Daikin FTXM-K Series Service Manual page 8

Safety Cautions
Use the welder in a well-ventilated place.
Using the welder in an enclosed room may cause oxygen deficiency.
Before beginning work, conduct safety checks to minimise the risk of ignition. When repairing
the refrigerating system, take the following precautions before work.
Work shall be conducted under a controlled procedure so as to minimise the risk of working in
the presence of R-32 or vapour.
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 materials.
The working area shall be checked with an appropriate refrigerant detector before 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 R-32, i.e. non-
sparking, adequately sealed or intrinsically safe.
If any hot work is to be conducted on the refrigeration equipment or any associated parts,
appropriate fire extinguishing equipment shall be made available at hand. Prepare a dry powder
or CO
During work on a refrigeration system which involves exposing any piping work that contains or
has contained R-32, any sources of ignition shall not be used in a manner that may lead to the
risk of fire or explosion. All possible ignition sources, including cigarette smoking, should be
kept at a safe distance from the site of installation, repairing, or removing space. Before starting
work, the area around the equipment shall be examined to make sure that there are no
flammable hazard or ignition risks. No Smoking signs shall be displayed.
Ensure that the working area is open or that it is adequately ventilated before work.
Adequate ventilation shall be maintained during the entire period of work.
The ventilation should disperse any released refrigerant and preferably discharge it into the
external atmosphere.
vii
Checking the area
Work procedure
General working area
Checking for presence of refrigerant
Fire extinguishing equipment
fire extinguisher adjacent to the working area.
2
No ignition sources
Ventilated area
Caution
SiBE041434E