There are certain patterns according to which the temperature of the coolant changes in central heating. In order to adequately track these fluctuations, there are special graphs.

Causes of temperature changes

To begin with, it is important to understand a few points:

1. When weather conditions change, this automatically entails a change in heat loss. When cold weather sets in, to maintain the home optimal microclimate an order of magnitude more thermal energy is spent than during the warm period. In this case, the level of heat consumed is not calculated by the exact temperature of the street air: for this, the so-called. "delta" of the difference between the street and the interior. For example, +25 degrees in an apartment and -20 outside its walls will entail exactly the same heat costs as at +18 and -27, respectively.
2. Constancy heat flow from heating batteries ensures a stable coolant temperature. As the temperature in the room decreases, there will be a slight rise in the temperature of the radiators: this is facilitated by an increase in the delta between the coolant and the air in the room. In any case, this will not be able to adequately compensate for the increase in heat losses through the walls. This is explained by setting limits for the lower temperature limit in the home current SNiP at +18-22 degrees.

It is most logical to solve the problem of increasing losses by increasing the temperature of the coolant. It is important that its increase occurs parallel to the decrease in air temperature outside the window: the colder it is there, the greater the heat loss that needs to be replenished. To facilitate orientation in this matter, at some stage it was decided to create special tables for reconciling both values. Based on this, we can say that the temperature graph of the heating system means the derivation of the dependence of the level of water heating in the supply and return pipelines in relation to the temperature conditions outside.

Features of the temperature graph

The above graphs come in two varieties:

1. For heat supply networks.
2. For heating system inside the house.

To understand how both of these concepts differ, it is advisable to first understand the features of the work central heating.

Connection between CHP and heating networks

The purpose of this combination is to communicate the proper heating level to the coolant, followed by its transportation to the place of consumption. Heating mains are usually several tens of kilometers long, with a total surface area of ​​tens of thousands square meters. Although the main networks are subject to careful thermal insulation, it is impossible to do without heat loss.

As you move between the thermal power plant (or boiler room) and the living quarters, some cooling is observed process water. The conclusion itself suggests itself: in order to convey to the consumer an acceptable level of heating of the coolant, it must be supplied inside the heating main from the thermal power plant in the maximum heated state. The rise in temperature is limited by the boiling point. It can be shifted towards higher temperatures if the pressure in the pipes is increased.

The standard pressure indicator in the supply pipe of the heating main is within 7-8 atm. This level, despite the pressure loss during coolant transportation, makes it possible to ensure efficient operation heating system in buildings up to 16 floors high. In this case, additional pumps are usually not needed.

It is very important that such pressure does not create a danger for the system as a whole: routes, risers, connections, mixing hoses and other components remain operational long time. Taking into account a certain margin for the upper limit of the supply temperature, its value is taken as +150 degrees. The most standard temperature curves for supplying coolant to the heating system range between 150/70 - 105/70 (supply and return temperatures).

Features of coolant supply to the heating system

The home heating system is characterized by a number of additional restrictions:

• The maximum heating value of the coolant in the circuit is limited to +95 degrees for a two-pipe system and +105 for a single-pipe heating system. It should be noted that preschool educational institutions are characterized by the presence of more stringent restrictions: there the temperature of the batteries should not rise above +37 degrees. To compensate for this decrease in supply temperature, it is necessary to increase the number of radiator sections. The interiors of kindergartens located in regions with particularly harsh climatic conditions are literally crammed with batteries.
• It is advisable to achieve a minimum temperature delta of the heating supply schedule between the supply and return pipelines: otherwise, the degree of heating of the radiator sections in the building will have a big difference. To do this, the coolant inside the system must move as quickly as possible. However, there is a danger here: due to high speed circulation of water inside the heating circuit, its outlet temperature back into the route will be excessively high. As a result, this can lead to serious disruptions in the operation of the thermal power plant.

Influence of climatic zones on outside air temperature

The main factor that directly influences the preparation of the temperature schedule for the heating season is the calculated winter temperature. As the compilation proceeds, they try to ensure that the highest values ​​(95/70 and 105/70) at maximum frosts guarantee the required SNiP temperature. The outside air temperature for heating calculations is taken from a special table of climatic zones.

