Radiator counters-distributors, individual accounting. Heat metering with apartment distributors

Svetlana Nikitina, Leading Specialist in Individual Heat Metering, Danfoss LLC

The relevance of introducing individual metering of heat energy consumption is already obvious not only to specialists, but also to residents. apartment buildings. Heating tariffs are constantly growing and the only way to save money is to start regulating heat consumption and paying according to individual devices. Experts are well aware that housing stock consumes almost twice as much heat as in Europe. And this problem also needs to be solved.

The law provides

Individual accounting became mandatory with the adoption of Law No. 261-FZ "On Energy Saving". Part 7 of Article 13 prescribes the mandatory installation of individual heat metering devices in new construction and reconstruction from January 1, 2012.

Regulations federal law details the Code of Rules SP 60-13330.2012 "Heating, ventilation and air conditioning". According to clause 6.1.3, “In residential apartment buildings it is necessary to provide for commercial accounting of heat consumption in the internal heat supply systems for the building, as well as accounting and regulation of heat consumption for each apartment; in buildings with vertical wiring heating systems should provide for the organization of apartment-by-apartment metering of heat consumption (installation of radiator heat distributors and other similar devices).

Residential accounting can be provided in two ways. In buildings with horizontal distribution of heating systems - by installing apartment heat meters at the input to each apartment. In buildings with vertical wiring - by installing radiator distributors on each radiator. Other methods and developments known among specialists are not yet suitable for mass implementation.

Features of radiator distributors

The advantages of radiator distributors are ease of installation and maintenance, reliability, lack of direct contact with the coolant and long term service (10 years or more) without intermediate verification.

The disadvantages of these devices could be attributed to an indirect method of measurement, which does not allow to directly measure the amount of heat consumed, but only the share of consumption of each room in the total amount of heat energy consumed by the entire building. In this case, ideally, for the correct distribution in the same units, the shares of all premises should be measured, since only in this case can these units be accurately converted into physical units heat, based on the readings of a common house appliance.

When mounting the distributors, the types and dimensions of the heaters on which the distributors are installed must be recorded in writing. Based on these data, the radiator coefficients are determined for each heater provided by the distributor manufacturer. Radiator coefficients must either be programmed directly into each distributor, or taken into account in the calculation for each room in the software. This procedure has been worked out for each manufacturer, but it must be followed exactly.

The current methods, in accordance with the "Rules for the provision of utility services to owners and users of premises in apartment buildings and residential buildings" (approved by Decree of the Government of the Russian Federation No. total area Houses). Such a norm, of course, introduces errors in the calculation of the values individual consumption. This assumption is justified only by the impossibility in practice to equip devices and collect readings from all 100% of the heated premises of an apartment building, even with automated readings. This is especially true for the already existing housing stock, built before the entry into force of Federal Law No. 261.

First there was modernization

On the old housing stock in general, a special conversation. Unfortunately, in the vast majority of apartment buildings there is not only no individual accounting, but also weather regulation at the entrance to the building, and individual regulation in the form of thermostats on heating devices, and balancing of risers, and, often, commercial accounting at the entrance to buildings.

Without all this equipment, the installation of individual accounting is meaningless. At the same time, the whole complex of measures is quite costly. In terms of one apartment, this can amount to several tens of thousands of rubles.

Carrying out such modernization requires special financial and organizational schemes, for example, energy service ones. The process today is hampered by the lack of affordable lending, special funds for targeted support of these activities, and an unfinished regulatory framework. Weak self-organization of residents of apartment buildings and an insufficient number of competent specialists in housing and communal services also limit the practice of modernizing existing housing.

In this direction, further concerted efforts of residents, the state, business and specialists are needed. Danfoss is doing a lot of work in this direction, organizing training seminars for specialists from partner companies, advising state structures by educating end users. We call on everyone who understands the importance and relevance of these events to cooperate.

When the law is circumvented

In new construction, the introduction of individual accounting is active, despite the fact that in a number of regions, developers manage to circumvent the provisions of Federal Law No. 261 under various pretexts. One of these pretexts was the alleged lack of technical feasibility of installing individual metering devices with vertical wiring, since distributors were not treated as metering devices.

The Ministry of Regional Development of Russia, at the request of the Department of Urban Planning Policy of Moscow dated August 12, 2013, explained that the totality of distributors installed in apartment building, are individual metering devices, as they allow you to determine the amount of consumption of each room, subject to the presence of a common house device. Thus, distributors should be installed in new buildings with vertical distribution of heating systems. The same applies to renovated buildings.

