INTERSTATE COUNCIL FOR STANDARDIZATION. METROLOGY AND CERTIFICATION

INTERSTATE COUNCIL FOR STANDARDIZATION. METROLOGY AND CERTIFICATION

INTERSTATE

STANDARD

Official publication

Standardinform

GOST 34060-2017

Preface

The goals, basic principles and basic procedure for carrying out work on interstate standardization are established in GOST 1.0-2015 “Interstate standardization system. Basic provisions" and GOST 1.2-2015 "Interstate standardization system. Interstate standards, rules and recommendations for interstate standardization. Rules for development, acceptance, updating and cancellation"

Standard information

1 DEVELOPED by the Closed Joint Stock Company "ISZS-Consult" (CJSC "ISZS-Consult"), Technical Committee for Standardization TK 400 "Performance of work in construction, standard technological. organizational processes"

2 INTRODUCED by the Federal Agency for Technical Regulation and Metrology (Rosstandart)

3 ADOPTED by the Interstate Council for Standardization, Metrology and Certification (protocol dated June 30, 2017 No. 100-P)

4 By order of the Federal Agency for Technical Regulation and Metrology dated January 16, 2016, the non-4th interstate standard GOST 34060-2017 was put into effect as a national standard of the Russian Federation on February 1, 2018.

5 INTRODUCED FOR THE FIRST TIME

Information about changes to this standard is published in the annual information index “National Standards”. and the text of changes and amendments is in the monthly information index “National Standards”. In case of revision (replacement) or cancellation of this standard, the corresponding notice will be published in the monthly information index “National Standards”. Relevant information, notifications and texts are also posted in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet ()

€> Standardinform. 2016

In the Russian Federation, this standard cannot be reproduced in whole or in part. replicated and distributed as an official publication without permission from the Federal Agency for Technical Regulation and Metrology

And

GOST 34060-2017

1 area of ​​use............................................... ...................1

3 Terms and definitions................................................... .................2

4 Symbols and abbreviations.................................................... ...............3

5 General provisions................................................... .....................4

6 Requirements for design, working and technical documentation....................................5

7 Requirements for construction and installation work............................................................ 5

8 Requirements for commissioning work.................................................... ....6

9 Collection of initial data for reconstructed ventilation and air conditioning systems.... 10

10 Requirements for measurement techniques (methods)............................................................. 10

11 Adjustment of individual devices of ventilation and air conditioning systems.....................15

12 Determining the amount of emissions into the room harmful substances....................22

13 Setting up anti-smoke ventilation systems....................................................22

14 Setting up an air conditioning system with local closers and heat exchangers.....23

15 Setting up the air conditioning system with variable flow air...................24

16 Setting up the air heating system.................................................... ..25

17 Composition and rules for preparing reporting documentation....................................................26

18 Control of work performance.................................................... ............26

19 Requirements for safe performance of work....................................................27

Appendix A (mandatory) Form of passport for the ventilation system (system

air conditioning)......................................................... 28

Appendix B (mandatory) Form of the ventilation system acceptance certificate

and air conditioning after complex adjustment....................................30

on testing and adjustment of ventilation and air conditioning systems.................................31

for reconstructed ventilation and air conditioning systems..........32

GOST 34060-2017

INTERSTATE STANDARD

Internal engineering networks of buildings and structures

TESTING AND ADJUSTMENT OF VENTILATION AND AIR CONDITIONING SYSTEMS

Rules for carrying out and monitoring the execution of work

Internal buildings and structures utilities.

Testing and adjusting the ventilation systems and air-conditioning. Rules of carrying out and control of performance of works

Date of introduction - 2018-02-01

1 area of ​​use

1.1 This standard establishes the procedure for performing testing and adjustment of ventilation and air conditioning systems (including air heating systems, process ventilation and smoke protection) for the entire period of operation of the systems, including commissioning work on those being commissioned, under construction, reconstructed, expanded and technically re-equipped enterprises, buildings and structures.

1.2 This standard is intended for use in construction, reconstruction, and repair. maintenance and disposal of ventilation and air conditioning systems of buildings and structures. except for systems of civil defense structures and premises intended for working with radioactive and explosive substances.

2 Normative references

8 of this standard uses regulatory references to the following interstate standards:

GOST 8.271-77 State system ensuring uniformity of measurements. Pressure measuring instruments. Terms and Definitions

GOST 12.1.005-88 System of occupational safety standards. General sanitary and hygienic requirements for the air in the working area

GOST 12.1.007-76 System of occupational safety standards. Harmful substances. Classification and general safety requirements

GOST 12.1.012-2004 System of occupational safety standards. Vibration safety. General requirements

GOST 12.3.018-79 System of occupational safety standards. Ventilation systems. Aerodynamic test methods

GOST 21.602-2003 System of design documentation for construction. Rules for the execution of working documentation for heating, ventilation and air conditioning

GOST 2405-88 Pressure gauges, vacuum gauges, pressure and vacuum gauges. pressure gauges, draft gauges and draft gauges. General technical conditions

GOST 6376-74 Manual anemometers with a counting mechanism. Specifications

GOST 7502-98 Metal measuring tapes. Specifications

Official publication

GOST 34060-2017

GOST ISO 8041-2006 Vibration. Impact of human vibration. Measuring instruments GOST 15807-93 Borehole pressure gauges. General technical requirements and test methods GOST 16519-2006 (ISO 20643:2005) Vibration. Determination of vibration characteristics of manual and manually operated machines. General requirements

GOST 16844-93 Vibration. Requirements for testing mechanical hammers GOST 17168-82 Octave and third-octave electronic filters. General technical requirements and test methods

GOST 17187-2010 (IEC 61672-1:2002) Sound level meters. Part 1. Technical requirements GOST 18140-84 Differential pressure gauges GSP. General technical conditions GOST 21339-82 Tachometers. General technical conditions

GOST 22270-76 Equipment for air conditioning, ventilation and heating. Terms and Definitions

GOST 23337-2014 Noise. Methods for measuring noise in residential areas and in residential and public buildings

GOST 28243-96 Pyrometers. General technical requirements

GOST 28498-90 Liquid glass thermometers. General technical requirements. Test methods

GOST 30494-2011 Residential and public buildings. Indoor microclimate parameters GOST 32548-2013 Ventilation of buildings, air distribution devices. General technical conditions

Note - When using this standard, it is advisable to check the validity of the reference standards in the public information system - on the official website of the Federal Agency for Technical Regulation and Metrology on the Internet or using the annual information index “National Standards”, which was published as of January 1 of the current year, and on issues of the monthly information index “National Standards” for this year. If the reference standard is replaced (changed), then when using this standard you should be guided by the replacing (changed) standard. If the reference standard is canceled without replacement, then the provision to which a reference is made to it is applied in the part that does not affect the reference.

3 Terms and definitions

This standard uses terms according to GOST 8.271. GOST 22270. GOST 32548, as well as the following terms with corresponding definitions:

3.1 ventilation: Air exchange in rooms to remove excess heat, moisture, harmful and other substances in order to ensure an acceptable microclimate and air quality in the serviced or work area.

3.2 general exhaust ventilation: Ventilation that removes contaminated air from the entire volume of the room.

3.3 natural ventilation (aeration): Ventilation carried out under the influence of difference specific gravity(temperatures) of external and internal air, under the influence of wind or their combined action, as well as under the influence of a complex of technical means that implement air exchange.

3.4 local ventilation: Ventilation carried out by an exhaust or supply mechanical system, preventing the spread of harmful substances throughout the room.

3.5 mechanical ventilation: Ventilation carried out using special draft stimulants (fans, compressors, pumps, ejectors, as well as complexes of technical means that implement such air exchange).

3.6 general supply ventilation: ventilation carried out by a mechanical air supply system to the room.

3.7 air distributor (air distribution device): A device designed to form a supply jet in order to provide the required parameters air environment in the work area.

3.8 harmful substances: Substances for which hygienic standards have established a maximum permissible concentration (MPC).

3.9 deflector: A device installed with a specially shaped head that creates additional air discharge due to wind pressure.

3.10 choking device: A device that creates an organized flow of supply air. aimed at the workplace.

GOST 34060-2017

3.11 free area: Free area of ​​the ventilation grille opening for air passage.

3.12 test: Determination of actual values ​​of the main characteristics of ventilation and air conditioning systems, equipment or devices in operating mode.

3.13 complex adjustment: Testing of all ventilation and air conditioning systems of a building while operating simultaneously with related systems in automatic mode in order to achieve compliance of the actual data with the parameters of the design documentation.

3.14 air conditioning: Automatic maintenance of all or individual parameters air (temperature, relative humidity, cleanliness, speed of movement) in order to ensure, as a rule, optimal meteorological conditions that are most favorable for the well-being of people, conducting the technological process, ensuring the safety of valuables, as well as a set of technical means that ensure this process.

3.15 air exchange rate: The ratio of the hourly volume of removed or supplied air to the building volume of the room.

3.16 local suction: A device for collecting harmful and explosive gases, dust, aerosols and vapors (umbrella, side suction, fume hood, air intake casing, etc.) at the places of their formation (machine, apparatus, bath, work table, chamber , cabinet, etc.), connected to the air ducts of local exhaust systems and, as a rule, being an integral part of the process equipment.

3.17 adjustment (testing and adjustment): A set of works performed in order to achieve the operability of systems in compliance with the parameters of design documentation or technological requirements during the operation of the systems.

3.18 adjustment of ventilation and air conditioning systems for sanitary and hygienic effect and/or technological conditions of the air environment: Testing and adjustment of ventilation and air conditioning systems during their simultaneous operation in automatic mode at full technological load to ensure sanitary and hygienic parameters of the microclimate in the premises and/ or at workplaces, as well as to maintain technological air conditions in production premises.

3.19 commissioning organization: Entity or individual entrepreneur, having a certificate of admission to perform work on setting up ventilation and air conditioning systems.

3.20 backpressure (vacuum): Excessive (insufficient) air pressure in a production room compared to neighboring rooms or the atmosphere, created by ventilation means by exceeding the inflow volume over the exhaust (excess of the exhaust over the inflow).

3.21 suction: The process of air entering through leaks on the suction part of the air ducts.

3.22 commissioning work (commissioning): A set of works performed after completion of installation of systems at the commissioning stage in order to ensure compliance of the operation of equipment and system devices with the parameters specified in the design and working documentation.

4 Symbols and abbreviations

4.1 The following symbols are used in this standard:

C is the heat capacity of air. kJ/(kg *C); c w - heat capacity of water. kJ/(kg *C);

F - area of ​​open openings (holes), m2;

G - mass air flow, kg/s:

/ f - live section of the grating, m 2;

J, is the enthalpy (heat content) of air up to the air cooler. kJ/kg:

J 2 - enthalpy (heat content) of air after the air cooler. kJ/kg;

L - air flow. m 3 / h;

L nin - minimum air flow. m 3 / h;

P„ - total pressure. Pa:

P C1 - static pressure. Pa;

P d - dynamic pressure (velocity pressure). Pa;

LR - pressure drop. Pa: p - air density, kg/m3;

Q - heat transfer of the air heater. kW;

O p, is the calculated heat transfer of the air heater. kW;

GOST 34060-2017

G, is the temperature of the coolant before the air heater. *WITH;

G 2 - temperature of the coolant after the air heater. 'WITH:

G f - actual coolant temperature. in C;

Gpr - design temperature of the coolant. *WITH:

(n - outside air temperature. *C;

Outdoor air temperature at design conditions. "WITH:

(ek - final water temperature. *C;

Initial water temperature, *C:

V - air speed, m/s:

IV - water consumption in the irrigation chamber, kg/h:

J - d diagram - graphical relationship between parameters: temperature, relative humidity, enthalpy, moisture content. partial pressure of water vapor, characterizing the state of moist air at constant pressure.

4.2 b of this standard the following abbreviations are used:

PD - design documentation:

MPC - maximum permissible concentration:

RD - working documentation;

ACS - air conditioning system;

CC - central air conditioner;

EKD - ejection air conditioner-closer.

5 General provisions

5.1 Work on testing and adjustment of ventilation and air conditioning systems is carried out by organizations that have permission for this type of work, established by national legislation*.

5.2 The work contractor must have:

Necessary equipment, measuring instruments, tools and personal protective equipment.

Note - The adjustment of the ventilation and air conditioning system is usually carried out by a permanent team of performers.

5.3 When creating, operating, disposing of, testing and adjusting ventilation and air conditioning systems, the following should be done:

Commissioning work when commissioning buildings and structures, when changing the technological regime of enterprises, after repairing systems:

Adjustment to ensure sanitary and hygienic microclimate conditions (sanitary and hygienic effect) in operated buildings in the absence of the necessary air parameters in the premises;

Adjustment of technological parameters of the air environment in production premises, if in them:

1) the required technological microclimate conditions are not maintained;

2) sanitary standards are not ensured in the work area or workplaces;

Testing (within specified periods) of operating systems for the presence of substances hazardous to human health in premises where substances hazardous to people are emitted;

Testing (diagnostics, monitoring, energy audit) of operating systems to assess their effectiveness or to reduce energy costs;

Research in the preparation of initial data for the reconstruction or disposal of systems.

* In the Russian Federation, Order of the Ministry of Regional Development of the Russian Federation dated December 30, 2009 No. 624 “On approval of the list of types of work for engineering surveys, for the preparation of design documentation, for construction, reconstruction. capital repairs of capital construction projects that affect the safety of capital construction projects.”

