-existent or minimal.
Digital
Quite popular modern look thermostat. Makes it possible to carry out regulation at the most precise level. Available in the form of a surface-mounted design (or built-in) with push-button or touch system input.
The digital display provides for setting the desired temperature with a minimum degree of error. As an addition, it is possible to have an automatic shutdown and set the power supply several degrees lower, which will significantly save energy costs.
Programmable
An expensive but significantly effective device, which is available both as a small built-in type and as a large panel with a sensitive touch screen.
Makes it possible to set the most precise settings for the working process of heated floors. To do this, enter the desired work schedule for the time period. The operating process of the device allows you to save a significant level of energy costs.
Combined
It resembles a simple regulator unit with an external control system (external remote control). The mechanical device provides for manual switching on and off of the power supply.
The setting, which implies the presence of an external control panel, makes it possible to bypass the rough installation of the structure on the wall surface. This is an additional advantage when unique design premises.
Temperature change sensor
The ordinary type of thermostat is equipped with a single sensor, which is used to measure the temperature of the floors. However, as practice shows, this is far from the most effective option.
Considering the various conditions for using a heated floor heating system, it is better to use much more complex circuit temperature control.
In cases where the heating of the room is carried out exclusively from underfloor heating, it is recommended to control the temperature regime using air heating sensors.
If the room uses flooring in the form of parquet, linoleum or, then the possibility of overheating should be excluded in advance, namely, avoiding a temperature increase above 25 degrees. In this case, it is more advisable to purchase and install a sensor designed to measure the difference in floor temperatures.
Regulators are divided into the following types (according to sensors):
- With a built-in sensor, which measures temperature conditions.
- With the ability to connect an external type sensor, which will control the temperature.
Devices that are designed to connect several sensors are used as the main type of room heating. By purchasing a digital type of device, you can easily control the temperature of floor coverings.
- It is necessary to have a normal cross-section of the thermostat cable. If there is wiring from the old days, it is much safer to install a separate line that will come from a specially designated machine.
- When using a thermostat to heat several rooms at the same time, it should be remembered that temperature control will only be possible in the room where the sensor is located. For this reason, problems with temperature changes are possible.
- It is strictly not recommended to use one regulator in rooms with opposite operating conditions (or with a large temperature difference). It will become impossible to achieve the desired heating in all rooms.
- The best option would be to use a separate thermostat for each room with heated floors.
Among the various methods of heating rooms, so-called heated floors have recently become especially popular. Moreover, this is not just another fashion trend, but a completely rational and practical solution, especially for electric options. After all proper insulation premises, installation and connection of the heated floor to the thermostat, as well as its adjustment will provide high-quality, safe and economical heating.
Thermostat will help save energy
Warm floor
The main function of such heating floors is to heat the floor and/or room itself. There are two types of such heaters: water and electric. The first involves laying pipes into the base of the floor, along which warm water. This is a cheaper and not entirely safe option, since if the pipes are damaged, not only will you have to remove the entire coating in order to repair the leak, but there is also a very real risk of ruining the repair completely.
As for the electric variation, everything is much more favorable here, although the cost of such a heating project will be more expensive. However, the costs will quickly pay off, because such a system:
- safe;
- very convenient;
- economical;
- In the event of a breakdown, repairs are much easier.
Some people fear that electric heating options use a lot of electricity, but this is not the case. After all, it is worth considering that the main expense is only for warming up. Further, electricity is required only to maintain the set temperature. And a high-quality and competently installed and configured heater will not be a very greedy consumer.
A mixed type of heating will allow you to further reduce electricity consumption, that is, when there is both a heated floor and main heating in the room. Although without the latter, energy consumption will not become a big problem.
In this video you will learn how to connect a cable heated floor to a thermostat:
Features of the device and installation
Despite the apparent complexity of installing heated floors, in reality it is extremely simple, as is the installation itself. The basis of its operation is the conversion of electricity into heat through a conductor having high resistance. This can be a cable or mat that connects to a 220 volt network. The thermostat monitors the degree of heating and temperature.
The thermostat will help maintain the required temperature without overheating the floor
The selected conductor is laid on foil, which is covered with a rough screed 1 cm thick. Under it, in turn, there is a heat insulator, which can be placed directly on the ceiling. The wire itself is secured using a special mounting tape and connected to the thermostat. A temperature sensor is also attached to it, which will record the degree of heating.
After laying and securing, you can apply a basic screed with a thickness of 2 to 5 cm, on which the finishing coating will subsequently be laid. When choosing it, you should pay attention to the admissibility of use with the “warm floor” system.
Thus, the floor heating device includes:
- heater;
- temperature sensor.
All installation and adjustment work can be carried out even by a person who does not have special knowledge in this area.
