R32 Splits in stock now at RSL
RSL News 01/02/18
Pre-Charged R32 Splits, Full range in stock now at RSL
More gas price rises in February ! Please check with us.
We have all the types in stock
R32 - R449A - R448A - R442A - R407A,C,F,H - R134A - R410A - R452A,B - R513A - R507 - R1234 Etc.
Everything you need to know about R32 and other A2L refrigerants
RSL have the answers. Simply call us with questions.
See tips below.
R32 and other A2L “Low Flammability” refrigerants
- Generally, the lower the GWP the higher the flammability.
- A2L only applies when the gas is in the system!
- Otherwise must be treated same as A3 - extremely flammable gas -during transport (ADR), storage, charging and maintenance. Same way as you treat Propane etc.
- Closed vans should be ventilated & labelled for hazardous. Cylinders should be stored outside.
- Special tools may be required where it might come into contact with electrical spark or similar, e.g. pumps, reclaim units, leak detectors and similar. Most reputable brands, Yellow Jacket etc. now available for dual use. Ask RSL. Most hand tools, flaring etc are OK. R32 Cylinders have left hand thread!
- Some form of ventilation should be used when working with the gas. ATEX Zone 2 applies for risk assessment. Fire extinguisher must be to hand.
- Avoid basement installs or where gas can congregate. Always keep ventilating. R32 is heavier than air. Besides flammability, risk of asphyxia.
- EN378 and F-Gas regs. say that everyone working with these should have training in skills of handling flammables, personal protective equipment, leak prevention & detection, cylinder handling, charging, recovery & disposal.
- Systems must be designed in accordance with the risks from flammability, strict max. system gas charges, protect pipework from mechanical damage, dedicated leak detection & alarm types, review ventilation issues.
- Never charge existing HFC systems (eg R410A) with A2L gas, only ones specifically designed for A2L gas. Use minimum charge necessary and avoid losses eg long charging lines etc.
- Observe strict brazing regulations as for flammable gases. Greatest possible hazard is gas build up in the local area. When working on existing installs- recover all gas, break vacuum with nitrogen then OK to braze.
- Make sure proper labelling used.
- Make sure recovery cylinders have correct pressure and fill ratings for A2L. R32 similar Pressures/Temperature as R410A
- Always fire extinguisher to hand at least 2 kg size.
- A2L will ignite in naked flame, unlikely with electrical spark. A3 will ignite with either.
- Risk analyses should reflect all of the above.
- Be aware that your customer may have questions that they will be seeking assurance on.
- Don’t cut corners. If R410A allows you to cut some corners, then stop now. R32 may not be so forgiving.
Ask RSL !