R32: the coolest way to comply
A-Gas Managing Director John Ormerod with ten top tips on how you should work with the low GWP refrigerant R32.
1. Know why you should make the switch
R32 will become a big part of the future in air conditioning especially for split systems. Under F-Gas small split systems containing high GWP gases (above 750) will be banned from 2025. R32 is a single component, zero ODP gas with a GWP of 675, significantly less than R410A, which has a GWP of more than 2000. Air conditioning manufacturers are planning for this and that’s why systems running on R32 are already available.
2. Understand why R32 is a good choice
3. Get ready for mild flammability
R32 has less flammability than propane but will still be covered by the same European regulation, EN378, which relates to charge sizes.
4. Know your EN378
5. Remember the van
From a transport perspective transporting mildly flammable refrigerants like R32 is no different to moving Isobutane or Propane. Engineers are used to carrying flammables in their vans already and should be well versed in the requirements of ADR and the transport of dangerous goods. General good practice is required and you should ensure that no cylinders are connected to manifolds or equipment while on the road.
6. Handle the pressure
R32 pressures are only slightly higher than R410A and I suspect that engineers would probably not see the difference given the precision of gauges. My understanding is that air conditioning manufacturers are making the same size connections in thread form as they use for R410A which means the hoses and gauges will be compatible.
7. Get the right equipment
8. Attend the industry events
9. Understand and manage risks
10. Stay in the know
This answered many of the questions being asked about the mildly flammable gas. Joining me on the webinar was Scott Davies from JAVAC, Martyn Ives from Fujitsu and ACR Journal Editor Will Hawkins.
Visit the A-Gas website for more information about R32