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Thermal sensor for heated floors. Installation of sensors for heated floors. Types and types of devices with sensors

A modern solution for installing heated floors allows you to solve a number of problems related to heating. However, for normal operation underfloor heating, it is necessary to fully equip it with modern equipment, which includes a heated floor sensor. The temperature sensor allows you to ensure the correct operation of the entire heating cake. This device is especially necessary when installing electric heating. So, its installation not only controls the temperature level, but also saves money on electricity. In this article we will tell you about all the features of this device, as well as how to install and connect it correctly.

Species

The temperature of the underfloor heating is controlled by a thermostat. And it just connects to it temperature sensor. First of all, this device is necessary if linoleum, parquet, laminate and similar coverings are laid on top of the electric heated floor.

The heated floor temperature sensor has a simple operating principle. It is located directly next to the heating element. So, it measures the temperature of the heating element and sends a signal to the thermostat, which, in turn, gives signals to turn the heating off and on. The entire system is automated, and the degree of error in the temperature sensor reading is very small.

This device comes in two types:

1. Outdoor.
2. Internal.

In the first case, the temperature sensor measures the air temperature in the room where the heating element is placed on the floor. In this case, the device is located close to the laid heated floor. There are thermostat models in which this sensor is already built-in. As for the internal, this means an element that is placed in the body of the screed, directly next to the heating channel of the underfloor heating.

Moreover, the temperature sensor is classified according to its installation under a particular coating:

• For soft surfaces. In this case, the device is a plastic cylinder with a wire. It is placed under linoleum, parquet, laminate.
• For hard surfaces. Considering that the sensor is placed in concrete, under tiles, artificial/natural stone, it is equipped with a special protective shell.

Today there are a number of manufacturers of this device, we invite you to consider the technical characteristics of the “Devi” heated floor sensor.

"Devi" - a new generation sensor

The Devi temperature sensor is manufactured in Denmark. On modern market You can find many models of this device. Let’s compare some models of the “Devi” device.

Electronic temperature device “Devireg D 130”. This is an overhead device. Has a voltage in the region of 180-250 V at 50/60 Hz. The device can operate at constant and active loads up to 16A. The sensor itself is placed directly into the body of the screed. Has a temperature adjustment range from +5 to +45°C. The LED acts as an indicator. Protection degree IP31. The unit has the following dimensions - 85x85x47 mm.

Programmable temperature device "Devireg 535 ELKO". This model is presented on the market both surface-mounted and built-in. This allows for the most convenient installation. Maintains power supply voltage within the range of 180-250 V at 50/60 Hz. The device can operate with a constant and active load of 16A. The temperature range for the floor is from +5 to +45°C, and for the air from +5 to +35°C. The device has a display where the temperature sensor measurements are visible. Protection degree IP31. The device itself has the same dimensions - 85x85x47 mm, as the previous model.

Programmable temperature device "Devireg Tiuch". This is a built-in device. Maintains power supply voltage within the limits of 220-240 V at 50/60 Hz. It is capable of handling active loads up to 16A. As for the range of temperature adjustment, for the floor this indicator ranges from +5 to +45°C, and for air from +5 to +35°C. The device is equipped with a touch screen to control the temperature sensor. A very convenient solution. Protection degree IP21. The device itself has the following dimensions - 67 × 67 × 22 mm.

As you can see, certain models have slight differences, but they are all different high quality and job stability.

Installation features

As already mentioned, the temperature sensor of the heated floor is installed directly next to the heating element. And at a short distance from the thermostat. The sensor itself is placed between the heating circuits. The distance should be equal on both sides. The device must be secured with a special tape. Additionally, the device and wire are placed in a special corrugated tube.

Important! Be sure to seal the tube securely to prevent debris, dust, and solution from getting into it. The other end corrugated tube goes to the thermostat. The tube itself is laid in a hidden way in the floor and wall.

Connection

There are two known methods for connecting a heated floor temperature sensor. This can be done using a junction box. That is, the wire from the device is directed first to the thermostat, from it to the junction box and further into the body of the screed. You can also connect directly. The last option is simpler and faster.

To connect the thermostat, it is recommended to draw an individual line from the electrical panel. Also, this line should be equipped with an individual RCD. Used as wiring copper cable cross section 2.5 mm 2. The wire runs from the shield to the thermostat. Additionally you can install junction box. As mentioned above, from the thermostat the wire from the temperature sensor is lowered into a corrugated tie. Nearby there will be a second corrugation, in which there is a heated floor cable.

