CLEAN ROOM CONSTRUCTION

Process of Construction & Installation of Clean Room Air Conditioning System

Cleanroom Air Conditioning System Installation Process

1.1. Preparation :

– Based on the technical documents (requirements and detailed drawings), the technical department of the works prepares the implementation schedule.
– Make a detailed estimate of the request for equipment and supplies and send it to the materials department for timely approval according to the schedule.
– Before importing materials into manufacturing, they must report to the technical department, monitoring the quality of materials to properly and fully meet the new criteria to be imported into the workshop for manufacturing.
– During the production process, the items required to ensure specifications must be continuously monitored and checked products and details at the end of the day.

1.2. Requirements for the technical department:

– Carefully study the technical drawings and requirements of the investor, give the most popular construction methods and steps in advance and receive feedback from the construction department, the materials department, and make suggestions for adjustment (if any). .
– Redraw in detail the standards that need to be properly constructed and ensure technical if the tender drawings are not clear.
– Regularly monitor and check the technique and progress throughout the construction process, promptly adjust when there are errors due to confusion or inappropriateness during the construction process.
– Static acceptance and inspection of finished products prior to pressure or coating testing.

1.3. Requirements of the material supply department:

– Carefully study the main specifications of the required materials before requesting approval for supply.
– Carefully and fully record the parameters, origin before handing over and putting into construction.
– Regularly update equipment and materials on price changes of firms and domestic supply capacity to promptly report any changes.
– Check weekly inventory with small details that are easy to transport and calculate the volume when importing and exporting or delivering a full shift.

1.4. Request to the construction department – the production team.

– Carefully study the technical requirements, principles, details to be manufactured and assembly drawings provided by the technical department, confirm to ensure construction assurance before signing for certification and putting into production (If there is a suspicion or suspicion of an error, it should be reported immediately to the technical department to change).
– Planning personnel and reasonable arrangement of construction force to ensure requirements with products responsible for processing, manufacturing and installing.
– Absolutely comply with technical requirements, labor safety throughout the construction process.
– Regularly supervise, promptly adjust the unreasonable, monitor construction methods, constantly improve construction tools, methods and techniques to ensure assurance, aesthetics and efficiency (any carefully any improvement initiatives of employees that are effective will be reviewed and rewarded and encouraged by the company’s Board of Directors in a timely manner).
– Write daily work progress report and suggestions if any.

2. BEFORE CONSTRUCTION

– Make detailed construction technical design drawings for each part of work, make a detailed implementation plan for each part and discuss with the project management board to coordinate the implementation. Contact the project management board to prepare vehicles and warehouses to gather goods and materials.
– According to the schedule in the construction progress table, discussed specifically with the project management board, proceed to gather construction machinery, tools, equipment, and materials to the construction site.
– Install temporary shielding walls (movable canvas walls) to isolate the construction area and the operating area of the system of equipment to prepare to carry out the partial construction work according to the approved plan. in order not to affect the surrounding areas. Construction according to the rolling method, complete construction of each area and each system to ensure regular operation of the system. After each construction day, all construction tools and equipment must be cleaned up in the right place and carried out clean industrial cleaning to ensure hygiene and beauty of the work.

2.1. Next steps

1. Conduct actual survey before construction.
2. Get a mark of the machine installation location, the location of the air ducts, the main gas pipeline, the location of the power supply for the air conditioners. When determining, it is necessary to cover all cases to locate the most optimal location to proceed with construction and installation. These works must be performed by experienced technicians and if there is a change from the design, they must be discussed and agreed upon by the investor, design consultant, and supervisory consultant. then proceed with construction.
3. Based on the marked positions, install racks and mounts, check the load of these racks and racks.
4. Installation of water pipes, air ducts and pressure test.
5. Processing and manufacturing wind pipes.
6. Install the main power lines.
7. Installation of equipment.
8. Connect water pipes, wind pipes.
9. Pressure test the whole system.
10. Insulating and soundproofing the air ducts.
11. Electrical connection.
12. Improve the system.
13. Calibration and calibration of the system.
14. Operation, test run.
15. Technology transfer, operation and use instructions.
16. Handing over the entire system.

2.2 Industrial hygiene

The replacement and installation process follows the rolling plan, making any area finish that area. During the installation process, it is necessary to regularly carry out industrial cleaning of construction areas to ensure hygiene and safety. After complete installation, calibration and test run of the entire system, conduct a general cleaning of the entire building to prepare for measurement, technology transfer and handover and acceptance.
Check and measure the parameters of the entire system, guide the transfer of technical technology and conduct the overall acceptance test.
Procedures carried out before starting construction
– Receive the site handover, agree on the work implementation plan with the Project Management Board.
– Prepare warehouse of materials, construction equipment and protection work.
– Open the project log.
– Gather officials and workers to participate in construction to disseminate construction plans and learn occupational safety and site rules.
– Gather materials according to the plan for work items.
– Implementation of construction works.
The installation of the air conditioning system is strictly adhered to the current domestic construction and air conditioning system installation standards and other relevant construction standards. All installation and construction work must be based on detailed construction design drawings determined in reality and approved by the Construction Management Board.

3. Construction and installation of air conditioners

Work order

3.1. Gather equipment before shipping:

– Check the condition of the machine and its accompanying materials (copper pipes, condensate pipes, electrical wiring, documents, warranty papers, user manuals…) before receiving the machine and transferring it to the delivery area. from the equipment supplier.
– When the equipment is gathered at the construction site and verified to be inspected and tested, the inspection confirms the conformity of the goods to the contract of the Procuring party, then proceed with the construction steps. Before putting new equipment into installation, it is necessary to thoroughly check the basic functions to make sure the equipment is working before putting it into installation.

