Local Air-conditioner / User Manual
13 / 396 EN
Warnngs (for usng R290 refrgerant only)
1. General nstructons
1.1 Checks to the area
Prior to beginning work on systems containing flammable
refrigerants, safety checks are necessary to ensure that the risk
of ignition is minimized. For repair to the refrigerating system, the
following precautions shall be complied with prior to con-ducting
work on the system.
1.2 Work procedure
Work shall be undertaken under a controlled procedure so as to
minimize the risk of a flammable gas or vapour being present while
the work is being performed.
1.3 General work area
All maintenance staff and others working in the local area shall be
instructed on the nature of work being carried out. Work in confined
spaces shall be avoided. The area around the workspace shall be
sectioned off. Ensure that the conditions within the area have been
made safe by control of flammable material.
1.4 Checking for presence of refrigerant
The area shall be checked with an appropriate refrigerant
detector prior to and during work, to ensure the technician is
aware of potentially flammable atmospheres. Ensure that the leak
detection equipment being used is suitable for use with flammable
refrigerants, i.e. nonsparking, adequately sealed or intrinsically safe.
1 Safety awareness
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