Advice! After laying the heating circuits and the temperature measuring device, you can perform the screed. However, be extremely careful not to damage the heating elements and the sensor itself when pouring the screed.

What if the sensor is not installed

What if, after reading this article, you realized that you made a mistake and did not place a temperature sensor in the body of the screed? Don't be upset. There is a way out of this situation. For example, you can get out of this situation by installing an air sensor. However, excellent results can only be achieved if the power of the heating circuit is equal to 170 W/m2. That is, this is relevant in all cases where electric underfloor heating is the main heating system in the house.

Among other things, there is another way to implement the same device. But this will require surgical precision. You will need to make a groove in the floor and wall to install the unit. But remember, one extra movement and there is a risk of damaging the heating circuit. As a result, its repair can be very expensive.

Conclusion

So, here we have looked at the features of how a temperature sensor is used. As we have seen, this device is simply necessary when installing a heated floor. Thanks to its presence, the entire underfloor heating system will operate correctly, and a pleasant atmosphere and microclimate will be maintained in your home at any time of the year.

A temperature sensor is required for normal functioning warm floor. To ensure the smooth operation of this system, it is important to choose the right device.

Peculiarities

The basis for arranging a heated floor is the heating elements of the structure and an automation system consisting of a temperature sensor and a regulator. The sensor is designed to measure the temperature of an object and transmit data to the control unit.

The sensor for the heated floor thermostat should be selected based on the characteristics of the automation unit.

Required condition When choosing a temperature sensor, it is important to follow the manufacturer's recommendations.

More complex systems Heated floor regulators include several sensors. An example of such a thermostat is one that measures temperature at several points. These measurement points are usually the body of the floor heater, the ambient air in the room and the temperature outside the room. The operating principle of such an automation unit is based on comparing measured temperatures, as a result of which the specified floor mode is maintained.

Systems that have more advanced methods of underfloor heating include electric heaters with liquid coolant. Such systems are considered ideal for installing heated floors.

Electric heating systems with liquid coolant have uniform heat distribution, smooth temperature changes, and are flexibly configured and regulated. A thermostat with an electric heater and a coolant liquid must include a thermostat. When combined with a thermal head, a thermostat allows you to more accurately regulate the floor temperature.

How to choose?

When choosing temperature controller sensors, you should follow the recommendations of the temperature controller manufacturers. In addition, when choosing sensors, you should pay attention to its purpose. So, if it is designed to measure floor temperature, it cannot be connected in place of a temperature sensor to measure the air temperature in the room, and vice versa.

You also need to take into account the features of the sensor. For example, device intended for indoor installation, should not be installed in open space.

When choosing, we must not forget that the measurement error can be influenced by external factors.

Sensors whose measurement error will be affected by drafts, infrared radiation, must be protected from such influences. Sensors without protection from these influences must be protected artificially or installed inside structures.

The floor heating thermostat sensor is a thermal resistance with connected copper conductors. The manufacturer usually supplies sensors with short wires.

The conductors from the temperature sensor to the thermostat can be lengthened or shortened. Extension of the conductors from the temperature sensor to the regulator is allowed up to 50 m. When extending the wire, remember that the longer it is, the greater the error in temperature measurement will be.

During the installation of the temperature sensor, it must be placed in an insulated corrugation, which is usually included with the product. In addition to protection, the corrugation is also necessary for subsequent removal in the event of sensor failure.

Its use is mandatory, and if it is not included in the kit, it must be purchased separately, following the manufacturer’s recommendations.

Having chosen a warm floor with water heating, use a thermal head with an external sensor. It is designed to control heating elements and maintain the coolant temperature within specified limits in automatic mode. It is selected according to the manufacturer’s recommendations heating elements.

In addition to thermal heads with remote sensors, the systems use submersible sensors. They allow you to control the temperature of the coolant.

Installation and use

Before installing thermostat sensors and a heated floor thermostat, it is important to read the heating system manufacturer’s instructions and the principle of their operation. An important condition For successful work system is the correct placement of the temperature sensor. It and the wires leading to it must be placed in a groove using corrugation.

It is recommended to place the temperature sensors directly in the body of the structure at an equal distance from adjacent heating elements. The corrugated pipe should be laid with smooth turns and transitions. This will help if the sensor is broken. Replacing a damaged device if you follow these recommendations will be greatly simplified.

As a recommendation, you can listen to the advice of using a trimmer cord. Having secured the sensor and supply wires to such a fishing line, it is quite easy to insert the sensor into the corrugated pipe. Removing it with wires will be just as easy in case of breakdown.

