Heating regulator Danfoss Principle of operation. Thermal heads Temperature controls for Danfoss heating batteries. Built-in temperature sensor
In the countries of the post-Soviet space, up to 40% of energy resources goes to the needs of heating and ventilation of buildings, it is several times more than that of advanced european countries. The issue of energy saving costs sharply, more than ever, especially against the background of constant increase in the cost of energy carriers. One of the devices that save thermal energy The house is the thermostat for the battery whose installation can reduce heat consumption up to 20%. But for this, it is necessary to correctly select regulators to the heating system and perform their installation, which will be told in this article.
The principle of operation of the thermostatic valve
The first thermostats for radiators designed to maintain a permanent temperature in the room were invented back in 1943 by Danfoss, she also owns the championship in the production and sale of such devices. For this reason, our article will rely on the materials and recommendations of the company Danfoss, whose many years of experience is not subject to doubt.
For the years since the invention, the thermostators for radiators were changed and became such as we know them. Structurally, they consist of two main elements: valve and thermal heads that are connected by a locking mechanism. The appointment of the thermal heads - perceive the temperature ambient And to regulate it, influence the actuator - the valve, it overlaps the flow of the coolant entering the heating device.
This method of regulation is called quantitative, since the device affects the flow rate of the coolant passing into the radiator. There is another method - high-quality, the temperature of the water in the system changes with it. This carries out a temperature controller (mixing unit), installed in a boiler room or thermal point.
To understand the principle of operation of the thermal heads, it is proposed to study the scheme of the device shown in the context:
Inside the element housing is a bellows filled with a heat-sensitive medium. It happens two types:
- liquid;
- gas.
Liquid bellows are easier in the manufacture, but losing gas to speed, so the latter got very widespread. So, with an increase in air temperature, the substance in the closed space expands, the bellows is stretched and presses on the valve stem. That, in turn, moves down a special cone that reduces the valve flow cross section. As a result, the flow rate of the coolant decreases. When cooling the ambient air, everything occurs in the reverse order, the number of flowing water grows to a maximum, this is the principle of operation of the thermostat.
Depending on the type of heating system and the installation conditions of the device, the sets of the thermal head can be used to control the flow of the coolant. different combinations. IN single-tube systemsah heating is recommended to install valves with increased bandwidth and low hydraulic resistance (marking Product production Danfoss - RA-G, RA-KE, RA-KEW).
The same recommendation concerns two-pipe samotane systems, where the coolant circulates naturally, without compulsory motivation. If the heating scheme is a two-pipe with a circulating pump, then the valve should be selected with the possibility of adjusting the bandwidth (Marking Danfoss - Ra-N, Ra-K, Ra-KW). This adjustment is quite simple and the special tool is not needed for it.
When a question with the selection of the valve is resolved, you need to decide on the type of thermal head. They are offered in the following versions:
- With an internal thermoelement (as in the diagram presented above).
- With a remote temperature sensor.
- With an external regulator.
- Electronic (programmable).
- Antivandal.
An ordinary thermostat for heating radiators with an internal sensor is received to the installation, if it is possible to arrange its axis horizontally so that the air of the room freely washed the body of the instrument, as shown in Figure:
Attention! It is not allowed to install a thermostat for a battery in a vertical position, the thermal stream, rising from the feed pipe and the valve body, will influence the bellows, as a result of which the device will not work correctly.
If horizontal installation of the head is not possible, it is better to purchase a remote temperature sensor in a set with a capillary tube with a length of 2 m. It is at such a distance from the radiator can be located this deviceWhen attaching it to the wall:
In addition to the vertical installation for buying a remote sensor, there are other objective reasons:
- heating radiators with temperature regulator are behind dense curtains;
- in the immediate vicinity of the thermal heads pass pipes with hot water or there is another source of heat;
- the battery is under a broad windowsill;
- the internal thermoelement enters the area of \u200b\u200bthe draft.
In rooms with high battery interior requirements, often hide under decorative screens from various materials. In such cases, the thermostat that fell under the casing registers the temperature of the hot air accumulating in the upper zone and can entirely block the coolant. Moreover, it is completely closed access to head control. In this situation, the choice should be made in favor of the remote controller combined with the sensor. Options for its placement are shown in Figure:
Electronic thermostats with display are also two types: with a built-in and removable control unit. The latter is characterized by the fact that the electronic unit is disconnected from the thermal head, after which it continues to function as usual. Assigning similar devices - adjustment of the temperature in the time of day in accordance with the program. This allows you to reduce the heating power in working timeWhen there are no one at home and in other similar cases, which leads to additional energy savings.
When there are small children in the house, which everyone wants to try their handles, it is better to establish an anti-vandal type thermostat with a casing that protects the settings of the device from unqualified intervention. This applies to the thermostats facing other public buildings: kindergartens, schools, hospitals, and so on.
How to install a thermostat on the battery
The first recommendation is not to put thermal heads on all heaters within sight. Here the following is the following: the regulation must be subjected to radiators whose total power is 50% or more of all in the same room. For example, when there are 2 heater in the room, then the thermostat should be equipped with 1 battery, whose power is greater.
Council. If the heating devices are applied cast iron radiatorsThe maintenance of microclimate using thermostatic valves will be ineffective. The fact is that the work of cast-iron batteries is very inertial, after overlapping the coolant flow, they still radiate heat and, on the contrary, for a long time they accelerate. Installation of valves does not make sense, you will only spend your time and means.
The first part of the device is the valve - it is recommended to mount on the supply feed pipe at the time of connecting the radiator to the heating system. In the case when it is required to embed it into the collected system, the feed liner will have to be dismantled. It will deliver some difficulties if the connection is made by steel pipes, you will need a tool for cutting pipes and cutting the thread.
After the thermostat on the heating battery is set, the thermal head is mounted without a tool. It is enough just to combine tags on the housings and smoothly pressing the head in the nest. The signal will serve as a fixing mechanism.
It is a bit more difficult to install an anti-vandal thermostat, for this you will need a hex key of 2 mm. By combining the required tags, as shown in the diagram, you need to press the thermal head, and the hexagon is tightened to the locking bolt on the side.
Installation of the remote sensor and the regulator is carried out on the parts free of the interior parts and furniture, placing them at an altitude of 1.2-1.6 m from the floor, as shown in the diagram:
First, the mounting plate is attached to the wall to the wall, and then the housing is snapped by simply by pressing it. The capillary tube is fixed to the wall of plastic homutics, as a rule, they are included with the product.
In addition to the standard temperature adjustment in the heads, the thermostat is set to the maximum and minimum limits, on which the rotation of the wheel becomes impossible. This contains restrictive pins that are in the rear of the product. You need to pull out one of them and after debugging the system insert into the hole under the appropriate label:
Conclusion
To make a selection of the thermostat - the task is simple, it is important to understand what the valve is purchased under which heating system is purchased and know where it will be. Definitely recommended programmable devices, as the most economical.
