This unit involves the skills and knowledge required to undertake the recovery of refrigerants, perform pressure and leak testing, evacuations and refrigerant charging in split air conditioning and heat pump systems.
It includes working safely; applying relevant regulations, industry standards and codes of practice in recovering refrigerants; performing pressure and leak tests; evacuating and charging with refrigerant split systems; and completing all required documentation.
Assessment tasks will be designed to reinforce & extend knowledge and skill competence within set & controlled parameters in accordance with each unit’s learning outcomes & performance criteria requirements, incl the setting of work based practical application tasks designed to provide evidence of competence outcomes, within periodic and scheduled timelines.
Students will be expected to demonstrate the following required skills:
* applying relevant work health and safety (WHS)/occupational health and safety (OHS) requirements, including:
* identifying hazards
* risk control measures
* using personal protective equipment (PPE)
* applying safe working practices and relevant legislation, industry standards, codes of practice and regulations
* completing required documentation, including reporting refrigerant recovery, pressure and leak tests, evacuations, charging refrigerant work and system operating conditions determining basic operating conditions, including:
* ambient, evaporation and condensing temperatures
* evaporator and condenser temperature differences
* suction and discharge pressures
* recovering, pressure testing, evacuating, charging and leak testing refrigerant in newly installed split systems to requirements using appropriate equipment, tools and measurement devices
* starting up system and performing function checks
* selecting, obtaining and checking relevant equipment, materials, tools and testing devices required to carry out the work, including:
* A1, A2 and A2L class refrigerants, lubricants and charging equipment
* oxygen-free dry nitrogen cylinder and regulator
* pressure and temperature measurement devices
* pressure testing and refrigerant leak testing equipment and tools
* refrigeration evacuation equipment and measuring equipment suitable for A1, A2 and A2L class refrigerants
* refrigerant recovery/reclaim equipment suitable for A1, A2 and A2L class refrigerants
* refrigeration hand and power tools
* refrigeration service tools
* single head split air conditioning systems
* using lubricants and cleaning materials safely in accordance with safety data sheets (SDS)/material safety data sheets (MSDS).
The qualified trainer and assessor will provide teaching and learning materials as required in the form of workbooks produced by Victoria University and/or via the Victoria University e-learning system.
This unit is studied as part of the following course(s):