Let's look at typical mistakes when installing floor heating sensors. The most difficult thing is when you forgot to install the sensor, and the floor screed is already finished. In this case, if you are confident in knowing the exact location of the heating elements, you can make a groove along the floor and install a sensor. The second way out of this situation is to install an external device to measure the room temperature.

It should be remembered that there are sensors that have polarity. Such sensors should be connected strictly according to the diagram specified in the instructions.

For remote sensors, when installing underfloor heating with water heating, the main condition is the location of the temperature sensor at a distance from heating elements and pipelines with coolant. Such sensors, like all others, should be protected from drafts, direct sun rays and infrared radiation.

The underfloor heating control system includes a temperature sensor and a thermostat. If the manufacturer's recommendations for selecting heating system elements are followed, then the setting is reduced to setting the desired temperature.

The control system, which includes a programmable thermostat, has a more complex setup. In the latter case, the settings may include switching time, setting the temperature of individual heating zones and other parameters.

Verification consists of monitoring and maintaining a given temperature regime.

Manufacturers

From the variety of manufacturers of equipment for heated floors, we will analyze the advantages of products from well-known brands. Let us note the advantages when choosing a brand of such brands:

• Legrand;
• Spyheat;
• Tech;
• Heiz.

The Legrand company has been operating for a long time and specializes in the production of electrical devices, materials, and equipment. It has established itself as a manufacturer of reliable and high-quality products.

Programmable thermostats and thermostats manufactured by Legrand have installation features. Thus, if desired, you can select equipment for installation in seats switches or sockets. In this case, you can install the equipment both on the wall and in the panel. Due to the quality and reliability, Legrand products have an increased cost.

The manufacturing company Spyheat specializes in the production ready-made kits underfloor heating and other heating systems. The advantages of the company include the fact that the company produces ready-made systems warm floor with all components. Since the company specializes in heated floors using heating cables, these products will be a budget option.

Heiz specializes in heating systems based on liquid coolants. Thermostatic heads with remote sensors are needed to stabilize the room temperature. Heiz devices are distinguished by high reliability and accuracy of temperature control. This company provides a 5-year warranty on its products. The temperature sensor is capable of maintaining temperature with an accuracy of one degree. The manufacturer guarantees the sensitivity of the temperature sensor within 0.5 degrees.

Many underfloor heating manufacturers use and recommend controllers and sensors manufactured by Tech. One of important factors In favor of this product is the fact that the company produces both equipment for space heating and high-power boiler houses.

Tech sensors and thermostats are popular among manufacturers of heating systems, including underfloor heating kits. The reliability and quality of Tech's products is evidenced by its partnership with many manufacturers of heating systems. It would be useful to add to the advantages of the product the absence of reviews about malfunctions of its devices.

Which one is better?

This question can be answered after a thorough analysis of all the conditions for using the heating system.

The decisive parameters for choosing a system or equipment manufacturer are the design of the room. In this case, you also need to take into account the structural design of the building where the room for installing the heated floor will be located.

In order to decide on the type of heated floor, you should start from the price of electricity and coolant. The price consists of the supplier's prices for central heating or determined by the price of fuel used to heat a given room.

To subsequently select a manufacturer of equipment that will be used in the installation of heated floors, you should focus on the price-quality ratio. In this case, the customer will independently choose the set of functions that he needs.

Home heating installation warm floors, in our climate is becoming increasingly popular. This system must have a thermostat for a water heated floor, since such a heating system is very demanding on the degree of heating.

Regardless of whether heating using a water floor is the main or auxiliary method of maintaining acceptable temperature conditions in the room, it is subject to specific requirements.

The fact is that it must have a limited maximum temperature. In any room there is always dust and it is located, in accordance with the laws of physics, on the floor. It has been established that when the surface of a heated floor is heated, convection currents of heated air are formed.

If the heating exceeds 30 degrees Celsius, then air currents raise dust, and we have to breathe it. This circumstance does not have a favorable effect on the general condition of the human body, as a result of which thermostats began to be used to maintain the desired temperature.

To control the temperature regime, a thermostat for the water floor is connected, which belongs to the control devices.

Device and principle of operation

The comfort of staying indoors largely depends on the heating system used. Control over the temperature of a water heated floor is carried out using special devices - thermostats.

Many designs of such systems are used, but in most cases they use only a few fundamentally different adjustment methods.

Watch video - setup process

But, before considering the operating principle and design of thermostats, you need to understand the object of regulation.