Settlement rules

After the commissioning of buildings equipped with individual heat metering devices, the issue of organizing calculations arises. With individual heat meters, everything is simple: they show the direct heat consumption in each apartment. A little more complicated, this process is organized by distributors.

The legal basis for such calculations is the "Rules for the provision of public services to owners and users of premises in apartment buildings and residential buildings." The document contains necessary formulas and the procedure for payment for heating for individual devices, including distributors, was determined. For billing software management companies and settlement centers should be adapted to such a calculation scheme.

As a solution, Danfoss LLC offers software for its devices that allows you to maintain databases of individual device readings, read these readings, recalculate into physical units of heat for each apartment, print calculation results in various forms - including an individual apartment calculation . This software is provided free of charge and has a flexible output file format, it can be easily integrated into various systems. To master the accounting system based on Danfoss equipment and software, regular free training seminars are held for specialists from management companies and service organizations.

The question often arises of what to do when payments for heating are charged not by the management company, but directly by heat supply organizations, in the presence of direct contracts with residents. The answer is contained in the "Rules for the provision of public services." In this case, the heat supply organization acts as a contractor for the heating utility service, and all the rights and obligations of the contractor apply to it (Section IV of the "Rules"). In particular, the contractor is obliged to take into operation individual appliances accounting (including distributors) installed in the apartments, and calculate payments for them in accordance with the "Rules".

Thus, heat supply organizations concluding contracts for the maintenance of houses in which distributors or apartment meters are installed, must ensure the conduct of calculations for individual devices - install the necessary software, send specialists for training, ensure the taking of readings and the calculation of payments in in due course.

Here one should not confuse commercial accounting and apartment accounting. Under the definition of commercial accounting in accordance with the Civil Code of the Russian Federation, only accounting falls on the balance sheet between the supplier and the consumer, provided that the consumer has receiving devices connected directly to the supplier's networks. Residents of an apartment building do not have such devices, they are available only at the entrance to the building. Therefore, the “Rules for the commercial accounting of heat carriers” do not apply to apartment-by-apartment accounting, but only the “Rules for the provision of public services”.

Application features

It should be noted a number of shortcomings of the "Rules", which were revealed in practice during the introduction of individual accounting. Paragraph 42(1) (as amended by GR no. 344) reads as follows:

“In an apartment building that is equipped with a collective (common house) heat energy meter and in which not all residential or non-residential premises are equipped with individual and (or) common (apartment) metering devices (distributors) of thermal energy, the amount of payment for public service for heating in a residential area is determined in accordance with formula 3 of Appendix No. 2 to these Rules based on the readings of a collective (common house) heat energy meter.

Accordingly, formula 3 from Appendix No. 2 contains the calculation of the consumption of an apartment by its area based on the average indicator for a common house appliance per 1 sq. meter of area of ​​apartments in the house. Thus, if all 100% of readings of individual devices are not collected, then their readings are not accepted for calculation. In practice, any Management Company can confirm that 100% readings are almost never obtained. With this approach, the installation of individual devices actually loses its meaning, since it is not possible to carry out calculations on them.

In the case of distributors, the "Rules" provide additional requirement in paragraph 53, which prescribe at the end of the year to make adjustments to payments, taking into account the testimony of distributors (according to formula 6 of Appendix No. 2), which ultimately allows the economical ones to return the saved funds, and for “wasteful” apartments - to charge additional fees for excess consumption. However, in the case of apartment meters, no additional adjustment is provided. In our opinion, this situation should be corrected as soon as possible, as it is in conflict with Federal Law No. 261 and hinders the normal course of the introduction of individual accounting.

Flaws in calculation formulas

When calculating for distributors, apartments without appliances are calculated by area according to the average consumption per 1 sq. meter. This does not encourage residents to install and maintain the safety of appliances. In fact, in apartments without meters, as a rule, they do not care about savings and consume obviously more than the average in the house. Consequently, they underpay, and their payment falls on apartments with meters. As a result, some apartments with meters - not the most economical, but still installed devices - will have to pay more than apartments without meters.

This situation could be corrected by introducing increasing coefficients for apartments without appliances - at least for those buildings in which individual appliances were installed during construction or by decision of the majority of the residents of the house. The coefficients can be entered according to the same scheme that was introduced for apartment-by-apartment metering of water and other energy resources. This would restore fairness in payments and encourage residents to install appliances in their apartments.

