Many customers ask about R32 but have concern on R32 AS FLAMMABLE GAS.
On 9th June 2014, the EU F-Gases Regulation came into force with the aim to protect the environment by reducing emissions of F-gases from refrigeration and air-conditioning units, electrical switchgear, heat pumps, fire-protection systems as well as other sources.
Classified at a grade of A2, R32 gas is a mildly flammable gas. Dispelling the concern surrounding this flammability score, R32 has been used for many years, making up 50% of current R410A gasses. Not only is it a more efficient and environmentally friendly alternative to R410A, but it is equally as safe to use. There have been concerns surrounding the fact that R32 gas is partly flammable, however, this gas is extremely difficult to ignite. In the rare case a fire were to start, R32 burns at a slower speed than walking pace, at 6.7 cm/s as opposed to Propane’s burning velocity of 46 cm/s, reducing the likelihood of any damage.”
Under normal, everyday circumstances, R32 possesses no risk to the air conditioning systems or work environment. There is no possibility of an ignition caused by a spark within the machine or in the magnetic switch of a power panel.
Only under extremely specific circumstances might ignition occur. An example of this would be when ignition energy is applied whilst the gas concentration of R32 is between 13.3% and 29.3%. This gas concentration materializes at a level at which oxygen deficiency can occur (18% oxygen concentration or below), an environment in which people will not work in.
When exposed to high temperatures R32 will, like all HFC refrigerants, break down into three components: carbon dioxide, carbon monoxide and hydrogen fluoride, which converts to hydrofluoric acid, a toxic substance, when it comes into contact with water. It is important to remember that this is the case for all commonly used HFC refrigerants; indeed, this process clearly indicates how important it is for those working in the refrigeration sector to be mindful of safe and proper working practice at all times.
Therefore, there is no danger to use R32 for heat pump and if you need further information , please feel free to contact us !