What is heating wiring

Heating of the room with a water floor can be carried out in various ways. One of them is the use of heat from heated water, which acts as a coolant. The transmission is carried out through pipes. Previously, heating was mainly used steel pipes, now they have been replaced by modern ones made of plastic materials.

The heating circuit can be located along the walls in the form of radiators, or it can be located under the surface of the floor, heating it and the air in the room.

Hot water or antifreeze is heated in the boiler, after which, using circulation pump supplied to the heating circuit of the water floor.

Passing through its pipes, the coolant transfers heat into the closed surrounding space, heating the surface. The cooled liquid is returned to the boiler system. Depending on the temperature of the “return” in the mixing unit, it is heated or cooled by mixing more cold water from the tank.

And this is where a thermostat is installed, reacting to the amount of heating of the return flow and giving a command to perform one or another action.

In circuits with heated floors, which are connected by a separate circuit, a thermostat is installed for each of them, since they all have their own thermal regime. And the contours radiator heating heat up to a temperature almost twice as high as for a heated floor.

How does the principle of temperature control work?

The main elements of heating control are servos, temperature sensors and thermostats. This composition of the equipment allows the temperature of the water heated floor to be adjusted steplessly in continuous automatic mode. This happens as follows:

1. If a signal about insufficient temperature is received from the temperature sensor, the servo drive opens the valve and more hot water enters the heating circuit.
2. When the coolant overheats, the cooled water mixing valve opens, reducing the degree of heating in the circuit.
3. However, adjustment is also possible manual mode by placing the tap in a certain position. But this method requires constant visual monitoring, since the factors on which the heating mode depends change repeatedly during the day. Despite the relative cheapness of such devices, they are very inconvenient to use, since each condition in the room requires intervention in the heating operation.

Adjustment options

Watch video - adjusting the power of the temperature sensor unit

Thermostats in the heating system can regulate following parameters:

1. The degree of heating of the floor covering. In this case, the heating sensor is installed in close proximity to it. This type of floor heating device is best suited for small rooms and low-power heating circuits, which are used only as auxiliary ones, in particular for heated floors.
2. Room air temperature - with this control scheme, sensors are used that are mounted directly in the thermostat housing. Correct operation of such a device can only be achieved if all the requirements for insulation of the heated building are met. Otherwise efficient work heating is difficult to achieve - significant energy losses are inevitable. A properly built home with an extensive heating system and thermostat can provide up to 30% resource savings.
3. Combined control systems, in which water heated floor temperature sensors are installed both in the heated room and on the mixing unit system. The parameters are adjusted to ensure the most comfortable temperature in the house. Such equipment with a thermostat is used in large rooms. Both sensors or one of them can be used for control.

Types of thermostats

Watch the video - review of sensors for water floors

To create these devices, various principles and constructive solutions. Let's look at them.

Some manufacturers install an open-closed valve on the thermostat. The disadvantage of this device is the need for constant monitoring - it only works in mode manual adjustment.

Some manufacturers allow serious inaccuracies in the calibration of the temperature scale, so it is necessary to additionally check the device using an accurate calibrated thermometer.

1. For a touch-sensitive floor heating temperature controller, control and adjustments are made from the corresponding panel or remote control. These models provide more accurate and reliable heating control, but in some cases these indicators depend on the manufacturer. You should not consider the price of the device as the main selection parameter; in some cases this approach is not justified.

Such a device allows settings for a day, a week, as well as the ability to work in automatic mode with support economy mode during the absence of people in the house. This allows you to save up to a third of your costs on energy resources.

Such devices allow you to automatically maintain the temperature in individual circuits of a complexly branched heating system with water heated floors. The disadvantages of the device include the high cost and complexity of adjustments. Before commissioning, you need to carefully study the instructions for connection, installation and settings; errors lead to failure of a complex, expensive system.

1. Radio-controlled sensors can be considered exclusive due to their high cost. When using them, there are no low-voltage control circuits, since adjustments are made via a radio signal. Each device is equipped with a radio transmitter and a radio receiver for signals that control the operation of the servos. Such devices may be appropriate in luxury cottages to regulate the temperature of a warm water floor if the owners do not want to have bundles of control circuit wires.

How to regulate the temperature in the house - 3 ways and determining the optimal mode

The main task of maintaining temperature conditions is to create comfortable living conditions, subject to optimal use of resources. This can be achieved in several ways.

First one of them is to set the optimal degree of heating of the coolant in the underfloor heating circuits. The second is the complete cessation of its entry into it.