We see another drawback in the absence of a share of general house costs (non-regulated costs) distributed by area in the formulas of Appendix No. 2 for distributors. The fact is that, unlike water supply, the share of such costs, not measured by distributors and not regulated by residents, in heating systems is quite large - at least 30%. This is especially true for vertical single-pipe heating systems with non-isolated risers, in which apartments receive a significant proportion of heat from risers. In European regulations, it is recommended for such heating systems when using distributors to increase the share of unregulated (fixed) costs in the calculation formula up to 50%. This increases the accuracy of the calculation and eliminates situations where the apartment is heated from risers and at the same time may not pay for heating.

Despite these shortcomings, which certainly require adjustment, the "Rules" still oblige and make it possible to switch to apartment-by-apartment accounting in houses equipped with distributors. Residents have every right to demand the transition to individual accounting in those houses where the necessary equipment is installed.

Heat distributors are still not widely used in our country, although in Europe they have been used on an industrial scale since the 70s, and the number of installed heat distributor devices amounts to tens of millions. We do not yet produce these devices, although we already have experience in their use.

The principle of operation of distributors.

The photo shows a thermostatic regulator and a radiator installed in the apartment. The distributor every 3-4 minutes measures the surface temperature of the radiator at one specific point and records the temperature difference between the surface of the radiator and the air in the room into a non-volatile memory. As a result, heat corresponds to the amount of heat given off by the radiator over the past period, measured in conventional units. It is conditional, the readings of the heat distributor during recalculation are multiplied by radiator coefficient, corresponding this type and heater size.

At the same temperature on the surface of a large and small radiator and at the same temperature in the room, the readings of the distributors will be the same, but will a large heater give off more heat? To take this situation into account, the radiator coefficient is used. Each manufacturer has tables of radiator coefficients for their devices for all types of manufactured radiators. Tables of radiator coefficients are included in computer programs for recalculating payments, and the coefficients are automatically taken into account in the calculation.

But what about here with our homemade radiators or battery assemblies, when residents add sections to an existing radiator on their own, while some of them practically do not heat. There is only one conclusion, you will have to get rid of homemade products.

The cost of a heat distributor and payment for heat.

The cost of a heat distributor is about 10 times less than the cost of an apartment heat meter. Distributors are easily installed on any type of heating devices. This is the main advantage. Due to this, the cost of a set of devices for an apartment is acceptable even if there are several risers in the apartment.

Heat distributors are suitable for all heating systems.

Calculation of payment for heating according to the readings of the heat distributors is the distribution of the total amount paid to the heat supplier between individual apartments in proportion to the readings of the radiator distributors. At the same time, the residents of the apartments monthly, during the year, make payments at fixed pre-calculated and approved rates, and settlements with the heat energy supplier are made according to

Once or twice a year, readings are taken in apartments, and the total amount is distributed according to the readings received. For each tenant, a balance is drawn between the amount of his payments at provisional rates and his estimated payment. The amount received is used to offset payments for heating for the next year.

Thus, in the presence of any type of individual heat metering devices, payments for heating are made dependent on actual heat consumption in apartments.

Finally, let's compare the costs of installing radiator thermostats and heat distributors.

Equipment and costs, Price per piece (at the rate of $ 1 - 60 rubles)

• Distribution sensor for individual metering INDIV-3 with visual reading from the LCD display
• Sensor-distributor for individual accounting INDIV-3R with remote wireless data transmission (radio)
• Installing a thermostat and measuring sensor
• Annual apartment settlement services

In the table, the costs for the installation of radiator thermostats and heat distributors

Calibration interval of heat distributors is 10 years. Apartment heat meters- 5 years.

The payback period for installing heat distributors and radiator thermostats for a two-room apartment is 1 year, with a service life of a thermostat of 30 years, and a heat distributor of 10 years. For economical residents, this period will be even shorter.

Remember the basic rules for organizing apartment accounting using heat distributors:

• on heating appliances without fail thermostatic controls must be installed.
• At least 75% of the heated premises must be equipped with thermostats and heat distributors in the building.
• the actual cost of thermal energy for heating a residential building should be made by a common house heat meter.
• in housing organization recalculations of payments for residents should be organized according to the indications of common house and apartment metering devices.

Paramonov Yu.O. LLC enterprise "Energostrom" 2017.