Purpose of thermostats
Depending on the purpose of the room, it can be different, but not higher than +27°C. Although in some cases, when heating large rooms, heating up to +33°C is allowed.
Even a novice specialist can connect the thermostat There may be several main reasons for maintaining the temperature within such limits:
- Providing comfortable conditions for a person, because when the floor is heated above +27°C, the sensations for the feet can be far from pleasant.
- Floor covering also requires maintaining certain temperatures, failure to comply with which can lead to various unpleasant moments - deformation, drying out, divergence of seams.
- And the constant unregulated operation of the heating element will result in a significant waste of electricity.
It is in order for the temperature to be maintained within certain parameters that electric underfloor heating systems are equipped with thermostats. Moreover, the scheme for connecting a heated floor to a thermostat is quite simple and will not cause problems even for a person who is faced with such a need for the first time. This is clearly visible in the figure.
Connection diagram of the floor to the thermostat
Types of temperature controllers
Thermostats for such heaters are made to be quite compact (no larger than a light switch) and aesthetically pleasing. At the same time, there are models both built-in and overhead, as well as for installation on a DIN rail. Some of them are equipped with a built-in sensor. Such options are preferable when the heating floor is the main source of heat, although they also have connectors for connecting an external temperature sensor. In other cases, a remote resistance thermometer is required.
In addition, thermostats can be divided into three conditional groups:
- Electromechanical ones are the simplest and cheapest prototypes, which are based on a mechanical principle of operation with an electrical component. Such regulators have few functions and settings: an on/off key, a wheel or knob for setting the temperature, and an LED indicating whether heating is currently occurring.
- Electronic ones are almost no different from the previous ones, except that they are equipped with a digital display and, therefore, electronic sensor temperature. Their adjustment accuracy is better, but the cost is higher.
- “Smart” thermostats are the most preferable option. These are truly “smart” and functional programmers, capable of not only maintaining a given temperature, but also allowing you to set the mode in a convenient way. So, they can turn on and off themselves at a given time, and lower the temperature at night. Moreover, the program allows you to change the temperature not only depending on the time of day, but also to adapt to the wishes of the owner. Let’s say that in the morning the floor warms up, and when you leave the house, the minimum temperature will be maintained, and by the time the owner returns, the floor (and the room) will be heated to a comfortable level. On weekends, the regulator will operate according to a different specified algorithm. This is not only convenient, but also allows you to save a lot of energy. Some models can be equipped with a remote control or even controlled remotely via the Internet or mobile communications.
Most regulators have the ability to monitor the temperature in only one of the rooms, controlling one consumer.
However, models are also produced that are capable of regulating and controlling the temperature in adjacent rooms. For this purpose they are equipped additional inputs for temperature sensors and additional outputs for the heater.
Thermostat connection diagram:
Preparatory work
Before you start connecting the regulator, you need to carry out a series of preparatory actions. First, determine where it will be located, taking into account a number of nuances:
- The device should not be installed where it may be exposed to direct Sun rays, installation in drafts is not recommended. This is especially true for models with a built-in sensor, which will regulate the temperature according to the air flow of the room.
- It is also undesirable to install the regulator on external walls in contact with the street, as this may lead to incorrect readings.
- Installation height of the device - not less than important point. Installation at a height of at least 400 mm is prescribed.
- It is prohibited to install temperature control devices in rooms with high humidity, since almost no model is equipped with a waterproof case. Therefore, if the heated floor is located in a bathroom, shower or bathhouse, then the regulator itself must be moved to the next room, where it will not be exposed to excess moisture.
- The temperature sensor must be located no closer than 500 mm from the wall, in the case of a cable floor model - between the turns in the center. If the film version is used, then the thermometer head is located in the center of the carbon heating strip.
For more convenient and comfortable installation, it is recommended to use an extended 60 mm socket box. This will allow you to freely position all the wires connected to the device.
For heated floors, it is recommended to install a separate dedicated power line with copper cable with a wire cross-section of 2.5 mm, which can easily withstand a load of up to 3.5 kilowatts. Moreover, the line must be equipped with a separate 16 ampere circuit breaker.
Before you start connecting, you need to make a groove from the installation site of the device to the floor. It should fit two corrugated pipes with a diameter of 10 mm. In one of them there will be wires to the “cold ends”, in the other - the temperature sensor line. It is especially useful to place the sensor in a corrugated tube, since they can often fail, and in order not to open the coating every time, it will be enough to simply pull out the old one and just as easily insert a new one.
If the screed is designed to be quite thick (35–50 mm), then the corrugated tubes do not need to be immersed in the groove on the floor. Otherwise, you will have to prepare a corresponding groove here too. The ends of the corrugation should be plugged so that the solution does not get there during the process.