The easiest way is to use pipes with maximum operating temperature 90-95 degrees. This allows you to install a circular pump with a thermostat in the system, as well as a reverse valve.

The installation location of the pump is the return pipe, and the temperature of the coolant in this place is no more than 70-80 degrees Celsius. If the heating of the coolant reaches critical values, the thermostat turns off the pump and the heating goes into standby mode.

As the floor cools, the circulation pump turns on again, supplying a new dose of hot water into the circuit pipeline. Practice shows that this method is the most effective and reliable for stable heating operation with heated floors.

Second way adjusting the degree of heating involves the inclusion of a three-way valve in the system or mixing valve. With this approach, through three way valve chilled water is added from the return to the hot supply. That is, the maximum temperature of hot water from the boiler is reduced by adding cooled water.

If a 3-way valve is used, adjustment can be made manually or via a servo drive. The mixing valve regulates the temperature of the coolant according to a pre-entered control value.

Third way adjusting the heating of the coolant in the home heating system
consists of using a mixing unit. Such a device can be made from the following components:

• 3-way valve;
• circulation pump;
• bypass jumper;
• thermometer;
• thermostatic head;
• maximum temperature control relay.

Considering the composition of the components used, the unit for adjusting the degree of heating in the heating system turns out to be quite expensive.

But the temperature change in it occurs very quickly, because it is produced by mixing water from the return pipe into the main coolant flow. In this case, the combustion intensity in the boiler automatically decreases.

In accordance with the established regulations, the fuel consumption mode is always optimal.
The number of nodes in the combined system can be any, and each will work autonomously in accordance with the established settings.

Thus, it is possible to maintain a higher air temperature, for example, in a children's room and at the same time a lower one in the bedroom of adult members of the family. Such a unit is especially effective for controlling the temperature in the installation of water floors.

To use this method of adjustment there is only one requirement - all heating circuit must be arranged according to European requirements. The temperature of hot water from the boiler should not exceed 67 degrees.

And now we will consider the method of adjusting the thermal and hydraulic conditions using a thermostat. It is installed in a room, and adjustment is made by setting this device to the desired temperature for that particular point. Heating is controlled by a servo drive on a specific circuit.

Watch video

Such a device works successfully in conjunction with a homemade manifold, a three-way valve and a mixing unit. Its popularity is due to the ease of adjusting the heating mode and the relative cheapness of the device.

Connection diagram for thermostat for water heated floors

In conditions apartment building In the city, installing heated floors is an almost impossible task. The point is that low temperature circuit underfloor heating can only be included in the return pipe and often leads to a critical decrease in temperature in the general heating network.

This becomes the reason for refusal to approve changes in the design of heating systems. This issue is much easier to resolve for individual developers, who are complete owners of their own heating system.

Watch the video - functions and differences of thermostats for screed circuits

In them, the hot coolant from the boiler enters the collector and from there is distributed throughout the rooms by separate pipes. Having given off heat in the radiators, the coolant again enters the collector, completing full cycle.

The control equipment in such devices is installed directly on the collector. It controls servos that receive a signal to operate from thermostats.

A temperature control method is also used using a signal from a sensor located directly in the room where the temperature is controlled.

This method is certainly more accurate, but it is associated with greater costs when installing low-voltage control systems. This will require a large amount of wall gating, because such wires will have to be pulled from each heated room.

And some of them have two, when a combined heating circuit with a radiator part and a heated floor system is installed in the room. When installing a thermostat on the manifold, this is no longer necessary, and the end result is the same.

The pipeline for a water heated floor is quite complex in design, and errors in design and installation are costly. Therefore, it is better to entrust such work experienced specialists.

Before connecting the water heated floor thermostat, you need to decide on its location in the heating system.

How to choose thermostats for water heated floors

Modern heating devices are controlled using special thermostats. Being combined with a remote temperature meter, this device controls not only the temperature of the floor surface, but also the degree of heating of the air in the room itself.

After all, in the end, all efforts to create a reliable heating system are aimed at creating comfortable living conditions.

Normal use of a heated floor is almost impossible if control equipment is not used. The thermostat circuit for a water heated floor allows you to effectively maintain its temperature in the required range, allowing you to healthy image life.

There are many models of these devices on the market, which experts conditionally divide into the following categories:

1. Devices that help save energy resources by temporarily turning off the heating system and heated floors in the absence of the owners.
2. Devices with programmable timers that allow you to configure the “smart mode” of the heating system depending on the state of the influencing factors. All adjustments from the timer are transferred to the thermostat, which sets the temperature.

