IE F-Gas Category IV case studies
IE F-Gas Category IV · Put your knowledge to work in context.
The F-Gas Category IV certificate is the entry-level qualification for people in Ireland who handle fluorinated greenhouse gases while carrying out basic tasks - typically recovering refrigerant from small stationary equipment, checking for leaks with suitable instruments, and keeping the associated records. It suits service technicians, maintenance staff, appliance fitters and facilities personnel who touch refrigerating, air-conditioning or heat-pump systems but do not yet work at the higher categories covering installation, commissioning or major servicing. The IE F-Gas Category IV case studies are 5 cases and about 4,041 words.
1The Hotel Chiller Top-Up Request
A maintenance technician is called to a 96-bedroom hotel in the west of Ireland. The plant room holds one air-cooled chiller running R-410A with a nameplate charge of 38 kg, and a rooftop split serving the function room with a nameplate charge of 3.5 kg, also R-410A.
855 words, about 4 min2Two Cylinders and an R-22 Cold Room
A technician is asked to look at a walk-in cold room at a small supermarket. The condensing unit nameplate reads R-22, charge 4.8 kg.
778 words, about 4 min3The Cold Store Log with Gaps and a Dead Detector
A cold store distribution depot runs a single R-404A low-temperature condensing unit with a nameplate charge of 180 kg. A fixed refrigerant detection system was fitted in 2019, but the maintenance file shows no calibration or bump test since commissioning, and the operator says it 'beeps sometimes'.
774 words, about 4 min4Recovering R-32 from a Failed Split
An installer is replacing a 10-year-old 7 kW wall-mounted split in an apartment. The nameplate gives R-32, factory charge 1.15 kg, and the unit carries the A2L flammable refrigerant symbol.
794 words, about 4 min5Basement Plant Room: Alarm and a Collapsed Cleaner
A technician arrives at a town-centre retail unit to investigate a pressure fault on a basement chiller running R-134a, charge 90 kg. The plant room is 4 m by 3 m by 2.4 m, reached by a single door at the top of a short stair, with no mechanical ventilation and no fixed detection.
840 words, about 4 min