When connecting a thermostat to a film-type heated floor, corrugated tubes are not used, since here the principle of measuring temperature will be different.
Connection diagram
When the floor itself is laid, and that’s all preparatory work completed, you can begin connecting the electric heated floor to the thermostat. This is not difficult to do. As a rule, if you buy a device in a store, it is always accompanied by instructions describing the features, settings and installation. A diagram of how to connect a heated floor to a thermostat is also located on the back of the device.
The connection diagram for a heated floor is simple; even an inexperienced person can figure it out. As can be seen from the figure, the first two contacts are used to connect the 220 volt power supply. In this case, it is highly advisable to connect the phase and neutral as indicated on the device diagram.
Contacts numbered 3 and 4 are intended for connecting directly to the consumer. Here you should be extremely careful, since inexperienced craftsmen often connect the power wires to these terminals, which always leads to failure of the device.
Terminal number 5 (for this example) remains free, but 6 and 7 are used to connect a temperature sensor to them. Here, too, it would be useful to check it first. To do this, use a tester (multimeter) in resistance measurement mode to see what readings the temperature sensor gives. For this example, this value should be 10 kOhm with a possible deviation of 5-10%. If the sensor shows short circuit or other values very different from the specified ones, then it is clearly faulty.
When all the wires are connected, the device is carefully placed in the socket box, which must first be embedded in the wall. After this, all that remains is to check the functionality of the entire system: turn on the power and set the appropriate settings. Now all you have to do is wait until the temperature reaches the set temperature and the regulator turns off the system. Connecting a thermostat to a heated floor is not that difficult; the main thing is to take into account all the nuances and tips, and then get to work with enthusiasm.
In this video you will learn how to connect a thermostat:
A thermostat or programmer can be connected. These devices help to automatically regulate the temperature in the house or turn the boiler on and off at a given time.
Mechanically controlled boilers do not have the ability to connect an electronic thermostat.
Most often there is a need to maintain the required air temperature in a room without human intervention. A room thermostat is used for this purpose. In the article we will talk about the operating principle of this device and explain how to connect a thermostat to a gas boiler.
Benefits of using the device
If we already talk about the advantages, then we will describe the difference between the operation of a boiler with and without a thermostat.
Without thermostat
How does the boiler operate in normal mode? We set the desired temperature with the control knob and enjoy the warmth. But what happens when it gets cold outside? The temperature in the room also drops. It didn’t seem to be a big deal - I went and set the boiler to a different temperature setting. It became hot - reduced it, and the boiler continues to work, turning on and off.
With thermostat
Now let's imagine how a boiler works with an electronic thermostat connected to it. The boiler will heat the coolant until the room temperature reaches the set temperature and only then turn off. It will not turn on until the air temperature drops below the set limit. Then the process is repeated again.
Advantages
By installing even the most primitive thermostat, you can save from 15 to 30% of gas.
The automation of the room heating process itself is already a significant advantage, but some other points can be highlighted:
- The boiler will not turn on if during the daytime the sun's rays warm the room and maintain the desired temperature.
- There are many people in the room and because of them the air temperature does not drop.
- The boiler automation wears out less, as switching on occurs less frequently.
- There is no large temperature difference in the room, since the minimum thermostat threshold can be 0.25°C.
- Ability to change settings.
- After turning off the boiler circulation pump It works for some time, preventing boiling of the coolant, and does not turn on until the boiler starts working.
- Anyone can handle the settings.
If we talk about the disadvantages, we can highlight only one - in a wireless thermostat you need to periodically change the batteries, a supply of which should always be on hand.
Even this brief overview This is enough to understand that purchasing and installing a thermostat is a wise investment that will more than pay for itself in a short period of time.
Device selection
The choice of device must be approached intelligently. Often people buy a device with a considerable number of options that they then never use. What to consider? Let's look at this in more detail.
A remote thermostat can be wired or wireless.
- The presence of a wire eliminates the need for batteries, but such a connection will bring a lot of other problems when the device needs to be installed in an adjacent room. Do not lay the wire along the wall or drill a through hole for it. The best decision for a room after renovation (or if there are no plans to carry out renovations there in the near future).
- The wireless sensor not only does not require connection, but can also be moved to any other room. Even before purchasing, it is important to know the range of the device and how it works through walls. For example, some cheap sensors work reliably only in the line of sight, but if the situation changes or if they are far away, they may lose the ability to transmit a signal to a module installed near the boiler.
- Purchasing a device from the same company that manufactured the boiler will help you avoid some connection problems.