The choice of thermostat directly depends on the size of the heated room. For the room small sizes An inexpensive mechanical device with simple and accessible adjustment is quite sufficient.

But most often used electronic thermostats with programming capability. In this case, the adjustment accuracy is 0.5 degrees.

The liquid crystal display of this device reflects the set surface temperature and its actual value at a given time. In addition, a special symbol is displayed while the heating system is operating. There is also a malfunction indicator in case of malfunction of the thermostat or the heated floor system as a whole.

The heating operation is controlled by pressing three keys located on the front panel of the display.

Watch video - water floor automation

Water heating continues to be the most popular method of heating homes, including private ones. Therefore, its management systems continue to develop and improve.

This allows you to significantly save energy resources for heating. Install and connect the thermostat sensor in a system with heated floors when the power supply is de-energized.

Posts

Warm water floors from the category of exotic heating become a type of heating known to many users interior spaces for various purposes. If the insulation of the building meets modern strict requirements, and the room is small, then it can be the main one. In all other cases, a warm water floor is used as additional heating.

The nature of the application is also influenced by the climatic zone of the building's location; in warm regions, water floors are in most cases installed as the main heating. In regions with cold and long winters, this option is not used; the effective power to create comfortable temperatures is insufficient. And heat the floor to very high temperatures for many reasons it is impossible.

The comfort of staying in the premises, the duration and safety of operation of the systems largely depends on the operating modes of water heating. To control and regulate operating parameters, thermostats for water heated floors are used. There are a huge number of them, but according to the principle of operation, the devices are divided into only a few large groups. Before you begin to consider the principle of operation of thermostats, you need to become familiar with the methods and parameters for adjusting the heating temperature. This knowledge will provide an opportunity to better understand the operating features various types thermostats.

Water heating at home has several systems for each room; sometimes there can be two or more circuits in one room.

Each system and each circuit must be independently regulated. The process is carried out through a collector - a device to which the inputs and outputs of all circuits are connected.

A pump is installed to supply water; the amount of coolant supplied is regulated by various valves. To monitor temperature indicators, there are sensors; valves can be controlled by servo drives.

If the sensor shows a decrease in the floor temperature, then the amount of warm water increases and vice versa, when the temperature rises above the set parameters, the consumed volume of water decreases. Servo drives must be mounted on each circuit separately and controlled by sensors. Thermostats for selecting heating parameters are installed in rooms or in a special common control panel (if there are many rooms and a single control panel is required).

The use of thermostats and servo drives in thermostats makes it possible to fully automate the functioning of the system; heating is easy to maintain; thermostats are able to not only maintain temperature values ​​in specified modes, but also independently turn on/off the heating in the event of a long absence of people. Automation saves up to 30% of energy without worsening the living conditions of people in the premises.

What can thermostats control?

Depending on the type of heating, thermostats can regulate the following parameters:

• floor temperature. Sensors are installed in close proximity to the heating circuit and indicate the degree of heating of the finished floor covering. They are used in small circuits and low-power water systems used only as additional heating;
• air temperature in the room. For these thermostats, the sensors are mounted directly in the thermostat housing. The parameters are adjusted taking into account the comfortable room temperature. They are used on powerful systems and only in houses that have thermal insulation that meets the requirements of the standards. Otherwise, large losses of coolants make its operation unprofitable;
• combined. Heating parameters are controlled taking into account the readings of two sensors: in the room and next to the heating system. Rarely used only for the most modern systems. If desired, control can be carried out based on the readings of one of the installed sensors.

Warm water floor - temperature distribution

The choice of a specific thermostat takes into account the maximum amount technical characteristics heating system, heat saving indicators of the building, climatic zone of location and customer wishes.

Types and brief characteristics of thermostats

Industrial companies have mastered the production of a wide range of different thermostats, which makes it possible to control all water floor heating systems in atomic mode.

1. Mechanical thermostats.

   The simplest, cheapest and most reliable devices. Have protective cover made of durable plastics. The temperature is regulated by turning the thermostatic head; the devices do not require high maintenance costs. The temperature is selected by turning a special disk with a gradation scale.

   On some models, a valve is installed to completely turn on/off the system. Disadvantage - constant temperature control is required; changes in indicators are made only in manual mode. Unscrupulous manufacturers may produce devices that incorrectly display the temperature. Practitioners advise in all cases to check their readings with an installed accurate thermometer. If the data differ significantly, then the adjustment must be made taking into account the differences.

