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928
Air Conditioner
87
Safety regulations
for handling
the refrigerant
R12
The used refrigerante R12 is known as a
safety refrigerant. In other words, this refriger-
ant Is non-combustible,
non-explosive,
non-
toxic, non-irritating,
odorless and tasteless.
Nevertheless, you should observe the follow-
ing points:
1. Any contact wlth fluid or gaseous refriger-
ants must be avoided. Affected skin areas
must be treated llke frost injuries; wash off
immediately
wlth cold water and then con-
sult a physician. Protective goggles must be
worn to protect the eyes. If refrigerant
should nevertheless enter the eye, consult a
physician immediately.
Rubber gloves must
be worn to protect hands.
4. Refrigerant bottles must not be thrown and
must not be exposed to the sun or other
heat sources for a long period in filled condi-
tion. The maximum permissible
temperature
of a filled refrigerant bottle must not exceed
45 "c.
2. When performing
repairs on the air-condi-
tioning system, the refrigerant must be syp
honed off from the system and the refriger-
ant cleaned. Refrigerant must not be al-
lowed to enter the environment,
because t
attacks the earth's ozone layer.
3. Welding must not be performed on parts of
the closed air-conditioning
system or close
to it under any circumstances.
Irrespective
of whether the system is filled with refriger-
ant or not, a very high pressure is produced
by heating which can lead to damage to the
system or even to an explosion.
R 12 is
completely
non-toxic at normal tempera-
tures, but decomposes
into hydrogen
chloride and fluorocarbon.
These decom-
position products contain, among other
things, chlorine and phosgene. Correspond-
ing care must be taken because these pro-
ducts are damaging to health.
Safety regulations
for handling
the refrigerant
RI2
Printed in Germany - XW, 1990
97 - 3
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