Automated control units for engineering systems: what you need to know when planning the overhaul of MKD. Automated control unit of the heating system

Appendix 1

to the Department

and beautification of the city of Moscow

REGULATIONS

PERFORM MAINTENANCE AND REPAIR WORKS

OF AUTOMATED CONTROL UNIT (ACU) OF THE CENTRAL

HEATING OF HOUSES IN THE CITY OF MOSCOW

1. Terms and definitions

1.1. GU IS districts - State institutions of the city of Moscow engineering services of districts - organizations created by reorganization public institutions of the city of Moscow of unified information and settlement centers of the administrative districts of the city of Moscow in accordance with the Decree of the Government of Moscow dated 01.01.01 N 299-PP "On measures to bring the management system of apartment buildings in the city of Moscow into line with the Housing Code Russian Federation"and performing the functions assigned to them by the named resolution and other legal acts of the city of Moscow. The unified information and settlement centers of the districts of the city of Moscow function as part of the GU IS of the districts of the city of Moscow.

1.2. Managing organization - legal entity
any organizational and legal form, including a homeowners association, housing cooperative, residential complex or other specialized consumer cooperative that provides services and performs work on proper maintenance and repair common property in such a house, providing utility services to the owners of premises in such a house and persons using premises in this house, carrying out other activities aimed at achieving the goals of managing an apartment building and performing the functions of managing an apartment building on the basis of a management agreement.

1.3. Automated node control (AUU) - a complex heat engineering device designed to automatically maintain the optimal parameters of the coolant in the heating system. The automated control unit is installed between the heating system and the heating system.

1.4. Verification of AC components - a set of operations performed by specialized organizations in order to determine and confirm the compliance of AC components with established technical requirements.

1.5. ACU maintenance - a set of works to maintain the ACU in good condition, prevent failures and malfunctions of its components and ensure the specified performance.

1.6. Serviced home - a residential building in which maintenance and Maintenance Ayy.

1.7. Service log - accounting document, which records data on the state of the equipment, events and other information related to the maintenance and repair of the automated control unit of the heating system.

1.8. AUU repair - current repair of AUU, including: replacement of gaskets, replacement/cleaning of filters, replacement/repair of temperature sensors, replacement/repair of pressure gauges.

1.9. Tank for draining the coolant - a water tank with a volume of at least 100 liters.

1.10. ETKS - Unified tariff-qualification directory of works and professions of workers, consists of tariff- qualification characteristics, containing the characteristics of the main types of work by profession of workers, depending on their complexity and the corresponding tariff categories, as well as the requirements for professional knowledge and skills of workers.

1.11. CEN - Unified qualification directory of positions of managers, specialists and employees, consists of qualification characteristics of positions of managers, specialists and employees, containing official duties and requirements for the level of knowledge and qualifications of managers, specialists and employees.

2. General provisions

2.1. This Regulation determines the scope and content of work performed by specialized organizations for the maintenance of automated control units (ACU) for heat supply in residential buildings in the city of Moscow. The regulation contains the main organizational, technical and technological requirements for the performance of maintenance work on automated thermal energy control units installed in systems central heating residential buildings.

2.2. This regulation has been developed in accordance with:

2.2.1. Law of the city of Moscow N 35 dated July 5, 2006 "On energy saving in the city of Moscow".

2.2.2. Decree of the Government of Moscow dated 01.01.2001 N 138 "On approval of the Moscow city building codes" Energy saving in buildings. Standards for thermal protection and heat and water supply.

2.2.3. Decree of the Government of Moscow dated 01.01.2001 N 92-PP "On approval of the Moscow city building codes (MGSN) 6.02-03" Thermal insulation pipelines for various purposes.

2.2.4. Decree of the Government of Moscow of 01.01.01 N 299-PP "On measures to bring the management system of apartment buildings in the city of Moscow in line with the Housing Code of the Russian Federation."

2.2.5. Decree of the Government of the Russian Federation of 01.01.01 N 307 "On the procedure for providing utilities citizens."

2.2.6. Decree of the Gosstroy of Russia dated 01.01.01 N 170 "On approval of the Rules and Norms technical operation housing stock".

2.2.7. GOST R 8. "Metrological support of measuring systems".

2.2.8. GOST 12.0.004-90 "System of labor safety standards. Organization of labor safety training. General provisions".

2.2.9. Intersectoral rules on labor protection (safety rules) for the operation of electrical installations, approved by the Decree of the Ministry of Labor of the Russian Federation of 01.01.2001 N 3, order of the Ministry of Energy of the Russian Federation of 01.01.2001 N 163 (as amended and supplemented).

2.2.10. Rules for the installation of electrical installations approved by the Main Technical Administration, Gosenergonadzor of the Ministry of Energy of the USSR (with amendments and additions).

2.2.11. Rules for the technical operation of electrical installations of consumers, approved by order of the Ministry of Energy of the Russian Federation of 01.01.2001 N 6.

2.2.12. Passport for the automated control unit (AUU) of the manufacturer.

2.2.13. Instructions for installation, start-up, regulation and operation of the automated control unit for heating systems (AUU).

2.3. The provisions of this Regulation are intended for use by organizations that carry out maintenance and repair of automated control units for the central heating system of residential buildings in the city of Moscow, regardless of ownership, legal form and departmental affiliation.