Adjustment features

The parameters of heating routes are the responsibility of the management of thermal power plants and heating networks. At the same time, housing office employees are responsible for the network parameters inside the building. Mostly, residents' complaints about the cold concern deviations to the lower side. Much less common are situations where measurements inside thermal units indicate elevated temperature return lines

There are several ways to normalize system parameters that you can implement yourself:

• Reaming the nozzle. The problem of lowering the temperature of the liquid in the return can be solved by expanding the elevator nozzle. To do this, you need to close all the gates and valves on the elevator. After this, the module is removed, its nozzle is pulled out and drilled out 0.5-1 mm. After assembling the elevator, it is started to bleed air into reverse order. It is recommended to replace the paronite seals on the flanges with rubber ones: they are made to the size of the flange from a car inner tube.
• Choke suppression. In extreme cases (during the onset of extremely low frosts), the nozzle can be completely removed. In this case, there is a danger that the suction will begin to act as a jumper: to prevent this, it is turned off. For this, a steel pancake with a thickness of 1 mm is used. This method is emergency, because this can cause a jump in battery temperature to +130 degrees.
• Differential control. A temporary way to solve the problem of temperature rise is to adjust the differential with an elevator valve. To do this, it is necessary to redirect the DHW to the supply pipe: the return pipe is equipped with a pressure gauge. The inlet valve of the return pipeline is completely closed. Next, you need to open the valve little by little, constantly checking your actions with the readings of the pressure gauge.

A simply closed valve can cause the circuit to stop and defrost. A reduction in the difference is achieved due to an increase in return pressure (0.2 atm/day). The temperature in the system must be checked every day: it must correspond to the heating temperature schedule.

There are a number of patterns on the basis of which the temperature of the coolant in central heating changes. To track fluctuations, there are special graphs called temperature graphs. What they are and what they are needed for needs to be understood in more detail.

What is a temperature chart and its purpose?

The temperature graph of a heating system is the dependence of the temperature of the coolant, which is water, on the temperature of the outside air.

The main indicators of the graph under consideration are two values:

1. The temperature of the coolant, that is, the heated water that is supplied to the heating system to heat residential premises.
2. Outdoor air temperature readings.

The lower the ambient temperature, the more it is necessary to heat the coolant that is supplied to the heating system. The schedule under consideration is constructed when designing heating systems for buildings. It influences indicators such as size heating devices, coolant flow in the system, as well as the diameter of the pipelines through which the coolant is transferred.

The temperature graph is indicated using two numbers, which are 90-70 degrees. What does this mean? These numbers characterize the temperature of the coolant that must be supplied to the consumer and returned back. To create comfortable conditions indoors in winter period at an outside air temperature of -20 degrees, you need to supply coolant to the system with a value of 90 degrees Celsius, and return with a value of 70 degrees.

Temperature graph allows you to determine whether the coolant flow rate is too high or low. If the temperature of the returned coolant is too high, this will indicate a high flow rate. If the value is underestimated, this indicates a consumption deficit.

The 95-70 degree schedule for the heating system was adopted in the last century for buildings up to 10 floors. If the number of floors in a building exceeds 10 floors, then the values ​​taken were 105-70 degrees. Modern heat supply standards for each new building are different, and are often adopted at the discretion of the designer. Modern standards for insulated houses are 80-60 degrees, and for buildings without insulation 90-70.

Why do temperature fluctuations occur?

The reasons for temperature changes are determined by the following factors:

1. When weather conditions change, heat loss automatically changes. When cold weather sets in, to ensure an optimal microclimate in apartment buildings it is necessary to expend more thermal energy than during warming. The level of heat loss consumed is calculated by the “delta” value, which is the difference between the street and indoors.
2. The constancy of the heat flow from the batteries is ensured by a stable temperature of the coolant. As soon as the temperature decreases, apartment radiators will become increasingly warmer. This phenomenon is facilitated by an increase in the “delta” between the coolant and the air in the room.

The increase in coolant losses must be carried out in parallel with the decrease in air temperature outside the window. The colder it is outside, the higher the temperature of the water in the heating pipes should be. To facilitate the calculation processes, a corresponding table has been adopted.

What is a temperature graph

The temperature graph for coolant supply to heating systems is a table that lists the coolant temperature values ​​depending on the outside air temperature.

A generalized graph of water temperature in the heating system is as follows:

The formula for calculating the temperature graph is as follows:

• To determine the coolant supply temperature: T1=tin+∆xQ(0.8)+(β-0.5xUP)xQ.
• To determine the return supply temperature, the formula is used: T2=tin+∆xQ(0.8)-0.5xUPxQ.

In the presented formulas:

Q – relative heating load.

