Toyota Celica Supra 1986 Service And Repair Manual page 735

AC·14
AIR CONDITIONING SYSTEM - Refrigeration System
(a) Close both high and low pressure valves completely
after the system is evacuated.
(b) Install refrigerant container tap valve as described in
step
2.
(c)
Open the high pressure valve fully, and
keep the
con·
tainer upside
down.
(d) Charge the system with more than one container
(400
g,
0.9
lb) than the specified amount. Then. close
the high pressure valve.
'---------- - --=""'= ' " :;
Specified amount:
660 - 760 g (1 .4 - 1.7 I
b)
NOTE:
• A fully charged system is indicated
by
the receiver sight
gla$$ being free of any bubbles.
• If the low pressure gauge does not show a reading. the
system is clogged and must be repaired.
6 . CHARGE EMPTY SYSTEM OR PARTIALLY CHARGED
SYSTEM (VAPOR)
NOTE:
• This step is to charge the system through the low pres·
sure side with refrigerant in a vapor state. When the re·
frigerant container Is placed rightside up, refrigerant
will enter the system as a vapor.
• Put the refrigerant container in a pan of warm
wJtet
(maximum temperature 40• c or 104.F) to keep
VIPOf
pressure in the container slightly higher than viPO<
pressure in the system.
(a) Install refrigerant container
tap
valve as described in
step
2.
(b) Open the low pressure valve. Adjust the valve
so
t~t
the
low pr0$$Ure gauge does not read
over
4 .2 kg/em'
(60 psi, 412 kPa).
(c) Run the engine at fast idle, and operate the air condi·
tioner.
CAUTION :
Be
sure to keep the container In the upright
L
__
..:::::::::::::::::=~:::==---2~
position to prevent liquid refrigerant being cherged Into
,..,., the system through the suction side, resulting in possible
damage to
the
compressor.
{d) Charge the system with more than one container
(400 g,
0.9
lb) than the specified amou nt. Then, close
the low pressure valve.
Specif'•chmount: 660 - 760g (1.4- 1.7 lb)
NOTE : A fully el\arged system is indicated
by
tho receiver
sight glass being free o f any bubbles.