IE F-Gas Category III case studies
IE F-Gas Category III · Put your knowledge to work in context.
The F-Gas Category III credential sits within the family of F-Gas and ODS Regulations qualifications offered by awarding bodies such as City & Guilds. Category III is generally associated with lower-volume refrigerant handling work rather than the full installation and servicing scope covered at higher categories, though candidates should confirm the precise scope of their chosen qualification with the delivering centre before enrolling. The qualification is aimed at technicians and tradespeople whose work brings them into contact with fluorinated greenhouse gases or ozone-depleting substances and who need to demonstrate competence in safe, compliant practice. Assessment is multiple choice, and the content is organised around four equally weighted areas: the F-Gas and ODS regulatory framework; the environmental impact of refrigerants and ODS; containment, recovery and handling of refrigerants; and safety, records and leak checking. The IE F-Gas Category III case studies are 5 cases and about 2,295 words.
1Split Unit With a Slow, Unlocated Leak on a Record-Keeping Boundary
You service a small retail unit with a single split system charged with 4.2 kg of R-410A (GWP 2088). The owner keeps a logbook, but entries are sparse.
498 words, about 2 min2Recovering From a R-22 System Being Decommissioned
A landlord is replacing an old split system that contains 6.5 kg of R-22 (an HCFC, ODP 0.055, GWP 1810). The system has been running but is now isolated and switched off.
451 words, about 2 min3Leak Detection Trigger on a Cascade System
A cold store uses a cascade system: a low-temperature R-744 (CO2, GWP 1) circuit and a high-temperature R-404A (GWP 3922) circuit. The R-404A circuit holds 18 kg; the R-744 circuit holds 40 kg.
465 words, about 2 min4Pressure Testing a Newly Installed Circuit
You are commissioning a new split system charged with R-32 (A2L, GWP 675). The installation is in a first-floor office above a busy café.
428 words, about 2 min5Deciding Whether a Leak Repair Is 'Undue Delay' on a Busy System
A small supermarket has a central plant with 55 kg of R-449A (GWP 1397). During a routine 6-monthly check you detect a leak on a joint in the plant room.
453 words, about 2 min