Toyota Camry Manual page 2

AC–2
AIR CONDITIONING SYSTEM
GENERAL DESCRIPTION
NEW AIR CONDITIONING SYSTEM WITH
R134a
Refrigerant R12 (CFC12), previously used in automo–
biles air conditioning systems is believed to contribute
towards the depletion the earth's ozone layer. The
ozone layer help to protect us against the harmful
ultraviolet rays of the sun.
A newly developed refrigerant, R134 a (HFC 134 a),
does not the destroy the ozone layer.
PRECAUTIONS FOR SERVICING R134a AIR
CONDITIONERS
1. USE OF NEW REFRIGERANT R134a
The very different characteristics of refrigerants
R134a and R12 have determined the design of their
respective air conditioning systems. Under no circum–
stances allow R12 to enter an R134a system, or vice
versa, because serious damage could occur.
2. USE OF PROPER COMPRESSOR OIL
Compressor oil used in conventional R12 air condi–
tioning systems cannot be used in R 134a air condi–
tioning systems.
Always use genuine Toyota R1 34a air conditioning oil
N D – OIL 8, made expressly for use with R 1 34a.
If even a small amount of the wrong oil is changed, it
will result in clouding of the refrigerant.
A large amount will cause the compressor to seize up.
– GENERAL DESCRIPTION