∆ is the temperature pressure of the coolant supply.

β – temperature difference in forward and reverse supply.

UP is the difference in water temperature at the inlet and outlet of the heating device.

There are two types of graphs:

• For heating networks.
• For apartment buildings.

To understand the details, let’s consider the features of the functioning of centralized heating.

CHP and heating networks: what is the relationship

The purpose of thermal power plants and heating networks is to heat the coolant to a certain value, and then transport it to the place of consumption. It is important to take into account the losses on the heating main, the length of which is usually 10 kilometers. Despite the fact that all water supply pipes are thermally insulated, it is almost impossible to avoid heat losses.

When the coolant moves from a thermal power plant or simply a boiler house to the consumer (apartment building), a certain percentage of water cooling is observed. To ensure the supply of coolant to the consumer at the required standardized value, it is required to be supplied from the boiler room in the maximum heated state. However, it is impossible to increase the temperature above 100 degrees, since it is limited by the boiling point. However, it can be shifted towards increasing the temperature value by increasing the pressure in the heating system.

The pressure in the pipes according to the standard is 7-8 atmospheres, however, when the coolant is supplied, a loss of pressure also occurs. However, despite the pressure loss, a value of 7-8 atmospheres allows for efficient operation of the heating system even in 16-story buildings.

This is interesting! The pressure in the heating system of 7-8 atmospheres is not dangerous for the network itself. All structural elements remain operational in normal mode.

Taking into account the reserve of the upper temperature threshold, its value is 150 degrees. The minimum supply temperature at sub-zero temperatures outside the window is not below 9 degrees. The return temperature is usually 70 degrees.

How coolant is supplied to the heating system

The following restrictions apply to the home heating system:

1. The maximum heating indicator is determined by a limited value of +95 degrees for a two-pipe system, as well as 105 degrees for a single-pipe network. In preschool educational institutions, stricter restrictions apply. The water temperature in the battery should not rise above 37 degrees. To compensate for the reduced temperature, additional sections of radiators are built up. Kindergartens that are located directly in regions with harsh climatic zones, are equipped with a large number of radiators with numerous sections.
2. The best option is to achieve the minimum “delta” value, which represents the difference between the supply and return values ​​of the coolant temperature. If you do not achieve this value, then the degree of heating of the radiators will have a large difference. To reduce the difference, it is necessary to increase the speed of the coolant. However, even with an increase in the speed of movement of the coolant, significant drawback, which is due to the fact that water will be returned back to the thermal power plant with excessive high temperature. This phenomenon can lead to disruptions in the functioning of the thermal power plant.

To get rid of such a problem, you should apartment building install elevator modules. Through such devices, a portion of supply and return water is diluted. This mixture will allow for accelerated circulation, thereby eliminating the possibility of excessive overheating of the return pipeline.

If an elevator is installed in a private house, then the accounting of the heating system is set using an individual temperature schedule. Two-pipe heating systems in a private house are characterized by 95-70 degrees, and single-pipe heating systems by 105-70 degrees.

How climate zones affect air temperature

The main factor that is taken into account when calculating the temperature schedule is presented in the form of the calculated temperature in winter. When calculating heating, the outside air temperature is taken from a special table for climatic zones.

Table temperature coolant should be compiled so that its maximum value satisfies the SNiP temperature in residential premises. For example, we use the following data:

• As heating devices Radiators are used that supply coolant from bottom to top.
• The type of apartment heating is two-pipe, equipped with a parking pipe distribution.
• The calculated values ​​of the outside air temperature are -15 degrees.

In this case we receive the following information:

• Heating will be started when the average daily temperature does not exceed +10 degrees for 3-5 days. The coolant supply will be carried out at a value of 30 degrees, and the return will be equal to 25 degrees.
• When the temperature drops to 0 degrees, the coolant value increases to 57 degrees, and the return flow will be 46 degrees.
• At -15, water will be supplied at a temperature of 95 degrees, and the return will be 70 degrees.

This is interesting! When determining the average daily temperature, information is taken from both daytime thermometer readings and nighttime measurements.

How to regulate temperature

CHP workers are responsible for the parameters of heating mains, but monitoring of networks inside residential buildings is carried out by employees of the housing office or management companies. The Housing Office often receives complaints from residents that their apartments are cold. To normalize the system parameters, you will need to take the following measures:

• Increasing the nozzle diameter or installing an elevator with adjustable nozzle. If there is an underestimated value of the liquid temperature in the return, then this problem can be solved by increasing the diameter of the elevator nozzle. To do this, you need to close the latches and valves, and then remove the module. The nozzle is enlarged by drilling it by 0.5-1 mm. After completing the procedure, the device is returned to its place, after which the procedure of bleeding air from the system must be carried out.