2.4. This Regulation establishes the procedure, composition and terms for the maintenance of automated control units for heating systems (ACU) installed in residential buildings.

2.5. Works on maintenance and repair of automated control units of the heating system (ACU) installed in residential buildings are carried out on the basis of a contract Maintenance concluded between a representative of the owners of a residential building (a managing organization, including a homeowners association, housing cooperative, residential complex or an authorized owner-representative in the case of direct management).

3. Maintenance log

and repair of AUU (Service magazine)

3.1. All operations performed in the course of the performance of maintenance and repair of the ACU are subject to entry in the journal of the performance of maintenance and repair of the ACU (hereinafter referred to as the Service Journal). All sheets of the journal must be numbered and certified by the seal of the Managing Organization.

3.2. Maintenance and storage of the Service Log is carried out by the Managing Organization, which manages the Serviced House.

3.3. Personal responsibility for the safety of the journal rests with the person authorized by the Managing Organization.

3.4. The Service Log contains the following data:

3.4.1. Date and time of maintenance work, including the time the maintenance team received access to the technical room of the house and the time it ended (time of arrival and departure).

3.4.2. The composition of the service team that carries out maintenance of the ACU.

3.4.3. A list of works performed during maintenance and repair, the time for each of them.

3.4.4. Date and number of the contract for the performance of work on the maintenance and repair of the ACU.

3.4.5. Service organization.

3.4.6. Information about the representative of the Managing Organization who accepted the maintenance work of the AC.

3.5. The service log refers to the technical documentation of the Serviced Home and is subject to transfer in the event of a change of the Managing Organization.

and repair of ACU

4.1. Maintenance and repair of ACU are carried out by qualified employees in accordance with the frequency, installed by the application 1 to this Regulation for the performance of work.

4.2. Maintenance and repair work of the AUU is carried out by specialists whose specialty and qualifications comply with the minimum established requirements of clause 5 of these Technological maps.

4.3. Repairs must be carried out at the installation site of the ACU or at the enterprise directly carrying out repairs.

4.4. Preparation and organization of work on the maintenance and repair of ACU.

4.4.1. The managing organization coordinates with the organization planned to be involved in the maintenance of the AC, the work schedule, which may be an annex to the maintenance contract for the AC.

4.4.2. The last name of the maintenance team is reported to the Managing Organization in advance (before the day of maintenance and repair of the ACU). Residents of the Serviced Home must be notified in advance of the work being carried out. Such notice may be in the form of an announcement that is visible to the residents of the building. The duty to notify residents rests with the Managing Organization.

4.4.3. The Managing Organization provides the following documents (copies) for review to the Handling Organization:

Certificate;

Technical certificate;

Installation instructions;

Instructions for start-up and adjustment;

User manual;

Repair manual;

Warranty certificate;

The act of factory tests of the ACU.

4.5. Access of the maintenance team to Utility room Serviced home.

4.5.1. Access to the technical premises of a residential building for maintenance and repair of the ACU is carried out in the presence of a representative of the Managing Organization. Information about the access time of the maintenance team to the technical premises of the Serviced House is entered in the Service Log.

4.5.2. Before starting work, the readings of the control and measuring devices of the ACU are entered in the Service Log indicating the identifier of the control and measuring device, its readings and the time of their fixation.

4.6. Works on maintenance and repair of ACU.

4.6.1. An employee of the maintenance team of the Service organization performs visual inspection ACU units for the absence of leakage, damage, extraneous noise, pollution.

4.6.2. After the inspection, an inspection report is drawn up in the Service Journal, in which information is entered on the condition of the connecting pipes, their joints, and ACU units.

4.6.3. If there are leaks at the joints of the pipes, it is necessary to identify the cause of their occurrence and eliminate them.

4.6.4. Before inspecting and cleaning the ACU elements from contamination, it is necessary to turn off the power supply of the ACU.

4.6.5. The pumps must first be turned off by turning the pump control switches on the control panel front panel to the off position. After that, open the control panel and switch the automatic circuit preparation machines 3Q4, 3Q14 to the off position according to scheme 1 (not shown) (Appendix 2). Then the control controller should be de-energized, for this it is necessary to switch the 2F10 single-pole switch to the off position according to diagram 1.

4.6.6. After performing the above actions, switch the three-pole switch 2S3 to the opening position according to diagram 1. In this case, the phase indicators L1, L2, L3 on the external panel of the control panel should go out.

4.7. Checking the operation of emergency protection and alarms, maintenance of electrical equipment.

4.7.1. Turn off the circuit breaker in the control panel of the operating pump according to wiring diagram ACU control panel.

4.7.2. The pump should stop (the glow of the control panel on the pump will disappear).

4.7.3. The green pump operation light on the control panel should go out and the red pump alarm light should come on. The display of the controller will start flashing.

4.7.4. The backup pump should start automatically (the control panel on the pump will light up, the green light of the backup pump will light up on the control panel).

4.7.5. Wait 1 min. - the standby pump must remain in operation.

4.7.6. Press any button on the controller to reset the blinking.

4.7.7. The L66 card of the ECL 301 controller has the yellow side facing out.

4.7.8. Move up button to go to line A.

4.7.9. Press the I/II circuit selection button twice, the left LED under the card should go out.

4.7.10. The controller display will show the alarm log and ON. In the left bottom corner should be number 1.

4.7.11. Press the minus button on the controller, the display should change to OFF, a double dash should appear in the lower left corner - the alarm has been reset.

