The ventilation system in any organization must go through the acceptance process, according to the results of which an act of testing the ventilation system of the established sample is issued and a passport is issued.
The test certificate of the ventilation system refers to the executive documentation. According to internal sanitary standards (SNiP 41-01-2003, 2008) organizations in whose buildings air conditioning and ventilation systems are required to issue a comprehensive system test certificate.
A document is drawn up after the installation of equipment. All tests are carried out in accordance with the standards. SNiP 3.05.01–85. They are carried out to the finishing of the premises.
The working certificate of ventilation testing is developed after the approval of a technical design or a feasibility study, that is, at the design stage of communications.
Rospotrebnadzor ventilation requirements
Rospotrebnadzor (SES) oversees compliance of the quality of services with existing sanitary and epidemiological requirements. Ventilation systems put into operation are necessarily controlled by the executive bodies of the SES. If all the parameters are consistent, an act of testing the effectiveness of the ventilation system is issued.
The equipment is tested for effectiveness by employees of the sanitary-epidemiological services. It should be borne in mind that the procedures for supervision of SES and technical control are very similar. To obtain an act of comprehensive testing of ventilation systems, it is necessary to provide a package of documents to Rospotrebnadzor. SES specialists carry out a detailed inspection of the ventilation system, all equipment and mechanisms. The efficiency of their work is determined, the main task is to provide staff with clean air. If the task is not completed, experts can turn off the ventilation equipment and completely shut down the enterprise.
Commissioning aerodynamic tests of ventilation equipment
Commissioning of the assembled ventilation systems is carried out in accordance with the norms SNiP 111-28-75. In the course of work, the system is debugged and all parameters of the work are brought to standard and design indicators.
The purpose of testing the ventilation system: Determining the degree of readiness of the equipment for work.
Before testing, the equipment turns on for 7 hours. The results are recorded in the act of individual testing of ventilation equipment.
During start-up tests, it is carried out:
- control over the discrepancy between actual and design indicators, as well as compliance with technical specifications and building codes during assembly;
- search for leaks in the channel system, testing the quality of connections;
- control over the volume of air passed by distribution and reception chambers of general exchange equipment;
- conformity control of the manufacturer's information on the pressure and performance of the ventilation unit;
- testing the uniformity of the heating elements. If during the preparation of the test report of the ventilation system, the coolant has not yet been supplied to the system, this test is skipped.
Testing of automatic and remote control is carried out simultaneously with testing of the ventilation system, which is indicated in the act. Tests are considered successful if during the work all the devices and mechanisms worked properly.
The deviation of indicators within 10% in any direction is allowed. After the audit is completed, a test report of the ventilation system is drawn up and the commission gives permission to start operation.
Contents of the ventilation test certificate
In the act of testing the ventilation system, the following points are noted:
- deviations from the original calculations agreed with the client and allowed during the installation of the equipment;
- technical parameters of heaters, fans, ventilation ducts, electrical appliances, filters, valves, their condition;
- test results and commissioning;
- quality of installation and installation;
- indicators of rarefaction or air pressure in each of the rooms;
- air exchange rate for each room.
The act of testing a ventilation system is supplemented by an act of covert work and working drawings.
Smoke ventilation test certificate
There is a standard GOST R 53300-2009 on smoke protection of buildings and buildings, which describe methods for testing ventilation. At the end of testing, an act of smoke ventilation testing is drawn up.
Several test procedures are used.
The first is a staircase support. The air for backwater is supplied by a valve mounted on the ceiling of the upper landing. On the roof of the building is a ventilation installation. GOSTs clearly indicate the locations of pressure measuring points supported by the smoke ventilation system. The protocol of the test report includes the latest measurements taken after adjustment.
Pressure is measured in two modes:
- With the doors of the stairwell closed, the pressure on the doors of the first and upper floors is measured;
- With closed doors, except for the floor door with equipped access to the street. Measurements are taken near the closed door of the floor closest to the floor with access.
The backwater in the elevator shaft is measured as follows:
The elevator is installed on the required floor, its doors open. On the next floor, the doors of the elevator shaft are opened (using a special key) and pressure is measured in it.
Final measurements made in the smoke exhaust ventilation test certificates are attached to the equipment passport.
The act of cleaning the ventilation ducts
A periodic check of the chimneys for density and cleaning the ventilation should be carried out by specialists from the housing office or the management company. Based on the work, an act of cleaning the ventilation ducts is drawn up. The inspection is attended by the chief engineer of the management company or the housing office, a technician and chimney sweep, cleaning the ventilation ducts.
The act lists the addresses of the houses and apartments in which the work was carried out, the date of the next quality check for cleaning the ventilation ducts is indicated.
The act necessarily contains a list of houses in which violations have been identified. Lists defects that are required to be corrected within the time period specified in the certificate for cleaning ventilation.
An act is being drawn up to clean the ventilation channels for submission to the city gas office. One copy of the ventilation cleaning act remains with the management company or the Housing Office.
Independent ventilation system check
Acts of individual testing of ventilation equipment are also drawn up by commercial organizations. Often, the contractor does not trust the installers. There are frequent cases when small errors in the operation of ventilation “are not noticed” in the expectation that during operation they will not significantly affect the efficiency of ventilation.
It would seem that the fan works, moves the air. But the performance may be more or less than the calculated one; the balance stipulated by the project has not been achieved. Therefore, some customers order an independent audit. This paid service is provided only by laboratories with special accreditation.As a rule, customers come here after signing the act of comprehensive testing of the ventilation system, when the expected effect of the equipment is not. At the same time, the equipment has already been received and transferred and the entire amount due by the installation company has been received.
Sometimes the installers themselves turn to an independent laboratory to obtain passports and certificates of comprehensive testing of ventilation systems, equipment testing. Standard samples of ventilation system test certificates are issued. Specialists from the ventilation laboratory will not only accurately measure all the performance of the system, but also give advice on correcting problems.