GOST 34060-2017

6 Requirements for design, working and technical documentation

6.1 To carry out work on testing and adjustment of ventilation and air conditioning systems with special requirements, the following sections must be presented in the design documentation (PD): “security environment", "fire safety", "protection from noise and vibration", etc.

6.2 Working documentation (DD). transferred for testing and adjustment of ventilation and air conditioning systems must meet the requirements of GOST 21.602 and include text materials, drawings and diagrams.

6.3 PD and RD drawings with changes made during construction and installation work must be agreed upon with the design organization.

6.4 Technical documentation for the equipment must contain the data necessary for installation, commissioning, maintenance and disposal.

7 Requirements for construction and installation work

7.1 Before starting commissioning work Construction and installation work must be carried out in accordance with the requirements of the RD. If there are deviations from the RD, drawings with changes - as-built drawings - should be submitted.

7.2 During the installation of ventilation and air conditioning systems (if there is a requirement for verification in the RD), air duct networks or individual sections of air ducts hidden by building structures must be checked for tightness using aerodynamic testing methods in accordance with GOST 12.3.018.

NOTE - If individual parts of the system have different tightness classes, then tests should be carried out for each part at a pressure corresponding to the values ​​​​specified in the RQ. If tests are performed on all parts in a single assembly, the pressure should be that of the highest leakage class and the test results should be assessed by the sum of the maximum permissible leaks for the various parts.

7.3 If the RD does not contain requirements for the tightness of air ducts and information about the tightness class, tightness should be ensured according to the permissible loss value.

Allowable losses or leaks of air through leaks in air ducts should not exceed the air flow rate L, mA/h. calculated by the formula

where IAj is the total developed area of ​​the system’s air ducts, m2;

f- specific losses or suction, m^h m 2), per 1 m 2 of the developed area of ​​​​air ducts. determined by the formulas:

p is the average static pressure of the calculated (tested) part of the system. Pa.

Notes

1 Tightness class A is applied to open air ducts and elements of ventilation systems located in serviced premises, as well as to air ducts in which the pressure drop relative to the internal air does not exceed 150 Pa. Air leaks in air conditioners, air handling units and devices of ventilation and air conditioning systems should not exceed the leakage value for tightness class A.

2 Tightness class B is used for air ducts located outside the ventilated space, or for air ducts in the ventilated space with a pressure difference relative to the internal air of more than 150 Pa.

3 Tightness class C or D is used for special ventilation systems, tests of which are carried out according to a program developed in accordance with the requirements of the RD.

GOST 34060-2017

7.4 If parts of the system have different classes tightness, each part should be tested separately at the design pressure corresponding to that part of the system.

7.5 Allowable air losses or leaks in the system should not exceed 8% of the air flow of the air duct.

7.6 Equipment transferred for commissioning work must comply with the specifications specified in the RD. and have appropriate certificates, technical passports and other documents certifying the quality of the equipment.

7.7 Ventilation equipment with an electric motor or actuator drive. must be checked by briefly putting it into operation and checking the direction of rotation.

7.8 Checking the installation of the ventilation and air conditioning system for visible damage and the correctness of the work should be carried out by visual inspection and measuring control. Special attention should be given to air ducts with flange and seam connections, made of flexible and metal materials, in which the pressure exceeds the ambient pressure by more than 500 Pa. as well as ensuring the density of hatches and filters.

7.9 Checking the installation should also be carried out on the accompanying heating and cooling pipeline systems. water supply, drainage, protection devices, alarm and control devices, etc.

7.10 A list of defects is drawn up for deficiencies identified during the inspection of construction and installation works. Each defect must be noted in the statement indicating the method of elimination.

7.11 It is not allowed to carry out commissioning work on ventilation and air conditioning systems until the identified deficiencies are eliminated.

8 Requirements for commissioning work

8.1 General provisions

8.1.1 Commissioning of ventilation and air conditioning systems is carried out at enterprises, buildings and structures being commissioned, under construction, reconstructed, expanded and technically re-equipped.

8.1.2 Commissioning work begins after completion of construction and installation work and in the presence of the necessary documents (acts, protocols, etc. on the completion of installation work).

8.1.3 The technology for performing commissioning work on ventilation and air conditioning systems includes two stages:

Individual adjustment of air flow rates of the ventilation and air conditioning system to values. specified in the RD. including testing of equipment included in the system):

Comprehensive adjustment of all simultaneously switched on ventilation and air conditioning systems of a building with accompanying adjacent engineering networks and equipment, protection devices. control and alarm.

8.1.4 Commissioning of ventilation and air conditioning systems includes:

Review and analysis of PD and technical documentation of manufacturers, compiling a list of comments to the specified documentation and measures to eliminate them, monitoring the elimination of comments;

Visual inspection of installed equipment;

Checking the completed construction and installation works for compliance with the PD and technical documentation of the manufacturing enterprises:

Perform commissioning work according to 8.2-8.5.

8.2 Individual adjustment

8.2.1 Individual adjustment should be performed for each piece of equipment included in the ventilation and air conditioning system in accordance with the PD and technical documentation of the manufacturer.

8.2.2 Individual adjustment of ventilation and air conditioning systems includes:

Checking the compliance of the actual execution of ventilation and air conditioning systems with PD;

GOST 34060-2017

Testing fans when operating in ventilation and air conditioning systems and checking the compliance of the actual characteristics with the PD parameters and technical documentation of the manufacturer;

Adjustment of ventilation and air conditioning systems in order to achieve PD parameters for air flow in air ducts, air distribution and air exhaust devices, local suction, as well as air exchange in rooms;

Checking the main performance indicators of smoke ventilation systems;

Testing of natural ventilation devices;

Testing and adjustment of air humidification equipment;

Checking the operation of irrigation chambers (if they are included in the project), the position of the water level in the pans, the uniformity of water spray in nozzles or water distribution manifolds;

Checking the uniform heating (cooling) of heat exchangers and the absence of moisture removal through drop eliminators;

Determination of air flow and aerodynamic resistance of air purification devices;

Checking the tightness of air ducts.

Note - If the requirement for the tightness of air ducts is provided for by the RD or technical installation conditions, leak tests are performed during the construction and installation work.

8.2.3 Testing of ventilation equipment and regulation of air flow in the ventilation system includes;

Checking compliance with the RD drawings for the actual execution of ventilation systems;

Testing of fans when operating in a ventilation system - determining the compliance of the actual characteristics with the technical documentation of the equipment manufacturer and the PD (air flow, total pressure, rotation speed, power consumption);

Testing and processing of measurement results in accordance with GOST 12.3.018;

Adjustment of the ventilation system in order to achieve PD indicators for air flow in air ducts, air distribution and air exhaust devices, as well as air exchange in rooms;

Analysis of test results.

8.2.4 Ventilation systems designed to work with process equipment are tested and adjusted after installation of the equipment.

8.2.5 Deviations of actual air flow indicators from the stipulated indicators of the taxiway are allowed:

Within ±8% - in terms of air flow passing through the air distribution and air exhaust devices of general ventilation and air conditioning systems, provided that the required pressure (rarefaction) of air in the room is ensured;

Up to >10% - in terms of air flow removed through local suction and air flow supplied through showering devices.

8.2.6 The results of individual tests should be presented in accordance with Appendix A.

8.3 Complex setup

8.3.1 Complex adjustment of ventilation and air conditioning systems should be carried out according to the work program and schedule developed by the customer or the commissioning organization on his behalf.

8.3.2 During the commissioning period, continuous monitoring of the operation of ventilation and air conditioning system equipment must be organized.

8.3.3 Complex adjustment of systems includes;

Checking the performance of ventilation devices and equipment during simultaneous operation of all systems of a building or structure;

Checking the performance of ventilation and air conditioning systems together with associated heating and cold supply systems. water supply and sanitation under operating modes. specified in the RD;

Checking the main performance indicators of smoke ventilation systems for compliance with the requirements of the RD and the program;

Testing the functioning of equipment, checking and setting up protection, alarm and regulation sensors.

GOST 34060-2017

8.3.4 The procedure for eliminating installation defects identified during testing of systems is developed by the commissioning organization and agreed with the customer.

8.3.5 The results of complex adjustment are documented in the form of a certificate of completion of complex adjustment in accordance with Appendix B.

8.4 Adjustment of ventilation and air conditioning systems

on the sanitary and hygienic effect and/or technological conditions of the air environment

8.4.1 Adjustment of ventilation and air conditioning systems for sanitary and hygienic effect and/or technological conditions of the air environment should be carried out according to the technical specifications or work program developed by the customer or on his behalf by the commissioning organization.

8.4.2 Adjustment of ventilation and air conditioning systems should be carried out in buildings (rooms, workshops, individual areas, etc.). operating in operating technological mode, if:

The required microclimate parameters are not provided;

The state of the air environment does not meet the requirements of current sanitary standards and regulations:

Noise levels from the effects of ventilation and air conditioning systems in work areas exceed standard values.

8.4.3 Adjustment for the sanitary-hygienic effect and/or technological conditions of the air environment should be carried out in operating mode (at the design load of the process equipment) with recalculation of the operating mode of the systems for the design external conditions.

8.4.4 The setup program should include:

Preparatory work;

Identification of design, installation and operation deficiencies;

Aerodynamic testing of existing ventilation and air conditioning systems;

Inspection of the sanitary and hygienic condition of the air environment of the working area of ​​the premises or workplaces.

Note - During the examination, the following is determined: temperature, relative humidity, air speed, intensity of thermal radiation, content of harmful substances in the air, pressure differences between rooms, etc.:

Measuring the noise level in a room with ventilation and air conditioning systems operating in operating mode;

Testing and adjusting the operation of local suction and ventilated shelters:

Checking the effectiveness of air purification devices;

Determination of the actual amount of heat, moisture, gases released during the production process:

Adjustment of ventilation equipment, including aeration devices;

Measurement of vibration of equipment of ventilation and air conditioning systems in serviced premises;

Testing and adjustment of coolant control valves:

Determining the nature of the distribution of temperature, humidity and air speed, the content of harmful substances in the work area and at the workplace;

Comprehensive testing of the efficiency of ventilation and air conditioning systems with automation and control devices through repeated measurements of air parameters and sampling for the content of harmful substances;

Requirements for the prevention, reduction and/or localization of dangerous and harmful production factors at the places of their occurrence and/or action;

Requirements for pressure differences between rooms and air purity.

8.4.5 After adjusting the air conditioning systems, the internal air parameters must correspond to the data specified in the program or given in GOST 30494 (residential and public buildings) or GOST 12.1.005 (industrial enterprises).

8.4.6 The accuracy of maintaining indoor microclimate parameters after setting up air conditioning systems in automatic control mode must be maintained within the following limits:

Temperature - ±2 *С;

GOST 34060-2017

Relative humidity - ±7%;

Air speed - ±0.1 m/s.

Note - For air conditioning systems, it is possible to ensure a different accuracy of parameters if this is provided for by the production technology or the requirements of the work program.

Microclimate indicators must correspond to the data specified in the program or to the permissible values ​​of microclimate indicators in accordance with GOST 12.1.005.

8.4.8 Requirements for the permissible content of harmful substances in the air of a working area apply to all workplaces, regardless of their location in the production area, for permanent or temporary stay of workers.

8.4.9 If it is impossible to ensure the required parameters of the indoor air environment by means of adjustment, the commissioning organization should develop technical solutions to ensure parameters in an amount sufficient to carry out construction and installation work. If necessary, justification and initial data for revising the RD should be provided (see 9.1-9.3).

8.5 Testing, diagnostics and monitoring of ventilation and air conditioning systems

8.5.1 Periodic testing, inspection, diagnostics and monitoring of operating systems should be performed to evaluate the operation of ventilation and air conditioning systems, search for reasons causing parameter deviations, or to improve the efficiency of systems.

8.5.2 Deadlines periodic testing installed in accordance with the requirements of production technology, but at least once every two years - for general ventilation and air conditioning systems and once a year - for local exhaust and local supply ventilation systems.

Note - After reconstruction of ventilation systems or changes in the technological process, equipment and reconstruction of the premises, tests should be performed regardless of the timing of periodic monitoring.

8.5.3 Tests of ventilation systems serving production premises of categories A and B should be performed at least once a year: tests of systems serving production premises of categories C, D and D should be performed at least once every two years: tests of systems, in which it is possible to release harmful substances of the 1st and 2nd hazard classes (GOST 12.1.007) - once a month.

Testing of general mechanical and natural ventilation systems - once every three years.

Notes

1 Premises of category A (increased explosion and fire hazard) are characterized by the presence of flammable gases, flammable liquids with a flash point of no more than 28 * C in quantities capable of forming explosive vapor-gas-air mixtures, upon ignition of which a calculated excess explosion pressure in the room develops, exceeding 5 kPa. Or the presence of substances and materials capable of exploding and burning when interacting with water, air oxygen or with each other in such quantities that the calculated excess explosion pressure in the room exceeds 5 kPa.

2 Category B premises (explosion and fire hazard) are characterized by the presence of flammable dusts or fibers, flammable liquids with a flash point of more than 28 * C. flammable liquids in quantities capable of forming explosive dust-air and steam-air mixtures, upon ignition of which a calculated excess explosion pressure in the room exceeds 5 kPa.

3 Premises of category B (fire hazardous) are characterized by the presence of flammable and low-flammable liquids, solid flammable and low-flammable substances and materials (including dust and fibers), substances and materials that, when interacting with water, air oxygen or with each other, can only burn under the condition , that the premises. in which they are located do not belong to category A or B.