4.7.12. Press the I/II circuit selection button once, the left LED under the card will light up.

4.7.13. Use the down button to return to line B.

4.7.14. Checking the protective function of the electric drive AMV 23, AMV 413.

4.7.15. Switch off the automatic power supply of the controller in accordance with the electrical diagram of the ACU control panel.

4.7.16. The controller should turn off (the display will turn off). The electric actuator must close the control valve: verify this by looking at the position indicator of the electric actuator, it must be in the closed position (see the manufacturer's instructions for the electric actuator).

4.8. Checking the operability of automation equipment for a heating point.

4.8.1. Set the ECL 301 controller to manual mode according to the manufacturer's instructions.

4.8.2. In manual mode from the controller, turn on - turn off the circulation pumps (track according to the indication on the switchboard and the control panel on the pumps).

4.8.3. In manual mode, open - close the control valve (track by the indicator of the movement of the electric drive).

4.8.4. Set the controller back to automatic mode.

4.8.5. Perform an emergency transfer test on the pumps.

4.8.6. Check the temperature readings on the controller display with the readings of indicating thermometers in the places where the temperature sensors are installed. The difference should not be more than 2C.

4.8.7. On the controller line on the yellow side of the card, press and hold the shift button, and the controller display will show the supply and process temperature settings. Remember these values.

4.8.8. Release the shift button, the display will show the actual temperatures, the deviation from the settings should be no more than 2C.

4.8.9. Check the pressure maintained by the back pressure regulator (differential pressure maintained by the differential pressure regulator), the setting set during the adjustment of the automatic control unit.

4.8.10. Using the adjusting nut of the AFA pressure regulator, compress the spring (in the case of the AVA regulator, release the spring) and reduce the pressure value to the regulator (check the pressure gauge).

4.8.11. Return the setting of the AFA (AVA) regulator to the working position.

4.8.12. Using the adjusting nut of the differential pressure regulator AFP-9 (adjusting knob AVP) by expanding the spring, reduce the value of the differential pressure (track on pressure gauges).

4.8.13. Return the setting of the differential pressure regulator to its previous position.

4.9. Health check stop valves.

4.9.1. Open/turn the stopcock until it stops.

4.9.2. Assess ease of movement.

4.9.3. According to the readings of the nearest pressure gauge, evaluate the blocking capacity of the shut-off valves.

4.9.4. If the pressure in the system does not decrease or does not decrease completely, it is necessary to establish the reasons for the valve leakage, if necessary, replace it.

4.10. Cleaning the mesh filter.

4.10.1. Before starting work on cleaning the mesh filter, it is necessary to close the taps 31, 32 according to scheme 2 (not shown), located in front of the pumps. Then you should turn off the valve 20 according to scheme 2, located in front of the filter.

4.10.5. After installing the filter cover, it is necessary to open the valves 31, 32 according to scheme 2, located in front of the pumps.

4.11. Cleaning the impulse piping of the differential pressure regulator.

4.11.1. Before cleaning the tubes of the differential pressure regulator, it is necessary to close the taps 2 and 3 according to scheme 2.

4.11.3. To flush the first impulse tube, open tap 2 and flush it out with a jet of water.

4.11.4. The resulting water should be collected in a special container (tank for draining the coolant).

4.11.5. After flushing the first impulse tube, put it back in place and screw it on. union nut.

4.11.6. To flush the second impulse tube, unscrew the union nut securing the second impulse tube, then disconnect the tube.

4.11.7. To flush the second impulse tube, use tap 3.

4.11.8. After flushing the second impulse tube, reattach the tube and tighten the union nut.

4.11.9. After cleaning the impulse pipes, open valves 2 and 3 according to scheme 2.

4.11.10. After opening taps 2 and 3 (Scheme 2), it is necessary to bleed air from the tubes using the union nuts of the differential pressure regulator. To do this, unscrew the union nut 1-2 turns and tighten it after air comes out of the impulse tube, tighten it. Repeat the operation for each of the impulse tubes in turn.

4.12. Cleaning the impulse pipes of the differential pressure switch.

4.12.1. Before cleaning the tubes of the differential pressure regulator, it is necessary to close the taps 22 and 23 according to scheme 2.

4.12.3. To flush the first impulse tube, it is necessary to open the valve 22 according to scheme 2 and wash it with a jet of water.

4.12.4. After flushing the first impulse tube, replace it and tighten the union nut.

4.12.5. To flush the second impulse tube, unscrew the union nut securing the second impulse tube of the differential pressure switch, and then disconnect the tube.

4.12.6. To flush the second impulse tube, use tap 23.

4.12.7. After flushing the second impulse tube, reattach the tube and tighten the union nut.

4.12.8. After cleaning the impulse pipes, open valves 22 and 23 according to scheme 2.

4.12.9. After opening valves 22 and 23 (Scheme 2), it is necessary to bleed air from the tubes using the union nuts of the differential pressure regulator. To do this, unscrew the union nut 1-2 turns and tighten it after air comes out of the impulse tube, tighten it. Repeat the operation for each of the impulse tubes in turn.

4.13. Checking manometers.

4.13.1. For work on calibration of manometers. Before removing them, it is necessary to close taps 2 and 3 according to diagram 2.