2. Remote touch. Parameters are configured using the touch panel and can be controlled by remote controls. More modern models, make temperature control much easier. They have several adjustment options. Reliability and safety of operation largely depend on the manufacturer. You should not save, real losses can far exceed the difference in price.
3. Ordinary electronic. The functionality is almost no different from the touch ones. On the case there is a small screen and a set of buttons for creating a program for the functioning of a heated floor.
4. Electronic programmable. Some of the most complex ones allow you to create a heating system operating program for a week and by time of day.

   This allows you to maintain comfortable temperature in the premises only during the presence of people, during the rest of the period the heating is switched to standby mode. Due to such opportunities, financial losses for the maintenance of premises during the heating season are significantly reduced. Devices can be connected to the system if desired. smart home", heat savings reach 30%. In addition, users can increase the temperature in the rooms when they arrive, making their stay in the premises more comfortable.

   Programmable thermostats can simultaneously control several separate hydronic underfloor heating systems. Disadvantages: high cost and complexity of adjustments; installation, adjustment and start-up work should only be performed by a specially trained technician. Before starting operation, you must carefully study the attached instructions; gross violations of the rules of use can damage the expensive equipment.

5. Radio controlled. Rarely used due to unreasonably high cost. In terms of their technical capabilities, they are no different from those described above, but the price can increase significantly. The difference is that the servomechanisms are controlled not through low voltage cables, but using radio signals. The radio thermostat receives sensor readings and transmits them to the radio controller. The latter, after processing the data, sends radio signals to the drive mechanisms for supplying warm water. Each device has its own receiver and transmitter, which significantly increases the price. In addition, this makes it difficult to carry out repair work, most parts have to be completely replaced with new ones. It is advisable to install such thermostats in elite premises where the presence of external conductive cables is not welcomed by the owners.

How thermostats work

The operation of the devices is possible only in combination with additional equipment and sensors; each element performs its own functions. The equipment is installed on the wall or in a separate panel and on the switching center.

1. Sensors Mounted next to the heating system or in the thermostat housing, they show the actual temperature at the installation sites. Signals are transmitted through wires or radio.
2. Thermostats process the received information and send response signals to the servos.
3. Pump control module. It only works when at least one heating system or individual circuit is open.
4. Servo drives open/close hot water supply taps and have direct connections with thermostats.

To increase operational safety, install safety valves and fittings for protecting electrical equipment from overheating and ultra-high short circuit currents.

The choice of a specific model of thermostat for a water floor depends on many conditions: the purpose and size of the room, the method of connecting the coolant, the finishing materials of the floor, the climatic zone of residence, the presence of main or additional heating systems.

What criteria should you use to select devices?

1. Price. The cheapest mechanical ones. They are reliable in their work, universal use. In addition, such devices are very reliable, they are almost impossible to disable due to negligence. Perfect for those users who have small children.
2. Electronic. They have somewhat expanded functionality and can control the temperature at floor level or in the room. In terms of cost, they belong to the middle segment of goods.
3. Programmable. Expensive devices, require careful attention, allow you to create the most favorable conditions staying in the rooms. May have various modifications and technical capabilities, in terms of cost belong to the highest category. Recommended for use during heating installation in luxury buildings. The price can reach $500 or more.

Mechanical regulator

A separate mechanical device must be installed on each circuit, its technical parameters do not allow you to control the temperature of several rooms at the same time.

In order to control the heating temperature depending on the room temperature, you need to purchase a room thermostat and set the required temperature by rotating the head. Some models can be connected to chronometers, which allows you not only to maintain a comfortable temperature at different periods of time, but also save significant money.




The servo drive has a motor with two-way rotation. Depending on the phase of the signal supplied by the thermostat, the rotor rotates clockwise or counterclockwise. Accordingly, the valve increases or decreases the nominal clearance of the pipelines. All work must be carried out in compliance with the PUE; the equipment operates on a voltage of 220 V.

Video - Thermostat for water floor

Warm floor - functional modern technology heating systems used in a house, apartment, cottage, children's and medical institution, production premises. Its irreplaceable component is a thermostat.

The heated floor sensor records and transmits the floor temperature to the thermostat, which, reacting to the information received, controls the entire heating system. Timely switching on and off of the heated floor ensures the creation comfortable atmosphere certain space.

Equipment Features

Hot water as a heat source is used when installing a heated water floor. To adjust the comfort room temperature a warm water floor sensor is used, mounted in the screed.