4 Premises of category G (moderate fire hazard) are characterized by the presence of non-combustible substances and materials in a hot, incandescent or molten state, the processing of which is accompanied by the release of radiant heat, sparks and flames; flammable gases, liquids and solids that are burned or disposed of as fuel.

GOST 34060-2017

8.5.4 Tests, depending on the conditions and features of the technological process in the production room, should be carried out in accordance with the requirements for measurement methods specified in 10. During tests, as a rule, the following parameters of the air environment are determined:

Concentration of harmful substances in the air of the working area and supply air according to 10.6;

Air temperature of the working area and surface of technological equipment according to 10.1;

Supply air temperature according to 10.1;

Air flow speeds and temperatures according to 10.1,10.4;

Relative air humidity of the working area according to 10.2;

Air velocities in open working and transport openings according to 10.4;

Thermal irradiation intensity according to 10.1.5;

Suction speed in the plane of the suction opening of local suction according to 10.4;

Pressure difference or vacuum between rooms or external environment according to 10.3;

Level of noise and vibration at workplaces created by ventilation systems according to 10.7-10.8.

8.5.5 The results of periodic tests of ventilation and air conditioning systems are drawn up in accordance with section 17.

9 Collection of initial data for reconstructed ventilation systems

and air conditioning

9.1 Collection of initial data is carried out if it is not possible to ensure the creation or maintenance of the required internal air parameters by means of adjustment, as well as when the technological regime in the room changes.

9.2 When collecting initial data for the design of reconstructed ventilation and air conditioning systems, the following must be determined;

Type and quantity of technological equipment that releases harmful substances into indoor air;

Technological equipment that requires localization of released harmful substances by installing shelters and/or local suction, as well as the required volumes of removed air;

The amount of harmful substances released from the equipment, which form the sanitary and hygienic state of the air environment, as well as the pattern of their distribution in the volume of the room;

Thermal characteristics of building enclosures for calculating heat losses through external enclosures and determining heat gain from solar radiation through light openings:

The need for a device for purifying ventilation emissions to protect the environment;

The feasibility and possibility of using energy-saving solutions, as well as heat and cold recovery installations;

Development of proposals for the disposal or use of existing equipment, individual sections of ventilation and air conditioning systems.

9.3 Test results are presented in the form of a technical report in accordance with section 17. The structure of the technical report is given in Appendix D.

10 Requirements for measurement techniques (methods)

All measurements should be performed in accordance with approved measurement procedures, as well as in accordance with the requirements of this standard.

The measuring instruments used must have certificates of approval of the type of measuring instruments and documents on their verification (calibration).

Note - Methods of direct measurements are set out in the technical documentation for measuring instruments. and their certification is not required.

10.1 Temperature measurement of gases (air) and liquids

10.1.1 Measurement of the temperature of gases (air) and liquids from minus 40 ° C to plus 60 ° C. water from 0 to 100 * C is carried out with thermometers that comply with GOST 28498 with a division value of no more than 0.5 ° C or other measuring instruments with accuracy measurements of the same class.

GOST 34060-2017

When taking measurements to compile heat and moisture balances, measurements should be made with thermometers with a division value of no more than 0.2 *C.

At temperatures above 60 *C, measurements are performed with thermometers with a division value of 1 *C.

The air temperature when testing air distribution devices is measured with thermometers with a division value of no more than 0.2 *C.

10.1.2 To measure the air temperature in the working area of ​​the room, thermometers are installed at a height of 1.5 m from the floor, at a distance of at least 0.1 m from external fences and equipment emitting heat or cold, outside the area of ​​exposure to sunlight.

10.1.3 The air temperature in air ducts should be measured with thermometers inserted into the air duct through special holes or hatches.

Note - Special holes and hatches are sealed to prevent air from flowing and affecting the measurement results.

10.1.4 The temperature of the moving medium (air) should be measured on straight sections of the air duct at an air speed of up to 20 m/s using means of an accuracy class of at least 0.5.

10.1.5 It is recommended to measure the surface temperature (not thermally insulated) of devices and air ducts with pyrometers that comply with GOST 28243 with an accuracy class of at least 1.0.

10.2 Relative humidity measurement

10.2.1 Relative air humidity should be measured with hygrometers or psychrometers of various designs with a measurement range from 0 to 100%. with an error of ±2%.

10.3 Pressure measurement of gases (air) and liquids

10.3.1 To measure pressure or pressure difference, it is allowed to use pressure gauges of various designs that comply with GOST 2405 or GOST 15807.

10.3.2 Pressure measurements in air ducts should be carried out according to the GOST 12.3.018 method.

10.3.3 Total R l, Pa. static Р сг, Pa. and dynamic R d. Pa. pressure in the selected section of the air duct should be measured using a combined receiver (see GOST 12.3.018) with a differential measurement range from 0.1 to 40 Pa and with an error of ±(0.1 to 0.5) Pa.

The measurements are checked using the formula

The measurement is considered reliable if equality (6) is satisfied.

10.3.4 The pressure gauge should be connected to pressure receivers using sealed pneumatic lines.

Note - For the installation of sealed pneumatic routes, it is recommended to use rubber, polyvinyl chloride or silicone hoses.

10.3.5 To measure pressure and air velocity in air ducts (channels), straight sections should be used with measuring sections located at distances of at least six hydraulic diameters (diameter of a round air duct) from the place of flow disturbance (outlet, gate, diaphragm, etc.). ) and/or at least two hydraulic diameters before it.

10.3.6 Liquid (water) pressure in pipelines should be measured using pressure gauges according to

10.3.1 accuracy class not lower than 0.5. and the pressure drop is AP. Pa. - using differential pressure gauges in accordance with GOST 18140.

10.4 Determination of travel speed and air flow

10.4.1 Air speed in air ducts, channels, openings or air flows (when testing air distribution devices or when assessing the sanitary and hygienic state of the indoor air) should be measured with mechanical anemometers (GOST 6376) with an air speed measurement range: from 0 to 0.5 m /With. maximum deviation - ±0.05 m/s; over 0.5 m/s. maximum deviation - ±0.1 m/s, or with electric hot-wire anemometers with the same characteristics:

With hot wire probe for measuring velocity in ducts and ducts;

With a vane probe for measuring the speed of air flow from air distribution and air intake devices.

10.4.2 The number and location of points in the measuring section are determined according to GOST 12.3.018.

GOST 34060-2017

10.4.3 8 For each measurement point, the speed should be measured twice, and the difference between the measurement results should be no more than 5%. otherwise, additional measurements must be taken.

10.4.4 Measurements of air flow velocity in open holes should be carried out in the plane of the air outlet (for air distribution devices), and at the entrance to the hole - inside the channel (for air intake devices).

10.4.5 In holes with an area of ​​up to 1 m2, it is necessary to measure air velocity with a slow, uniform movement of the anemometer across the entire cross-section of the hole. Measurements of values ​​to calculate the hole area are performed with a tape measure that complies with GOST 7502.

10.4.6 If the hole size is larger, its cross-section should be divided into measuring sections and measurements should be taken at the center point of the selected section. For subsequent calculations, the arithmetic mean of the measured speeds should be taken as the average speed.

10.4.7 8 cases when in one part of the opening the air movement has one direction, and in the other part of the opening it is in the opposite direction, you should determine the line where the air speed is zero (the neutral line of the opening) and measure the air speed on both sides of the neutral lines indicating the flow vector.

10.4.8 6 holes closed with grilles, measurements of air flow speed should be carried out with an anemometer (GOST 6376) equipped with a special nozzle or nozzle custom made(made of sheet steel, vinyl plastic, etc.). The nozzle must correspond to the geometric cross-section of the grate and have a length that ensures uniform flow velocity profiles behind the grate. When taking measurements, the nozzle must be in close contact with the grid. Measurements of values ​​to calculate the hole area are performed with a tape measure that complies with GOST 7502.

10.4.9 Air flow L. m 3 / h, in open openings should be determined by the formula

L - 3600 V F. (7)

where V is air speed, m/s:

F is the area of ​​open openings of air intake and air distribution devices with a constant direction of air movement, m2.

Air flow L, m 3 / h, in open openings closed with grilles, should be determined by the formula

where V is the measured air speed, m/s;

/ f - live cross-section of the grating, cross-section of the opening minus the area of ​​the grating, m2.

10.5 Determination of fan impeller speed

10.5.1 The rotation speed of the fan impeller should be determined by directly measuring the rotation speed of the fan shaft or electric motor shaft with a tachometer (when installing the impeller on the electric motor shaft).

10.5.2 To measure shaft rotation speed, it is necessary to use tachometers of accuracy class 0.5 or 1.0 according to GOST 21339.

10.6 Determination of harmful substances in the air

10.6.2 Chemical analysis of air samples should be performed using methods in accordance with the requirements of technical production conditions and in accordance with GOST 12.1.007.

10.6.3 The duration of measurements of the concentration (sampling) of harmful substances in the air must be observed during the examination:

Air of industrial premises and local suction for the content of substances with a highly targeted mechanism of action - at least 5 minutes. for dust content - no more than 30 minutes. in other cases - no more than 15 minutes.

Application - Substances with acute mechanisms of action include: nitrogen oxides, fluoride, hydrogen chloride and hydrogen cyanide, ozone, hydrogen sulfide, carbon monoxide, formaldehyde, chlorine, etc.;

Cleaning devices and supply systems - unlimited;

GOST 34060-2017

Ventilation emissions - from 20 to 30 minutes to obtain the average concentration of the substance.

10.6.4 Substances in a mixed state of aggregation should be collected using devices of approved types that allow the simultaneous capture of vapors and aerosols.

The error in measuring the integral volume of air passed through the absorption (filtering, trapping) device should not exceed 10%. The degree of absorption of harmful substances must be at least 95%.

10.6.5 Determination of the content of substances in the flow of a gaseous medium should be carried out on a straight section of the air duct at a distance of six hydraulic diameters behind the place of flow disturbance and at least three hydraulic diameters before the place of flow disturbance.

10.6.6 Isokinetic sampling of substances in the air flow is mandatory when determining the content of aerosols with a particle size of more than 5 microns (abrasive, coal, cement, metallurgical, wood, flour, aggregated dust, talc, sand, limestone, ash, etc.).

Sampling without observing the principle of kineticity is allowed:

For aerosols with a particle size of less than 5 microns (atmospheric dust, aerosol of condensate or chemical production, alkali, oil, tar and other mists, sublimates, painting aerosol, smoke, soot, etc.);

For harmful substances in gas and vapor states:

For substances in a mixed state of aggregation.

10.6.7 When choosing a place to measure the content of substances in the air flow of aeration openings (aeration lanterns, shafts with deflectors, etc.). as well as roof-type fans, the following requirements should be followed.

Select the measuring section before entering the air removal devices;

Sampling for measuring concentrations should be carried out in the center of the section, and in the case of aeration lanterns - on the longitudinal axis of the lantern;

Sampling for measurement on the longitudinal axis of the lantern should be carried out at points, the number of which depends on the length of the aeration opening: up to 10 m - 1 point, up to 20 m - 2 points, up to 30 m - 3 points, up to 60 m - 4 points, up to 100 m - 5 points, up to 250 m - 7 points, above 250 m - 10 points:

When monitoring air at the outlet of an aeration lantern, the number of sampling points should be increased in proportion to the number of aeration openings.

10.7 Vibration measurement

10.7.1 Vibration parameters should be measured after setting up the ventilation unit and aerodynamic testing of the air duct network. Before taking measurements, it is necessary to check the elasticity of the fan insert with air ducts and electrical wiring.

10.7.2 To measure vibration of ventilation equipment, you should use a measuring system based on vibration measuring instruments (vibrometers according to GOST 12.1.012) or noise meters (vibration measuring module of the 1st or 2nd class according to GOST 17187. bandpass filters according to GOST 17168) . as well as auxiliary instruments (level recorders, magnetographs, etc.).

10.7.3 Measurements of fan vibration characteristics should be performed according to the GOST ISO 8041 method. GOST 12.1.012. GOST 16519 and GOST 16844.

10.7.4 For fans with variable speed, measurements should be performed at the maximum (design) speed.

10.7.5 Vibration measurements of ventilation equipment should be carried out in vertical and horizontal directions. The time of one measurement must be at least 10 s.

10.7.6 Depending on the rotation speed, the logarithmic level of vibration acceleration or the logarithmic level of vibration speed should be used as measured values.

10.7.7 Before starting and after completing measurements, the measuring system should be calibrated.

10.7.8 The measuring equipment used and the calibration device used must have valid certificates of metrological state verification.

10.7.9 When measuring vibration, if it is necessary to install a measuring system sensor, it is allowed to use an intermediate metal plate of a round or rectangular shape, 4-5 mm thick. diameter (or side of the rectangle) - (200 ± 50) mm.

Note - The use of intermediate elements with other dimensions is allowed if they do not introduce additional errors in the measurements.

GOST 34060-2017

10.7.10 When measuring the parameters of periodic vibration, the counting is performed based on the average value of the measuring system device according to 10.7.2.

The measurement time should be at geometric mean frequencies in octave bands:

2-4 Hz - at least 20 s;

8-16 Hz - at least 2 s:

31.5-63 Hz - at least 1 s.

10.7.11 The measurement results must be documented in a test report. A table with processed measurement results, indicating locations and measurement points is attached to the test report.

