Refrigerant
21.10.2015
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Copyright
2014 by: WATERKOTTE GmbH. Subject to changes.
8
Refrigerant
8.1
Requirements on handling of R410A refrigerant
Ensure that work on air conditioning equipment is only performed by quali-
fied persons. Qualified persons are those who can show that they have
completed technical / vocational training in connection with an approved
advanced training course according to the Ozone Layer Regulation. Com-
pleted training of air conditioning systems or air conditioning technology is
also considered proof of qualification. Ensure that inspections on refrigera-
tion equipment, which require contact with the refrigeration circuit, are only
performed by trained operating personnel. Instructions must be provided by
qualified persons (these regulations can vary within the EC, hence follow the
laws and regulations of the respective country).
8.2
Safety guidelines for the handling of refrigerants
The following safety guidelines must be observed:
Always wear protective goggles and protective gloves!
At normal atmospheric pressure and ambient temperatures, liquid re-
frigerant evaporates so rapidly that it may cause tissue freezing (risk of
going blind) in case of skin /eye contact.
Should the refrigerant contact the skin, flush the affected area repeated-
ly with plenty of cold water. Do not rub the eyes! Visit a doctor immedia-
tely!
Ensure proper ventilation of workplace when working on refrigerant cir-
cuit. Inhaling high concentrations of gaseous refrigerants may cause diz-
ziness and suffocation sensations.
Never perform work on refrigerant circuits in work pits. The gaseous re-
frigerant is heavier than air. Thus, a high concentration could accumulate
in the pit.
Do not smoke! Burning cigarettes can cause the refrigerant to decom-
pose into toxic substances.
Keep refrigerant away from open flames / hot metal. Poisonous gases
could be released.
Never vent refrigerants into the atmosphere. As soon as you open the
refrigerant container / the air conditioning system, the content escapes
at high pressure. Pressure level depends on temperature. The higher the
temperature, the higher the pressure.
Avoid exposure of system components to heat. Otherwise, drain module
first.
When removing the service hoses, do not point connections toward
yourself. Residual refrigerant could escape.
Never change factory setting of adjustment screw on expansion valve.