LLC "PROMARMATURE XXI Century" offers a wide range of Danfoss products
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Danfoss is the world's largest manufacturer of radiator thermostators. Over the years, Danfoss sold more than 300 million radiator thermostators around the world, which saves a million fuel liters daily and prevent harm caused by the nature of carbon dioxide tons, sulfur compounds and other harmful substances. Radiator thermostators pay off in less than two years, and the standard service life of more than 20 years is a great opportunity to save money and energy.
Danfoss radiator thermostators are manufactured with embedded and remote sensors to ensure optimal functioning; plus a wide range of valves and additional equipment Make up the widest range of our products.
Thermostatic elements of the RA 2000 series
Thermostatic elements of the RA 2000 series are automatic temperature control devices designed to complete the RA radiator thermostators. Radiator thermostat is a proportional air temperature controller direct action With a small zone of proportionality, which is currently equipped with systems for the heating of buildings of various purposes. The thermostat Ra consists of two parts:
All thermostatic elements can be combined with any regulating valves of type RA. Clip connection provides simple and accurate mounting of the thermoelement on the valve. The protective cover of thermoelements RA 2920 and RA 2922 prevents their unauthorized dismantling and reconfiguration to unauthorized persons. The technical characteristics of the radiator thermostators of the type RA correspond to European standards EN 215-1 and Russian GOST 30815-2002.
Specifications of thermostatic elements of the RA 2000 series
The main device of the thermostatic element is a bellows that provides proportional regulation. The thermoelement sensor perceives the change in the ambient temperature. The bellows and the sensor are filled with an easy-to-sleep liquidity and its pairs. The adjusted pressure in the bellows corresponds to the temperature of its charging. This pressure is balanced by the power of the tuning springs. With increasing air temperature around the sensor, part of the fluid evaporates, and the pressure of vapors in the bellows grows. In this case, the bellows increase in the volume by moving the valve spool towards the closing of the hole for the coolant duct into the heater until the balance between the spring force and the vapor pressure is reached. When the air temperature decreases, the pairs are condensed, and the pressure in the bellows decreases, which leads to a decrease in its volume and the movement of the valve spool towards the opening to the position in which the equilibrium of the system will again be established. Steam filling will always be condensed in the coldest part of the sensor, usually most remote from the valve body. therefore radiator thermostat It will always respond to changes in room temperature, which does not feel the temperature of the coolant in the underwater pipeline. However, when the air around the valve is still heated by heat, given by the pipeline, the sensor can register a higher temperature than indoors. Therefore, it is recommended to establish thermostatic elements to eliminate this influence, as a rule, in a horizontal position. Otherwise, it is necessary to apply thermoelements with a remote sensor.
Select the type of thermostatic element
Thermostatic elements with built-in sensor
When choosing a thermostatic element, it should be guided by the rule: the sensor should always react to the air temperature in the room.
Thermostatic elements with a built-in sensor should always be arranged horizontally so that the ambient air can freely circulate around the sensor. Do not install them in a vertical position, since the thermal effect on the sensor from the valve body and the heating system pipe will lead to the incorrect functioning of the thermostat.
Thermostatic elements with a remote sensor
Thermostatic elements with a remote sensor should be applied if: o Thermal elements are closed with a deaf curtain; o The heat flux from the heating system pipelines affects the built-in temperature sensor; o The thermoelement is located in the draft area; o Required vertical installation thermoelement. The remote sensor of the thermostatic element must be installed on the furniture-free and curtains or on a plinth under the heating device if there are no pipelines of the heating system. When installing the sensor, the capillary tube should be pulled out to the required length (maximum of 2 m) and fasten it on the wall using the accompanying brackets or a special pistol.
Thermostatic elements of the RAW series
Thermostatic elements of the RAW series - devices of automatic temperature control, designed to complete the RA radiator thermostators. Radiator thermostat is a proportional direct-acting air temperature regulator with a small proportionality zone, which is currently equipped with systems for the heating of buildings of various purposes. The RA type thermostat consists of two parts: a universal thermostatic element of the RAW series and an adjusting valve with a pre-adjustment of the RA-N bandwidth (for two-pipe heating systems) or Ra-G (for a single-tube system).
The program of the production of thermostatic elements of the RAW series includes:
The thermostatic elements of the RAW series are equipped with system protection devices from freezing, fixing and restricting the temperature setting. RAW 5012 is equipped with an ultra-thin capillary tube with a length of 2 m, which is swept inside the sensor housing and connects a remote sensor with a thermostatic element. In the process of installation, the pipe is pulled into the required length. Clip connection provides simple and accurate mounting of the thermoelement on the valve.
The technical characteristics of radiator thermostators with thermoelements of the RAW series correspond to European standards EN 215-1 and Russian GOST 30815-2002.
In order to prevent unauthorized dismantling, the thermoelement can be fixed on the valve using a special retainer (see additional accessories).
Specifications of thermostatic elements of the RAW series
The main device of the thermostatic element is a bellows that provides proportional regulation. The thermoelement sensor perceives the change in the ambient temperature. The bellows and the sensor are filled with a special heat sensitive liquid. The adjusted pressure in the bellows corresponds to the temperature of its charging. This pressure is balanced by the power of the tuning springs. When the air temperature is raised around the sensor, the liquid is expanding, and the pressure in the bellows grows. In this case, the bellows increase in the volume by moving the valve spool towards the closure of the heat carrier duct into the heating device until the equilibrium between the spring and the fluid pressure is reached. When the air temperature decreases, the liquid begins to shrink, and the pressure in the bellows decreases, which leads to a decrease in its volume and the movement of the valve spool towards the opening to the position in which the equilibrium of the system will again be established. To eliminate the effect of warm air from heating nozzle heating device It is recommended to set thermostatic elements, as a rule, in a horizontal position. Otherwise, it is necessary to apply thermoelements with a remote sensor.
Thermostatically elements of the RAW-K series
Thermostatic elements of the RAW-K series are automatic temperature controllers with a small proportionality zone. RAW-K are designed to be installed on the thermostators of HEIMEIER, OVENTROP or MNG firms, built into the steel design panel radiators Type of type Biasi, Delta, Dianorm, Diatherm, Ferroli, Henrad, Kaimann, Kermi, Korado, Purmo, Radson, Superia, Stelrad, Veha, Zehnder-Completto Fix. The thermostatic element of the RAW-K series has a liquid sensor with a temperature setting range of 8-28 ° C and is equipped with a device for protecting the heating system from freezing.
The company "Danfoss" produces 3 modifications of the thermoelements of the RAW-K series:
RAW-K 5032 is equipped with an ultra-thin capillary tube with a length of 2 m, which is swept inside the exhaust sensor housing, connecting it with the thermostatic element working bellows. In the process of installation, the tube is pulled into the required length. The thermostatic elements of the RAW-K series comply with European standards EN 215-1 and Russian GOST 30815-2002.
Electronic radiator thermostat Living Eco
Electronic radiator thermostat Living ECO® is a programmable microprocessor regulator to maintain a predetermined air temperature, mainly in residential buildings serviced by water heating system. The thermostat is designed to be installed on the closens of radiator thermostators instead of traditional thermostatic elements.
In Living Eco®, the P0, P1 and P2 programs are installed, which allow you to adjust the temperature in the room at different periods of the day.