10.8 Measuring the noise level of ventilation systems

10.8.1 Sound levels should be measured with class 1 or 2 sound level meters in accordance with GOST 17187.

10.8.2 Octave sound pressure levels are measured with sound level meters in accordance with GOST 17187 with octave filters connected to them in accordance with GOST 17168 or combined measuring systems 1st or 2nd accuracy class.

10.8.3 Measurements are performed after adjusting all ventilation systems to their specified operating mode. If ventilation systems operate in alternating mode, then noise measurements are performed at their maximum operating mode.

10.8.4 When measuring the noise level from ventilation and air conditioning systems, the noise of other noise sources (background noise) is assessed, the value of which is determined by measuring the noise level when the operating equipment is turned off or on. If the difference between the measured noise level from ventilation and air conditioning systems and the background noise level does not exceed 10 decibels (dBA). a correction must be made to the measurement results (see Table 1).

Table 1

10.8.5 When measuring the noise level in a room, the following requirements should be taken into account:

When measuring noise levels in a room, it is recommended that only the personnel performing the measurements be present:

In the case of measuring the noise level in a room in the complete absence of furniture from the sound level (sound pressure) value obtained during measurement. dB (dBA). subtract the correction 2 dB (dBA);

Noise measurements in residential and public buildings are carried out no closer than 1 m from the walls, no closer than 1.5 m from the windows of the premises, at a height of 1.2 to 1.5 m from the floor level.

Note - The duration of measurement at each point is determined by the nature of the noise. The process of measuring the level of intermittent noise continues until lor. until the equivalent noise level changes by more than 0.5 dBA within 30 s. When measuring the constant noise level, the reading recording time is at least 15 s:

Regardless of the location of the noise sources (inside or outside the building), when taking measurements indoors, the windows and doors of the premises must be closed.

Note - If there is no mechanical ventilation in the room, ventilation devices providing air exchange must be open, while the windows, transoms and the devices themselves are opened to a width determined by the design, and window sashes - to a width of 15 cm.

10.8.6 When measuring noise levels from ventilation systems in external areas, the following requirements should be taken into account:

Selecting a measurement zone in areas immediately adjacent to residential buildings, hospital buildings, children's preschool institutions and schools, perform in at least three places located at a distance of 2 m from the building envelope at a height of 1.2 to 1.5 m from the ground:

GOST 34060-2017

Points for measurement are selected on the border of those areas of the territory that are closest to ventilation units, places of air intake and exhaust, and are located no closer than 2 m from the walls of buildings.

When measuring the noise level in an external area from a source located inside the building. having ventilation openings, the ventilation openings must be open.

10.8.7 Measurement results and calculations should be presented in the form given in GOST 23337.

10.9 Measuring microclimate parameters in residential and public buildings

10.9.1 Measurement of microclimate parameters in rooms is carried out using thermal anemometers and hygrometers. corresponding to GOST 28498. with a division value of no more than 0.1 *C or other measuring instruments with measurement accuracy of the same class.

10.9.2 The required microclimate parameters and measurement conditions must comply with GOST 30494 (4.2. 4.3).

11 Adjustment of individual devices of ventilation and air conditioning systems

11.1 Setting up a fan without ducts

11.1.1 The air flow of an axial fan operating without air ducts is determined by calculation based on the air suction speed in the collectors or. depending on the location of the fan, according to the speed of air exit from the side of the shell.

11.1.2 The air flow of roof fans is determined by calculation based on the air speed instrumentally measured in the annular slot of the fan.

11.1.3 The total pressure of the fan is determined by adding the actual total pressures before and after the fan.

11.1.4 The rotation speed of the impeller should be determined according to 10.5.

11.1.5 The fan power should be determined by measuring the power consumption of the electric motor.

11.1.6 Measurement data must correspond to the values ​​specified in the RD and technical documentation of the fan.

11.1.7 The adjustment results are documented in the form of a protocol in accordance with section 17.

11.2 Setting up the fan with connected air ducts

11.2.1 Adjustment of the fan with connected air ducts is carried out to check the compliance of the actual mode of its operation (flow rate, total pressure, power and rotation speed of the fan impeller) with the data specified in the working documentation and the technical characteristics of the manufacturer.

11.2.2 The fan air flow should be determined by measuring the flow according to GOST 12.3.018 before and after the fan. If the air flow rates before and after the fan are not the same, then the flow rate should be determined using the arithmetic average values ​​of the flow rates.

11.2.3 The total pressure of the fan is determined by adding the actual total pressures before and after the fan.

11.2.4 The rotation speed of the impeller should be determined according to 11.5.

11.2.5 The fan power should be determined by measuring the power consumption of the electric motor. If there is a belt drive, the fan power should be determined by calculation taking into account the transmission efficiency.

11.2.6 If the points determining the actual air flow and the total pressure of the fan coincide with the value specified in the technical documentation of the manufacturer, the fan is considered to comply with the technical documentation. The permissible deviation of the total pressure and air flow from the value specified in the technical documentation is 5%.

11.2.7 The adjustment results are documented in the form of a protocol in accordance with section 17.

GOST 34060-2017

11.3 Adjustment of air ducts of ventilation and air conditioning systems

11.3.1 Aerodynamic tests during the adjustment of air ducts of ventilation and air conditioning systems are performed using measurement methods and processing of results in accordance with GOST 12.3.018. Testing of air ducts is carried out simultaneously with testing of the fan operating in conjunction with these air ducts.

11.3.2 When testing air ducts of ventilation and air conditioning systems, it is necessary to measure the actual air flow:

At the bases of all branches of air ducts having two or more air intake or air distribution devices:

In all air intake and air distribution devices;

Before and after dust collection devices, humidifying chambers, air heaters, air coolers and heat exchangers.

11.3.3 Regulation of the air flow moving through the air ducts is carried out using control valves, diaphragms or other devices installed during adjustment.

11.3.4 Regulation of air flow in air ducts should be carried out by gradually approaching a predetermined ratio of actual and required air flow or by successively equalizing the ratio of actual air flow to the required one.

During regulation, preliminary (approximate) compliance with the given ratio of air flow rates along the branches of the air ducts is achieved, and then approximate regulation is performed at the individual openings of each branch. Check and adjust the air distribution along the branches and again through the holes.

The adjustment process continues in this sequence until the values ​​of the flow rates required by the PD are obtained. Upon completion of the process, control measurements of air flow are performed.

11.3.5 The amount of suction or leakage in individual sections and along the air duct network should be determined as the difference between the actual flow at the general control measurement points and the total actual flow at branches and end devices.

11.3.6 If there are devices on the air ducts for measuring and/or adjusting the specified air flow (measuring diaphragms, manifolds, integrating tubes, etc.), they should be adjusted and checked for compliance of the air flow values ​​with the parameters specified in the PD.

11.3.7 The adjustment results are documented in the form of a protocol in accordance with Section 17.

11.4 Setting up an air heater with water coolant

11.4.1 Adjustment of an air heater with water coolant provides for ensuring the required heat transfer of the air heater over the entire range of changes in thermal loads, its trouble-free operation in automatic adjustment mode at a return coolant temperature not higher than the values ​​​​according to the heating network schedule.

11.4.2 The test includes:

Measuring air and coolant temperatures before and after the air heater (at least two cycles, cycle duration - at least 15 minutes).

11.4.3 Air flow and resistance of the air heater are determined by aerodynamic tests in accordance with GOST 12.3.018.

11.4.4 Mass flow of air passing through the air heater. G. kg/s, should be determined by the formula

where L is air flow. m 3 / h;

p is the air density corresponding to its temperature. kg/m e.

Actual heat output of the air heater O, kW. during testing should be determined by the formula

Q*GC(T*-T 2). (10)

where G is the mass air flow, kg/s;

C is the heat capacity of air. kJ/(kg - ’С);

G,. 7*2 - coolant temperature before and after the air heater, respectively. *WITH.

GOST 34060-2017

11.4.5 Calculated heat transfer of the air heater О r. kW. at the design temperature of the outside air should be determined by the formula

where O is the heat transfer of the air heater during testing. kW;

Gf. ? nr - respectively, the actual temperature of the coolant and outside air under design conditions. *WITH;

T 2. t„ - respectively, the temperature of the coolant and outside air under actual measurement conditions, ®С.

The coolant flow is regulated using a balancing valve.

11.4.6 The adjustment results are documented in the form of a protocol in accordance with Section 17.

11.5 Setting up an air heater with steam coolant

11.5.1 Setting up an air heater with steam coolant includes:

Determination of the mass flow of air passing through the air heater;

Measuring air and coolant temperatures before and after the air heater (at least two cycles, cycle duration - at least 20 minutes).

11.5.2 The air heater resistance is defined as the difference in total pressures before and after the air heater.

11.5.3 Steam pressure is measured with a pressure gauge on the steam line. The steam temperature is determined depending on its pressure according to Table 2.

table 2

11.5.4 For air heaters operating without condensate subcooling and at constant air flow in the installation, heat transfer for design conditions Q p . kW. should be determined by the formula

< 12)

where Q is the heat transfer of the air heater. kW;

G pr>/i - calculated values ​​of the temperature of the coolant and outside air. *WITH;

Gf. ; nr - actual temperatures of the coolant and outside air. *WITH.

11.5.5 For air heaters operating without condensate subcooling and with variable air flow in the installation, heat transfer for design conditions Q p . kW. should be determined by the formula

where Q is the heat transfer of the installation. kW;

6. G p - air flow rates obtained during testing of the installation and under design conditions, kg/s;

n is the exponent in the heat transfer coefficient formula, taken according to the heat exchanger catalog;

G pr. (and - calculated values ​​of the temperature of the coolant and outside air. ®С;

Гп.гнр - actual values ​​of the temperature of the coolant and outside air. *WITH.

11.5.6 The results of the adjustment are documented in the form of a protocol in accordance with section 17.

11.6 Setting up the surface air cooler

11.6.1 The surface air cooler is adjusted to ensure the required cooling output of the air cooler in the design operating mode.

GOST 34060-2017

11.6.2 Setup includes:

Determination of the mass flow of air passing through the air cooler;

Determination of aerodynamic drag;

Measuring air temperature and humidity, as well as coolant temperature before and after the air cooler (at least two cycles, cycle duration - at least 30 minutes).

11.6.3 Mass air flow and air cooler resistance should be determined by aerodynamic tests in accordance with GOST 12.3.018.

11.6.4 Temperature measurements are performed in maximum load mode.

11.6.5 Based on the measurement results, construct a graph of the actual air treatment process on the J - d diagram in accordance with Appendix 8.

11.6.6 Air cooler cooling output Q. kW. by air should be determined by the formula

Q = G(J 2 -JJ, (14)

where 6 is the mass air flow through the air cooler, kg/s;

J 2 - enthalpy of air before and after the air cooler. kJ/kg.

11.6.7 Calculated cooling output of the air cooler О r. kW. in design conditions should be determined by the formula

Q p = G p C(J 2 -J,J. (15)

where G is the mass air flow through the air cooler, kg/s;

C is the heat capacity of air. kJ/(kg ®С);

J2. J, is the enthalpy of air before and after the air cooler under design conditions. kJ/kg.

11.6.8 The results of the adjustment are documented in the form of a protocol in accordance with section 17.

I. 7 Setting up air humidification equipment

II. 7.1 Adjustment of irrigation chambers, steam, ultrasonic or other types of air humidifiers should be carried out in accordance with the manufacturer’s documentation in order to ensure the parameters given in the working documentation.

11.7.2 The procedure for setting up irrigation chambers is given in 11.7.3-11.7.14.

11.7.3 The irrigation chambers are adjusted to ensure the required parameters of the treated air in the design mode.

11.7.4 Adjustment is carried out in steady state. The number of cycles is at least two. Cycle duration is at least 20 minutes.

Note - The steady-state mode is characterized by the stability of air and water temperatures before and after the irrigation chamber during the measurement cycle and at points that ensure the reliability of the determined value.

11.7.5 Adjustment of irrigation chambers is carried out in the following sequence:

Checking the efficiency of separators according to 11.7.6;

Determination of the aerodynamic characteristics of the irrigation chamber according to 11.7.7:

Determination of the thermal characteristics of the irrigation chamber according to 11.7.8-11.7.12.

11.7.6 The effectiveness of separators is checked by visually observing the presence of water drops in the intermediate section adjacent to the irrigation chamber.

11.7.7 Air resistance should be determined as the difference in total pressures before and after the irrigation chamber.

11.7.8 For thermal testing of an irrigation chamber operating in adiabatic mode, measurements of water pressure in front of the nozzles, temperature and air humidity before and after the irrigation chamber are sequentially performed.

11.7.9 Thermal testing of an irrigation chamber operating in polytropical mode is carried out based on measurements:

Water pressure in front of the nozzles;

Air temperature and humidity before and after the irrigation chamber;

Temperature of water supplied to the nozzles. / ext.*C;

Temperature of water in the pan;

Temperature of the coolant before mixing it with water in the tray of the irrigation chamber.

GOST 34060-2017

11.7.10 Cooling output of the irrigation chamber Q, kW. should be determined using the formulas:

By air

Q,=G(J,~J 2), (16)

where G is the mass air flow through the irrigation chamber. kg/s;

J2. - enthalpy of air before and after the irrigation chamber. kJ/kg;

where W is the water flow in the irrigation chamber, kg/h;

c w - heat capacity of water, equal to 4.19 kJ/(kg * C);

/ VC. g vi - final and initial water temperature. *WITH.