• Stop the choke. To avoid the threat of the suction pump performing the function of a jumper, it is silenced. To perform this procedure, a steel pancake is used, the thickness of which should be about 1 mm. This method of temperature control belongs to the category of emergency options, since when it is carried out, it is possible that a temperature jump of up to +130 degrees may occur.

• Regulation of differences. The problem can be resolved by adjusting the differences with an elevator valve. The essence of this correction method is to redirect the hot water to the supply pipe. A pressure gauge is screwed into the return pipe, after which the valve of the return pipeline is closed. When opening the valve, you need to check the pressure gauge readings.

If you install a conventional valve, this will lead to the system stopping and freezing. To reduce the difference, you need to increase the return pressure to 0.2 atm/day. You can find out what temperature the batteries should be based on the temperature graph. Knowing its value, you can check to ensure its compliance with the temperature regime.

In conclusion, it should be noted that options for damping suction and regulating differences are used exclusively in the development of critical situations. Knowing this minimum of information, you can contact the housing office or thermal power plant with complaints and wishes about the coolant in the system that does not meet the standards.

The basis for an economical approach to energy consumption in a heating system of any type is the temperature schedule. Its parameters indicate optimal value heating water, thereby optimizing costs. In order to apply this data in practice, it is necessary to learn in more detail the principles of its construction.

Terminology

Temperature graph – the optimal value of heating the coolant to create a comfortable temperature in the room. It consists of several parameters, each of which directly affects the quality of operation of the entire heating system.

1. Temperature in the inlet and outlet pipes of the heating boiler.
2. The difference between these coolant heating indicators.
3. Temperature indoors and outdoors.

The latter characteristics are decisive for the regulation of the first two. Theoretically, the need to increase the heating of water in the pipes occurs when the temperature outside decreases. But how much do you need to increase so that the heating of the air in the room is optimal? To do this, draw up a graph of the dependence of the parameters of the heating system.

When calculating it, the parameters of the heating system and the residential building are taken into account. For central heating, the following system temperature parameters are accepted:

• 150°C/70°C. Before reaching the users, the coolant is diluted with water from the return pipe to normalize the incoming temperature.
• 90°C/70°C. In this case, there is no need to install equipment for mixing the flows.

According to current system parameters utility services must ensure compliance with the heating value of the coolant in the return pipe. If this parameter is less than normal, it means that the room is not heated properly. Exceeding indicates the opposite - the temperature in the apartments is too high.

Temperature chart for a private house

The practice of drawing up such a schedule for autonomous heating is not very developed. This is explained by its fundamental difference from the centralized one. The water temperature in the pipes can be controlled manually or automatically. If the design and practical implementation took into account the installation of sensors for automatic regulation operation of the boiler and thermostats in each room, then there will be no urgent need to calculate the temperature schedule.

But it will be indispensable for calculating future expenses depending on weather conditions. In order to draw it up in accordance with the current rules, the following conditions must be taken into account:

Only after these conditions have been met can we proceed to the calculation part. Difficulties may arise at this stage. Correct calculation of an individual temperature schedule is a complex mathematical scheme that takes into account all possible indicators.

However, to make the task easier, there are ready-made tables with indicators. Below are examples of the most common operating modes heating equipment. The following input data were taken as initial conditions:

• Minimum air temperature outside – 30°C
• The optimal room temperature is +22°C.

Based on these data, schedules were drawn up for the following types of operation of heating systems.

It is worth remembering that these data do not take into account the design features of the heating system. They only show the recommended temperature and power values ​​of heating equipment depending on weather conditions.

The temperature graph represents the dependence of the degree of heating of water in the system on the temperature of the cold outside air. After the necessary calculations, the result is presented in the form of two numbers. The first means the water temperature at the entrance to the heating system, and the second at the exit.

For example, the entry 90-70ᵒС means that under given climatic conditions, to heat a certain building, the coolant at the entrance to the pipes will need to have a temperature of 90ᵒС, and at the exit 70ᵒС.

All values ​​are presented for outside air temperature for the coldest five-day period. This design temperature accepted according to joint venture " Thermal protection buildings." According to the standards, the internal temperature for residential premises is 20ᵒC. The schedule will ensure the correct supply of coolant to the heating pipes. This will avoid overcooling of the premises and waste of resources.

