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4
Sources of ignition
■
When carrying out work on a refrigerant circuit that contains or
previously contained flammable refrigerant, never use sources
of ignition that could ignite the refrigerant.
Remove all possible sources of ignition, including cigarettes,
from the area where installation, repair, dismantling or disposal
work is taking place that may result in refrigerant escaping.
■
Before starting work, survey the immediate surroundings of the
heat pump for flammable materials and sources of ignition:
Remove all flammable materials and sources of ignition.
■
Display no smoking signs.
5
Ventilating the work location
■
Carry out repairs outdoors, or provide adequate ventilation for
the work location before interfering with the refrigerant circuit or
commencing any welding or brazing/soldering work.
■
The ventilation must be maintained for the entire duration of the
work. The ventilation should dilute any refrigerant that may es-
cape and should ideally discharge it to atmosphere.
