R32 Compatible Air Conditioning Brands UK: Complete Guide for Engineers and Buyers
R32 has become the dominant refrigerant in new UK residential and light commercial air conditioning systems, replacing R410A across virtually all major brands. This guide covers which UK AC brands use R32, how to verify compatibility, and what engineers need to know about servicing R32 equipment from different manufacturers.
UK AC Brands That Use R32
All major UK AC brands now offer R32 systems as standard for new residential and light commercial split and multi-split installations:
- Daikin: Full range of R32 splits (Stylish, Perfera, Emura series) and multi-splits. Daikin was one of the earliest adopters of R32 in the UK.
- Mitsubishi Electric: MSZ-AP, MSZ-LN and Ecodan heat pump ranges all use R32. Mitsubishi Heavy Industries also fully transitioned to R32.
- LG: Art Cool, Artcool Mirror and DUALCOOL ranges — all R32.
- Samsung: Wind-Free and WindFree Elite ranges — R32.
- Fujitsu: Airstage and Comfort residential range — R32.
- Hitachi: Residential split and RAD series — R32.
- Panasonic: Etherea and Z series — R32.
- Toshiba: Haori, Seiya and Shorai ranges — R32.
- Gree, Midea, Haier: Budget and mid-range UK imports — R32.
How to Confirm the Refrigerant in an Existing System
Before servicing any AC system, always verify the refrigerant type:
- Check the outdoor unit data plate or nameplate (lists refrigerant type and factory charge weight)
- Check the indoor unit label (some brands list refrigerant on both indoor and outdoor units)
- Check the installation manual or manufacturer’s specification sheet for the model number
Do not assume all systems of a given brand use the same refrigerant — older units from the same brand may still contain R410A.
Servicing R32 Systems: Key Brand-Specific Notes
- Daikin: Specifies maximum 3.0 kg charge per refrigerant circuit for A2L compliance in most residential units
- Mitsubishi Electric: Provides detailed EN 378 compliance charts per model — always check the installation manual for room size vs charge weight limits
- Multi-split systems: Charge weight can be significant — verify total combined R32 charge against EN 378 limits for each occupied space served
Supplying R32 for installations across all these brands? Buy R32 9 kg cylinders from Refrigerant Gas Supplies Ltd — F-Gas compliant, 99.9%+ purity, next-day delivery to engineers across mainland UK. See also our full refrigerant range.
Frequently Asked Questions
Which AC brands use R32 in the UK?
Daikin, Mitsubishi Electric, LG, Samsung, Fujitsu, Hitachi, Panasonic, Toshiba, Gree and Midea all manufacture R32 systems for the UK market. R32 is now the standard refrigerant in new UK split AC and multi-split systems.
Are all R32 cylinders the same?
Yes in terms of refrigerant specification — all contain R32 to 99.9%+ purity. They differ only in size (9 kg, 10 kg, bulk). Choose based on job size. All must be refillable cylinders under UK F-Gas rules.
Can R410A tools be used with R32?
Some can, but recovery machines must be A2L rated for R32. Manifold gauges must have R32 PT scale. Charging hoses should be R32 rated. Always check tool ratings — do not assume R410A-only equipment is suitable.