One of the effective options for upgrading the heating system, which makes it more productive and reliable, is the installation of a collector unit. The device that replaced the traditional designs linear structure designed to improve the usability and maintainability of the system.

How the collector for heating functions and what installation features should be considered, we will consider in more detail.

Each output of the device can be equipped with outlet valves and a shut-off or control valve.

Their presence makes it possible to regulate the pressure inside each circuit and, if necessary, disconnect a branch for repair, for example, block the flow of coolant.

In order to increase the performance of the system and be able to control all heating processes in each room of the heated house, the case is also used as a platform for installation:

• air release valves;
• drain valves;
• flowmeters;
• heat meters.

The principle of operation of the collector system is quite simple. The liquid heated by the heat generator enters the supply comb.

Inside the intermediate assembly, the fluid velocity is slowed down due to the increased internal diameter of the device, it is redistributed between all outlets.

The number of outlets on the distributor can be any, and if necessary, the design can always be increased with additional outlets

Knowing the flow rate of the coolant, equal to the power of the heat generator, and the speed of water movement, it is easy to find the required cross-sectional area. Only first it is necessary to convert liters into a unit convenient for calculations mm 3.

Through connecting pipes, the cross section of which is smaller than the diameter of the pipe of the collector assembly, the coolant enters separately laid circuits and moves to radiators or to.

Thanks to this distribution, each element is properly heated, supplied with a coolant of equal temperature.

The inner diameter of the collector is determined by calculation so that the speed of movement of the coolant inside it is not more than 0.7 m/s

Having reached the battery and given off the heat received during heating, the liquid is directed through another pipe to opposite direction to the distribution block. There it enters the return comb, from where it is redirected to the heat generator.

The collector wiring diagram ensures a uniform supply of heat to all rings of the water "Heat-insulated floors" system

Underfloor heating pipelines are assembled from copper pipes or their plastic counterparts, one-piece fittings are used for connections.

Valves are mounted in the heating rings, with the help of which they regulate the supply of coolant, and, if necessary, disconnect the "warm floors" from the common house heating network.

The collector for the "warm floor" is a structure that includes a number of pipe rings, which is laid under the floor covering

Such systems are always equipped. It is placed in an intermediate collector assembly at the inlet to the reverse direction pipe.

The number of nozzles on the distribution node depends on the number of rooms looped on one comb.

The number of collector groups is determined based on the length of the contours. The calculation is based on the ratio in which 120 meters of the pipeline are assigned to one collector group.

Type #2 - Hydraulic Arrow

When arranging powerful and branched heating systems that are designed in residential buildings large area, use distribution manifolds equipped with thermohydraulic distributor or hydraulic arrow.

When installing the connecting link, on the one hand, the heating boiler circuit is connected to it, and on the other hand, radiator heating or “warm floors”.

The hydraulic arrow is a vertical hollow pipe equipped with elliptical plugs at the ends, the main purpose of which is to equalize the pressure exerted on the coolant

Distribution hydraulic switch allows you to solve several problems at once:

• avoid sudden temperature changes in pipes that have a detrimental effect on the operational life of the system;
• due to the admixture and secondary circulation of a part of the coolant, maintain a constant volume of boiler water, as well as save fuel and electricity;
• if necessary, compensate for the flow deficit in the secondary circuit.

Maintaining the temperature balance is achieved due to the fact that the device allows you to separate the hydraulic circuit of the boiler from the secondary circuit.

A variant of the manufacture of a home-made manifold distributor equipped with a hydraulic arrow, which is made of a steel square pipe and equipped with fittings

Optimal operation of a system equipped with a hydraulic arrow can be ensured if each circuit is equipped with its own circulation pump.

Type #3 - solar collector installations

Devices of this type are selected when arranging autonomous water supply in non-gasified areas where the level of solar radiation is quite high.

Air combs operating on solar energy, work due to the greenhouse effect, converting sunlight into thermal energy

The design of solar installations is slightly different from traditional counterparts. In fact, they are a kind of greenhouses that accumulate solar energy.

The natural circulation of the coolant in them is carried out due to convection currents and under the action of fans attached to the absorbing plate.

The solar absorber is a small flat box covered with a black absorbent plate. This heat-receiving plate accumulates heat.

The accumulated heat is transferred to the coolant, which can be air or liquid circulating through the pipes.

The main purpose solar collector- to direct and redistribute the energy of the Luminary for domestic needs and needs

On sale you can find mobile collector systems powered by solar energy. Their design is arranged in such a way that mirrors and heating elements “follow” the movement of the sun, so that its energy is absorbed to the maximum.