The need to perform constructions and calculations

A temperature schedule must be developed for each locality. It allows you to ensure the most competent operation of the heating system, namely:

1. Bring into compliance heat losses during submission hot water in houses with average daily outside air temperature.
2. Prevent insufficient heating of rooms.
3. Oblige thermal stations to supply consumers with services that meet technological conditions.

Such calculations are necessary both for large heating stations and for boiler houses in small towns. In this case, the result of calculations and constructions will be called a boiler room schedule.

Methods for regulating temperature in a heating system

Upon completion of the calculations, it is necessary to achieve the calculated degree of heating of the coolant. This can be achieved in several ways:

• quantitative;
• quality;
• temporary.

In the first case, the flow of water entering the heating network is changed, in the second, the degree of heating of the coolant is adjusted. The temporary option involves a discrete supply of hot liquid to the heating network.

For central system heat supply is most characteristic of a high-quality method, in which the volume of water entering the heating circuit remains unchanged.

Types of charts

Depending on the purpose of the heating network, the implementation methods differ. The first option is a normal heating schedule. It represents constructions for networks that operate only for space heating and are centrally regulated.

The increased schedule is calculated for heating networks that provide heating and hot water supply. It's being built for closed systems and shows the total load on the hot water supply system.

The adjusted schedule is also intended for networks operating for both heating and heating. This takes into account heat losses as the coolant passes through the pipes to the consumer.

Drawing up a temperature chart

The drawn straight line depends on the following values:

• normalized indoor air temperature;
• outside air temperature;
• degree of heating of the coolant when entering the heating system;
• degree of heating of the coolant at the exit from the building networks;
• degree of heat transfer from heating devices;
• thermal conductivity of external walls and total heat losses of the building.

To perform a competent calculation, it is necessary to calculate the difference between the water temperatures in the forward and return pipes Δt. The higher the value in a straight pipe, the better the heat transfer of the heating system and the higher the indoor temperature.

In order to rationally and economically use the coolant, it is necessary to achieve the minimum possible value of Δt. This can be achieved, for example, by carrying out work on additional insulation of the external structures of the house (walls, coverings, ceilings above a cold basement or technical underground).

Heating mode calculation

First of all, it is necessary to obtain all the initial data. Standard values ​​of external and internal air temperatures are adopted according to the joint venture “Thermal protection of buildings”. To find the power of heating devices and heat losses, you will need to use the following formulas.

Heat losses of the building

The initial data in this case will be:

• thickness of external walls;
• thermal conductivity of the material from which the enclosing structures are made (in most cases indicated by the manufacturer, denoted by the letter λ);
• surface area of ​​the outer wall;
• climatic region of construction.

First of all, find the actual resistance of the wall to heat transfer. In a simplified version, it can be found as the quotient of the wall thickness and its thermal conductivity. If the outer structure consists of several layers, find the resistance of each of them separately and add the resulting values.

Thermal losses of walls are calculated using the formula:

Q = F*(1/R 0)*(t indoor air -t outdoor air)

Here Q is the heat loss in kilocalories, and F is the surface area of ​​the external walls. For a more accurate value, it is necessary to take into account the glazing area and its heat transfer coefficient.

Battery Surface Power Calculation

Specific (surface) power is calculated as the quotient maximum power device in W and heat transfer surface area. The formula looks like this:

P ud = P max /F act

Coolant temperature calculation

Based on the obtained values, it is selected temperature regime heating and direct heat transfer is built. The values ​​of the degree of heating of the water supplied to the heating system are plotted on one axis, and the outside air temperature on the other. All values ​​are taken in degrees Celsius. The calculation results are summarized in a table in which the nodal points of the pipeline are indicated.

Carrying out calculations using this method is quite difficult. To perform competent calculations, it is best to use special programs.

For each building, this calculation is performed individually. management company. To approximately determine the water entering the system, you can use existing tables.

1. For large heat energy suppliers, coolant parameters are used 150-70ᵒС, 130-70ᵒС, 115-70ᵒС.
2. For small systems for several apartment buildings, the following parameters are used: 90-70ᵒС (up to 10 floors), 105-70ᵒС (over 10 floors). A schedule of 80-60ᵒC can also be adopted.
3. When settling in autonomous system heating for individual house It is enough to control the degree of heating using sensors; you don’t need to build a schedule.