4.13.2. Plugs are inserted into the places where the pressure gauges are attached.

4.13.3. Verification tests of pressure gauges are carried out in accordance with GOST 2405-88 and the Method of Verification. "Pressure gauges, vacuum gauges, pressure and vacuum gauges, pressure gauges, draft gauges and thrust gauges" MI 2124-90.

4.13.4. Verification is carried out by specialized organizations whose metrological services are accredited by the Federal Agency for Technical Regulation and Metrology, on the basis of an agreement with the Managing Organization or with the Service.

4.13.5. Certified pressure gauges are installed in place.

4.13.6. After installing the pressure gauges, it is necessary to open valves 31 and 32 according to scheme 2.

4.13.7. The joints of pressure gauges and connecting pipes of the ACU system must be checked for leaks. The check is carried out visually within 1 minute.

4.13.8. After that, you should check the readings of all pressure gauges and record them in the Service log.

4.14. Checking thermometer sensors.

4.14.1. A portable reference thermometer and an ohmmeter are used to test thermometer sensors.

4.14.2. Using an ohmmeter, the resistance between the conductors of the temperature sensor under test is measured. The ohmmeter readings and the time they were taken are recorded. At the point where the temperature is taken by the appropriate sensor, the temperature readings are determined using a reference thermometer. The obtained resistance values ​​are compared with the calculated resistance value for the given sensor and for the temperature determined by the reference thermometer.

4.14.3. If the readings of the temperature sensor do not correspond to the required values, the sensor must be replaced.

4.15. Checking the performance of indicator lamps.

4.15.1. It is necessary to turn on the three-pole switch 2S3 according to scheme 1 (Appendix 2).

4.15.2. Phase indication lamps L1, L2, L3 on the front panel of the control panel should light up.

4.15.4. Then you should press the "Check lamps" button on the front panel of the control panel. The lamps "pump 1" and "pump 2" and "pump alarm" should light up.

4.15.5. After that, apply voltage to the 2F10 controller according to scheme 1, then turn on the 3Q4 and 3Q13 machines (diagram 1).

4.15.6. Upon completion of the check of the condition of the lamps, an entry about this is recorded in the Service log.

5. The procedure for performing work on the technical

maintenance and repair of ACU

5.1. Preparation and organization of work on the maintenance and repair of ACU.

5.1.1. Development and coordination with the managing organization of the work schedule.

5.1.2. Access of the maintenance team to the technical room of the Serviced House.

5.1.3. Carrying out maintenance and repair work of the ACU.

5.1.4. Handover and acceptance of works on maintenance and repair of ACU to a representative of the Managing Organization.

5.1.5. Termination of access to the technical premises of the Serviced Home.

6. AUU repair

6.1. Repair of the ACU is carried out within the terms agreed between the Managing and Maintenance Organizations.

6.2. Work on the repair of ACU should be carried out by an energy engineer and a plumber of the 6th category, depending on the type of repair work.

6.3. For the delivery of workers, equipment and materials to the place of work and back, the delivery of a faulty AC to the repair facility and back to the installation site, a utility vehicle (Gazelle type) is used.

6.4. Units from the reserve fund are installed in place of the repaired AC units for the period of repair.

6.5. When dismantling a faulty AUU unit, the act records the readings at the time of dismantling, the number of the AUU unit and the reason for dismantling.

6.6. Works on the repair and preparation for verification of the ACU are carried out by the repair personnel of a specialized organization serving this ACU.

6.7. In case of failure of one of the elements of the ACU, they are replaced with similar ones from the reserve fund.

7. Labor protection

7.1.1. This Instruction determines the basic requirements for labor protection when performing maintenance and repair of AC.

7.1.2. Maintenance and repair of automated control units is allowed for persons who have reached the age of 18, who have passed a medical examination, theoretical and practical training, a knowledge test in the qualification commission with the assignment of an electrical safety group of at least III and who have received a certificate for admission to independent work.

7.1.3. A locksmith may be exposed to the following health hazards: electric shock; poisoning with toxic vapors and gases; thermal burns.

7.1.4. Periodic testing of the locksmith's knowledge is carried out at least once a year.

7.1.5. The employee is provided with overalls and safety shoes in accordance with applicable standards.

7.1.6. When working with electrical equipment, the employee must be provided with basic and additional protective equipment that ensure the safety of his work (dielectric gloves, dielectric mat, tool with insulating handles, portable grounding, posters, etc.).

7.1.7. The employee must be able to use fire extinguishing equipment, know their location.

7.1.8. The safety of operation of automation devices located in fire and explosion hazardous areas must be ensured by the availability of appropriate protection systems.

8. Final provisions

8.1. When making changes or additions to normative and legal acts, building codes and regulations, national and interstate standards or technical documentation governing the operating conditions of the AC, appropriate changes or additions are made to these Regulations.

Appendix 1

to the Regulations

PERIODICITY OF WORK FOR THE PERFORMANCE OF INDIVIDUAL TECHNICAL

OPERATIONS, USE OF MACHINES AND MECHANISMS

Annex 2

to the Regulations

EXTERNAL AND INTERIOR VIEW OF THE CONTROL BOARD

HARDWARE SPECIFICATION

The figure is not shown.

Annex 3

to the Regulations

HYDRAULIC SCHEME OF AUTOMATED CONTROL UNIT

SYSTEMS OF CENTRAL HEATING OF A RESIDENTIAL HOUSE (AUU)

The figure is not shown.