There are several types of thermostat sensors. Thermostats with two sensors are considered more reliable. This provides control over the external room temperature and the internal state of the system. The presence of these two devices makes heated floors more economical and safer.

An additional key serves as a child safety lock. Some models of thermostats with sensors are equipped with sound and light alarms that inform owners about problems and violations of the system’s operating mode.

For main or additional system Far infrared radiation from film heated floors is used to heat any room. Infrared sensor for heated floors, measures the temperature in the place where the thermostat is installed.

Due to the fact that the floor heating sensor is mounted directly into the floor structure, the influence external factors its errors are minimal.

Underfloor heating thermostat with temperature sensor, together with heating cable, counts the most important element heating systems.

Unique sensor-limiters prevent the floor surface from cooling to a certain temperature. They are most often installed in an insulating pipe in a cable heating system.

The sensors included with thermostats for laminate tiles are simple and programmable. To obtain maximum savings in operating costs, it is better to buy a programmable floor heating sensor. An inexpensive, reliable mechanical device is used for simple manual temperature adjustment.

The heating floor temperature sensor is connected to a wall where there is no draft or direct sunlight. This connection of the heated floor sensor prevents distortion temperature indicators, ensures the creation of the desired temperature.

The Devi heated floor sensor, thanks to the presence of fast heating functions and smooth adjustment of the system temperature, allows for the most user-friendly operating mode. While consuming a small amount of electricity, heated floors significantly transform the room into a warmer, more comfortable one.

It is best to buy a heated floor temperature sensor famous brand(Devi, Teplolux, Energy, Legrand). Despite the fact that they cost more than the cheapest options (from 1,500 rubles and above), their use provides precise work systems (and therefore energy savings for heating the room).

Nuances of selection and application

Regarding the key rules for installing the sensor:

1. To ensure adequate temperature data, the floor heating sensor is installed at a distance of at least 50 cm from the nearest wall.
2. The total length of the wire from the sensor’s thermal head to the thermostat should not exceed 2 m.

To ensure accurate operation of the sensor (and therefore extend the life of the heating system and avoid excess energy consumption), these nuances must be taken into account.

Even a minimal error in measurements will cost you money, which you will have to spend on maintaining an extra degree of temperature.

By choosing the right temperature sensor for a warm water floor (electric, infrared - any), you will enjoy maximum comfort in your home for a long time.

We'll tell you how to check the heated floor sensor:

1. Typically, the resistance of the heated floor sensor is in the range of 5-30 kOhm. You can determine more precise parameters of this value by looking at the operating instructions for a particular device.
2. On the tester in resistance measurement mode, the corresponding maximum value is set. Measurements that differ greatly from the specifications indicate a faulty sensor that needs to be replaced.
3. To establish the functionality of the sensor, its resistance is measured and compared with the specified parameter in the passport. When it is plugged into the network, a green light on a working device lights up, the cable begins to heat up, and the resistance should decrease.

If everything is in order, the power is turned off and further work on the floor screed can be carried out.

As for the cost of the device, it starts around 1000-1200 rubles. For this amount you can purchase a regular sensor that operates in the required temperature range (from 0º to +30º).

Device installation

Regardless of the manufacturer, standard wiring diagram connecting a heated floor sensor.

The following elements of the system will “participate” in this:

• A three-core supply cable, in which the phase is a core of any color different from the rest; working zero – blue, white-blue core; protective (grounding) zero – yellow-green conductor.
• Heating cable for a heating system, made of two wires with a protective screen.
• Temperature sensor located in a corrugated pipe directed to the location of the heated floor, with black and white wires.

It is best to buy a temperature sensor for a heated floor complete with a heating system. This will simplify the task - you won’t need to search suitable option. Otherwise, the temperature sensor for the heated floor must be selected independently.

Installing a heated floor sensor does not require any special skills or special equipment, and if desired, you can handle the task yourself.

However, due to the fact that this work will not tolerate errors (the slightest inaccuracy can lead to an error in measurements, which means incorrect operation of the system), it is still better to have specialists do this, along with laying the heated floor itself.

Under parquet, laminate, other types of soft floor coverings, its installation is done “dry” - the plastic cylinder is attached directly to heating system. The connection of the heated floor temperature sensor under the tiles is carried out in a corrugated tube laid in a pre-made channel in the floor.

To prevent concrete from getting into the corrugated tube, a plug is placed on one side using tile adhesive. If necessary, the temperature sensor can be easily removed from the corrugated pipe without lifting the entire floor covering.