The P0 program supports constant air temperature throughout the day. P1 and P2 programs in order to save energy can reduce the temperature in the room during certain periods of time, which allows to adapt the operation of the heating system to the lifestyle of people living in it.
The Living ECO® thermostat is supplied with adapters for its installation on Danfoss thermostators, as well as most of other manufacturers. Installing and configuring the Living ECO® thermostat does not represent difficulties, there are only three buttons on its panel.
The Living ECO® thermostat is equipped with an open window function, which turns off the coolant supply to the heating device with a sharp decrease in the air temperature in the room, which reduces heat loss in the way increases the efficiency of the heating system.
The main characteristics of the thermostat:
Pre-installed programs
The function "Long absence" allows to reduce the temperature in the room when it is not operated. The absence period and temperature are adjusted arbitrarily by the consumer.
The selection of programs and their setup are made in accordance with the instructions attached to the thermoelement.
TWA thermoelectric actuators
The thermoelectric mini-actuators of the TWA series are designed for a two-position control of various control valves in heating systems and heat-drying of local ventilation plants.
The drive is equipped with a visual indicator of the stroke, which shows, in which position is the valve - closed or open.
TWA actuators depending on the modification can be used with valves of the RA, RAV8 and VMT series manufactured by Danfoss, as well as with HEIMEIER, MNG and OVENTROP valves, having a thread for fastening the drive M 30 x 1.5. In the case of applying a drive with other types of valve valve, the valve must be tested for compatibility of geometry and ensuring its closure. Power supply voltage - 24 or 230 V. Valves can be normally closed in the absence of voltage (NC) and normally open (NO). In addition, the normally closed drive with feed voltage 24 V is supplied with a limit switch (NC / S).
The thermostat valves with the pre-tuning RA-N and RA-NCX DU \u003d 15 mm (chrome)
RA-N and RA-NCX regulating valves are assigned to use in two-pipe water heating pumping systems.
RA-N is equipped with a built-in device for preliminary (mounting) adjusting its bandwidth within the following ranges:
Ra-n and Ra-NCX valves can be combined with all the thermostatic elements of the RA, RAW and RAX series, as well as with thermoelectric drive TWA-A.
To identify RA-N and RA-NCX valves, their protective caps are painted in red. The protective cap should not be used to overlap the coolant flow through the heating device. Therefore, the handle should be applied (code number 013G3300).
Valve housings are made of pure brass with nickel coating (Ra-N) or chrome (RA-NCX).
The technical characteristics of the RA-N and RA-NCX valves in combination with thermostatic elements of the RA, RAW and RAX series correspond to European standards EN 215-1 and Russian GOST 30815-2002, and the size of the connecting thread is the HD 1215 standard (BS 6284 1984). All radiator thermostators manufactured by Danfoss are manufactured at factories with ISO 9000 quality certificate (BS 5750).
To prevent deposits and corrosion valves rA-N thermostators and RA-NCX should be used in water heating systems, where the coolant meets the requirements of the Rules technical exploitation electrical stations and networks Russian Federation. In other cases, it is necessary to contact the company "Danfoss". It is not recommended to use compositions containing petroleum products (mineral oils) to lubricate the valve parts.
Setting on calculation It is easy and accurate without the use of special tools. To do this, make the following operations:
Pre-configuration can be performed in the range from "1" to "7" at intervals of 0.5. The "N" position valve is fully open. Installation should be avoided on a dark zone scale.
When the thermostatic element is mounted, the pre-tuning is hidden and, thus, protected from an unauthorized change.
The thermostat valve with a pre-tuning RA-N with a compound fitting
The RA-N valve is designed for use in two-pipe water heating tubing systems with copper pipelines or of stainless steel. To connect the valve with a pipeline with a pipeline, special crimping tools are required. The valve body in appearance and technical characteristics is identical to the standard valves Ra-N DN \u003d 15 mm. Ra-n can be used with any types of thermal static elements of the RA or RAW series, as well as with thermostatic elements of a special design of type RAX and thermoelectric TWA-A thermoelectric drive.
The RA-N control valve is equipped with a built-in device for preliminary (monkent) adjusting its KV bandwidth in the range from 0.04 to 0.73 m3 / h.
To identify valves, the protective cap is painted in red. The cap should not be used to overlap the adjustable medium. To this end, it is necessary to use a special metal handle (code number 013G3300). The valve body is made of nickel-plated brass DZR, and the pressure pin is made of stainless steel. The pin does not require lubrication over the entire life of the valve. The gland seal can be replaced without emptying the pipeline system. Ra-n should be used in water heating systems, where the coolant meets the requirements of the maintenance rules of electrical stations and networks of the Russian Federation. In other cases, it is necessary to contact the company "Danfoss". It is not recommended to use formulations containing oil products (mineral oils) to lubricate the valve parts.
The thermostat valve with increased bandwidth RA-G
The valve thermoregulating with increased bandwidth RA-G is designed for use, as a rule, in single-pipe systems of water heating with a pumping circulation of the coolant that meets the requirements of the technical operation of electric stations and thermal networks of the Russian Federation. The valve is not recommended to be used if impurities of mineral oil are present in the coolant.
RA-G is equipped with a seal that can be replaced without emptying the heating system. The pressure pin in the gland is made of chrome steel and does not require lubrication over the entire life of the valve. All performances of RA-G valves are combined with any thermostatic elements of the RA series.
Ra-G valves are supplied with gray (for identifying) protective caps that should not be used to overlap the coolant flow. Therefore, a special metal service locking handle should be applied (code number 013G3300).
A set of X-TRATM thermostatic reinforcement for heated towel rails and design radiators.
The thermostatic X-TRA ™ kit is specifically designed for heated towel rails. It consists of a thermostat valve, a thermostatic element and a shut-off valve with a drainage function. Innovative self-adhesive connection of valves to the radiator is carried out using a thread one second inches. Valves and thermoelement are available in white, chrome-plated and steel versions, suitable for most heated towel rails. This kit is the perfect ending of the heated towel rail. Attractive and compact design allows you to install the thermostat under the heated towel railway parallel to the wall, eliminating random strikes on it.
The nomenclature presents two types of thermostators with various principles Regulation:
- RAX, regulating the room air temperature;
- RTX, which determines and regulating the temperature of water at the outlet of the heated towel rail. Used on heated towel rails and customizable by 5-10 ° C over temperature indoors, the RTX thermostat provides a constant temperature for drying towels.
The valve assembly is a housing with a two-sided self-fitting fitting, which has two sealing rings: one - to compact fitting compound with a heated towel rail, second to seal fitting compound with valve body. The screw with an internal hexagon is used to ensure the sealing of the valve body compound with the fitting. If the sealing rings are not suitable for the fittings of the heated towel rail, the traditional sealing material is used.
The Danfoss temperature regulator is a device that is widely used in various home and industrial heating systems. Such samples are distinguished by high quality, accuracy and convenience of work.
Let's study their features in more detail so that you have the opportunity to use these perfect mechanisms and for your systems.
