25/03/2020 – From next June 18 in the air conditioning and conditioning systems considered relevant for the purposes of fire safety, refrigerant fluids with a lower impact on the greenhouse effect may be used even if they are 'slightly flammable'.
In fact, the DM March 10, 2020 containing “Fire prevention provisions for air conditioning systems included in activities subject to fire prevention controls”.
Fire prevention: the news for air conditioning systems
The DM sanctions the green light to use of refrigerant fluids with less impact on the greenhouse effect, albeit classified as low flammability. To date, in fact, it is mandatory to use only non-flammable or non-flammable and non-toxic refrigerant fluids in air conditioning systems present in areas open to the public
The need to update the technical provisions started from the observation that the limitations of the technical fire prevention rules can be overcome by the technological development of the plants; in this way it will be possible not to penalize the most efficient technical solutions from an energy point of view and with a lower environmental impact.
Fire-fighting air conditioning systems: what the Ministerial Decree provides
The provisions contained in the decree apply to design, construction, operation and maintenance of the systems air conditioning systems included in activities, both new and existing, subject to fire prevention controls, namely schools, hotels, commercial activities, entertainment and public entertainment, health facilities and offices.
Therefore, the use of fluids classified A1 or A2L according to ISO 817 “Refrigerants – designations and safety n classification” or equivalent standard will be allowed, it being understood that the design, installation, operation and maintenance are performed in a workmanlike manner.
The documentation of these plants must be including the use and maintenance manual, which must be prepared in Italian by the technical manager of the plant installation company, in accordance with the provisions of current legislation and must contain the plan of checks, checks and maintenance operations.