11.7.11 The discrepancy between the obtained values ​​of O and 0 2 should not exceed 20%.

11.7.12 If the discrepancy between the values ​​of O and Q 2 exceeds 20%, then recommendations are made for changing the operating mode of the irrigation chamber.

11.7.13 When setting up an irrigation chamber, the main processes are determined by constructing an air treatment schedule on the J - d diagram.

11.7.14 Recalculation of irrigation chambers under design conditions should be determined using the formula

Q p = G p C(J 2 -J y), (18)

where G p is the mass air flow through the irrigation chamber, kg/s;

C is the heat capacity of air. kJ/(kg ■ *С);

J2. - enthalpy of air before and after the irrigation chamber under design conditions. kJ/kg.

11.7.15 The results of the adjustment are documented in the form of a protocol in accordance with section 17.

11.8 Setting up local suction

11.8.1 Local suction systems, based on their design and the nature of their localization of harmful substances, are divided into three groups:

Group 1 - hermetic shelters:

Group 2 - semi-hermetic shelters, cabinets, display cases, etc.;

Group 3 - open suctions, panels, umbrellas, funnels, etc.

11.8.2 When setting up suction units of group 1, it is necessary to determine the minimum amount of sucked air at which the content of harmful substances, as well as heat and moisture emissions at the suction stations will not be increased due to sources equipped with these suction units. At the same time, the presence of vacuum in the shelter or technological apparatus is determined.

11.8.3 When setting up suction units of group 2, it is necessary to determine the minimum amount of sucked air at which the content of harmful substances, as well as heat and moisture emissions at workplaces served by suction units, will not be increased due to sources equipped with these suction units. At this air flow rate, the average air speed in the working opening (hole) of the suction is measured. If it is impossible to measure the average speed V m, m/h. in the working opening (hole) should be calculated using the formula

< 19 >

where L min is the minimum air flow. m 3 / h;

F - area of ​​open openings (holes) m2.

11.8.4 When setting up suction units of group 3, it is necessary to determine the optimal flow rate of the suction air, at which the breakthrough of harmful substances is allowed, but in such an amount that is diluted to the limits permitted by sanitary standards in the air flowing to the suction, compensating for the removed air through the local suction.

11.8.5 If the process equipment has local suction units of different sizes, only one suction unit from each group of suction units of the same type and the same size is tested.

11.8.6 The adjustment results are documented in the form of a protocol in accordance with Section 17.

GOST 34060-2017

11.9 Setting up the shower device

11.9.1 The auditing device is adjusted to ensure the required sanitary and hygienic parameters of the air environment at workplaces in accordance with GOST 12.1.005.

11.9.2 When testing a shower device, measurements and adjustments are made:

Air flow of air shower;

Meteorological conditions at the ventilated workplace (temperature and air speed).

11.9.3 The temperature of the air flow of the shower device is regulated by changing the air temperature of the supply unit. The flow rate is controlled by a network of air ducts (vanes, valves, diaphragms, etc.).

11.9.4 The adjustment results are documented in the form of a protocol in accordance with section 17.

11.10 Adjusting air distribution devices

11.10.1 Adjustment of air distribution devices (air distributors) of ventilation and air conditioning systems includes.

Checking the air distributor, including the angle of installation of the exhaust pipes, the height of their suspension, the absence of shielding of the live section by obstacles, the presence of flow regulators, blades at the grilles, diffusers and disks at the lampshades, closing devices or flow turbulators, manual and mechanical drives and others, in accordance With technical requirements device manufacturer:

Checking the presence and serviceability of throttling devices (diaphragms) and air flow regulators (gates, valves) on the branches in front of the air distributors, as well as installing missing devices.

11.10.2 After checking the compliance of the position and condition of the air distributors, the distribution of air flow rates among the air distribution devices is adjusted.

11.10.3 Adjustment of air distributors with a variable amount of supplied air is carried out for the modes of maximum and minimum flow rates.

11.10.4 Measure and adjust the speed of air movement, temperature, air humidity and the content of harmful substances in the area of ​​the working area of ​​the room (test area) and in the control plane at the levels of the breathing zone of workers (1.8 m - for standing work and 1.2 m - for sitting work, and if necessary at a height of 0.3 m). Zones of the room with air speed below 0.02 m/s (“stagnation zone”) and zones with air speed above the standardized value are determined. If necessary, check the compliance of the actual parameters for temperature, humidity and air mobility with the data of calculation and modeling of air distribution devices.

11.10.5 Adjustment of air distributors is carried out at a constant mode and a given air temperature in the working area (permissible deviation - from 1 to 2 °C). At fixed costs of incoming and outgoing air, temperature and humidity deviations within 5% are allowed.

11.10.6 Based on the results of measurements of air parameters on the floor plan, areas of discomfort within the working area are identified and measures are developed to ensure the required microclimate conditions.

11.11 Setting up the dust collection device

11.11.1 The dust collection device is adjusted to determine the degree of air purification from dust, the coefficient of local resistance, as well as the concentration of dust removed into the atmosphere.

11.11.2 Before testing the dust collecting device, aerodynamic tests of the air duct network are performed.

11.11.3 When testing each dust collection device, you should:

Measure total, dynamic and static air pressure before and after the device:

Measure the speed of air entering the dust collection device:

Measure the air flow before and after the device and the resistance of the device to passing air.

Take air samples to determine dust content before and after the device:

Measure the degree of air purification by the device.

11.11.4 The effectiveness of the dust retention device is determined by comparing the actual dust content in the exhaust air with the standards for ventilation emissions.

GOST 34060-2017

11.11.5 If dust collection devices operate ineffectively, measures are developed to improve the efficiency of its operation.

11.11.6 The results of the adjustment are documented in the form of a protocol in accordance with section 17.

11.12 Setting up an autonomous air conditioner

11.12.1 Setting up an autonomous air conditioner consists of ensuring the required air flow, heat and cold performance and maintaining the required air parameters in the room.

11.12.2 When setting up, perform:

Regulation of fan air flow when operating in a duct network:

Adjustment of the air duct network in order to achieve the required air flow rates based on actual loads;

Adjusting the heat transfer of air heaters at the calculated parameters of air and coolant:

Adjusting the operating mode of the built-in refrigeration machine and determining its cooling capacity.

NOTE The test is carried out under steady state thermal conditions. The test time must be at least 1 hour. Recording of instrument readings is carried out at intervals of 10 to 15 minutes. but not earlier than 40 minutes after turning on the refrigeration machine:

Regulation of the required ratio of external and recirculated air flow rates (using air valves).

11.12.3 Adjustment should be carried out at the calculated parameters of the outside air, in the presence of maximum excess heat and moisture in the air-conditioned room.

11.12.4 The adjustment results are documented in the form of a protocol in accordance with section 17.

11.13 Setting up a local non-autonomous air conditioner

11.13.1 Setting up local non-autonomous air conditioners is carried out in the following sequence:

Aerodynamic tests with determination of air flow and air conditioner pressure;

Adjusting the air conditioner to the calculated ratio of outside and recirculated air flow using the outside and recirculation air dampers;

Testing of air heaters of the first and second heating;

Testing and adjusting the irrigation chamber.

11.13.2 Regulating the flow of external and recirculated air is carried out by adjusting the air valves or installing throttling devices.

11.13.3 The results of the adjustment are documented in the form of a protocol in accordance with section 17.

11.14 Setting up an ejection air conditioner

11.14.1 Before starting the adjustment of the ejection air conditioner-closer (ECD), the central air conditioner (CC) system is adjusted so that the design pressure and temperature of the supply air at the outlet of the nozzles of the closer correspond to the parameters specified in the PD.

11.14.2 ECD tests are performed in the following sequence:

Measuring primary air flow and adjusting in accordance with PD:

Performing testing of EKD heat exchangers in heat and cooling modes.

11.14.3 Temperature and relative air humidity measurements are performed at the inlet to the heat exchanger and at the outlet from the ECD. Based on the obtained values, using the J - d diagram, the heat content of recirculation, supply and primary air is determined.

11.14.4 Tests to determine the heat and cold transfer of heat exchangers are carried out at a steady state of operation of the ECD and the calculated parameters of the coolant and air in the room.

11.14.5 The results of the adjustment are documented in the form of a protocol in accordance with section 17.

11.15 Adjustment of air-thermal curtains

11.15.1 Adjustment of air-thermal curtains is carried out in order to ensure the effectiveness of the curtain. to maintain normal air parameters in the room, in the area of ​​construction openings.

11.15.2 Adjustment of air-thermal curtains should be carried out after adjustment of room ventilation and aeration systems at negative outdoor temperatures.

GOST 34060-2017

11.15.3 Adjustment includes:

Aerodynamic tests and adjustment of the air curtain to the required air flow:

Adjusting the operation of air heaters according to the data specified in the working documentation;

Determining the effectiveness of the curtain.

11.15.4 When checking the effectiveness of the curtain, determine:

Temperature and air speed at the permanent workplaces closest to the openings, which are measured at a height of 0.5 and 1.5 m from the floor level;

The temperature of the air flow near the gate, coming from the side of the opening;

The temperature of the air supplied by the curtain;

Outside air temperature;

Wind speed and direction (at a distance of 4-5 m from the gate).

11.15.5 The air-thermal curtain must ensure the movement speed and air temperature at permanent workplaces in the room near the gate in accordance with the requirements of GOST 12.1.005.

11.15.6 The results of the adjustment are documented in the form of a protocol in accordance with section 17.

11.16 Setting up natural ventilation and aeration devices

11.16.1 Adjustment of natural ventilation and aeration devices includes testing of the exhaust shaft and deflectors.

11.16.2 Tests of the exhaust shaft are carried out in cold or transitional periods of the year at an outside air temperature of no higher than 5 * C and a difference between external and internal temperatures of at least 15 * C. At the same time, measurements are taken of the flow rate of exhaust air in the cross section of the grille and in the head of the shaft.

11.16.3 Tests of deflectors are carried out at temperature differences between external and internal air of at least 15 * C and wind speed of at least 1 m/s. The air speed is determined in the grille or exhaust device and converted into volumes of air removed.

11.16.4 If there are mechanical ventilation systems in the building, measurements are performed when the said systems are turned on in operating mode.

11.16.5 The adjustment results are documented in accordance with Section 17.

12 Determining the amount of emissions into the room

harmful substances

12.1 Determination of the actual amount of harmful substances released into the room to determine the required air exchanges should be carried out on the basis of the balance of heat, moisture and gases after testing the ventilation and air conditioning systems in cases where the required sanitary and hygienic conditions are not provided.

12.2 If technological process accompanied by the release of heat, gas, heat and moisture, a balance should be drawn up for heat, gas, heat and moisture.

12.3 The entire set of measurements to compile the balance is performed at least twice (on different days of the week). If the discrepancies in measurements exceed 15%. Then additional tests and measurements are performed.

12.4 The location of sampling points to determine the presence of gas is selected based on local conditions (taking into account the placement of equipment that produces gases, the direction of air movement in the room, the air exchange pattern). The number of samples must be at least five.

12.5 The summary balance of the amount of heat, moisture, and gas released in the room must correspond to the difference in the amount of heat, moisture, and gas leaving and entering the room, regardless of the time of year.

12.6 The data obtained as a result of the completed summary balances should form the basis for calculating air exchanges.

13 Setting up smoke ventilation systems

13.1 When adjusting smoke ventilation systems to comply with the requirements of the RD, perform the following:

Testing and adjustment of supply and exhaust fans in the air duct network;

Regulation of air flow removed through floor smoke exhaust valves:

GOST 34060-2017

Providing overpressure parameters in protected volumes (staircase, elevator shaft, etc.) in the range of 20-150 Pa.

Note - It is allowed in airlocks to ensure an air velocity in the plane of the door of at least 1.3 m/s.

13.2 Adjustment of smoke ventilation systems should be carried out in accordance with 8.2.

13.3 The speed of air movement in door openings, valve openings, etc. is measured with anemometers (GOST 6376). In openings, the free cross-section of which is blocked by protective or decorative elements(grids, meshes, etc.) that do not change the direction of flow, the air velocity is measured in a plane spaced 50 mm from the specified element. Filling openings that change the direction of flow (blinds, sashes, etc.). removed during aerodynamic tests.

13.4 Excess pressure should be measured in relation to the adjacent room (hall, corridor, etc.). in this case, static pressure receivers in these rooms are placed at the same height and located at a distance of at least 0.5 m from the enclosing structures.

13.5 8 above-ground smoke-free evacuation staircases, excess pressure measurements must be performed in two modes:

The staircase doors are closed, measurements are taken on the closed doors of the lower and upper floors;

The doors of the staircase are closed, with the exception of the door on the floor leading from the building to the outside; measurements are taken at the closed door of the adjacent floor located above the floor equipped with an exit from the building to the outside.

Note - The doors of rooms (vestibules, halls, lobbies, corridors) located along the evacuation route from the staircase to the external exit must be open.

13.6 Pressure measurements in elevator shafts connecting above-ground floors should be performed at the door of the upper floor in relation to the main landing floor, in elevator shafts connecting underground floors, at the door of the adjacent underlying floor in relation to the main landing floor.

Note - The elevator must be located on the “main landing floor”, the doors of the cabin and the elevator shaft must be open.

13.7 Measurement of excess pressure in the airlock vestibule should be carried out with the doors closed in relation to the adjacent room.

