Saneo A019-05KR2 Manual Del Usuario página 34

assessment specification recognised in the industry sector concerned.
Service operations must only be carried out in accordance with the
recommendations of the equipment manufacturer. Maintenance and repair
operations requiring the assistance of other qualified persons must be carried out
under the supervision of the person competent for the use of flammable
refrigerants.
- Checking the area :
Before starting work on systems containing flammable refrigerants, safety checks are
necessary to ensure that the risk of ignition is reduced. For repairs to the
refrigeration system, the following precautions must be observed before working on
the system.
- Intervention procedure
Interventions must be undertaken as part of a controlled procedure in order to
minimize the risk of flammable gas or vapour during the work.
General work area
-
All maintenance personnel and other persons working in the local area must be
informed of the nature of the work performed. Any work in confined spaces must be
avoided. The area surrounding the workspace must be divided into sections. Ensure
that conditions within the area have been made safe by controlling flammable
materials.
- Checking the presence of refrigerant
The area must be checked with an appropriate refrigerant detector before and during
the work to ensure that the technician is aware of the existence of potentially
explosive atmospheres. Ensure that the leak detection equipment used is suitable for
use with flammable refrigerants, i. e. it does not produce sparks, is properly sealed
and has intrinsic safety.
- Presence of fire extinguishers
If work causing heat is to be carried out on refrigeration equipment or its associated
parts, appropriate fire protection equipment must be available within easy reach. A
dry powder or CO2 extinguisher must be located near the loading area.