Appendix 4

to the Regulations

TYPICAL SPECIFICATION OF AUTOMATED CONTROL UNIT

CENTRAL HEATING SYSTEMS FOR RESIDENTIAL BUILDINGS

We will help you understand the concepts associated with the control units of heating and hot water systems, as well as the conditions and methods for using these units. After all, the inaccuracy of terminology can lead to confusion in determining, for example, the permitted type of work during the overhaul of MKD.

The equipment of the control unit reduces the consumption of thermal energy to the standard level when it enters the MKD in an increased volume. The uniform terminology should correctly reflect the functional load that such equipment carries. So far, there is no desired unity. And misunderstandings arise, for example, when the replacement of an outdated assembly with a modern automated one is called the modernization of the assembly. In this case, the outdated node is not improved, that is, it is not upgraded, but simply replaced with a new one. Replacement and modernization is independent species works.

Let's figure out what it is - automated control unit.

What are the control units for heating and water supply systems

The control nodes of any type of energy or resource include equipment that directs this energy (or resource) to consumers and regulates its parameters if necessary. Even a collector in the house, which receives a coolant with the parameters necessary for the heating system and directs it to various branches of this system, can be attributed to the thermal energy management unit.

Elevator units and automated control units can be installed in MKDs connected to a heating network with high coolant parameters (water superheated up to 150 °C). DHW parameters can also be adjusted.

In the elevator unit, the coolant parameters (temperature and pressure) are reduced to the specified values, that is, one of the main control functions is carried out - regulation.

In the automated control unit, automatic feedback control regulates the parameters of the heat carrier, providing the desired air temperature in the room, regardless of outdoor temperature air, and maintains the necessary pressure difference in the supply and return pipelines.

Automated control units for the heating system (AUU CO) can be of two types.

In ACU CO of the first type, the coolant temperature is brought to the specified values ​​by mixing water from the supply and return pipelines using network pumps, without installing an elevator. The process is carried out automatically using feedback from the temperature sensor installed in the room. The coolant pressure is also automatically regulated.

Manufacturers give this type of automated nodes a wide variety of names: heat management node, weather regulation, weather control unit, mixing unit weather control, automated mixing unit, etc.

subtlety

Adjustment must be complete.

Some enterprises produce automated units that regulate only the temperature of the coolant. Lack of a pressure regulator can cause an accident.

AUU CO of the second type includes plate heat exchangers and forms independent system heating. Manufacturers often call them heat points. This is not true and causes confusion when placing orders.

In DHW systems of MKD, liquid thermostats (TRZh) can be installed that regulate the temperature of the water, automated control units DHW system, providing water supply of a given temperature according to an independent scheme.

As you can see, not only automated nodes can be attributed to control nodes. And the opinion that outdated elevator units and TRZh are incompatible with this concept is wrong.

On formation misconception the wording in Part 2 of Art. 166 ZhK RF: “nodes for controlling and regulating the consumption of thermal energy, hot and cold water, gas". It cannot be called correct. Firstly, regulation is one of the functions of management, and this word should not have been used in the given context. Secondly, the word “consumption” can also be considered redundant: all the energy entering the node is consumed and measured by devices. At the same time, there is no information about the purpose to which the control unit directs thermal energy. It can be said more specifically: the control unit for thermal energy consumed for heating (or for hot water supply).

By managing thermal energy, we ultimately manage heating or hot water systems. Therefore, we will use the terms "heating system control unit" and "DHW system control unit".

Automated nodes are new generation control nodes. They meet the most modern requirements for the subject of control of heating and hot water systems, and allow raising the technological level of these systems to the full automation of parameter control processes. temperature regime indoor air and hot water, as well as automation of heat consumption metering.

Elevator nodes and TRZH, due to their design, cannot meet the above requirements. Therefore, we refer them to the control nodes of the previous (old) generation.

So, let's sum up the first results. There are four types of control units for heating and hot water systems. When choosing a control node, find out what type it is.

Can the names be trusted?

Manufacturers of control units based on mixing supply and return pipelines often refer to their products as weather regulators. This name absolutely does not reflect their properties and purpose.

The automated control unit does not regulate the weather. Depending on the outside temperature, it regulates the temperature of the coolant. In this way, the set air temperature is maintained in the room. But the same is done by automated units with heat exchangers and even elevator units (but with less accuracy).

Therefore, we will clarify the name: an automated unit (mixing type) for controlling the heating system. Then you can add its name assigned by the manufacturer.

Manufacturers of automated control units with heat exchangers usually refer to their products as heat substations (TPs). Let's turn to the regulations.

To verify the incorrect identification of automated nodes with TP, let's turn to SNiP 41-02-2003 and their updated version - SP 124.13330.2012.

SNiP 41-02-2003 " Heating network» consider a heating point as a separate room that meets special requirements, which houses a set of equipment for connecting consumers of thermal energy to the heating network and giving this energy the specified parameters for temperature and pressure.

In SP 124.13330.2012, a heating point is defined as a facility with a set of equipment that allows changing the thermal and hydraulic regime of the heat carrier, accounting for and regulating the consumption of thermal energy and heat carrier. This is a good definition of TP, to which the function of connecting equipment to the heating network should be added.

In the Rules for the technical operation of thermal power plants (hereinafter referred to as the Rules), TP is a complex of devices located in a separate room that provides connection to a heating network, control of heat distribution modes and regulation of coolant parameters.

