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FOREWORD
8.
Precautions for disconnecting and connect-
ing hoses and tubes in air conditioner cir-
cuit
1)
Disconnection
k
For the environment, the air condi-
tioner of this machine uses the re-
frigerant (air conditioner gas: R134a)
which has fewer factors of the deple-
tion of the ozone layer. However, it
does not mean that you may dis-
charge the refrigerant into the at-
mosphere as it is. Be sure to recover
the refrigerant when disconnecting
the refrigerant gas circuit and then
reuse it.
★ Ask professional traders for collecting
and filling operation of refrigerant
(R134a).
★ Never release the refrigerant (R134a) to
the atmosphere.
k
If the refrigerant gas gets in your
eyes or contacts your skin, you may
lose your sight and your skin may be
frozen. Accordingly, put on safety
glasses, safety gloves and safety
clothes when recovering or adding
the refrigerant.
Refrigerant gas must be recovered
and added by a qualified person.
2)
Connection
1]
When installing the air conditioner cir-
cuit hoses and tubes, take care that
dirt, dust, water, etc. will not enter
them.
2]
When connecting the air conditioner
hoses and tubes, check that O-rings
(1) are fitted to their joints.
3]
Check that each O-ring is not dam-
aged or deteriorated.
4]
When connecting the refrigerant pip-
ing, apply compressor oil for refriger-
a n t ( R 1 3 4 a ) ( D E N S O : N D - O I L 8 ,
VA L E O T H E R M A L S Y S T E M S :
ZXL100PG (equivalent to PAG46)) to
its O-rings.
PC200/220(LC)-7
★ Example of O-ring (Fitted to every joint of hoses
and tubes)
★ For tightening torque, see the precautions for in-
stallation in each section of "Disassembly and
assembly".
SAFETY NOTICE
00-7
(14)
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