But due to the high cost of equipment as the main source of heating in the climate, even the southern regions of our country are unprofitable.

And therefore they are more involved as an additional source of heat in the arrangement of heating systems using solid fuel and gas boilers.

Modifications of distribution manifolds

Today, there are many varieties of collectors for heating systems on the equipment market.

Manufacturers offer both connecting links most simple execution, the design of which does not provide for the presence of auxiliary fittings for regulating equipment, and manifold blocks with a full set of built-in elements.

Manifold block that includes all the necessary functional elements to create conditions for uninterrupted and high-performance operation heating system

Simple devices are brass models with an inch passage of branches, equipped with two connecting holes on the sides.

On the return manifold such devices have plugs, instead of which, in case of "building up" the system, you can always install additional devices.

More complex in terms of design intermediate prefabricated units are equipped with ball valves. Under each outlet, they provide for the installation of shut-off control valves. Fancy expensive models can be equipped with:

• flow meters, the main purpose of which is to regulate the flow of coolant in each loop;
• temperature sensors designed to control the temperature of each heater;
• vent valves automatic type for draining water;
• electronic valves and mixers to maintain the programmed temperature.

The number of circuits, depending on the connected consumers, can vary from 2 to 10 pieces.

Regardless of the complexity and versatility of the equipment, materials that are resistant to external factors are used in the manufacture of collector block combs.

If we take the material of manufacture as a basis, then intermediate prefabricated collectors are:

1. brass- high performance at an affordable price.
2. Stainless – steel structures extremely durable. They can easily withstand a lot of pressure.
3. Polypropylene- models from polymer materials, although they are distinguished by a low price, they are inferior to metal "brothers" in all characteristics.

Models made of metal are treated with anti-corrosion compounds and covered with thermal insulation to extend the service life and increase operational parameters.

Dividing structures made of polymers are used in the arrangement of systems heated by boilers with a power of 13 to 35 kW

The details of the device can be cast or equipped with collet clamps that allow connection with metal-plastic pipes.

But experts do not advise choosing combs with collet clamps, since they often “sin” with coolant leakage at the valve junctions. This is due to the rapid failure of the seal. And it is not always possible to replace it.

Collectors are used in single- and two-pipe heating. AT single pipe systems one comb supplies the heated coolant and receives the cooled

The main difficulty lies not only in the installation of the collector itself, but also in right choice equipment.

When choosing a comb model, you should focus on the following parameters:

1. The maximum allowable pressure for this model. It determines the type of material from which the valve can be made.
2. Node throughput.
3. Availability of assistive devices.
4. The number of outlet nozzles of the comb. It must correspond to the number of cooling circuits.
5. Possibility of additional attachment of elements.

All operating parameters are indicated in the passport for the product.

To equip floor-by-floor independent heating circuits equipped with autonomous control, combs must be mounted on each floor of the house.

When choosing and installing floor distributors, they are guided by the parameters of the “subsystem” that they are designed to serve.

Thanks to the floor-by-floor placement of the combs, if necessary, you can always turn off the heating of both several individual devices and the entire floor

This greatly simplifies the maintenance of the heating system and its repair.

Since the collector unit is not a cheap pleasure, in order to protect yourself from disappointment when the system fails quickly, when choosing a model, you should focus on products from trusted manufacturers.

You can safely trust manufacturers such as GREENoneTEC, Rehau, Soletrol, "Oventrop" and Meibes. In each series of leading European manufacturers, you can choose a complete set of necessary additional equipment.

Auxiliary elements and fittings to the manifold block must also comply with GOST and TU.

As additional devices for connecting the collector, you may need: 1 - an automatic air vent, 2 - an adapter, 3 - a corner, 4 - a tap, 5 - a drive, 6 - another corner, 7 - pipe outlets

Each of additional elements structure does its job:

• automatic air vent– mounted if the unit and radiators are located on the same floor;
• adapter- Required when installing a ½" air vent, provided the manifold has a ¾" thread.
• corner– allows you to connect the pipes and direct the air vent upwards.
• tap- necessary for connecting a pipe coming from the boiler to the device;
• drive, equipped with a cap nut - will allow, if necessary, to shut off the coolant supply and, by unscrewing union nut, disconnect the device.

If you intend to connect, you will additionally need to install a make-up tap.

