System Description - Acura 2002 RSX Service Manual

System Description
The air conditioning system removes heat from the passenger compartment by circulating refrigerant through the
svstem as shown below.
EXPANSION VALVE
{Meters the required
amount of reJrigerant
/ -
CONDENSER
(Radiation of heat)
I
HtcH PRESsURE vAPoR
8ffiWl Low PRESsURE LrourD
-
Low PRESSUBE vAPoR
This vehicle uses HFC-134a (R-134a) refrigerant which does not contain chlorofluorocarbons. Pay attention to the
following service items;
. D o n o t m i x r e f r i g e r a n t s C F C - 1 2 ( B - 1 2 ) a n d H F C - 1 3 4 a ( R - 1 3 4 a ) . T h e y a r e n o t c o m p a t i b l e .
. U s e o n l y t h e r e c o m m e n d e d p o l y a l k y l e n e g l y c o l ( P A G ) r e f r i g e r a n t o i l ( K E I H I N S P - 1 0 )
d e s i g n e d f o r t h e R 1 3 4 a
compressor. Intermixing the recommended {PAG) refrigerant oil with any other refrigerant oil will result in
c o m p r e s s o r f a i l u r e .
. AllAy'C system parts (compressor, discharge line, suction line, evaporator, condenser, receiver/dryer, expansion
valve, O-rings for joints) have to be designed for refrigerant R 134a. Do not exchange with R-12 parts.
. Use a halogen gas leak detector designed for refrigerant R-134a.
. R-12 and R-134a refrigerant servicing equipment are not interchangeable. Use only a recovery/recycling/charging
s t a t i o n t h a t i s U . L . - l i s t e d a n d i s c e r t i f i e d t o m e e t t h e r e q u i r e m e n t s o f S A E J 2 2 1 0 t o s e r v i c e R - 1 3 4 a a i r c o n d i t i o n i n g
system.
. Always recover the refrige ra nt R- 1 34a with a n a pproved recove rylrecycling/cha rg ing station befo re d iscon nectang
any A,,/C fitting.
/
BLOWER FAN
\ \
\ \
\ z
I n t o t h e e v a
APORATOR TEMPERATURE
SENSOR
A/C PRESSURE SWITCH
When the refriqerant is below
'196 kPa (2.0 kgi/cm'.28 psi)
or above 3,140 kPa (32 kgflcm',
455 psi), the Ay'C pressure
switch opens the circuit to
the A,/C switch and stops the
air conditioning to protect the
compressor.
RECEIVER/DRYER
(Traps debris, and
removes motslure,
THERMAL PROTECTOR
(Opens the compressor clutch circuit
when the compressor temperature
becomes too high)
(Relieves pressure at the compressor
w h e n t h e p r e s s u r e i s t o o h i g h )
COMPRESSOR
(Suction and compression)
\-^
(cont'd)
21-11