SHOP MANUAL
GENERAL INSTRUCTIONS
Ch 0 page 20
Refrigerants are used in various thermal equipment e.g. air
conditioning in vehicles.
Risks
Refrigeration equipment operates under pressure. A refriger-
ant that is leaking may cause frost-bite.
A refrigerant that is leaking and exposed to heat e.g. by a
welding flame or cigarette becomes very dangerous to breath.
Protective measures
Always use special equipment when draining or filling refrig-
eration equipment. This reduces the risk of leakage.
Do not loosen connections on refrigeration equipment without
first draining the system or reducing the pressure.
Avoid welding and smoking when carrying out work that im-
plies a risk of leakage. A leaking refrigerant is not noticed as
the gas is practically odourless. The gas is heavier than air and
therefore a portable air evacuator at floor level is suitable.
Protection against refrigerant
• Use special equipment for draining and filling
• Drain system before loosening connections
• Avoid smoking and naked flame
• Use portable air ventilator
Refrigerant
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