In all cases, the TP links together the complex of equipment and the room in which it is located.

SNiP subdivide heat points to stand-alone, attached to buildings and built into buildings. In MKD, TPs are usually built-in.

The heat point can be group and individual - serve one building or part of the building.

Now we formulate a correct definition.

An individual heating point (ITP) is a room in which a set of equipment is installed for connecting to a heating network and supplying consumers with an MKD or one of its parts of the coolant with regulation of its heat and hydraulic mode to give the parameters of the coolant a predetermined value for temperature and pressure.

AT this definition ITP the main importance is attached to the room in which the equipment is located. This is done, firstly, because such a definition is more consistent with the definition presented in SNiP and SP. Secondly, it warns of the incorrectness of using the concepts of ITP, TP, and the like to denote automated control units for heating and hot water systems manufactured at various enterprises.

Let us also specify the name of the control unit of the type in question: an automated unit (with heat exchangers) for controlling the heating system. Manufacturers may indicate their own product name.

How to qualify work with the control node

Certain works are associated with the use of automated control nodes:

• installation of the control unit;
• repair of the control unit;
• replacement of the control unit with a similar one;
• modernization of the control unit;
• replacement of an outdated design unit with a new generation unit.

Let us clarify what meaning is invested in each of the listed works.

Installation of a control unit implies its absence and the need to install it in an MKD. Such a situation may arise, for example, when two or more houses are connected to one elevator unit (houses on a coupler) and it is necessary to install an elevator unit on each house in order to be able to separately account for the consumption of heat energy and increase responsibility for the operation of the entire heating system in each house. You can install any control node.

Control unit repair engineering systems ensures the elimination of physical wear and tear with the possibility of partial elimination of obsolescence.

Replacing a node with a similar one that does not have physical wear implies the same result as when repairing the node, and can be done instead of repair.

Modernization of the node means its renewal, improvement with the complete elimination of physical and partially obsolescence within existing structure node. Both the direct improvement of an existing node and its replacement with an improved node are all types of modernization. An example is the replacement elevator node to the same node adjustable nozzle elevator.

Replacement of outdated design units with new generation units involves the installation of automated control units for heating and hot water systems instead of elevator units and TRZH. In this case, physical and moral deterioration is completely eliminated.

All of these are independent activities. This conclusion is confirmed by Part 2 of Art. 166 LCD RF, where as an example independent work the installation of the thermal energy control unit is given.

Why you need to define the type of work

Why is it so important to attribute this or that work related to control nodes to a certain type of independent work? This is of fundamental importance when performing selective overhaul. Such repairs are carried out from the funds of the capital repairs fund, formed from the mandatory contributions of the owners of the premises to the MKD.

The list of works on selective overhaul is given in Part 1 of Art. 166 ZhK RF. The above independent works are not included in it. However, in Part 2 of Art. 166 of the Housing Code of the Russian Federation it is said that the subject of the Russian Federation can supplement this list with other works by the relevant law. At the same time, it becomes fundamentally important that the wording of the work included in the list corresponds to the nature of the planned use of the control unit. Simply put, if the node was to be upgraded, then the list should include work with exactly the same name.

Example

St. Petersburg has expanded the list of overhaul works

The law of St. Petersburg dated December 11, 2013 No. 690-120 “On the overhaul of common property in apartment buildings Petersburg" in 2016, the following independent work was included in the list of selective overhaul works: installation of control units and regulation of heat energy, hot and cold water, electrical energy, gas.

The wording is completely borrowed from the Housing Code of the Russian Federation with all the inaccuracies noted by us earlier. At the same time, it clearly indicates the possibility of installing a control and regulation unit for thermal energy, i.e. a control unit for the heating system and the hot water supply system, during selective overhauls carried out in accordance with this law.

The need to perform such independent work is due to the desire to disconnect the houses on the hitch, i.e. houses, the heating systems of which receive the coolant from one elevator unit, and install their own heating system control unit on each house.

The amendment made to the law of St. Petersburg allows you to install both a simple elevator unit and any automated control unit for engineering systems. But it does not allow, for example, to replace the elevator unit with an automated control unit at the expense of the overhaul fund.

Important!

Automated mixing units, which do not include a pressure regulator, are not recommended for use in high-temperature heat supply networks. Automated control units for the DHW system should only be installed with heat exchangers that form closed system DHW.

findings

1. The control nodes include all nodes that direct the energy carrier to the heating or hot water system with the regulation of its parameters, from outdated elevators and TRZh to modern automated nodes.
2. Considering the proposals of manufacturers and suppliers of automated control units, it is necessary to beautiful names weather regulators and heating points to recognize which of the following types of units the proposed product belongs to:

• automated mixing unit for heating system control;
• an automated unit with heat exchangers for controlling a heating system or a hot water supply system.

After determining the type of automated node, its purpose should be studied in detail, specifications, product cost and installation work, operating conditions, the frequency of repair and replacement of equipment, the amount of operating costs and other factors.

1. When deciding on the use of an automated control unit for engineering systems during a selective overhaul of an MKD, it is necessary to make sure that the selected type of independent work on the installation, repair, modernization or replacement of the control unit exactly corresponds to the name of the work included by the law of the constituent entity of the Russian Federation in the list of work on capital MKD repair. Otherwise, the selected type of work on the use of the control unit will not be paid at the expense of the capital repair fund.