13.8 When the smoke removal and air supply systems are turned on, check the possibility of opening doors from the floor corridors of all floors on staircase and/or in staircase-elevator halls.

13.9 The adjustment results are documented in the form of a protocol in accordance with section 17.

14 Setting up an air conditioning system with local closers

and heat reclaimers

14.1 Setting up an air conditioning system in which the central air conditioner supplies a minimum volume of outside air, and the microclimate parameters in the rooms are supported by local closers (autonomous and non-autonomous air conditioners, local humidifiers, etc.). performed in the following sequence:

Adjustment of central air conditioning and air ducts. In this case, the external air flow must ensure the sanitary supply norm per person and be sufficient to compensate for local exhaust or technological needs, as well as maintain excess pressure (pressure) in the premises or assimilation of harmful substances:

Setting up exhaust units:

Adjustment of local devices (air conditioners, closers) to the calculated air and coolant flow.

14.2 If the air conditioning system has a device for heat recovery (plate, rotary, heat recovery with intermediate coolant or other types) adjustment

GOST 34060-2017

the recycler should be carried out in accordance with the recommendations of the manufacturer until the performance indicators given in the RD and technical documentation are achieved.

14.3 The adjustment results are indicated in the technical report, in accordance with section 17. in the form. given in appendix c.

15 Setting up an air conditioning system with variable air flow

15.1 The goals of setting up air conditioning systems with variable air flow (quantitative control) are:

Ensuring aerodynamic stability of the system.

Note - When regulating air flow in individual areas (zones), it is necessary to ensure the stability of air flow in unregulated branches of the system serving rooms with the design heat load:

Increasing the reliability and efficiency of fans and heat and mass transfer devices at maximum and minimum loads;

Creating optimal air conditions in the working or service area of ​​the premises with maximum and minimum air flow.

15.2 When setting up air conditioning systems with variable air flow [air conditioning systems (ACS) with quantitative control), perform:

Calculation of maximum air flow;

Calculation of the heat load of a room (zone) by summing the components of the heat load of a given room for one calculated hour (at the moment of the maximum heat load).

Note - For SCR with quantitative regulation, the calculation is performed, as a rule, in the warm period of the year:

For a room with simultaneous orientation to all cardinal directions - calculation of the total heat load on the HVAC during one calculated hour, while the supply of the supply fan is determined taking into account the different loads at different times.

15.3 Analysis of fan operation in order to determine the characteristic point of fan operation in the air duct network, taking into account the passport characteristics at maximum and minimum rotation speeds, is carried out in the following order:

Determine the maximum operating pressure for variable air distributors or closers in SCR:

Construct the characteristics of the fan and the air duct network in the minimum and maximum flow modes.

15.4 Perform aerodynamic regulation of the air duct network, adjusting the end devices of the system (closers, zonal heat exchangers, air distributors, etc.) for the design air flow.

15.5 When testing and adjusting zonal air valves, their static characteristic should be ensured, which should have a linear dependence of air flow on the angle of rotation of the valves. To ensure a linear relationship, the pressure drop with fully open valves with non-parallel blades should be 3-6% of the static pressure of the duct network (at the point where it is automatically maintained), and for valves with parallel blades - 10-3%. During testing, the air speed in the live section of a fully open valve should be measured, which should be: at least 5 m/s - when automatically maintaining pressure in the collector network up to 250 Pa and at least 10 m/s - at pressure up to 1000 Pa.

15.6 Determine the pressure loss in air distributors or closers at maximum and minimum air flow rates based on aerodynamic characteristics.

15.7 All closers and their corresponding air distributors should be adjusted to the maximum design air flow rates, adjust the closers to the minimum flow rate, adjust the guide vane or fan impeller speed controller until the calculated minimum values ​​of static pressure and flow are obtained, and test the closers when setting them to the minimum consumption.

15.8 All air intake devices together with the recirculation and exhaust fan should be adjusted to the calculated flow rates; the supply fan should operate at maximum flow.

GOST 34060-2017

15.9 The static pressure regulator sensor must be installed. The sensor must be located in the supply main air duct at a sufficient distance from the supply fan, where pressure losses account for 50-70% of the total losses in the network.

15.10 The required flow of outside air should be ensured with a minimum supply from the supply fan. The minimum amount of outside air is determined by air flow, taking into account:

Required air flow according to flow rates per person;

Required air flow to compensate for air removed by local exhaust ventilation;

Required air flow to maintain excess pressure in the room;

Necessary air flow to assimilate harmful substances.

15.11 Adjustment of the impeller speed controller or fan guide vane to ensure the calculated values ​​of flow rate and static pressure is performed in the following sequence:

Randomly check the static pressure of at least one third of the end devices throughout the air conditioning system.

Note - If there is a large spread of static pressure values ​​or if the values ​​do not reach the design minimum, it is necessary to check and adjust all conical devices (closers, zone heat exchangers, air distributors, etc.);

Determine the total air flow in the main supply air duct:

They adjust air filters, irrigation chambers and surface air coolers and air heaters of the central air conditioner.

15.12, based on the test results, the first heating air heaters are calculated for “freezing”. Return water temperature for conditions of maximum and minimum air flow rates at design outside temperature and the outside temperature ranging from 0 to 3 "C should be at least 20 * C, and its speed should be at least 0.2 m/s.

15.13 It is necessary to adjust the air distribution system in air-conditioned rooms for the conditions of maximum and minimum design air exchanges in the rooms, while the distribution of air parameters in the serviced area should be uniform with a decrease in flow rate by 30-60% of the design value.

Note: The greatest efficiency in SCR with quantitative control is ensured by adjusting air distributors in which the outlet cross-sectional area is regulated when the supply air flow rate changes. At the same time, a constant speed of air release and the range of the supply jets are maintained in wide range changes in flow.

When setting up air distributors, cold air is supplied in horizontal jets spreading onto the ceiling.

15.14 When setting up the air distribution system, you should be guided by the following provisions:

The efficiency of air distribution increases with a large number of supply openings. correspondingly lower throughput and installation of a dispersive grille on the air distributor, providing a short jet range;

In the presence of heating system In peripheral rooms, air supply should be carried out. usually in the direction from the outer wall;

If there is a large temperature unevenness or increased air flow rates in the working area under conditions of minimal air exchange, it is necessary to reduce the depth of regulation, and accordingly increase the minimum air flow to a value that ensures standardized conditions in the working area.

15.15 The results of the adjustment are indicated in the technical report, in accordance with Section 17, in the form. given in Appendix B.

16 Setting up an air heating system

16.1 The purpose of setting up an air heating system is to ensure the required parameters of indoor air in the premises over the entire range of changes in external conditions.

GOST 34060-2017

16.2 Adjustment of the fan, heat exchanger, filter and other ventilation devices is carried out in accordance with sections 10 and 11.

16.3 The local air heating unit should be adjusted in the following order:

Determine the actual heat loss of the room:

Measure the recirculation air flow and determine the heat transfer of the air heater:

Measure the temperature and air speed in the working area of ​​the room.

16.4 Adjustment of the heat output of an air heating unit should be achieved by changing the coolant flow rate or fan rotation speed.

16.5 Acoustic measurements, determination of relative humidity, temperature and air velocity in the room are carried out in accordance with section 13.

16.6 If actual conditions deviate from the required ones, perform aerodynamic regulation of the volume of air flow throughout the entire area of ​​the room to volumes that ensure the parameters of internal air in accordance with GOST 12.1.005.

16.7 The results of the adjustment are given in the ventilation system passport (see Appendix A) or in the equipment characteristics of the technical report in the form given in Appendix B.

17 Composition and rules for preparing reporting documentation

17.1 The text of the reporting documentation should be brief and contain the data necessary to analyze the operation of ventilation and air conditioning systems or justify technical solutions to achieve optimal parameters systems operation.

17.2 Graphic design of reporting documentation must comply with GOST 21.602. Deviation from GOST 21.602 is allowed if there are explanations in the content or graphic designation.

17.3 When individually testing ventilation and air conditioning systems, based on the results of the work performed, a passport (at least two copies) is drawn up in accordance with Appendix A.

17.4 After completing the comprehensive adjustment of ventilation and air conditioning systems, a report is drawn up in accordance with Appendix B.

17.5 The results of adjusting ventilation and air conditioning systems for sanitary, hygienic and/or technological conditions of the air environment are presented in the form of a technical report, including text material, tables and drawings. The recommended structure of the technical report is given in Appendix B.

18 Control of work performance

18.1 Monitoring of work performance is carried out in order to determine and ensure compliance of the work performed with the requirements of the PD. RD, current regulatory documents and technical documentation of the manufacturer.

To organize control of work performed in departments, responsible persons must be appointed in the following areas:

For metrology, repair, verification, certification and maintenance of instruments and measuring instruments, which carry out maintenance, preventive maintenance and repair of instruments and measuring instruments with recording the state of the instruments in a journal:

For testing and adjustment, registration of test results, processing of received data and preparation of reporting documentation;

For office work, archive and fund of normative documents that form, update and store the archive of reporting documentation. The storage period for technical documentation is six years.

18.2 To monitor the progress of work during the adjustment of ventilation and air conditioning systems for air flow rates according to the PD and to carry out a comprehensive adjustment of the systems at each stage, the following must be checked:

Results of air duct tightness tests (determining the amount of leaks or air losses, the permissible value of which due to leaks in air ducts and other system elements should not exceed the values ​​​​specified in the RD or the requirements of this standard):

Results of testing fans during their operation in a network of air ducts (determining compliance of operating parameters with the characteristics of the technical documentation of the manufacturer and the parameters of PD, air supply and pressure, rotation speed);

GOST 34060-2017

Indicators of uniform heating (cooling) of heat exchangers and checking the absence of moisture removal through the drop eliminators of the irrigation chambers:

Results of testing and adjustment of systems to achieve PD parameters for air flow in air ducts, local suction, and air exchange in rooms:

Operation of natural ventilation exhaust devices;

18.3 When monitoring the performance of work during the process of adjusting systems for sanitary, hygienic and/or technological requirements, the following must be checked at each stage:

Results of testing and adjustment of equipment when operating in operating mode:

Indicators of heat transfer (cooling transfer) of heat exchangers sufficient for operation under the design conditions of external parameters;

Results of testing and adjustment of systems to achieve the required indicators for air flow in air ducts, local suction, and air exchange in rooms;

Sanitary, hygienic and/or technological parameters of the air environment in the premises in accordance with the requirements of current sanitary and technological standards;

Composition of reporting documentation.

19 Requirements for safe work performance

19.1 During the execution of work it is not allowed:

Remove protective covers and guards;

Check and troubleshoot electrical circuits, electrical equipment and automation devices without removing voltage;

Open hatches, guards, clean and lubricate equipment, touch its moving parts until they come to a complete stop.

19.2 Work on setting up ventilation equipment in closed spaces is carried out by a team of at least two people, with one person in the closed area and the other outside.

19.3 If shocks, suspicious noise, or strong vibration are detected in ventilation and air conditioning systems, testing should be stopped immediately until the reasons are determined.

19.4 It is prohibited to touch the rotating parts of ventilation devices with your hands until they come to a complete stop.

19.5 When inspecting ventilation equipment, if the power supply is turned off, it is necessary to hang up a sign “Do not turn on, people are working.”

GOST 34060-2017

Appendix A

(required)

Ventilation system (air conditioning system) passport form

ventilation systems (air conditioning systems)

Name of system, installation_

Zone. shop. room_

General information:

1 Purpose of the system_

2 Location of system equipment_

A.1 Main technical characteristics of the system equipment

Table A.1.1-Fan

Note -

Table A.1.2 - Electric motor

		Power,	Rotation speed, s - "	Pulley diameter, mm	type of transmission
According to the project
Actually

Note - _

Table A. 1.3 - Air heaters, air coolers, including zone ones

* Performed by an installation (construction) organization with the participation of the developer or technical customer (commissioning organization).

Note -

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Table A. 1.4 - Injection device

Note -

Table A.1.5-Air humidifier

Note - _

A.2 Air flow rates by premises (via network)

Table A.2 - Air flow by room

The deviation of air flow indicators is ±8% from the required values.

Note - A deviation of air flow rates of ±10% from the flow rates provided for by the PD is allowed.

AZ Scheme of the ventilation system (air conditioning system)

Notes

1 The diagram shows the location of the measurement locations.

2 Indicate identified deviations from the PD (RD) and their agreement with the design organization.

Representative of the developer or technical customer

(commissioning organization)_

(signature, initial, last name)

Representative of the person carrying out

preparation of project documentation_

(signature, initials, surname)

Representative of the installation (construction) organization_

(signature, initials, surname)

GOST 34060-2017

Appendix B

(required)

Form of the certificate of acceptance of the ventilation and air conditioning system after comprehensive adjustment

Commission appointed

by order_from "_"_

consisting of:

Chairman - representative of the Customer.

commission members - representatives: operating organization_

(last name, first name, patronymic, position)

general contractor. designer_

commissioning organization_

INSTALLED:

1 General contractor.

(name of organization, surname, position of representative)

(name of company)

presented for complex adjustment.

(name of the customer organization that appointed the working commission)

(name of organization, surname, position of representative)

(name of organization, surname, position of representative)

(name of system/object. brief technical characteristics)

Installed systems.