3.2 Moving the machine to the construction site

After being inspected by the bid solicitor, the equipment will be transported to each specific installation location at the request of the bid solicitor by specialized means of transport. When moving equipment to areas that are difficult to move, if necessary, we can disassemble the machine clusters and assembly details to move the assembly to the construction area.

3.3 Technical measures for construction works

Marking and detailing work, Determine the location of running gas pipelines for the air conditioning system to get marks, determine the exact location of the parts to be assembled, the position of the axis of the pipes based on the on the design drawings and actual structure of the work. After having the location of the pipes or equipment, combined with the detailed construction design drawings, we proceed to line and record the size of the equipment, the gas pipes, … marking the dividing points. branches, elbows .., positions where mounting brackets, mounting brackets… can be done so that the installation work can be carried out as quickly as possible, with the least impact on the operation of the project.
Mounts and brackets are linked to the building structure by ciphers, eccles, black bolts and threaded mountings, all gas piping, brackets, bolt holes, machined, pre-drilled and welded at the production site before being delivered to the construction site. The distance between the mounts and the brackets is in accordance with the actual specifications on the basis of the SMACNA standard. All brackets and brackets must be painted with anti-rust paint and color before installation.

3.4 Installation of air conditioning equipment

a. Installation and running of gas pipelines and accessories

The construction sequence follows the rolling method and is carried out as follows:
– Install mounting brackets, brackets for gas pipes and accessories. All mounting brackets are attached to the building structures by bolts and screws.
– Complete alignment of pipes (adjusting brackets, checking the tightness of gas pipes, reinforced insulation at connection points…).
– Check and complete the entire gas pipeline system.
– Crane the hot rigs to the locations where they need to be installed.
– Install the hot rig system at the positions that have been positioned, and are ready-made machine platforms.
– Install the indoor units in the positions that have been hung according to the construction drawings.
– Connect the gas pipes to the indoor and outdoor units according to the technical requirements.
– Align and install anti-vibration rubber pads for the air conditioning system.
– Align the instrument by leveling and tightening or loosening the foot bolts. Guaranteed accuracy to standard <1/1000.
– Connect to ground, then connect 3 phase to the machine and determine the correct direction of rotation.

b. Processing and installation of condensate pipes

The construction sequence is as follows:
– Processing mounts and racks after taking the mark.
– Install mounting brackets and brackets.
– Install PVC pipes (pay attention to leveling to create a minimum slope of 1/100 for horizontal pipes) discharge condensate and attached accessories (cone, elbow, pan…). Arrange a number of locations to install steam pipes on the ceiling with insect nets.
– At the positions of the condensate main shaft, arrange siphons to avoid toxic vapors and polluted gases from below through the pipeline into the rooms.
– Carry out the sealing test after the installation is complete (clean the pipe before testing). Connect the pipes to the condensate trays.
– Finishing and plastering the construction hole.

3.5 Installation of equipment for the air duct system

The construction sequence follows the rolling method and is carried out as follows:
– Install mounting brackets, brackets for ducts and accessories. All mounting brackets are attached to the building structures by bolts and screws.
– Installing insulated or non-insulated air ducts into the specified installation position in accordance with the requirements of construction drawings and attached accessories (tampers, elbows, pans…).
– Complete alignment of pipes (adjusting brackets, checking the tightness of pipes, reinforced insulation at connection points…).
– Check and complete the entire pipeline system.
– Install exhaust fan and supply air systems at locations where they need to be installed.
– Install the surrounding accessory systems in the positions according to the construction drawings.
– Connect the air ducts to the fan systems according to the technical requirements.
– Conduct sealed test after installation is complete.
– Finishing and plastering the construction hole.

3.6. Electrical installations

Technical acceptance test to complete the wiring before connecting to the main switchboard and equipment and controllers.
The electricity installed in the electrical cabinet consists of two main parts: the electrodynamic system for the air conditioning unit and the control electrical system connected to the central control devices. The construction sequence is as follows:
– The main part of the electrical cabinet will be installed, measured and tested at the workshop. The terminals of the connecting wires must be reinforced, have specific numbers and have detailed installation drawings. General electrical cabinets must be coordinated with the Management Board to install at a reasonable time before installing the air conditioners.- Construction and installation of cable trays, wire supports after measuring and taking marks.
– Carrying out the power cable from the cabinet to the equipment.
– Check the voltage parameters of the equipment system.
-Recheck the entire system (windpipe, electrodynamic system…) in the state of ready-to-operate equipment, put into acceptance, handover and use.
Note: All match points will be securely played by shuttlecock and using numbered poles. When the whole test is completed, it is allowed to connect the power source to the aptomats.

4. Commissioning, commissioning, handover and put into use:

– Before starting the test run, we need to check the parts.
– Conduct system test operation at the request of the investor, transfer technology to guide the use and operation.
– Prepare documents for acceptance and handover.
– After conducting test run of technology transfer. The two sides agreed to carry out the acceptance test and hand over the entire equipment system to the investor and put it into use.
In order to carry out the construction of the system quickly, ensure safety as well as meet the schedule as required, the issue of construction equipment is also very necessary. Here, we will fully mobilize the company’s machinery and equipment as well as a number of specialized rental machines to ensure the efficiency and quality of construction work with the highest efficiency.