Why Refrigerant Contamination Is a Serious Problem Refrigerant contamination occurs when a system contains the wrong gas, a mixture of different refrigerants, or gas that has been degraded by moisture, oil or non-condensables. Contaminated refrigerant can damage compressors, reduce system efficiency and create safety hazards — and identifying it quickly saves expensive repair costs. Common […]
Are R32 Systems Required to Have Leak Checks? Yes. R32 is a fluorinated greenhouse gas regulated under UK F-Gas Regulations. Any system containing R32 at or above 5 tonnes CO2 equivalent (approximately 7.4 kg of R32 at GWP 675) is subject to mandatory periodic leak checks. However, the vast majority of domestic R32 heat pumps […]
Buying Refrigerant Gas in the UK: What Engineers Need to Know Purchasing refrigerant gas in the UK is straightforward once you understand the regulatory framework, cylinder options and what to look for in a reliable supplier. Who Can Buy Refrigerant Gas? Under UK F-Gas Regulations, fluorinated refrigerants may only be supplied to and used by […]
R407C and R410A in UK Commercial AC R407C and R410A are two of the most common refrigerants in the UK commercial air conditioning installed base. While both are A1 non-flammable HFC blends used in similar-looking split and multi-split systems, they have distinct properties that affect how they are charged and serviced. Key Differences at a […]
What Happens to Recovered Refrigerant in the UK? UK F-Gas Regulations require that recovered refrigerant is either reclaimed for reuse, recycled, or destroyed. Understanding the reclaim chain helps engineers comply with their obligations and supports the circular economy for refrigerants. The Three Routes for Recovered Refrigerant Reclamation Reclaimed refrigerant is processed at a specialist facility […]
Understanding Saturation Pressures for UK Engineers Every refrigeration and AC engineer needs to understand the relationship between refrigerant pressure and temperature. Saturation data is essential for diagnosing faults, setting superheat and subcooling, and verifying correct refrigerant charge. R32 Key Saturation Pressures (Approximate) 0°C evaporating: ~7.2 bar gauge +10°C evaporating: ~9.1 bar gauge +45°C condensing: ~26.0 […]
Safe Storage of Refrigerant Cylinders Storing refrigerant cylinders correctly is both a legal obligation and a practical safety requirement. UK requirements are governed by DSEAR (Dangerous Substances and Explosive Atmospheres Regulations) and the Health and Safety at Work Act, in addition to F-Gas obligations. Core Storage Requirements Store upright with valve caps fitted Secure against […]
What Is R600a? R600a is the refrigerant designation for isobutane — a natural hydrocarbon refrigerant used almost universally in modern domestic refrigerators and freezers in the UK and across Europe. Its combination of excellent thermodynamic efficiency, very low GWP (3) and zero ODP makes it the clear choice for small, hermetically sealed domestic appliances. Where […]
Why Natural Refrigerants Are Growing in the UK Natural refrigerants — CO2, ammonia (R717) and propane (R290) — are gaining ground in UK refrigeration and air conditioning as the pressure to move away from high-GWP synthetic refrigerants intensifies. Unlike HFCs, natural refrigerants have negligible direct climate impact and are not subject to F-Gas phase-down quotas. […]
The Shift From R410A to R32 in UK Air Conditioning The UK air conditioning market has been transitioning from R410A to R32 for several years. Understanding the differences between these two refrigerants helps engineers, installers and building managers make informed decisions about new installations and system replacements. Side-by-Side Comparison Property R410A R32 GWP 2088 675 […]