To fix the collector to the wall, you will also need clamps “planted” on plastic dowels. When mounting the structure, it is also permissible to use special brackets.

Such designs are convenient in that the upper manifold is pushed forward in them, due to which the tubes of the assembly do not interfere with the pipeline supply to the lower manifold.

Installation and connection rules

It is best to choose and install a collector even at the design and installation stage of the heating system.

Install such intermediate structures in rooms protected from excessive moisture. Most often, for these purposes, a place is allocated in the corridor, pantry or dressing room.

It is advisable to place the manifold block in a metal cabinet specially designed for this, equipped with holes in the side walls for the removal of pipes

On sale there are overhead and built-in models metal cabinets. Each model is equipped with a door and stamping on the sides.

For lack of the ability to install a metal cabinet, it is easier to fix the device directly on the wall. A niche for arranging the collector block is placed at a low height relative to the floor.

There is essentially no generally accepted installation instruction for collector distribution circuits. But there are a number of key points regarding which experts have come to a common denominator:

1. Availability expansion tank . Volume structural element must be at least 10% of the total amount of water in the system.
2. Availability circulation pump for each routed circuit. Regarding this element, not all experts are unanimous in their opinion. But still, if you plan to use several independent circuits, it is worth installing a separate unit for each of them.

Placed in front of the circulation pump on the return line. Due to this, it becomes less vulnerable to the turbulence of water flows that often occur in this place.

If a hydraulic arrow is used, the tank is mounted in front of the main pump, the main task of which is to ensure circulation in a small circuit.

The location of the circulation pump is not important. But, as practice shows, the resource of the device is somewhat higher precisely on the "return".

The main thing during installation is to position the shaft strictly horizontally. If this condition is not observed, the first bubble of accumulated air will leave the unit without cooling and lubrication.

The process of assembling and connecting the collector system is clearly presented in the video block.

Conclusions and useful video on the topic

Video guide for sequential assembly of the manifold block:

Video overview of the installation and operation of the modular plastic manifold:

Distribution unit for "warm floor":

Properly selected and installed collector wiring guarantees the efficiency and reliability of the heating system.

Due to the small number of connections and tees, the likelihood of leakage of such structures is minimized. Well, the ability to regulate the heating temperature of each heating radiator makes the operation of the heating system especially comfortable.

If you have necessary knowledge or have experience in connecting a collector heating system, please share it with our readers. You can do this by leaving a comment at the bottom of the article.

In the company "TEPLOSTOK" you can order radiator heat meters (distributors). We are pleased to offer products of the famous brand INDIV, as well as all the necessary components for it on favorable terms.

The relevance of using the presented models

Individual heat metering allows you to save heat energy and pay for it in accordance with actual consumption. In systems with vertical wiring, radiator meters-distributors are used.

The models presented in our assortment meet all the established requirements and have a calibration interval of 10 years.

Basic models of heat distributors

1. Versions INDIV-3 and INDIV-3R. These distributors have one built-in temperature sensor. Such devices use the principle of accumulating the resulting reading over time at a rate that is determined by the output signal of the built-in sensor.
2. Versions INDIV-3R2 and INDIV-3RD. These models have 2 temperature sensors (heater surface and ambient air). In the INDIV-3R2 distributor, both sensors are built into the housing. In the NDIV-3RD device, the air temperature sensor is built-in, and the heater surface sensor is remote.

All types of valves allow memorizing and displaying the resulting reading on a pre-set day of the year. The devices are used in internal systems heating.

Any distributor can be installed on:

1. Sectional radiator made of cast steel or cast iron.
2. Aluminum heating battery.
3. Tubular and panel radiators.
4. Pipe registers.
5. Convectors.

The heat distributor solves the following tasks:

1. Accumulation of consumption readings.
2. Indication of consumption readings for the previous year.
3. Checksum indication for verification.

In addition, the distributor is equipped with a self-test system.

Specifications INDIV-3:

1. Design temperature range in heat supply systems: 55-105 degrees Celsius.
2. Starting reference temperature: June-August: 40 degrees Celsius, September-May: 30 degrees Celsius.
3. Heat distributor power supply: lithium battery.
4. Dimensions: 40x76x25 mm.
5. Distributor measurement accuracy: complies with European standard EN834.