(name of building, structure)

2 Installation work has been completed.

(names of installation organizations)

3 Working documentation has been developed.

(names of design organizations, working documentation codes)

4 Comprehensive commissioning, including the necessary commissioning work, has been completed

5 Complex adjustment was carried out in accordance with the complex adjustment program approved

6 Defects identified during the adjustment process are given in the appendices

(names of documents)

GOST 34060-2017

COMMISSION DECISION:

The system presented for acceptance, which has passed (has not passed) comprehensive adjustment, shall be considered accepted as of k_»_20_g. (not accepted) after comprehensive adjustment and ready (not ready) for acceptance into operation.

Proposals of the commission on the system not accepted after comprehensive adjustment:

Chairman of the Commission

(signature, surname. I.O.)

Members of the commission:

(signatures, surnames. I.O.)

Structure of a technical report on testing and adjustment of ventilation and air conditioning systems

The technical report “Testing and adjustment of ventilation and air conditioning systems” recommends that:

1 General part (goal and objectives of the tests).

2 Brief description of the building (workshop) and ventilation and air conditioning systems (including the placement of equipment and ventilation and air conditioning systems in the building).

3 Test results of ventilation systems and equipment (including a description of test methods and the sequence of measurements).

4 Sanitary, hygienic and/or technological conditions of the indoor air environment (including testing conditions).

6 Drawings:

Floor plans (workshops) with ventilation systems:

Axonometric diagram of the system's air ducts:

J - d diagram of humid air in a room or air conditioning process.

7 Tables:

Characteristics of ventilation equipment:

Meteorological state of the air:

Local suction test result:

Cyclone test result:

Filter test result:

Scrubber test result:

The result of testing the irrigation chamber.

Test result of the shower device:

Balance of heat, moisture and gas:

Heat and moisture balance:

Gas balance.

Note - If the volume of material entered into the table does not exceed five lines, then the material can be presented without creating a table.

8 Operating instructions based on the results of testing and adjustment of ventilation and air conditioning systems, including energy saving measures.

GOST 34060-2017

Structure of a technical report on the collection of initial data for reconstructed ventilation and air conditioning systems

The technical report “Tests for collecting initial data for reconstructed ventilation and air conditioning systems” recommends reflecting the results of collecting initial data in the following form:

Brief description of the building or workshop, ventilation and air conditioning systems:

Type of technological equipment that releases industrial harmful substances into the indoor air:

Equipment that needs to be equipped with local shelters or suction:

Requirements for devices for cleaning ventilation emissions and protecting the air basin:

Constructions of building fencing, area of ​​openings, glazing, doors and transport gates:

The feasibility of installing heat recovery plants:

Proposals for laying new pipelines and air ducts:

Conclusions about the state of the air environment:

Initial data for the design of ventilation and air conditioning systems.

UDC 697.91:006.354 MKS91.140.30

Keywords: network engineering internal buildings and structures, ventilation and air conditioning, testing, adjustment, adjustment, control of work performance, rules of conduct

Editor A.A. Kabanov Technical editor V.N. Prusakova Corrector E.R. Aroyan Computer layout Yu.V. Popova

Delivered and recruited 01/16/2018. Signed on seal 02/01/2018 Format 60 » 84 Vg. Arial typeface. Uel. treat l. 4.19 Researcher p. 3.79 Circulation 30 he. Zach 264.

Prepared based on electronic version provided by the standard developer

Publishing House "Jurisprudence". 116419, Moscow, st. Ordzhonikidze. eleven

Published and printed by FSUE "STANDARDIFORM". 123001. Moscow. Grenade Lane.. 4.

Commissioning works ventilation and air conditioning systems are a series of technical measures aimed at bringing the current air flow rates of the ventilation system in accordance with the values ​​provided project documentation. Commissioning is a key stage on which depends effective work ventilation and air conditioning systems and guaranteeing their uninterrupted operation. Purpose of commissioning - bringing the operating mode of ventilation devices and systems in accordance with the requirements of the project and regulatory and technical documentation.

Procedure and methodology for carrying out work:

Checking the compliance of the parameters of the installed equipment and elements of ventilation devices adopted in the project, as well as the compliance of the quality of their manufacture and installation with the requirements of TU, ​​SNiP and SP;

Checking compliance with the design data of the volumes of air passing through the air distribution devices of general ventilation and air conditioning installations;

Checking compliance with the passport data of ventilation equipment in terms of performance and pressure;

Checking the uniform heating of heaters. (If there is no coolant during the warm period of the year, the uniform heating of the air heaters is not checked).

* Deviations from the design identified during the inspection that were not agreed upon with the design organization, as well as defects in the manufacture and installation of elements of ventilation devices must be eliminated before the start of instrumental measurements of the characteristics of these elements.

Carrying out tests and, based on their results, planning measures to ensure the operation of systems in design mode. Recommendations (drawings and explanatory note) are sent to the general contractor to carry out the planned activities.

If installed equipment corresponds to the passport data, then during the commissioning process the ventilation unit should be adjusted to the calculated air and pressure output, as well as the air duct network and air distribution devices, the maximum coolant flow rate of the first and second heaters and zonal heaters should be adjusted; the required design capacity of the air cooler or irrigation chamber; characteristics of control devices for air, water and steam performance of the cold source.

Based on the results of startup tests and commissioning, a certificate and passport are drawn up for each installation. Test reports and certificates of ventilation devices are appendices to the certificates of commissioning of ventilation systems.

More detailed information can be found in the section “Commissioning program”.

If you have a need for commissioning work, please contact our company. You will be pleasantly surprised high level organization of work and qualifications of employees of our department.

If we talk about a more or less serious and responsible approach to the creation of ventilation systems at home, then we cannot do without such a stage as the commissioning of ventilation. Because it is at this stage that errors or deviations from existing rules and regulations are identified.

Relations with contractors

If the company that will do the ventilation in your home or building refuses to test the system properly in the future, then you should be wary. Indeed, during such work, installers and designers, in a sense, improve by identifying errors - each next time there are fewer and fewer mistakes.

In addition, “testing” of the system also shows how professionally and harmoniously the relationships between installers, designers and managers are built within the hired organization. After all, after testing, the installers are released from responsibility and if something is wrong, then those who planned the ventilation immediately get involved in the problem.

In a sense, the presence in the contract of a clause on carrying out such work is a signal that you are dealing with a truly serious organization, whose leaders understand the importance of this stage.

Unfortunately, it is not uncommon for commissioning to not be carried out at all and not provided for in the contract. Be sure to pay attention to the presence of this item - its absence most often indicates that the staff of a particular company simply does not have specialists with a clear understanding of the laws of aerodynamics.

Be sure to also clarify with what tools and devices the commissioning will be performed.

A sign of professionalism is the use of, for example, the following tools:

• anemometer and thermometer;
• micromanometer;
• differential type pressure gauge for ventilation ranges;
• barometer and tachometer;
• pneumometric tubes, sound level meter, etc.

That is, to put it simply, ventilation commissioning is not a primitive action like turning on the start button for “works or doesn’t work,” but, in fact, a whole process.

Please note: It is highly advisable that commissioning be carried out by the organization that installs the system and its design.
If you look for another contractor for this stage, then there is a high risk of delaying the start of ventilation.
Very often, due to the fact that there is no normal between two companies, quick contact(and sometimes even mutual understanding), the period for correcting defects, supplying the necessary parts, etc. may be delayed.

Of course, if we are talking about a fairly large one-story private house, for example, then this stage may not be so important. However, when implementing more or less serious projects, full testing is truly necessary.

And besides, then, in case of ineffective ventilation, it will be much more difficult to carry out tests, since communications may be covered with cladding, the room will be occupied by people, etc.

Let's look at the minimum actions that installers should perform with their own hands at this stage.

Commissioning step by step

It is worth noting that, as illustrative examples, we will analyze actions that are usually carried out for fairly large, large-scale systems.

But in principle, the instructions provided below can be taken as a basis for checking less serious ventilation, since at each stage we will explain the main essence of the actions, that is, why it is generally needed and what it affects.

Let's start with the simplest.

Checking the fan operation

Ideally, of course, check fans before they are installed in air ducts - such a preliminary check is usually done on a special stand.

In general, during such work, approximately the following defects and deviations are revealed:

• The functionality of the start buttons and those that regulate the power of air injection or suction;

• The width of the gap between the device wheel and the suction cone. This figure should not be more than 1% of the total wheel diameter. As practice shows, with a larger gap the fan is simply not capable of delivering the declared pressure power.
• Correct wheel direction. This factor affects not only the smoothness of the air flow in a given direction, but also the performance of the device itself. If the wheel is installed and rotates in an uneven position, then there is a high risk of vibration and, accordingly, loosening of fasteners, nuts, etc.

Note!
An incorrectly set position also affects the noise level of the device.
The more accurately the installation is made, the fewer decibels will penetrate the room.

By the way, if we are completely objective, we can note one detail - imported fans are much quieter than domestic products. It’s not for nothing, after all, that the prices of devices vary.

So, if an imported fan in your system starts to hum loudly, then 90% is that these are the consequences of improper installation, and not the “fault” of the device.

Now let's take a look at how to check the operation of installed air ducts without the presence of test instruments.

Checking traction using “folk” methods

These are, in fact, the simplest steps that can be taken to roughly determine the effectiveness of the system made.

First you need to simulate a situation close to reality - that is, create the conditions in which you plan to operate the hood. For example, you can close all the doors that should theoretically be closed - or vice versa, open them.

The air inflow points need to be checked with your hands - just bring them to the hole - if the air pressure is really noticeable, then, in principle, the “inflow” is functioning normally.

As for the hood itself, you need to check the draft not with paper, as many advise, but with smoke. The fact is that paper can be drawn into the channel even due to the difference in pressure in the room and in the air ducts.

But if, for example, a person lights a cigarette and the smoke does not spread throughout the room, but is drawn into the ventilation grill, then this is the first sign that everything was done normally.

But, of course, instrumental control would not hurt for greater confidence.

Let's consider what the essence is here, and what are the instructions for action.

Checking system performance using instruments

It turns out that we need to make a simplified adjustment, after which we can determine the air flow.

This is done approximately according to this scheme:

1. A section of communications without bends is selected. Its length should ideally be at least 6 meters.
2. At the point of nearest resistance, a hole is made for inserting a pneumometric tube. The hole can then be closed in a simple way - with a plug or clamp.

Advice: if such commissioning work on ventilation is carried out at an industrial facility, then sealing such holes may not be necessary at all.
Because their presence actually does not affect the performance of a system with a large diameter of air ducts at all.

1. The pneumometric tube is inserted into the hole and, as it were, moved from wall to wall. In this case, changes in dynamic pressure are observed near each of the walls - if the indicators are approximately the same, then this area is suitable for further tests and measurements.

1. Next, the mobility and air speed are determined - this can be done using an anemometer. If the data obtained coincides with those contained in the design documentation, then in general we can assume that everything was done correctly.

If performance deviates too much from the norm, you need to move on to more complex operations. Typically, the total and dynamic pressure of the flow is measured before and after it is turned on - thus, air flow figures are obtained. If the difference between them is 5% or slightly less, then in general this is very normal.

If the figure is more than 5%, then you should try to find sections of the line that are clogged or have some kind of obstacle inside to the normal passage of air flow. In addition, you need to check the entire line for compliance with the diagram - perhaps somewhere the diameters of the elements do not match or some device is missing.

If everything is clean and normal, then you can simply try to increase the fan speed, if technical conditions and documentation standards allow this.

And let's consider one more stage of testing such a highway.

Leak test

This work is not always performed and is often considered optional and additional. To check or not specific system– depends on its features and your tasks. But in general, this is usually not provided for, and if it is done, then the cost of commissioning work on ventilation increases accordingly.

The easiest way to carry out such a check is discussed in the table below.

Action:	The essence of the action:
1. Close all ventilation grilles.	This is necessary then to create the most suitable “environment” for testing. Agree, with open holes it will be almost impossible to determine loss points.
2. Turn on the fan.	The device begins to pump air into the channels and, in principle, if it is clear that there are significant losses, then the location of a large “hole” is calculated quite quickly. If it is clear that there are deviations, but the point of loss cannot be found, then instead of air they begin to supply smoke into the system - its leakage will definitely be noticeable. Most often, leakage points are poorly connected elements.

Note!
Checking the line for leaks only in words seems like a simple, uncomplicated job.
In fact, this also requires a lot of experience and technical skills - at a minimum, you need to understand the essence and nuances of the actions.
Therefore, if this stage must be completed, then it is better not to take risks, but to entrust everything to professionals.

These are the rules and advice.

This concludes our review - we have become familiar with the general points and principles of the technology, and now we can draw conclusions.

Conclusion

We figured out why ventilation is needed and according to which commissioning is carried out. We considered a simplified method of testing the performance of the system, as well as one where the devices are already used.

We hope that the information provided will help you, and you will be able, if not to do everything yourself, then at least check how correctly the hired team operates.

This program-methodology is intended for personnel carrying out commissioning work (Commissioning).

The program-methodology was developed at the Profkarkasmontazh SU on the basis of regulatory and technical documentation and instructions from equipment manufacturers, taking into account the experience of commissioning and operation of equipment at compressor stations of main gas pipelines.

1. Introduction

This program-methodology establishes the order and sequence of work when setting up and checking the effectiveness of ventilation and air conditioning systems.

This program-methodology applies to ventilation and air conditioning systems of industrial premises and premises of residential, public, administrative and domestic buildings.

