Elements and Performance Criteria
- Prepare to recover refrigerants, pressure and leak test, evacuate and charge refrigeration appliance.
- 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 and location of the work is determined from documentation or appropriate person(s) 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 in accordance with established procedures 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 refrigeration appliance.
- 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
- Circuits/machines/plant are checked as being electrically isolated where necessary in strict accordance OHS requirements and procedures
- Refrigerants are removed from a appliance safely into suitably labelled containers in accordance with regulatory requirements and industry practices.
- Precautions are taken to prevent damage to components while pressure testing the appliance.
- 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 appliance under test and in accordance with industry practices.
- Appliances are evacuated to the required level and cleaned the appliance 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.
- Appliances 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.
- Appliances are pressure and leak tested, evacuated and charged efficiently without 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 work completion risk control measures and procedures are followed.
- Work site and equipment 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