The measures taken make it possible to determine the parameters of the coolant in the system at a certain point in time. By analyzing the coincidence of the parameters with the graph, you can check the efficiency of the heating system. The temperature chart table also indicates the degree of load on the heating system.

After installing the heating system, it is necessary to adjust the temperature regime. This procedure must be carried out in accordance with existing standards.

The coolant temperature requirements are set out in regulatory documents, which establish the design, installation and use engineering systems residential and public buildings. They are described in the State Building Codes and Rules:

• DBN (V. 2.5-39 Heat networks);
• SNiP 2.04.05 “Heating, ventilation and air conditioning.”

For the calculated supply water temperature, the figure is taken that is equal to the water temperature at the outlet of the boiler, according to its passport data.

For individual heating deciding what the coolant temperature should be should take into account the following factors:

1. Start and end heating season By average daily temperature outside +8 °C for 3 days;
2. The average temperature inside heated premises of housing, communal and public importance should be 20 °C, and for industrial buildings 16 °C;
3. The average design temperature must comply with the requirements of DBN V.2.2-10, DBN V.2.2.-4, DSanPiN 5.5.2.008, SP No. 3231-85.

According to SNiP 2.04.05 “Heating, ventilation and air conditioning” (clause 3.20), the coolant limit values ​​are as follows:

Depending on the external factors, the water temperature in the heating system can be from 30 to 90 °C. When heated above 90 °C, dust and paintwork. For these reasons sanitary standards more heating is prohibited.

For calculation optimal performance Special graphs and tables can be used that define the norms depending on the season:

• With an average reading outside the window of 0 °C, the supply for radiators with different wiring is set at 40 to 45 °C, and the return temperature at 35 to 38 °C;
• At -20 °C, the supply is heated from 67 to 77 °C, and the return rate should be from 53 to 55 °C;
• At -40 °C outside the window, all heating devices are set to the maximum permissible values. On the supply side it is from 95 to 105 °C, and on the return side it is 70 °C.

Optimal values ​​in an individual heating system

H2_2

Heating system helps to avoid many problems that arise with centralized network, A optimal temperature The coolant can be adjusted according to the season. In the case of individual heating, the concept of standards includes the heat transfer of a heating device per unit area of ​​​​the room where this device is located. The thermal regime in this situation is ensured design features heating devices.

It is important to ensure that the coolant in the network does not cool below 70 °C. 80 °C is considered optimal. WITH gas boiler It is easier to control heating because manufacturers limit the ability to heat the coolant to 90 °C. Using sensors to regulate the gas supply, the heating of the coolant can be adjusted.

It is a little more difficult with solid fuel devices; they do not regulate the heating of the liquid, and can easily turn it into steam. And it is impossible to reduce the heat from coal or wood by turning the knob in such a situation. Control of heating of the coolant is quite conditional with high errors and is carried out by rotary thermostats and mechanical dampers.

Electric boilers allow you to smoothly regulate the heating of the coolant from 30 to 90 °C. They are equipped with an excellent overheat protection system.

Single-pipe and double-pipe lines

The design features of one-pipe and two-pipe heating networks determine different standards for heating the coolant.

For example, for a single-pipe main the maximum norm is 105 °C, and for a two-pipe main it is 95 °C, while the difference between the return and supply should be respectively: 105 - 70 °C and 95 - 70 °C.

Coordination of coolant and boiler temperatures

Regulators help coordinate the temperature of the coolant and the boiler. These are devices that create automatic control and adjustment of return and supply temperatures.

The return temperature depends on the amount of liquid passing through it. Regulators cover the liquid supply and increase the difference between the return and supply to the level required, and the necessary indicators are installed on the sensor.

If the flow needs to be increased, a boost pump can be added to the network, which is controlled by a regulator. To reduce the heating of the supply, a “cold start” is used: that part of the liquid that has passed through the network is again transported from the return to the inlet.

The regulator redistributes the supply and return flows according to the data collected by the sensor and ensures strict temperature standards heating networks.

Ways to reduce heat loss

The above information will help to be used for correct calculation coolant temperature standards and will tell you how to determine situations when you need to use a regulator.

But it is important to remember that the temperature in the room is affected not only by the temperature of the coolant, street air and wind strength. The degree of insulation of the facade, doors and windows in the house should also be taken into account.

To reduce heat loss from your home, you need to worry about its maximum thermal insulation. Insulated walls, sealed doors, metal-plastic windows will help reduce heat loss. This will also reduce heating costs.