Description and appointment
Danfoss regulator - The device that is used to adjust the air temperature in the room. Such an appliance can be used in various heating systems, including in such where water is the blast.
The regulator allows you to manually control the operation of such a system, economically spend heat, as well as turn on and off all heating. The thermostat is used both in home networks and in closed greenhouse ecosystems, or in production. It is also used to work refrigerators, air conditioners and other systems, in which it is important to observe the temperature regime.
1.1 Danfoss Temperature Management Device
Danfoss regulator, regardless of its design. It is a small chamber filled with gas or liquid. This liquid or gas is exposed to temperature expansion, presses on the shut-off valve, in view of which the flow of heating fluid in the radiator ceases, due to which the system increases the temperature.
When cooled the room, the liquid is compressed and the reverse reaction occurs. Such a system of work is valid for all types of radiator, including products for refrigerators. According to this principle, almost all products of this manufacturer are operating, including Danfoss RTD and Danfoss RA rules, as well as many others.
2 model range of Danfoss thermostators
Danfoss has a fairly wide range of thermostators. Currently, these products include such varieties of devices:
- temperature regulators for design of model range regulators 013G4001-013G4009. Applicable for heated towel rails, as well as various sections of heating networks. Produced in versions for the right and left-sided installation;
- Danfoss RTD 3640 is a variety of models for heating systems. Designed for a two-pipe standard system. Have RTD protection function from freezing for the winter. This species is suitable for home, industrial heating systems, but not for refrigerators. It has only 4 divisions, designated as Arabic and Roman numbers;
- rAX models with liquid filler. This series is also intended for heated towel rails and design radiators. The model is applicable for most modern versions of design radiators, has divisions with both Arabic and Roman numerals;
All presented versions of thermostators are accompanied by a whole series of special accessories that simplify their installation, as well as further use.
Almost all thermostators released in this series are represented in three different options: Goldist, white, silver. You can choose the type that matches your system, the valve and the temperature jakela work they have almost the same.
2.1 How to install Danfoss thermostat?
The Danfoss regulator is mounted directly on the hot pipe feeding your heat supply system. Installing any model, including RTD 3640, RA, is not complicated. Work in this case will have this way:
- Turn off the system from the total power, cut off the pipe of the desired size to install the thermostat. Without this step, the installation is not carried out.
- On the existing nozzle, we make a thread with the help of special devices to which the thermostat will be installed.
- We process the plot of plumbing paste, and already fastened the housing of the valve RTD 3640, RA or any other.
- Connect the device itself to the valve, tightening the puck connection. Additional sealing is not needed here.
- We remove the fuse, build the thermostat to the maximum value of 5, then we put the cap with the scale on it. It is important to install before clicking for the maximum dense and high-quality adjacent.
- Once again check the sealing of the system, after which it can connect it back to general System Supply. Let the valve appear once and closes, and you will be sure that the equipment works correctly.
Installing RTD, RA or other models completed. Now you can freely use the device.
2.2 How to configure Danfoss thermostat?
Setting up such a device as a RTD regulator, RA Danfoss is quite simple and available for all users. In order to implement it, you need to explore the temperature scale existing in the end (it can differ somewhat depending on which version you use). Then set the temperature you are interested in, simply by moving the pointer on the device you need the parameter.
You can also choose intermediate values \u200b\u200bif they arrange you. After a few minutes, the valve is rebuilt into the right position, and the temperature in the apartment will come to the desired parameter, and you can enjoy the most comfortable microclimate for you. Similarly adjusts the valve and in models for refrigerators.
2.3 Danfoss thermostat and its types (video)
In many countries, up to 40% of energy resources goes to the needs of ventilation and heating of buildings. It is several times more compared to advanced European states.
The need for use
The issue of energy saving is especially acute, it is relevant against the background of a constant increase in energy prices. One of the devices that saves thermal energy is a thermostat for radiators, its installation reduces heat consumption by 20%. To do this, the consumer needs to be correctly selected to the design to the heating system, as well as make installation, you can find out if you read below.
Principle of operation
The Danfoss thermostat is designed to support the constant temperature indoor. For the first time such devices began to be used in 1943. The company mentioned is the market leader in the production and sale of such aggregates. Constructively, the devices are in composition 2 of the main element, namely the thermal head and the valve, which are connected by the locking mechanism. The purpose of the thermal head is to determine the ambient temperature to adjust the impact on the actuator, the valve protrudes as the latter. It is designed to cover the flow of water that enters the radiator. Such a regulation method is called quantitative, as the device can affect water consumption that goes into the battery. There is another method called high-quality, with its help the water temperature changes in the system. This is performed by means of a temperature controller, namely the mixing node. This element must be in a thermal point or boiler room. The Danfoss thermostat has inside the bellows, which is filled with a heat sensitive medium. It can be gas or liquid. The last variety of bellows is easier in manufacture, but does not show such speed as gas analogues, so the latter have gained so widespread. At the time of increasing the level of air temperature, the substance that is in a closed space acquires a more impressive volume, the bellows, stretching, has an impact on the valve stem. The latter move down the cone, which is designed to reduce the passage section. This allows you to effectively reduce water consumption. With a decrease in air temperature, this process proceeds in the reverse order, and the volume of the coolant increases to the optimal limit, and the Danfoss thermostat works.
Consumer reviews
Depending on which type of heating system is used, as well as the installation technology, thermal heads and valves in different combinations can be used to control water flow. If a we are talking On a single-pipe system, the valve should be used, which is characterized by increased bandwidth and insignificant hydraulic resistance. According to users, the same recommendation can be used in the case of a two-pipe samotane system, where water circulates naturally and does not affect the forced motivation. If you decide to choose the Danfoss thermostat, then you can install it on a two-pipe system, which is equipped with a circulation pump. In this case, according to the reviews, the valve must have the ability to adjust the bandwidth. This adjustment is simply simply, and it is not necessary to apply a special tool for this. After you decide what valve to use, it is necessary to determine the type of thermal head.
If you are interested in Danfoss - the thermostat, the installation instructions for which will be presented below, - you can purchase it at an affordable cost. Determining the type of thermal heads, you should know that it is proposed for sale in some varieties. Thus, inside may be a thermoelement. Among other things, the temperature sensor may be remote. Sometimes the regulator is external. The devices are also programmable, in this case they are electronic. You can choose and anti-vandal thermal head. According to users who chose a regulator with an internal sensor, this device should be installed only if it is possible to arrange it horizontally. Then the air in the room will freely go to the instrument housing.
For reference
After the Danfoss radiator thermostat was acquired, it is worth familiar with the features of its installation in more detail. Thus, it is completely unacceptable to install it on the radiator in a vertical position. In this case, the heat flux will constantly rise upwards, and elevated temperatures from the feed pipeline and the housing will influence the bellows. In the end, you will come across that the device will work incorrectly.
