This course covers the following topics: fabricate and fit mechanical and brazed joints; pressure test and evacuate to BSEN378; charge a blended refrigerant analyse system performance to ensure efficiency (using pressure, temperature, refrigerant state and rule of thumb); leak test to EC1516/2007; maintain F-Gas log books and records; handle refrigerant safely and dispose of legally pressure regulation compliance; leakage checks; recovery, install, service, and maintain - systems more than 3kg.