Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Sienna 1998-2003 Approved FSM 21 acsy char
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AC-10
AIR CONDITIONING - AIR CONDITIONING SYSTEM
AC20X-02
CHARGING
1. INSTALL CHARGING CYLINDER
HINT:
Push When handling the charging cylinder, always follow the direc-
Air tions given in the instruction manual.
(a) Charge proper amount of refrigerant into the charging cyl-
inder.
Low Pressure (b) Connect the center hose to the charging cylinder.
Service Valve CAUTION:
Do not open both high and low pressure hand valves of
manifold gauge set.
(c) Open the valve of charging cylinder.
(d) Press the valve core on the side of manifold gauge and
expel the air inside of the center hose.
High Pressure
Service Valve
Charging Cylinder
N13793
2. INSPECT REFRIGERATION SYSTEM FOR LEAKS
(a) Open the high pressure hand valve and charge refriger-
ant.
(b) When the low pressure gauge indicates 98 kPa
(1 kgf/cm2, 14 psi), close the high pressure hand valve.
(c) Using a gas leak detector, check the system for leakage.
(d) If leak is found, repair the faulty component or connection.
CAUTION:
Use the refrigerant recovery/ recycling machine to recover
the refrigerant whenever replacing parts.
Gas Leak
Detector
N13792
2001 SIENNA (RM787U)
Author : Date : 1851
AC-1 1
AIR CONDITIONING - AIR CONDITIONING SYSTEM
3. CHARGE REFRIGERANT INTO REFRIGERANT SYS-
TEM
If there is no leak after refrigerant leak check, charge the proper
amount of refrigerant into refrigeration system.
CAUTION:
S Never run the engine when charging system through
the high pressure side.
S Do not open the low pressure hand valve when the
Low Pressure system is being charged with liquid refrigerant.
Service Valve (a) Open the high pressure and valve fully.
(b) Charge specified amount of refrigerant, then close the
high pressure hand valve.
HINT:
A fully charged system is indicated by the sight glass being free
of any bubbles.
High Pressure
(c) Charge partially refrigeration system with refrigerant.
Service Valve (1) Set vehicle in these conditions:
S Running engine at 1,500 rpm
N13790 S Blower speed control set at "HI"
S Temperature control set at "MAX. COOL"
S Air inlet control set at "RECIRC"
S Fully open doors (Sliding roof: closed)
(2) Open the low pressure hand valve.
CAUTION:
Do not open the high pressure hand valve.
(d) Charge refrigerant unit bubbles disappear and check the
pressure on the gauge through the sight glass.
Properly
Charged
Insufficiently
Charged
I07096
2001 SIENNA (RM787U)
Author : Date : 1852
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