Customer Reviews on the choice of thermostat
Homemade masters especially emphasize that in some cases there is no possibility to install the device horizontally. Then it is recommended to buy a remote temperature sensor that comes with a capillary tube. The length of the device is 2 meters. At such a distance from the battery, it is recommended to have a device by installing it on the wall. Buyers emphasize that not always the absence of the installation of the regulator horizontally indicates the need to purchase a remote sensor. This may be other objective reasons. The Danfoss Temperature Regulator, the principle of which was described above, cannot be installed in any way for dense curtains, in this case, of course, the best solution will be the acquisition of a remote sensor. Among other things, such a need arises in the case when there is any source of heat next to the thermal head or the hot water pipes pass. You can resort to such a solution, and when the radiator is under a sufficiently wide window sill. In this case, the thermoelement can fall into the area of \u200b\u200bthe draft. Buyers claim that if at least one of the above conditions is observed, it is best to get a remote sensor.
Installation Instructions
The Danfoss Temperature Regulator, the reviews about which are presented in the article should be installed according to a specific technology. As the first recommendation, it is an elimination of the installation of the thermal heads on the heater within visibility. Regulation should be subject to battery whose general power equal to 50 percent and more from all that are in the same room. Thus, when there are two heating instruments in the room, the thermostat should be on the same battery, whose power is more impressive. If you are interested in Danfoss - a thermostat, the setting of which is simply made enough, it can be purchased and installed. The first part of the device whose role is the valve, should be installed on the feed pipeline. If it is necessary to embed it to the already assembled system, the feed liner must be dismantled. These works may assume some difficulties if the connection is made using steel pipes. The master will have to stock material tool.
Conclusion
A fairly popular company today in the market of relevant goods is Danfoss. The thermostat (how to adjust it is indicated in the instructions) must be installed on the radiator. The thermal head after that is mounted without using additional tool. It is very easy to do at home, in addition, it will be possible to save on the purchase of consumables.
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Danfoss Temperature Management - Operating Instructions
Installation on the thermostat radiator is the ability to reduce the cost of heating, improving the microclimate in the house, as well as the maintenance of Earth energy resources.
The motives can be different, but the decision is incarnated in life more and more.
Many, choosing equipment manufacturer, stop at Danfoss.
And not surprisingly, the products of the famous brand are easy to meet on the shelves of many stores.
The production technology of their thermostats based on a gas-filled bellows is patented and applied at its own company plants. If you also decided to purchase a Danfoss thermostat, the installation and operation instruction will be by the way.
The goal of the installation of the thermostat is maintaining the selected by the consumer, the air temperature in the house.
The design of the thermostator for radiators includes two elements, complementary by each other:
- Thermostat (or thermostatic element).
- Danfoss thermostat valve.
The valve is connected directly to the battery, and the thermostatic element is installed on it.
Basis base is a thermostat. It is he who reacts to a change in the ambient temperature and affects the valve that overlaps the coolant stream.
Temperature regulator Danfoss.
Inside the thermostat head - a bellows (corrugated chamber capable of changing the size), filled with gas. Gas, depending on the temperature, changes its aggregate state (chilled it condensed). This leads to a change in volume and pressure in the chamber. The camera decreases in size, pulls the stem of the spool, which opens a greater clearance in the valve for the receipt of the coolant.
When heated, the reverse process of expanding and overlaping the lumen occurs (adopted standard - 2 V ° C of excess air temperature over specified).
When a comfortable temperature is displayed on the regulator scale, a certain compression of a tuning spring is established inside, which is interconnected with a certain gas pressure.
Danfoss produces gas bellows inside, as well as liquid. The latter are more inert, react to a change in temperature slower.
Types and symbols:
- RTS - liquid bellows;
- RTD-G is a gas beam for a single-tube system, or two-pipeless without pump;
- RTD-N is a gas beam for a two-pipe system, and systems with a circulation pump.
Danfoss Radiator Regulators RA 2991
There are also modifications of thermoelements in which:
- Protection from reconfiguration with random persons (a great option for public institutions and children's rooms).
- There is a remote thermal sensor, connected by a two-meter capillary tube, which can be installed away from the radiator, blown into a niche or forced furniture, which gives a more accurate measurement result.
- With a range of temperatures, slightly less than the conventional sensors, to integrate into the system where payments are made by standards.
Heating system of floors
Thermostators are used for the heating system of floors. The thermostat for warm floors is simply necessary!
After all, driving fluid into the floor circuit, you need to lower its temperature from 60 to 90 in ° C, to a comfortable 35 - 40 V ° C (while the surface of the floor itself will be about 25 in ° C).
Flow meters are powerless if the pressure is jumping in the system if the air heats up, for example, from the Sun, and even if the tenants want to save on heating during their absence.
Thermomechanical regulator is better to apply for small rooms, about 10 m2.
For large areas use indoor thermostators With warm floor temperature sensors.
First of all, the valve on the radiator is mounted. For this, the flow of the coolant is overlap.
- There is a markup on the feed pipe. The site that will need to cut out should be in length correspond to the size of the valve body minus threaded connections.
- The heating pipe is cut, superfluous cuts.
- Using the layer, or dice, on outside Cutting pipe is made thread.
- The compound is processed by plumbing paste and fum-ribbon.
- The body of the valve hills the resulting thread.
- Since it is impossible to twist the pipe, from the opposite side of the valve, a cape-nut-American woman twists, and then screwed (hexagoned key) into a slice of the radiator.
- The body of the device is screwed into its own naked nut through the rubber washer. This connection is not necessary to somehow seal, the main thing is that it is clean.
- After the valve is installed on the radiator, the protective cap is removed from it (located perpendicular to the pipe).
The thermal head is set to the maximum temperature value, after which it dresses on the valve with pressing (before clicking).
Installation of the sensor
As already mentioned, the remote sensor is needed if the battery is built into the wall or something closed (furniture, screen, dense curtains).
In one case of this item, a sensor and a tuning node are combined.
- It is best to place the device on the open (but without drafts) of the wall, at an altitude of about 1.4 m. From the floor. It is necessary to avoid places near instruments that can strongly change the temperature of the medium - air conditioners, kitchen stoves, etc.
- Included in the device there is a small mounting panelwhich is fixed to the selected place with a pair of self-tales.
- Inside the sensor, the capillary tube is mixed. It is pulled into the desired length so that the device reaches the fixed plank.
- The capillary tube is neatly fixed on the back of the valve.
- The sensor is placed on the bar by simply snatching.
Installation of restriction
At the heart of the work of thermostators - physical laws. Therefore, you need to remember that the conditions in which the device is located can be made some adjustments (for example, remoteness from the heat source). There are approximate tables of compliance of the regulator scale and temperature, which can be taken beyond the landmark when installed. However, after the main setting it will be necessary to "understand" its thermostat.
For this:
- Exhibit the temperature on the handle with the labels.
- An hour later, control measurements are conducted by a room thermometer at several points of the room.
- If the temperature is greater or less, the testimony is adjusted on the handle.
The proportionality zone is 2 ° C. If you set a temperature of 20 °, the device will hold the indicators ranging from 20 to 22 ° C.
Sensor after installation on the radiator
Two pin, which are included in the sensor, help set limitations of the minimum and maximum position of the thermoelement.