As already mentioned, it would be good if the device was purchased for an installed boiler from the same manufacturer. The most successful combination was achieved by the famous brands Baxi (baxi), Protherm (Proterm) and Vaillant (Vailant). In the illustrations below you can see the variety of these devices.
Adjustment method
Controls can be:
- in the form of buttons, and all data is displayed on an electronic display;
- Mechanical control implies the presence of a regulator with indicators printed on it.
Functions
Thermostats can be simple or multifunctional.
- Simple device can only maintain the room temperature preset in its settings.
- Programmable thermostat has a rich set of functions. It can be configured by changing the boiler parameters remotely, setting the desired temperature conditions in different time days. You can also set settings for each day of the week.
- Thermostat with integrated hydrostat function will allow you to control, maintain and change the microclimate of the room by changing the humidity level.
About the manufacturers
Thermal sensors from IMIT and Siemens are very popular. They differ not only in functionality, but also in the connection method. It is quite clear that more functional models are more expensive. To make it more clear, we made a comparative analysis, the results of which you can see in the table below.
The cost of the product is given in rubles, but only for comparative analysis. Since prices are constantly changing, at the time of purchase, accurate data can be obtained on the manufacturer’s website or from the sales company.
Installation and connection
And now, when the equipment has been selected and purchased, you can begin to install it. First, let's look at recommendations for sensor placement.
Choosing a location for the sensor
The correct and efficient operation of the entire heating system depends on where the sensor is placed, so the following rules must be taken into account:
- The recommended installation of the sensor above the floor is 1.5 m. We all know that the room is heated unevenly with any heating system, be it classical system or heated floor. If you neglect this rule, the sensor will control the boiler in a different temperature mode.
- It is not recommended to attach the sensor to external wall, since it is always colder than the walls inside the room.
- The sensor does not need to be installed in a remote place or hidden behind any objects - air should circulate freely near it. But you need to beware of the other extreme - the device should not be in the area of drafts.
- The place for installing the device should not be near heating devices or near the air conditioner, windows and entrance doors. It should not be exposed to direct sunlight.
Such an abundance of restrictions and regulations may seem too much, but in fact there is nothing complicated here, you just need to remember this when choosing a location for the thermostat sensor.
First of all, you need to disconnect the boiler from the power supply in order to protect yourself and the boiler electronics when performing work.
If the control unit will be installed inside the boiler, then you need to find a appropriate place. If there is such a need, you can use an installation box to mount the unit.
In order to connect the control unit to the boiler, you do not need special knowledge, but you will have to understand the circuit.
The red arrow shows the current path through the circuit. Entering pin L, it passes along the board and leaves it through pin Tb2, in which a jumper is installed connecting it to pin Tb1. Through this contact, the current returns to the board and controls the operation of the boiler, turning it on or off.
Now you need to download the diagram of your boiler from the Internet and check whether it has the ability to connect a thermostat. If you find the inscription “Room thermostat” on it (in different models boilers, the name may be slightly different), which means it is possible to connect a thermostat.
If you have a floor-standing boiler, then this check must be performed before purchasing a thermostat.
Let's return to the jumper installed between contacts Tb1 and Tb2. In many boilers it is located on a separate block (photo above), but in some models you will have to look for it on the board.
Having unscrewed the screws holding the jumper, you need to pull it out, and instead screw in a 0.75 m 2 wire that will connect the boiler board to the thermostat control unit (or to a wired thermostat). As you can see, in the diagram the thermostat contacts are open.
According to the thermostat circuit, we need a pair of normally open contacts - these are COM and NO. Usually this is the marking that is present on the connected unit.
If the block has different markings or is missing at all, then the contacts can be checked with a tester. One electrode is pressed against the middle contact, and the side ones are checked in turn with the second. We need a pair of open contacts.
Depending on the design, the unit is connected to the network or batteries are inserted into it.
Adjustment
You need to check how the thermostat behaves. To do this, certain parameters are set on it, and see how the boiler reacts to the commands sent by the thermostat. If everything is in order, then you can perform the final setup. How to do this is described in the product data sheet.
To ensure that the system works correctly and without failure, take into account the following recommendations:
- If you work shifts, it is better to purchase a programmable thermostat and adjust it so that the minimum permissible temperature in the room is maintained during your absence.
- When going on vacation or leaving home for a long time, switch the heating to economical mode and, just in case, install fresh batteries in the device.
- Don't wait until the batteries become unusable - change them early.
- Connect the boiler and control unit through the stabilizer.
Epilogue
A thermostat will make your life easier, and by installing it yourself, you will save a lot and will know what to do with it if it breaks. We hope this article serves as a good guide for you.
Video
This video shows how to connect a room thermostat or programmer to the boiler:
Watch a video about installing the T-Control thermostat-programmer for working together with an Ariston gas boiler:
