Safety is of utmost importance when operating and servicing refrigeration systems. This article will provide the necessary guidelines and measures to ensure Safety in operating and repairing refrigeration systems, helping you do your work more efficiently and safely.
Overview of refrigeration system industry
Refrigeration system industry
The refrigeration system industry specializes in the design, installation, operation, maintenance and repair of refrigeration system such as air conditioners, refrigerators, cold storage, and factory refrigeration systems. This industry ensures a safe working environment, minimizes energy loss and meets the diverse needs of industry.
Typical businesses
- Carrier: Specializing in air conditioning and refrigeration systems, providing energy-saving solutions.
- Daikin: Manufacture of refrigeration system equipment such as air conditioners and air purifiers.
- Panasonic: Specializing in manufacturing electronic products, household appliances and refrigeration systems.
- LG: Providing air conditioning and refrigeration systems, famous in the electronics industry.
- Mitsubishi Electric: Manufacturing refrigeration system equipment for factories and commercial centers.
- Samsung: Providing air conditioning and refrigeration system solutions.
- Toshiba: Providing refrigeration systems for factories and commercial centers.
Jobs in the industry
- Refrigeration system design: Plan and design refrigeration systems to suit technical needs.
- Installation: Installation of refrigeration equipment and systems such as air conditioners and freezers.
- Maintenance and repair: Check, clean and repair the system to ensure stable operation.
- Performance testing and evaluation: Evaluate system performance to meet technical requirements.
- Providing energy saving solutions: Helps reduce electricity costs and environmental impact.
- Technical advice and support: Customer support and refrigeration system optimization.
Methods to prevent risks caused by refrigeration systems
To minimize the danger from the refrigeration system, note:
- Follow the instructions: Operate according to manufacturer's instructions.
- Inspection: Have the system inspected by a specialist before use.
- Periodic check: Regularly check equipment and lines to detect problems promptly.
- Perform inspection: Adhere to inspection schedules and address risks as soon as they are detected.
- Safety training: Workers must attend occupational safety and health (OSH) training courses.
Safety training in refrigeration system operation and repair
Reasons to attend training course
Training course Safety in operating and repairing refrigeration systems provides knowledge of equipment, construction, and safe use to protect workers. The course helps identify hazards from refrigeration system and how to handle emergencies. In addition, it helps to comply with occupational safety regulations and build a safety culture.
Training content
According to Decree No. 44/2016/ND-CP, training content includes:
- Legal policies and rights and obligations of employees
- Structure and operation of refrigeration systems and pressure equipment
- Operational risks and precautions
- Operating, troubleshooting, and emergency response procedures
- First aid and safety inspection
Form and duration of safety training in refrigeration system operation and repair
- First training: For newbies, at least 24 hours, including testing.
- Regular training: Every two years, half the duration of the first course.
- Retraining: When there is a change in process, technology, or the employee is absent for six months or more, the time is half of the first term.
Training costs
Costs are quoted by the center based on quantity, location, and business requirements.
Overview of safety in operating and repairing refrigeration systems
Safety training in refrigeration systems
Training course Safety in operating and repairing refrigeration systems Help workers recognize and prevent accidents in the refrigeration system industry, group 3, to minimize risks at work.
Training time
First Safety Training:
- Total time: At least 24 hours, including testing.
- 8 hours of theory on safety law.
- 8 hours of theory on occupational safety and hygiene.
- 4 hours of specialized theory.
- 2 hours of professional practice.
- 2 hour test.
- The course usually takes place in 6 sessions, lasting 3 days.
Training course content
Legal system on labor safety (8 hours):
- Overview of legal documents (6 hours)
- Technical safety standards (1 hour)
- Regulations of state management agencies (1 hour)
Basic knowledge of labor safety (8 hours):
- Hazards in the Workplace (4 hours)
- Improving working conditions (1 hour)
- Safety Culture in Manufacturing (1 hour)
- Rights and obligations of workers (1 hour)
- Safety rules and signs (1 hour)
General specialized training (6 hours):
- Overview of hazardous machinery and equipment, risk management, and safe work procedures (4 hours theory, 2 hours practice)
- Test (2 hours)
- Total: 24 hours (22 hours theory, 2 hours practice)
- Labor safety card
After completing the safety training course in repair operations refrigeration system and pass the test, the worker will be issued a group 3 occupational safety card. This card clearly states personal information, job, working environment, training time and confirmation of course completion.
Refrigeration system inspection
Standards and regulations approved by competent authorities, including:
- QCVN01:2008/BLDTBXH, QCVN21:2015/BLDTBXH
- QTKD08:2016/BLDTBXH, TCVN 8366:2010
- TCVN6104:2015, TCVN 6008:2010
- TCVN9358:2012, TCVN9385:2012
Foreign standards may be used, but not lower than domestic standards.
Inspection process
- Check technical documents: Check factory records, operating logs and pre-inspection.
- Technical inspection inside and outside: Visual and non-destructive testing by ultrasound and radiography.
- Experiment: Durability and tightness test at specified pressure.
- Safety and protection inspection: Check safety valve, pressure gauge, temperature relay, and grounding system.
- Operational test: If the above steps meet the requirements, run the test at the allowable pressure.
- Processing results: Make inspection report, recommend correction, affix stamp and issue results.
Time to check the cooling system
Inspection of refrigeration and air conditioning systems is performed when:
- First time: After installation is complete, before use.
- Periodic: Every 3 years; every 2 years for systems using toxic or flammable refrigerants.
- Abnormal: When required, change location, repair, or stop using for more than 12 months.
Inspection costs
Inspection costs according to circular 41/TT/2016/BLDTBXH, can be adjusted according to the case. Contact ISCTC center for details.
Safety rules in operating and repairing refrigeration systems
The cooling system needs to be completely installed.
After installation, maintenance, or repair, ensure that the equipment is in place and properly tested. Double-check joints, threads, and fasteners. Never operate the system if the equipment has not been installed correctly as designed.
Operators need knowledge and experience in operating refrigeration systems.
Operator and Manager cold storage system requires in-depth knowledge of the system's structure, operation, and technical features to optimize performance. Large systems require experienced professionals due to their greater complexity and operational requirements than individual systems.
Operation must meet safety requirements.
Always ensure the safety of people and equipment, stop immediately when there are signs of abnormality. Maintain the required temperature and humidity of the cold room to prolong the life of the equipment and reduce repair costs. Troubleshoot quickly to avoid bigger problems. Technicians need to concentrate when starting the system.
Common types of accidents in the refrigeration industry
Accidents in the refrigeration industry may include:
- Fire and explosion: Due to refrigerants such as propane, butane, ammonia, R-22, R-410A if not stored properly.
- Electrical accident: Risk of voltage, electrical surge, or electric shock when working on electrical systems.
- Chemicals: Improper use of coolant can be harmful to health.
- Injury: The device may break or scratch during installation and repair.
- On fire: Risk from compressor and radiator if not operated or maintained properly.
Benefits of Safety Training in Refrigeration System Repair Operations
Safety training in the refrigeration industry brings many benefits to businesses after completing the occupational safety training course according to the regulations. Decree 44/2016/ND-CP:
- Workers recognize and prevent occupational accident risks.
- Enterprises establish risk prevention measures in production and maintenance.
- Reduce costs when there are occupational safety incidents.
- Maintain continuous production, increase productivity and product quality.
- Comply with occupational safety laws and avoid legal risks.
- Enhance reputation and professionalism, strengthen corporate brand.
- Training provided by formal units helps prevent hazards and protect workers from injury and death.
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