They are at the bottom of the device:
- To set a limit on a mark, for example "3", you need to pull the limiter and set the sensor readings at the "3" mark. The pin is then inserted into that hole, which in this position turns out to be under the rhombus icon.
- The second restrictive threshold is exhibited in the same way. The handle turns to the desired indicator, only the pin is inserted into the hole, which appears under the triangle icon.
For this:
- Both pins are removed.
- The handle is put on the desired indicator.
- In this position, the first pin is inserted into the hole located under the rhombus.
- The second pin is in the hole under the triangle.
Danfoss thermostators have many positive feedback. This is a very easy-to-use device that does not require any attention after the initial installation and settings. But the result will be more comfortable temperatures in the apartment, as well as in some cases, significant savings budget funds.
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Selection of thermostators for heating radiators
The thermostators installed on heating radiators allow you to increase the comfort of indoors, and also significantly save on heating, if it comes to a private house.
There are several types of devices on the market: electronic, mechanical, gas-filled, liquid, as well as remote or built-in thermal sensors. Our material is dedicated to how to choose and install thermostators to pay attention to first.
Types of regulating elements
Electronic Automatic Danfoss Temperature Management
Installation of a shut-off-regulating crane or a valve in front of the heating radiator - a measure that serves not only to adjust the flow of water into the battery, but also a question of emergency safety, because it becomes possible to turn off the battery from a common riser if necessary. Such a simple and important function was previously not always provided for in heating systems, by the way, not in all new houses installed locking valves on batteries.
As locking and regulating elements are used:
- ball crane
- cone valve
- automatic thermostat.
Ball crane
This is the most minimal measure aimed at creating the ability to disable radiators. This element only performs a locking function, since only two positions are provided with the design - "open" or "closed".
Adjust the heating of the battery with the help of a ball crane is an inefficient practice, since the crane that stands in the middle position is vulnerable to the destructive effect of solid particles. The coolant circulating in the system contains suspension, rust particles and other foreign minor elements (especially this is characteristic of heating systems of apartment buildings).
Gradually, the surface of the crane will be collapsed, removal remains on the shut-off ball, and it means sooner or later it will become not suitable for performing its main function - locking, because the tightness will be broken.
Cone valve
Allows you to adjust the receipt of the coolant into the radiator, so it can be adjusted to the temperature. In general, the installation of a manual cone valve in front of the batteries is inexpensive and functional solution.
The disadvantage in this case will be the complete absence of any marking for adjustment, you will have to determine how to change the position of the valve, do not forget to return it to the original position and so on.
Temperature regulators with thermostat
The most modern and comfortable solution is to install in front of the thermostat radiator with a thermostat that allows you to accurately adjust the degree of heating of the battery, which means that the air temperature is indoors.
Types of thermostators
To date, two types of thermostators are applied:
- Liquid
- Gas-filled
Thermostat design
Device and main thermostat nodes
Thermostat for the radiator has two parts:
- Valve
- Thermostatic element
The thermostatic element is a hollow cylinder, the walls of which are corrugated, this cylinder is called a bellows. The bellows is filled with substance (water or gas), which can react to air temperature fluctuations in the room.
When the temperature rises, the volume of the working substance increases, presses on the walls of the bellows. The bellows moves the rod that shifts the valve. The valve controls the amount of coolant incoming to the battery. When the valve rod moves, the receipt of the coolant decreases.
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The photo shows the types of thermostat
If the air temperature indoors decreases, the volume of the working substance decreases, it no longer stretches the bellows, thereby opening the valve and increasing the flow of the coolant.
The bellows have a large margin of strength and working resource, they can withstand hundreds of thousands of compression cycles for decades. (The Danfoss company cites the data that their bellows are able to work up to 100 years, passing 1 million cycles).
Gas-filled thermostators
Gas-filled thermostators are produced by the Danfoss Danfoss (Danfoss) company, it is a reliable equipment that has more than 20 years of service. The bellows system of the gas-filled thermostatic element, as indicated above, is filled with gas, it allows you to smoothly adjust the air temperature in the room.
The sensor determines the ambient temperature. Each temperature corresponds to a certain level of gas pressure in the bellows, which is backed by the compression of the adjusting spring.
With an increase in the room in the room, the gas pressure in the bellows grows, and the valve cone is shifted towards the closure. This process is due to the gas pressure in the bellows and the springs compression, the balance will not be restored. When the air temperature drops in the room, the gas pressure decreases, as a result of this, the bellows is compressed, and the valve cone is shifted towards the opening until the equilibrium is reached.
Danfoss devices
Examples of models of automatic thermostators Danfoss
RTD series thermostators from Danfoss is gas-filled devices.
Such technical execution gives two serious advantages at once:
- Gas is condensed in the cold half of the sensor, which is further from the control valve. In this case, the radiator thermostat will always determine the temperature fluctuations in the room, and the effect of water temperature in the pipe will be excluded.
- The thermostat is very sensitive and is capable of extremely quickly responding to a change in temperature, so the most effectively controls the flow of heat into the room.
Danfoss company produces two types of thermostators for radiators:
In addition, they can be in a straight or corner performance.
The type of regulator is selected based on the type of heating system in the house, and the valve size is the magnitude of the diameter of the pipe, supplying the coolant or by the diameter of the hole in the heating device's tube.
RTD-G valves in thermostats are used:
- For single-tube heating systems;
- For two-pipe heating systems in apartment buildings;
- For two-pipe systems, without installation circulating pumps, in cottages.
RTD-N valves in thermostats are used:
- For two-pipe heating systems in the new building;
- For two-pipe heating systems of cottages in which circulation pumps are installed.
Average prices for Danfoss thermostators (Danfoss)
The table shows the average prices for which at the moment you can buy thermostators for Danfoss heating radiators (Denmark).
The model number and short technical descriptionThe cost is indicated in rubles (may vary, depending on the course).
| RA 2994. | With a gas-filled built-in temperature sensor | 5-26 | 1520 |
| RA 2992. | With a gas-filled withdrawal temperature sensor | 5-26 | 2320 |
| RA 2920. | With a gas-filled integrated temperature sensor and a protective casing from unauthorized interference | 5-26 | 2240 |
| RA 2922. | With a gas-filled remote temperature sensor and a protective casing from unauthorized interference | 5-26 | 3200 |
| RA 2940. | With a gas-filled built-in temperature sensor, with the overlap function | 0-26 | 1600 |
| RA 5062. | Remote control, with a liquid built-in temperature sensor (2 m) | 8-28 | 4720 |
| RA 5065. | Remote control, with a liquid built-in temperature sensor (5 m) | 8-28 | 5080 |
| RA 5068. | Remote control, with a liquid built-in temperature sensor (8 m) | 8-28 | 6200 |
| RA 5070. | Remote control, with liquid built-in temperature sensor (10 m) | 8-28 | 6240 |
| RA 5072. | Remote control, with a liquid built-in temperature sensor (12 m) | 8-28 | 6880 |
| RA 5075. | Remote control, with liquid built-in temperature sensor (15 m) | 8-28 | 7920 |
| RA 5074. | Remote control, with liquid remote temperature sensor | 8-28 | 6720 |
| RAW 5010. | With a liquid built-in temperature sensor | 8-28 | 1440 |
| RAW 5012. | With liquid remote temperature sensor | 8-28 | 2000 |
| RAW 5110. | With liquid built-in temperature sensor, with overlapping function | 0–28 | 1520 |
| FTC. | With a liquid remote temperature sensor for regulating the water temperature in the systems of internal heating | 15–50 | 4960 |
| Ra-Plus. | Programmable, with a liquid built-in temperature sensor | 8–28 | 8080 |
| Rax White | With a liquid built-in temperature sensor. Disener version, white (RAL 9010) | 8-28 | 2160 |
| Rax black | With a liquid built-in temperature sensor. Disease version, black (RAL 9005) | 8-28 | 2240 |
| Rax chrome plated | With liquid built-in temperature sensor. Disease version, chrome | 8-28 | 2400 |
| RAX steel | With a liquid built-in temperature sensor. Diseane version, steel | 8-28 | 3040 |
Installation of regulator
The process of installing thermostators on the radiator in the house is not complicated, if desired, it can be done with your own hands. If there is no experience or desire, you can always turn to professional installers.