We have years of experience and a detailed understanding of the specifics of working with heating networks, including during major repairs, which gives us the opportunity to do the work quickly, efficiently and on time.

As part of the city's energy saving program, the company is engaged in the design, installation and commissioning of automated control units (ACU), which provide thermal energy savings in the central heating system of houses. DKR of Moscow within the framework of the city energy saving program during major repairs recommends our company as an installer of automatic control units. When installing ACU, the company installs a prefabricated unit own production, which has a certificate of the State Standard of Russia, and we also use equipment of domestic and foreign production.

The equipment installed by us is located in all districts of Moscow. Our company performs a full range of works related to the design, manufacture, installation, commissioning and repair of thermal power facilities of any complexity.

To date, we have produced, installed and launched more than 1680 ACUs in Moscow and Moscow Region.

We are confident in the quality of our work and are ready, at your request, to arrange an excursion for you to any of our objects of your choice. You can also visit our production, meet with our specialists and you will have no doubts about the professionalism of the company.

Our facilities have been visited by high-ranking leaders of the city of Moscow more than once.

The mayor of Moscow, Sergei Sobyanin, examined two houses on Nakhimovsky Prospekt, which were undergoing major repairs. Sergei Sobyanin went down to the basement of the house, where he examined the automated central heating control unit manufactured by our company. He highly appreciated the quality of the equipment manufactured and its operation.

Our company works with 106 management companies in Moscow and the nearest suburbs. Currently, the company has more than 800 ACUs for servicing, and we are constantly working to conclude new contracts with the management company.

We design, assemble, manufacture, install, commission and we serve.

1. Automated Control Units of the Central Heating System (AUU CH)
2. Thermal Energy Metering Units (UUTE)
3. TsTP, ITP, BTP
4. Dispatch systems

LLC "SSK" has its own production base, which is equipped with all the necessary mechanisms for operation, special devices, measuring instruments.

The company has 24/7 emergency service and provides a full range of warranty and post-warranty work on equipment for the entire period of cooperation. We have all the relevant documentation and all permits, employees constantly undergo specialized training.

Given the well-coordinated work, a well-thought-out maintenance schedule and production capacity, we can serve up to 1000 objects every month.

Our advantages

1. More than 8 years in the market for the production and maintenance of AUU,
2. More than 800 ACUs for service in Moscow,
3. Service partner of Danfoss, Grundfos, Wilo,
4. We provide a 5-year warranty for Danfoss, Grundfos, Wilo products,
5. Own production base,
6. Certified production and products,
7. 24/7 service and emergency team,
8. The minimum terms of installation, adjustment and repair of equipment,
9. We serve UUTE in Moscow (reading, repair, installation, verification).

Our company is interested in long-term and mutually beneficial cooperation and partnerships.

26.08.2010

The automated control unit for the heating system, manufactured by SANTEKHPROM OJSC, was entered in the Register new technology used in the construction (reconstruction) of objects of the city order.

On July 26, 2010, at a meeting of the Expert Commission on New Equipment, a decision was made to include the automated control unit for the heating system, manufactured by JSC SANTEKHPROM, into the Register of New Equipment Used in the Construction (Reconstruction) of City Order Facilities in Moscow.

Quick reference:

Automated control unit (AUU) is designed for automatic regulation parameters of the coolant (temperature, pressure) entering the heating system of the residential part apartment buildings and other buildings. Regulation is made in accordance with the outdoor temperature. With a decrease in air temperature, the temperature of the heat carrier increases; with an increase in air temperature, the temperature of the heat carrier entering the heating system of the residential part of buildings decreases. Also, with the use of ACU, the estimated pressure drop between the supply and return lines of the heating systems of the residential part of the building is provided.

ACU is a prefabricated unit, fully assembled and ready for installation on site.

At present, SUE "MNIITEP", OOO "Danfoss" and JSC "SANTEKHPROM" have determined the range of AC units, which includes 150 types, which can be divided according to the heat load and equipment installation scheme, and serial production of AC units in the form of blocks has been organized at the SANTEKHPROM plant factory readiness.

The principle of operation of the ACU is as follows. The coolant coming from the central heating station moves through the ACU. As part of the ACU there is a controller. It contains a pre-installed temperature graph recorded on the regime card. With the help of sensors, the actual and set temperature of the coolant is compared. With the help of pumps, the coolant from the return line is mixed with the coolant from the supply line. The supply of heat carrier is regulated by means of a control valve. The differential pressure in the heating system is controlled by a differential pressure regulator.

The ACU consists of the following main components:

mixing pump

motorized control valve

differential pressure controller

magnetic filter

check valve

steel Ball Valves

temperature sensors

Pressure Sensors

pressure gauges

thermometers

outdoor temperature sensor

controller

electrical control cabinet

In two five-story houses in the Metrogorodok area, as part of a selective overhaul of engineering systems, the Prefecture of the Eastern Administrative District of Moscow, SANTEKHPROM OJSC and Danfoss LLC installed ACU. They replaced the elevator nodes. The heaters were also replaced. On new heating appliances automatic thermostats were installed. Balancing valves were installed on the risers of the heating system. In the subsequent heating season, monitoring of heat consumption in these houses was carried out:

• The actual consumption of thermal energy in the house amounted to 425.7 Gcal;
• The normative consumption of thermal energy amounted to 673.7 Gcal;
• The savings amounted to 248 Gcal or 37%.

