Elements and Performance Criteria
- Prepare to recover refrigerants, pressure and leak test, evacuate and charge split systems.
- OHS procedures for a given work area are identified, identified, obtained and understood
- Established OHS risk control measures and procedures are followed in preparation for the work.
- Safety hazards which have not previously been identified are noted and established risk control measures are implemented.
- The nature of the problem is obtained from documentation or from work supervisor to establish the scope of work to be undertaken.
- The work is appropriately sequenced in accordance with job schedule.
- Appropriate personnel are consulted to ensure the work is coordinated effectively with others involved on the work site.
- Refrigerants, lubricants and cleaning materials needed for the work are obtained in accordance with established procedures and checked against job requirements
- Tools, equipment and testing devices needed to carry out the work are obtained and checked for correct operation and safety
- Preparatory work is checked to ensure no damage has occurred and complies with requirements.
- Recover refrigerants, pressure and leak test, evacuate and charge split systems.
- OHS risk control measures and procedures for carrying out the work are followed
- Checks are carried out to ensure the system or component parts are isolated, when necessary, in strict accordance with OHS requirements and procedures
- Machines/plant are checked as being isolated where necessary in strict accordance OHS requirements and procedures and circuits are isolated and confirmed by appropriately competent personnel
- Refrigerants are removed from a split system safely into suitably labelled containers in accordance with regulatory requirements and industry practices, and any electrical work is referred to an appropriate licensed person
- Precautions are taken to prevent damage to components while pressure testing the system
- Pressure testing is conducted using dry nitrogen at a pressure relative to the refrigerant to be used
- Leaks are located and rectified using testing methods appropriate to the system under test and in accordance with industry practices
- Split system is evacuated to the required level and cleaned the system of all moisture and other containments in accordance with industry practices
- A 'Drop test' is used to prove effectiveness of the evacuation in accordance with industry practice using an appropriate electronic vacuum gauge
- Components lubricants are checked and maintained in accordance with manufacturer's requirements
- Split systems are charged with the appropriate refrigerant in accordance with manufacturer's requirements and industry practices
- Problematic situations that arise during the work are dealt with in an appropriate manner
- Split systems are pressure and leak tested, evacuated and charged efficiently without unnecessary waste of materials or damage to apparatus and the surrounding environment or services and using sustainable energy practices
- Complete and report refrigerants recovery, pressure and leak test and evacuate and charge work
- OHS risk control work completion measures and procedures are followed
- Work site is cleaned and made safe in accordance with established procedures
- Contaminated refrigerant is dealt with in accordance with legislative/regulatory requirements
- Completion of the work is documented and an appropriate person or persons notified in accordance with established procedures