Video Instructions for installing the thermostat for the radiator on the example of the automatic electronic regulator Danfoss Living ECO:
The sequence of actions will be the same, regardless of metal, from which the batteries are made, the principle one and for aluminum and for bimetallic radiators.
Removing the old collar
Installing a new collar
It is necessary to install a new set of metal collar and a deaf nut on copper pipe, old are dismantled. If the collar cannot be removed, then its parts are neatly cut out with a small screwdriver, after which they can be torn apart from each other. Since it is necessary to work with a screwdriver and hacksaw directly and the pipes should be kept attentiveness.
After completing the installation, adjust the desired temperature on the thermostat.
Usually for living rooms or passing premises, the regulator is left completely open, for sleeping rooms you can half-handed it. If in different rooms At home - different settings of thermostators, then you should keep the door to the rooms with closed, otherwise the device will incorrectly determine the air temperature in the room and try to align it.
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Calculation of the required power of radiators and number of sections
What to choose: gas or liquid?
This question is perhaps one of the most frequently discussed among consumers and installers. Technically, the bellows filled with gas faster react to fluctuations in air temperature fluctuations. In this case, liquid devices are more accurate when transmitting the internal pressure of the bellows on the movable mechanism.
Thus, it is difficult to answer unequivocally which bellows are better. When choosing, first of all, it is necessary to focus on the quality of manufacture, warranty and service life. This means choosing from the products of proven manufacturers, the technical solution can be secondary in importance.
Advantages of Danfoss thermostatic regulators
- Danfoss thermostats for radiators have a number of benefits:
- The body of the device has a modern ergonomic design;
- A high-quality and concise appearance will allow them to fit into any interior;
- Thermostats can be installed on existing heating systems;
- Do not need prevention or maintenance;
- Not whimsical, can work in the conditions of domestic heating systems;
- Has a long service life;
- Provide accurate temperature adjustment in rooms (6-26 degrees);
Benefit from installing thermostats
Electric thermostat for heating radiator
When installing thermostators on radiators in a private house or cottage, saving on heating up to 20% is achieved. This is due to the reduction of excess heat consumption during the periods, when it is not necessary - warm and sunny days, with the operation of electrical appliances, and so on.
The thermostat allows you to maintain a healthy microclimate in the rooms, since the air does not overheat. It provides comfort in the house, protects against sinking wooden furniture and extends the service life of sensitive technology.
For some types of fuels used in private homes and cottages (for example, diesel fuel), the cost of installation of thermostators will be compensated for one heating season.
Save the owners of apartments is unlikely to succeed. But an important profit will be a comfortable environment in the rooms.
Types of thermostatic elements
There are two types of thermostatic elements:
- Thermostatic element with built-in sensor
- Thermostatic element with remote sensor
Built-in temperature sensor
Remote temperature sensor
Built-in sensor requires free air circulation around itself. This is necessary to prevent heat from the pipe. To avoid unwanted heating, the sensor is installed horizontally.
Remote sensor
- Remote temperature sensor is used in the following cases:
- If the radiator (respectively, the thermostat is set to niche;
- If the regulator is located less than 10 cm from a wide window sill (more than 22 cm);
- With the radiator depth of over 16 cm;
- If the axis of the thermostatic element is in a vertical position;
- If the radiator is closed with dense curtains.
In these and some other cases, a remote sensor should be installed, since the built-in will not be able to work correctly.
The sensor must be installed perpendicular to the radiator body. Since in the case of a parallel installation, its testimony will be shot down by the action of warm air raising from the radiator.
Conclusion
When choosing radiators, thermostators and in general, the heating system should be referred to specialists. It is preferable to deal with professional companies, as they bear legal responsibility for the quality of the work performed and the equipment sold.
Not a small role is also played by the warranty and warranty service.
Savings, when using individuals' services, often increasingly comes out of all works, and the cost of eliminating the consequences of the accident in the heating system may be very impressive.
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Thermal heads Temperature controls for danfoss heating batteries
The heating system is one of the most important details Any house. Unfortunately, it is for her who goes and the greatest costs during payment municipal payments, Moreover, regardless of the installed autonomous or centralized heating. Get a comfortable temperature and significantly reduce the costs of paying bills for the consumed heat energy help thermostats installed on each radiator battery. Effect can be obtained by installing temperature regulators for Danfoss heating batteries capable of 1 degree to maintain the required temperature in the room.Principle of operation and design
Danfoss thermostats are necessary to maintain the room temperature. In the process of operation, thermostators track the temperature change in the room using the built-in heat sensors. When the temperature drops, the thermocontrol system opens the fence of the coolant, increasing its volume and circulation inside the battery. After reaching a given temperature, thermostat Danfoss. Reduces the flow of the coolant, thereby reducing the heating temperature and energy consumption in the heating device. Equipment consists of two main components:- Thermostatic element is responsible for controlling the device.
- Valve regulating the return of the coolant into the radiator. Performing element.
Differences of some models
Depending on the model, the installed thermostat can be divided according to the principle of operation and constructive features.- Supported temperature ranges from 5 to 30.
- Option of temperature measurement sensor - it can be built-in, remotely controlled and programmable.
- Different in the installation type - angular, straight, for the lower or top-type connection.
Direct heat regulators on the Danfoss battery are most popular, their design allows you to connect batteries from the bottom, upper and side lining. The only thing to take into account is the length of the shut-off valve and, accordingly, select the length mounting pipes. The possibility of implementing any type of connection is carried out due to the rod located along the shank axis. Model designation of such equipment RTD-N UK. The wide range of valve installations of the UK model, allow them to be used in conjunction with Danfoss convectors built into the floor. Harl thermostators are attached directly to the point of fence of the coolant radiator and require minimum of additional installation work, do not occupy an excess place. Such sensors are labeled as RTD - N or RTD - G, depending on the model. Increased bandwidth It gives the opportunity to use thermoclap in closed and open heating systems. Another type of temperature regulators for Danfoss heating batteries is an embodiment in the radiator. Such equipment is widely used in compact devices located in niches, close to side surfaces. Often embedded valves are equipped with remote thermostators. Installing and Setting the Sensor
Installing automatic thermostators for Danfoss radiators, instructions should be clearly followed. It is not recommended to place the head of the regulator for bulk objects, behind the curtains or inside the niche. This will lead to distorted measurements, as a result of creating obstacles to uniform air flow around the sensor. If the installation of the thermal heads for Danfoss RTD 3640 radiators or other similar models is impossible due to the hidden battery location, it is necessary to take care of an external remote sensor.Despite the possibility of mounting thermostators in almost any heating system, sharing them S. cast-iron batteries Do not bring the expected results due to slow cooling and slow heating of the battery.
