Elements and Performance Criteria
- Prepare to install and commission Ammonia refrigeration systems
- OHS procedures for a given work area are identified, obtained and understood through established routines and procedures
- Established OHS risk control measures and procedures are followed in preparation for the work.
- Safety hazards which have not previously been identified are reported and advice on risk control measures is sought from the project engineer.
- The nature of work is obtained from documentation or from project engineer to establish the scope of work to be undertaken.
- Advice is sought from the project engineer to ensure the work is coordinated effectively with others.
- Sources of materials that may be required for the work are accessed in accordance with established routines and procedures.
- Install and Commission Ammonia refrigeration systems.
- Established OHS risk control measures and procedures for carrying out the work are followed. Site establishment carried out
- Measuring system operating parameters is conducted in strict accordance with OHS requirements and established safety procedures
- Major components and pipe work is installed in compliance with all applicable Standards, Codes and Regulations
- Pressure testing is conducted at a pressure compatible with Ammonia and in accordance with applicable standards
- Precautions are taken to prevent damage to components while pressure testing the system
- Leaks are located and rectified using testing methods appropriate to the system and in accordance with industry practice
- System is evacuated in accordance with industry practices
- System is charged safely with Ammonia and lubricants in accordance with industry practices
- Pre operational checks are carried out on all operating and safety controls. A "Dry Run" is carried out
- System is commissioned and all adjustments made to operating and safety controls. Adjustments and setting made to all refrigerant flow metering devices and level control devices.
- Caution to be taken with temperature reduction of coolrooms and freezers. Temperatures are reduced in accordance with industry practices
- Maintenance procedures to be carried out which include inspection and cleaning of all strainers, filters and collection of oil sample for analysis
- Training given to personnel responsible for the operation and maintenance of the refrigeration system.
- Complete work and report on installation and commissioning of Ammonia refrigeration systems
- OHS work completion risk control measures and procedures are followed.
- Work site is cleaned and made safe in accordance with established procedures.
- Contaminated refrigerant and lubricant is dealt with in accordance with legislative/regulatory requirements
- Operation conditions and commissioning figures are documented, including identification of any parameter that is not within the specified range for the system.
- All mechanical and electrical documentation to be marked up "As Installed"