Another house located in the same area and powered by the same CHP as the first house showed the following results:

• The actual consumption of thermal energy in the house amounted to 339.8 Gcal;
• The normative consumption of thermal energy amounted to 493.8 Gcal;
• The savings amounted to 154 Gcal or 31%.

Under the program for the overhaul of residential buildings in the city of Moscow in 2008-2010, it is planned to install more than 1000 automatic control units. As of July 2010, about 600 ACUs have been installed in various districts of the city of Moscow. According to the information of the head of the municipal economy complex, the results of monitoring of residential buildings in the past heating season showed that the savings in thermal energy consumption is up to 34%.

Thus, savings in the consumption of thermal energy in residential buildings can be achieved, in particular, if the following engineering equipment is used:

AUU factory made.

balancing valves.

Heating appliances with built-in automatic thermostats.

Extract from the Register of new equipment according to Protocol No. 3/2010 of the Expert Commission dated July 26, 2010

Name of the sample of new technology: Automated control unit of the heating system (AUU CO).

Purpose and scope: AUU for heating systems with regulation (maintenance) of temperature and pressure parameters of the coolant in heating systems. It is used in accordance with the current energy saving standards when connecting residential and public buildings to the central heating station instead of the elevator control unit. For public buildings it is possible to regulate ventilation and air conditioning parameters.

Developer, manufacturer, supplier: State Unitary Enterprise "MNIITEP", OJSC "SANTEKHPROM"

Year of issue: 2008

Technical characteristics (performance, power, etc.): Specifications:

B) Temperature conditions:

Local water °C without mixing, return pump with three-way valve:

Superheated water °C with mixing, inlet pump with differential pressure controller:

Superheated water °C with mixing, return pump:

Operating conditions. Guarantee period services: Operating conditions:

A) exhaust ventilation;

B) Electricity (uninterrupted power supply 220V);

C) The outside air sensor should be placed outside the building on the north wall;

D) Backup pump (to prevent freezing of the heating system in the event of a breakdown of the main pump);

E) A separate room, possibly a basement type, with a door and a lock (to restrict access by unauthorized persons).

The temperature in the room should be in the range from +1 to +30 ° C.

Periodic inspection of the system by qualified service personnel.

Service life: 5 years without repair.

Price per unit, rub. (according to the applicant): Depends on the scheme 1-12 and the load and ranges from 117,392 rubles. without VAT up to 1,367,844 rubles. without VAT

Performance indicators. Payback: Allows you to reduce the consumption of thermal energy by 50%. Planned profit on energy saving resources. Payback is on average 2 years.

The company STC "Energoservice" supplies, design and install automatic control units.

The automated control unit is a compact individual heat point.

Automated control unit (AUU). Automatic control unit.

The automated control unit is a compact individual heat point, which is designed to control the parameters of the coolant in the heating system, depending on the outdoor temperature and the operating conditions of the building.

The automated control unit (AUU) is designed to automatically control the parameters of the coolant (temperature, pressure) entering the heating system. The parameters are adjusted according to the outdoor temperature. When the air temperature drops, the temperature of the coolant increases; when the air temperature rises, the temperature of the coolant entering the heating system decreases. Also, with the use of ACU, the estimated pressure drop between the supply and return pipelines of heating systems is provided.

Automatic knot control unit (AUU) is a factory-ready unit, fully assembled and ready for installation on site.

The principle of operation of the automated control unit (ACU) is as follows:

The coolant coming from the central heating station moves through the ACU. As part of the ACU there is a controller. It contains a pre-installed temperature graph recorded on the regime card. With the help of sensors, the actual and set temperature of the coolant is compared. With the help of pumps, the coolant from the return line is mixed with the coolant from the supply line. The supply of heat carrier is regulated by means of a control valve. The differential pressure in the heating system is controlled by a differential pressure regulator.

The AUU includes the following main components: a mixing pump, an electric control valve, a differential pressure regulator, a magnetic filter, a check valve, steel ball valves, temperature sensors, pressure sensors, pressure gauges, thermometers, an outdoor air temperature sensor, a controller, an electric control cabinet .

Automatic control units (AUU) provide:

pump circulation of the coolant in the heating system;

monitoring the implementation of the required temperature chart both supply and return heat carriers (prevention of overheating and hypothermia of buildings);

maintaining a constant pressure drop at the input to the building, which ensures the operation of the heating system automation in the design mode;

the function of coarse and fine cleaning of the coolant supplied to the system in operating mode and cleaning of the coolant when the system is filled;

visual control of parameters of temperature, pressure and differential pressure of the coolant at the inlet and outlet of the AHU;

possibility remote control coolant parameters and operating modes of the main equipment, including alarms.

when insulating facades, when changing thermal load building, ACU makes it possible to reconfigure the operation of the node without additional costs.

An example of the implementation of scheme No. 9 AUU

Schematic diagram of an automated control unit with mixing pumps on the jumper for temperatures up to AUU 150-70 C

at one and two-pipe systems heating with thermostats (P1 - P2 ≥ 12 m w.c.)

An example of the implementation of scheme No. 1 AUU

Schematic diagram of an automated control unit with a sufficient available pressure drop at the inlet

(P1 - P2 > 6 m water column) for temperatures up to ACU t = 95–70 °С