F-Gas Category II (IE) flashcards
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- F-Gas Regulation (EU) 2024/573
- EU regulation controlling fluorinated greenhouse gases such as HFCs, PFCs and SF6; it sets leak-check, certification, labelling, recovery and phase-down obligations and replaced Regulation (EU) No 517/2014.
- ODS Regulation (EC) 1005/2009
- EU regulation controlling ozone-depleting substances including CFCs, HCFCs and halons; it restricts production, use, recovery and destruction of ODS such as R-22.
- Irish F-Gas competent authority
- The Environmental Protection Agency (EPA) is the competent authority in Ireland for enforcing F-Gas and ODS rules and for certification and reporting requirements.
- F-Gas certification
- A personal qualification required for activities such as leak checking, servicing, recovery and charging of equipment containing fluorinated greenhouse gases; it must be obtained through an accredited certification body.
- HFC phase-down
- An EU quota system that limits the total CO2e of HFCs placed on the market, reducing available quota over time to encourage lower-GWP alternatives.
- F-Gas record retention
- Operators must keep leak-check, refrigerant and repair records for at least five years and make them available to the competent authority on request.
- Global Warming Potential (GWP)
- The 100-year warming effect of one kilogram of a gas compared with one kilogram of CO2, whose GWP is 1; higher GWP means greater climate impact.
- CO2e formula
- Tonnes CO2e = refrigerant mass in kilograms multiplied by the refrigerant's GWP, divided by 1000; for example 1 kg R-410A with GWP 2088 equals 2.088 tCO2e.
- R-410A GWP
- R-410A has a 100-year GWP of 2088, so each kilogram released is equivalent to 2.088 tonnes of CO2.
- R-404A GWP
- R-404A has a 100-year GWP of 3922, so each kilogram released is equivalent to 3.922 tonnes of CO2.
- Ozone Depletion Potential (ODP)
- A relative measure of a substance's ability to destroy stratospheric ozone, with CFC-11 set at ODP 1.0; HFCs have ODP zero.
- R-22 environmental properties
- R-22 is an HCFC with ODP about 0.055 and GWP 1810; it depletes ozone and contributes to climate change, and its use is restricted.
- TEWI
- Total Equivalent Warming Impact: the sum of direct refrigerant emissions in CO2e and indirect CO2 emissions from the electrical energy used by the equipment over its life.
- Leak check 5–50 tCO2e
- Equipment containing 5 to 50 tonnes CO2e must be leak-checked at least every 12 months, or every 24 months if fitted with a leak detection system.
- Leak check 50–500 tCO2e
- Equipment containing more than 50 and less than 500 tonnes CO2e must be leak-checked at least every 6 months, or every 12 months with a leak detection system.
- Leak check above 500 tCO2e
- Equipment containing 500 tonnes CO2e or more must be leak-checked at least every 3 months, or every 6 months if fitted with a leak detection system.
- Leak detection system threshold
- A leak detection system is mandatory for equipment containing 500 tonnes CO2e or more; the system must be checked at least once every 12 months.
- Post-repair leak check
- After a leak is repaired, the operator must ensure the equipment is leak-checked again within 24 hours to confirm the repair is effective.
- F-Gas record contents
- Records must include refrigerant type and charge, quantities added, leak-check dates and results, repairs carried out, and details of the technician or company.
- Hermetically sealed exemption
- Hermetically sealed equipment containing less than 10 tonnes CO2e is exempt from periodic leak checks under EU F-Gas rules, but recovery and record rules still apply.
- Refrigerant recovery
- The collection of refrigerant from equipment into a suitable container so it can be reused, recycled, reclaimed or destroyed instead of being released.
- Refrigerant recycling
- Basic cleaning of recovered refrigerant, such as oil separation and filtration, for reuse; it does not restore the refrigerant to virgin product specification.
- Refrigerant reclamation
- Reprocessing recovered refrigerant to virgin specification, usually by an approved facility with laboratory analysis to verify purity before it is returned to the market.
- No venting rule
- It is prohibited to release fluorinated greenhouse gases or ODS to the atmosphere; refrigerant must be recovered before servicing, decommissioning or disposal.
- Recovery cylinder filling
- Recovery cylinders must be dedicated, labelled and filled by weight; the maximum filling ratio must never be exceeded to prevent hydraulic rupture.
- Refrigerant mixing ban
- Different refrigerants must never be mixed in a recovery cylinder; a mixture cannot be reclaimed as a single product and must be treated as waste.
- Refrigerant PPE
- Personal protective equipment for refrigerant work includes cold-insulating gloves, goggles or face shield and protective clothing to prevent frostbite and liquid splash injury.
- Blend charging method
- Zeotropic refrigerant blends must be charged as liquid from the cylinder to maintain the correct composition; charging as vapour can cause fractionation and poor performance.
- Pressure test gas
- Dry nitrogen (oxygen-free nitrogen) is used for pressure testing refrigeration systems; oxygen, air or other gases can cause fire or explosion and must never be used.
- Evacuation target
- A typical evacuation target is 500 microns, about 67 Pa; the system should hold the vacuum, as a rising pressure indicates moisture or a leak.
- Flammable refrigerant precautions
- For A2L or A3 refrigerants, remove ignition sources, use intrinsically safe tools and leak detectors, and ensure adequate ventilation to prevent flammable accumulation.
- Decommissioning recovery
- Before dismantling equipment, recover all refrigerant, isolate and purge the system with nitrogen, then label and remove the equipment for disposal.