F-Gas Category II (IE) case studies
F-Gas Category II (IE) · Put your knowledge to work in context.
The F-Gas Category II (Ireland) credential is a competence certification for technicians who work on refrigeration, air-conditioning and heat-pump equipment containing fluorinated greenhouse gases, or on equipment containing ozone-depleting substances. It sits alongside the other operator categories and is aimed at people whose work involves the practical handling of these gases rather than solely managing a company's F-gas compliance obligations. The F-Gas Category II (IE) case studies are 5 cases and about 3,209 words.
1The 7.5 kg Split and the Category II Certificate
You hold a Category II F-Gas certificate and are sent to a small office block where a wall-mounted split system (R-410A, nameplate charge 7.5 kg, not hermetically sealed) has been losing capacity since spring. The building manager says the last documented leak check was 16 months ago and that the unit 'just needs a top-up'.
599 words, about 3 min2R-404A, 14 kg, and a Wholesaler Who Still Lists It
A small cold store runs a single-pack freezer on R-404A with a nameplate charge of 14 kg. The evaporator has a pinhole leak, the unit has been topped up three times in two years, and the operator wants you to 'do the same again' before the busy season.
631 words, about 3 min3The Supermarket 'Gas Log' With Three Words On It
You take over maintenance of a small supermarket with three systems: Unit A, a dairy case on R-134a with a nameplate charge of 8.0 kg; Unit B, a medium-temperature pack on R-407C with 22 kg; Unit C, a hermetically sealed R-410A split serving the office, 4.5 kg. The handover folder contains a single sheet headed 'gas log' with three entries reading 'checked, OK'.
624 words, about 3 min4Closing the Butcher's Shop: Three Gases, One Cylinder
You are decommissioning the plant room of a butcher's shop that has closed. Three systems are to be removed: a condensing unit on R-22 with a nameplate charge of 9 kg; a freezer pack on R-404A charged with 5.0 kg, which has run for years with a high discharge pressure, a permanently bubbling sight glass and a habit of being topped up 'with whatever was on the van'; and a prep-room split on R-407C with 3.2 kg and a burnt-out compressor.
698 words, about 3 min5A2L Commissioning: Nitrogen, Vacuum and the Shortcut
You are commissioning a replacement split system in a first-floor office measuring 4.5 m × 3.5 m × 2.7 m. The unit is factory-charged with 2.4 kg of R-32 (A2L) and the interconnecting pipework, which you have just brazed, adds no extra charge.
657 words, about 3 min