7 . DISASSEMBLY PROCEDURE
If, in carrying out repairs and modifications, the work requires the use of arc- and flame-producing
apparatus, such as welding, brazing and
soldering equipment, this work shall only be started after the
rooms have been thoroughly ventilated. While the work is being carried out, the
mechanical ventilation,
if any, shall be kept in constant operation and all windows and doors kept open. In the case of repairs
to parts of the
refrigerant circuit, it maybe necessary that not only the workman but also a second
person shall be present for observation and
assistance. Necessary protective equipment shall be
available and, in the case of open flames or arcs, fire extinguishing apparatus shall be ready to
hand.
Welding and brazing shall be carried out by qualified workmen.
[1] INDOOR UNIT
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