1. General provisions

2.1. Adjustment work on ventilation and air conditioning systems is carried out with the following purposes:

— establishing compliance of the system with project data;

— assessment of the quality of installation (reconstruction, major repairs) of systems;

— commissioning and maintenance of basic parameters during operation;

— assessment of the effectiveness of systems, including assessment of their sanitary and hygienic effectiveness.

2.2. Adjustment work is carried out for ventilation and air conditioning systems in general and for their parts. These parts include:

— ventilation networks (main air ducts and branches);

— equipment (fans, air valves, air heaters, air conditioners);

— devices (dust collection, air intake, air distribution, local suction, air-heat curtains, air showers).

List of production facilities for PNR ventilation systems

No.	Object name	Note
Compressor station
1.	GPA No. 1
2.	GPA No. 2
3.	GPA No. 3
4.	GPA No. 4
5.	Booster compressor unit
6.	Nitrogen production plant
7.	Fuel and pulse gas preparation unit
8.	Production and Energy Unit (PEB)
9.	Modular laboratory complex (MLC)
	Boiler room
10.	Own power plant (ESN)
11.	Transformer substation (CTS) of gas cooling units No. 1, 2, 3, 4
12.	Transformer substation of auxiliary structures
13.	Oil storage pump room
14.	Warehouse of oils in containers
15.	Checkpoint
16.	Sewage pumping station for domestic wastewater
17.	Sewage pumping station for industrial and rainwater wastewater
18.	Sewage pumping station for rainwater wastewater
Industrial base
19.	Industrial and rainwater wastewater treatment plant
20.	Domestic waste water treatment plant
21.	Pumping station for pumping treated wastewater
22.	Domestic sewage pumping station
23.	SPS for industrial and rainwater wastewater
24.	Mechanical repair shop (RMM)
25.	Material and technical warehouse
26.	Garage parking
27.	Exterior car wash
28.	Warehouse for storing materials and cylinders
29.	Boiler room
30.	Communications center
31.	Pumping station for fire fighting and technical water supply
32.	Water purification and preparation station
33.	Complete transformer substation
34.	Warm parking for 4 cars with a fire station
35.	Dormitory
36.	Community Center
37.	checkpoint

3. Scope and sequence of work

3.1. Preliminary work.

3.1.1. The completeness and compliance of the technical documentation (project) with current regulatory requirements is checked.

3.1.2. According to the documentation under clause 3.1.1, it is necessary to check:

— dimensions of air ducts;

— the density of their connections;

— location of air control devices;

— wiring diagrams for heaters, coolers, air conditioners;

— dimensions and connection of local suction, suffocating devices;

— availability of control and measuring instruments and automation (instrumentation and automation) provided for in the design documentation.

3.1.3. If there are uncoordinated deviations from the technical documentation, as well as significant comments on installation, the commissioning organization must draw up a statement of comments. Observations should be corrected before testing begins.

3.2. Commissioning works.

3.2.1. When commissioning ventilation and air conditioning systems, commissioning work is carried out in accordance with SNiP 3.01.04-87.

3.2.2. should include:

— pre-launch tests (individual tests);

— comprehensive testing.

3.2.3. When organizing and carrying out the above work, the requirements of GOST 12.4.021, SNiP 3.01.04-87, SNiP 41-01-2003, SNiP 3.05.01-85, VRD 39-1.10-005-2000, VRD 39-1.10-049 must be taken into account -2001, PB 12-609-03, VRD 39-1.10-06-2000, benefits.

3.2.4. Pre-launch tests (individual tests) include:

— testing of support equipment (power supply, automation, heat and water supply, refrigeration supply, etc.);

— checking the technical condition of ventilation networks;

- checking the technical condition and testing of equipment and devices, test duration in accordance with the requirements of the manufacturers' instructions, if the test duration is not specified - testing the equipment at idle for at least 1 hour of continuous operation.

After running in the equipment, adjustment tests are carried out with adjustment of individual types of equipment and parts of the system. Adjustment is carried out by performing operations that bring the parameters of parts of the system to the set values.

1). When adjusting ventilation and air conditioning systems to design parameters, taking into account the requirements of GOST 12.4.021-75, the following should be done:

— testing of fans when operating in a network (determining whether the actual characteristics correspond to the passport data: air supply and pressure, etc.);

— checking and adjusting the heat supply of ventilation systems (determining the compliance of actual characteristics with design data: supply temperature, coolant return, pressure drop across heaters, temperature and air flow);

— checking the uniformity of heating (cooling) of heat exchangers;

— testing and adjustment of systems in order to achieve design indicators for air flow in air ducts (adjustment of dampers, regulating ventilation grilles), local suction, and air exchange in rooms;

— checking the effect of natural ventilation.

2). A passport is issued for each ventilation and air conditioning system in the form specified in SNiP 3.05.01-85.

3). Deviations of air flow rates from those provided for in the project after adjustment and testing of ventilation and air conditioning systems are allowed:

± 10% - according to the air flow passing through the air distribution and air intake devices of general ventilation and air conditioning installations, provided that the required pressure (rarefaction) of air in the room is ensured;

± 15% - for air flow of natural ventilation systems;

10% - according to the air consumption removed through local suction and supplied through the shower pipes.

4). Based on the results of individual tests, a report is drawn up.

3.2.5. Comprehensive testing.

Until the deficiencies identified during pre-launch tests are eliminated, comprehensive testing is not allowed.

Comprehensive testing of ventilation systems is carried out during the period of comprehensive testing of the facility, the duration is 72 hours.

1). During comprehensive testing:

— check the system as a whole or simultaneously operating interconnected systems to determine whether the actual parameters comply with those established in the documentation;

— check protection, control and signaling devices of systems;

— identify the reasons why the operating modes of systems established by the requirements are not ensured, and take measures to eliminate them;

— carry out adjustments to ensure that the required parameters are obtained.

2). Comprehensive testing of ventilation systems directly connected to process equipment (including local suction) should be carried out during operation of this equipment. In exceptional cases, by decision of the operating organization, testing at idle speed is allowed.

3). To accept systems into operation after comprehensive testing, the operating organization appoints an acceptance committee.

4). The following documents are presented to the acceptance committee:

- technical documentation;

— certificates of individual testing of equipment;

— factory passports for equipment, as well as certificates and permits for use;

— passports of ventilation systems.

5). Based on the acceptance results, a system acceptance certificate for operation is drawn up.

3.3. Fan characteristics.

3.3.1. When testing the fan, its main characteristics should be determined: performance and total pressure, while taking into account the requirements of GOST 10921

3.3.2. Before starting work you should:

• check the rotation of the fan impeller;
• check the tightness of flange connections and soft inserts (soft inserts should not have distortions or large deflections in the suction line);
• check the gap between the suction cone and the fan wheel, which should not exceed (depending on the type and brand of the fan) 0.5-1.5% of the diameter of the impeller;
• if necessary, clean the impeller and casing;
• check the condition of the ventilation network.

High-pressure fans with ballasts should be turned on when they are closed. Control devices should be opened gradually, and if necessary, control the current in the fan circuit.

3.3.3. The position of the measuring sections should be determined on straight sections of air ducts on the side:

— suction (at a distance of up to 1 diameter) - to measure suction pressure;

— discharge (at a distance of at least 5 diameters) - to measure the discharge pressure.

3.3.4. Atmospheric pressure should be measured using a barometer.

The parameters characterizing the operation of the fan in the network (performance, actual total pressure developed) are compared with the fan’s passport data.

3.4. Setting up (adjustment) of the ventilation network should begin with the branches closest to the fan.

3.4.1. Using dampers or throttle valves, additional resistance is created on the branches so that the amount of supply or exhaust air moved through the branches corresponds to the design data.

3.4.2. Excess air is transferred to areas where there is an underestimation of air flow compared to that provided for in the project.

3.4.3. If there is a complexly branched network, setup should be carried out using one of the following methods:

• gradual approach to a predetermined ratio of actual and required air flow;
• consistent equalization of the ratio of actual air flow to the required one. With this method, adjustment begins with the two holes furthest from the fan.

3.5. Testing and adjustment (adjustment) of air conditioning systems.

3.5.1. When testing local air conditioners (both autonomous and non-autonomous), the parameters of the following equipment should be determined:

- fan;

— air cooler (air heater);

- refrigeration machine.

3.5.2. When testing household air conditioners and household equipment for air conditioners, one should be guided by GOST R 51125, ST SEV 3694.

3.5.3. Testing of air heaters (heaters) should be carried out in order to determine their thermal performance (within the range of intended thermal loads) and aerodynamic resistance, and adjustment - in order to ensure the necessary parameters of the air environment.

3.5.4. Testing of air heaters should be carried out in accordance with GOST 26548.

3.5.5. During testing, the following parameters should be determined:

— air flow through the heater;

— temperature of the air entering and exiting the air heater;

— temperature of water entering and leaving the heater;

— resistance of the heater unit to passing air;

— heating capacity of the heater;

— actual heat transfer coefficient.

Air speed and temperature should be determined behind the heater. At the same time, the temperature of the air entering the heater and the temperature of the water entering and exiting the heater should be determined.

The aerodynamic resistance of the heater should be determined using a differential pressure gauge connected to the fittings before and after the heater.

3.5.6. All measurements should be made in steady state for air and coolant temperatures. Test time - at least 30 minutes. Temperature should be measured at least three times.

The actual heat transfer coefficient of the heater is compared with the certified values.

3.5.7. Testing of the dust collector should be carried out in accordance with GOST R 50820.

3.5.8. When testing air-thermal curtains, the following should be determined:

— temperature of the air supplied by the curtain (at the fan discharge pipe);

— air curtain fan performance.

4. Main indicators for assessing the effectiveness of ventilation and air conditioning systems

4.1. The main indicators for assessing the effectiveness of ventilation and air conditioning systems are the technical characteristics of the equipment.

4.2. Technical specifications include:

— productivity;

— backwater (vacuum);

— noise and vibration level;

— temperature of the surfaces of fences and technological equipment.

4.3. To numerically assess the effectiveness of ventilation and air conditioning systems, test results are compared according to paragraph 4.2 - with technical characteristics systems installed in the documentation.

1. Basic safety requirements

5.1. The results of hazardous and harmful production factors during testing and adjustment of ventilation systems include:

— electric shock when working on equipment or near equipment that has an electric drive and electric alarm, as well as unprotected live parts of electrical equipment;

— injury from moving parts of machines and mechanisms, heavy objects when disassembling, assembling or transporting equipment in insufficient illumination of the workplace;

— falling when working at height and injury from objects falling from a height;

- poisoning when working in places with a high content of harmful substances, with dust and gas contamination;

- diseases when working in rooms and air ducts with low temperature and drafts, increased noise and vibration levels.

5.2. The commissioning organization that sent its personnel to the OAO Gazprom facility and the operating organization OAO Gazprom are equally responsible for ensuring and complying with safe conditions when performing testing and adjustment of ventilation and air conditioning systems.

5.3. The personnel of commissioning organizations is responsible for:

— ensuring compliance with safety regulations during setup, as well as installation, dismantling, operation and repair of ventilation systems;

— monitoring the technical condition of ventilation equipment;

— briefing and training of workers involved in setup, maintenance (operation) of ventilation systems, safe methods and work methods, as well as providing workplaces with warning posters, inscriptions and instructions on safety and labor protection;

— participation in the investigation of the causes of accidents and accidents related to the adjustment of ventilation systems, and in the development of measures to prevent them.

5.4. Commissioning personnel are prohibited from:

— enter the air conditioner chamber while the ventilation unit is running;

— touch the rotating parts of ventilation devices with your hands until they come to a complete stop;

— remove and install guards on rotating parts of ventilation equipment until they come to a complete stop;

- clean and lubricate working ventilation equipment;

- open power panels, starting valves and protective casings of live parts of electrical equipment without permission from the operating organization.

5.5. Instructions regulating the performance of testing and adjustment of ventilation systems must contain general issues security and the following mandatory sections of security requirements:

- before starting work;

— during work;

— when working at height using ladders and stepladders;

— fire and electrical safety;

— when working with power tools;

- V emergency situations;

- upon completion of work.

5.6. The personnel of the operating organization in matters of safety must be guided by the provisions of this standard, as well as approved instructions and regulations.

5.7. Organizational issues of ensuring safety during testing and commissioning of ventilation systems must be resolved taking into account the provisions of the regulatory documents listed in the previous sections of this standard, as well as GOST 12.2.003, GOST 12.2.007.0, PB 03-590-03, PB 08-624- 03, POT RM-026-2003, PUE (section 1, edition 7), PB 12-529-03.

Bibliography

	Guidelines of the Ministry of Health of Russia MU 4425-87	Sanitary and hygienic control of ventilation systems of industrial premises
	OJSC Gazprom standard STO Gazprom 2-1.9-146-2007	Methodology for carrying out adjustment work, checking the efficiency of ventilation and air conditioning systems at the facilities of OJSC Gazprom
	Building regulations SNiP 3.01.04-87	Acceptance into operation of completed construction projects. Basic provisions
	Construction norms and rules SNiP 41-01-2003	Heating, ventilation and air conditioning
	Construction norms and rules SNiP 3.05.01-85	Internal sanitary systems
	Departmental guidance document of OJSC Gazprom VRD 39-1.10-005-2000
	Departmental guidance document of OJSC Gazprom VRD 39-1.10-049-2001	Rules of technical and safe operation condensate pipelines
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	Departmental guidance document of OJSC Gazprom VRD 39-1.10-06-2000	Rules for technical operation of main gas pipelines
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