The installation of the thermostat should be carried out only by professionals, in order to avoid further problems and improper functioning. The setting of temperature regulators for Danfoss heating batteries is carried out once, at the beginning of each heating season. For proper setting It is necessary to reduce the heat loss of the room as much as possible, for which the windows and doors are closed. Then a regular room thermometer is installed in the center and the thermostat locking valve opens as much as possible. After the room, the room temperature becomes somewhat exceeding the one you consider the most comfortable, the valve must be fully closed. In the process of gradual cooling air, the temperature will begin to decline and as soon as it reaches the thermostat you need to be gradually open until the coolant is in the system. Usually, just audible as water or other liquid coolant begins to circulate inside the radiator. For sensors equipped with electronic adjustment, it is sufficient to simply select the desired heating temperature and fix it in the program. If necessary, the temperature is easily changed directly during the work. After the completion of the heating season, the radiator temperature regulators of heating radiator Danfoss is recommended to be left in the maximum open position, for circulation inside the valve and reducing the possibility of a blockage.
The cost of heating and ventilation averages 30-50% of the family budget. And the problem is not in the function itself, but in poor-quality energy spending. Convenient solution Offered Danfoss - thermostat to control the temperature in the house and the operation of the heating system. This device can be applied in combination with almost all boilers, including heating devices with a liquid coolant.
The thermal head of the house, in the apartment, production rooms, warehouses, closed greenhouses and greenhouses, in a word, wherever relatively constant temperature regime is required. Moreover, this applies not only heating, but also air conditioning. So, the thermal head is equally successfully interacting with air conditioning, refrigerated equipment and other aggregates responsible for temperature.
Constructive features
The main purpose of the Danfoss thermostat is to long-term maintaining the temperature-selected temperature regime. The design of the device includes two main details:
- the thermostatic element or how else is called - thermostat;
- valve.
The valve is first mounted on the battery and only the thermostat is already installed on it. It is the second element that is the main thing in the design of the device. It seals the ambient temperature, after which it gives the required signal to the valve, which in turn opens or covers the coolant stream.
In the inner region of the Danfoss thermostat, there is a bellows - a corrugated container filled with gas or liquid. When exposed to temperature, the filler begins to change the dimensions and apply to the shut-off valve. When overlapping the coolant flow in heating units, the temperature indicator begins to increase.
If the room is highly cooled, the filler is compressed and the reverse reaction is formed - the chamber pulls the spool rod, which in turn opens in the valve element the clearance for the receipt of the coolant in the valve element.
The company produces two varieties of thermostat - on gas and liquid. But the second option is considered more inert, it significantly slowly gives a signal to change the temperature regime.
Varieties and conditional designations of devices
The type of filler and purpose is determined by the following abbreviation:
- RTS - Liquid Silphon
- RTD-G - gas device for a single-tube or two-pipe system in which there is no pump
- RTD-N - gas device For a single-tube, two-pipe pumping system
In some models, in addition to the main function, there are a number of additional options. For example, an interference protection program in the set settings by random persons. The option will be convenient for installation in public institutions or children's institutions. The number of modes and varieties of functions differ depending on the selected modification.
Model range of devices
The company produces a fairly wide range of Danfoss heating temperature regulators.
The most popular variations are considered:
- Danfoss RDT marking 3640 - the device is designed to use on the heating systems of a two-pipe standard type. It is equipped with an RTD option, excluding the line of highway in the cold season. Used in domestic, industrial conditions. It has four divisions with the designations in the form of Roman numbers.
- The Danfoss RAX regulator is a liquid type of appliances that is used for installation on designer-type radiators or towel rails. It has attractive external parameters and minimalistic style. Only divisions with Roman or Arabic figures are present on the housing.
- Living Eco with microclimate tracking function in the house. This is an improved series, which is successfully applied in commercial institutions and residential buildings. The peculiarity of the thermostat for the heating radiator is that it has a liquid crystal screen that reports all the necessary information about the coolant. Also on the case there are three main modes setting keys.
- The Danfoss RA-299 gas device with automated temperature control is produced in several color solutions. It quickly reacts to temperature change. It is used exclusively for equipping traditional heating systems.
- 013 G4 001-013 G4 009 - Multifunctional series of devices, suitable for both heated towel rails and various sections of the heating device. There are left and right-hand type.
Each of the presented options is completed with the details that simplify the mounting of the device and its subsequent use.
Video: Danfoss thermostatic kits review
Installation of thermal heads
The Danfoss thermostat is installed directly on the "hot" pipe that supplies the coolant into the household heating system. Mounting works do not have any difficulties, even if it concerns design variations, the principle of installation in all the same.
It is necessary to follow the following steps:
- Marking on the feed pipe to determine the area you want to cut. At the same time, take into account the dimensions of the valve body and take the threaded element to enter directly into the pipe.
- Disconnect the heating and lower the water so that in the process of work do not flood the house.
- By markers, cut the unnecessary pipe of the pipe and make a thread with a dice on the outer part of the cut.
- The connecting part is treated with a special plumbing paste of any manufacturer and waist.
- On the thread, which was made by a rash, screw the valve element, after which tighten the washer well. Additionally, sealing the area of \u200b\u200bthe joint is no longer required, this compound will be enough for the pipe to not leakage.
- Remove the fuse, set the maximum "5" maximum indicator on the thermostat and above the end of the housing with the scale. The cap is put on to the stop, the decisive signal service a ringing click, it indicates a dense contact of the parts.
- Check all connections and connect the thermal device back to the overall heating system.
Check the functioning of the Danfos regulator to the first opening and closing the valve device. If the installation was carried out according to the rules, there should be no problems.
How to adjust the device
Although all modifications of Danfoss thermostats and have differences on external parameters, specifications, the device setting is done by the same method. To make it necessary to refer to the instruction manual and study the designations of the modes indicated on the device case. Indicators may have differences, depending on which model is used.
Next, install the desired temperature mode on the machine. To do this, move the torque to the desired mode. If a device with a button control was installed, all manipulations are carried out by pressing the "Add" or "down" keys to the "Add" keys.
You can also select an intermediate parameter if it is more suitable for creating a specific microclimate in the house. After a few minutes, the heating system is adjusted for selected values \u200b\u200band will reproduce the heating of the room until the desired microclimate is obtained. The valve and refrigeration units are configured in the same way.
Video: How to install the thermal head on the radiator
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