Advantages of ordering heat meters-distributors in our company

1. Wide range of models. You can order a heat distributor of both the previous and the latest generation.
2. Optimal cost. You can order any distributor model by favorable price with discount. We offer wholesale and regular customers participation in special promotions.
3. Help with choosing. Our experts are ready to tell you about all heat distributors and answer your questions.
4. Sufficient stock of products. You can order heat meters from us at any required quantity without a long wait for deliveries from the manufacturer.
5. Prompt delivery. You can start using any distributor in the near future. Transportation of heat meters-distributors is carried out by the company's own transport in Moscow and in the regions.

Contact us! Control heat in a modern format and cut costs.

code number	Description	Price (EUR)	Sketch
088H2330	Compact radiator meter-distributor INDIV-5 with visual reading from the LCD display	30,83
088H2203	Compact radiator meter-distributor INDIV-3R with remote wireless data transmission (radio)	43,39

Radiator meter-distributor INDIV new generation

code number	Description	Price (EUR)	Sketch
187F0001	The meter-distributor radiator in a compact design with an LCD display has replaced the INDIV-5	43,39

code number	Description	Price (EUR)	Sketch
088H2250	Two-channel pulse adapter INDIV PAD for connecting 2 meters (water, electricity, gas) with a pulse output	74,79
088H2251	Network node, standard with independent power supply NNB-Std	306,28
088H2257	Network node with communication module for remote reading with GSM interface NNV-GSM (mains powered)	1595,22
088H2254	Network node with communication module for remote reading with RS232 interface NNV-232 (mains powered)	459,42
088H2256	Network node with communication module for remote reading with Ethernet interface NNV-IP (mains powered)	1512,26

Accessories for radio setup and readings

Radio system software

Kit for mounting the meter-distributor on cast-iron sectional radiators

Gap between sections no more than 34 mm

code number	Description	Price (EUR)	Sketch
088H2211		1,32
088H2230	T-nut, 65 mm	0,85
	Bolt M 4 x 35 mm
Kit cost

Gap between sections more than 34 mm

code number	Description	Price (EUR)	Sketch
088H2212	Thermal adapter, standard, 55 mm	1,32
088H2230	T-nut, 65 mm	0,85
	Bolt M 4 x 35 mm
Kit cost

Kit for mounting the meter-distributor on panel radiators

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Tail nut M 3 x 6 mm (requires ordering 2 pieces per meter)
	Welding bolt M 3 x 10 mm (required to order 2 pcs. for 1 meter)
Kit cost

Kit for mounting the meter-distributor on convectors

Mounting on "fins" (convectors "Universal", "Santekhprom-Avto", KV)

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
088H2270	Cutting rod M 3 x 330 mm	2,81
	Castellated nut M 3 mm (required to order 2 pcs. per meter)
Kit cost

Installation on the "kalach" (convectors "Akkord", "Comfort", "Progress")

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Tail nut M 3 x 6 mm (requires ordering 2 pcs per meter)
	Welding bolt M 3 x 10 mm (order 2 per meter)
Kit cost

Kit for mounting the meter-distributor on tubular radiators

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
088H2241 or 088H2242	T-nut, 36 mm or 45 mm	6,96
	Bolt M 4 x 35 mm
Kit cost

Kit for mounting the meter-distributor on aluminum radiators

Gap between sections no more than 4 mm

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Self-tapping bolt C 4.2 x 25 mm (requires ordering 2 pcs. for 1 meter)
Kit cost

Gap between sections more than 4 mm

code number	Description	Price (EUR)	Sketch
088H2211	Thermal adapter, standard, 40 mm	1,32
	Square studs (requires ordering 2 pcs per counter)
	Screw M 3 x 25 mm (requires ordering 2 pcs. for 1 meter)
Kit cost

Optional equipment

With maximum savings in terms of payment. At the same time, there is a tendency to reduce heat consumption. In order to correctly and successfully implement such a scheme, it is necessary to take into account three aspects that are interrelated. First, the regulatory and technical base is being developed and approved. Secondly, reliable and cost-effective regulatory and accounting tools are selected. It is also necessary to treat heat consumption rationally, to take into account its payment depending on the actual use.

Mounting bases

On the state level a corresponding law was adopted, according to which individual heats must be installed in reconstructed and erected residential buildings.

The relevant rules allow the installation of distributors used for horizontal wiring of heating systems, they are installed on the inlet heating outlet. In the case of vertical wiring, these devices are not suitable for two reasons: they are too expensive to install on each radiator element, and they also do not capture the meager flow and temperature change to be measured on each radiator.

How does the device work?

After 4-5 minutes, heat distributors measure the temperature of the radiator at a specific point, the results are stored in non-volatile memory as a thermal difference between the area of ​​​​the battery and the air in the room. Therefore, the readings are identical to the amount of heat that came from the radiator during the accounting period. The data are taken into account in arbitrary units, which are subsequently multiplied by the radiator coefficient corresponding to the specific type and dimensions of the device.

With the same temperature readings in the room, as well as on the surface of the radiators different sizes distributor data will be identical. However, the heat transfer of a large device is higher. To correct this moment, there is just the specified coefficient. Each manufacturer has accounting tables for this indicator for all types of radiators. Information is included in computer programs for recalculation, which is automatically recorded when paying.

Heat accounting procedure

Readings are taken annually in apartments, and the total amount is dispersed according to actual indicators. Tenants are given a balance between the amount of payments, taking into account approximate rates, and the final payment. The final amount is counted for the use of heating in the next year. Therefore, if there are personal heat meters, the amount of payment for heating depends on the actual use in the houses. Heat distributors are checked at intervals of 10 years.

The payback period of such installations for a two-room apartment is no more than one year with a service life of thermostats up to thirty, and distributors up to ten years.

Organizational rules

There are several rules that will help organize apartment accounting using a heat distributor for a battery. These include:

• Mandatory installation of thermostatic regulators on heating units.
• At least 75 percent of the rooms should be equipped with corrective and distributing units.
• Spent thermal energy for heating a residential building, in fact, should be taken into account by a meter common to the house.
• In the housing office, it is necessary to recalculate for citizens according to the readings of metering devices.

Radiator Type Options

Any radiator heat distributor can be used for various wiring of the heating system, and it is much cheaper than a meter. The device is easy to install, maintain, the operational period is at least ten years without additional verification.

Vertically laid buildings comprise over 90 percent of the available housing stock and most of the residential buildings under construction. AT similar structures, except distributors, other effective technologies there is no residential account.

It should be noted that the device in question takes into account only part of the heat supplied from the battery to the room. Some share is lost due to heat exchange through external wall partitions. These losses depend not only on the provided design and constructive solutions, but also from outdoor temperature air.

Mounting

For correct operation, the heat distributors in the apartment must be correctly installed. Most manufacturers have developed and implemented mounting technologies for different kinds heating units sold on the relevant market.

It is not possible to install a distributor on some devices for technical reasons:

• Appliances containing steam.
• Models placed in the floor screed.
• Modifications that give off heat from the ceiling of the room.
• Units with a built-in electric fan.
• Devices with regulation by means of air valves.
• Devices where it is impossible to stop the circulation of the coolant.
• Products related to outdoor air.

A specialist who carries out professional installation of distributors, in each specific situation, can determine other restrictions that do not allow installation.

Financial moments

On a two-pipe riser, you can easily install regulators and heat distributors. For single pipe installations, bypasses will be required to install the heat supply control unit. Counters in the room are installed regardless of their availability. The cost of a unit is from a thousand rubles, the price of the system is from 5 to 6 thousand. It consists of a distributor, a radio transmitter, the device provides information on the amount of heat given to the room (kW / h). From an economic point of view, it is advisable to install distributors together with regulators.

According to the results of a full calendar year, the readings of each distributor, taking into account the radiator coefficient, will be similar to those of adjacent devices. After removing the information, tenants can roughly estimate the amount of payment. When tariffs are increased, the costs will correspondingly increase proportionally. Real savings can be made only with the proper operation of thermostats by reducing the temperature of the radiators.

Peculiarities

The units under consideration have a number of nuances regarding models and installation. For example, a distributor for underfloor heating is included in the whole heating system of a dwelling, it is distinguished by a special nature of functioning. Considering that the coolant circulates through all pipelines of the unit, its preparation is carried out separately. To isolate the floor heating water installation from the "supply" and "return" installation is provided, which is completed with a pumping group, check valve and distributor.

In addition, the units are divided by brands. There are many manufacturers, among which the Pulsar brand can be distinguished. It was developed by a German company, produced using European technologies and has the following advantages:

• Aluminum adapter, the price of which is included in the price of the product.
• It is possible to remove data without entering the dwelling.
• Available free program reading readings.
• Simplified methods of adjustment and operation are applied.
• An open exchange protocol and protection against external heating are provided.

In addition, the Pulsar heat distributor has an indication of its removal from the radiator, a shutdown function on summer period and the possibility of reconciliation of evidence through