PRECAUTIONSATC-5
< SERVICE INFORMATION >
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Never release refrigerant into the air. Use appr oved recovery/recycling equipment to capture the
refrigerant every time an air co nditioning system is discharged.
Always wear eye and hand protection (goggles and gloves) when working with any refrigerant or air
conditioning system.
Never store or heat refrigerant containers above 52 °C (126 °F).
Never heat a refrigerant container with an open flame; if container warming is required, place the
bottom of the container in a warm pail of water.
Never intentionally drop, puncture, or incinerate refrigerant containers.
Keep refrigerant away from open flames: poison ous gas will be produced if refrigerant burns.
Refrigerant will displace oxygen, therefore be certa in to work in well ventilated areas to prevent suf-
focation.
Never pressure test or leak test HFC-134a (R-134a) service equipment and/or vehicle air conditioning
systems with compressed air during repair. Some mixtures of air and HFC-134a (R-134a) have been
shown to be combustible at elevat ed pressures. These mixtures, if ig nited, may cause injury or prop-
erty damage. Additional health a nd safety information may be obtain ed from refrigerant manufactur-
ers.
Precaution for Refrigerant ConnectionINFOID:0000000001328155
A new type refrigerant connection has been introduced to a ll refrigerant lines except the following location.
Expansion valve to evaporator
Refrigerant pressure sensor to condenser
ABOUT ONE-TOUCH JOINT
Description
One-touch joints are pipe joints which do not require tools during piping connection.
Unlike conventional connection methods using union nuts and flanges, controlling tightening torque at con-
nection point is not necessary.
When removing a pipe joint, use a disconnector.
COMPONENT PARTS
FUNCTIONS OF COMPONENT PARTS
NOTE:
1 Pipe (Male-side) Retains O-rings.
Retains garter spring in cage (A).
2 Garter spring Anchors female-side piping.
3 Indicator ring When connection is made properly, this is ejected from male-side piping. (This part is no longer nec-
essary after connection.)
4 O-ring Seals connection point. (Not reusable)
5 Pipe (Female-side) Seals connection by compressing O-rings.
Anchors piping connection using flare (B) and garter spring.
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REFRIGERANT LINESATC-137
< SERVICE INFORMATION >
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After piping connection is comple ted, pull male-side piping by hand to make sure that connection
does not come loose.
When recharging refrigerant, check for leaks.
Removal and Installation of Refrigerant Pressure SensorINFOID:0000000001328228
REMOVAL
1. Remove condenser. Refer to ATC-135, "Removal and Installation of Condenser".
2. Remove refrigerant pressure sensor from condenser. CAUTION:
When working, be careful no t to damage the condenser.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Apply compressor oil to O-ring of refrig erant pressure sensor when installing it.
Removal and Installation of EvaporatorINFOID:0000000001328229
REMOVAL
1. Remove low-pressure pipe 2 and high-pressure pipe 3. Refer to ATC-133, "Removal and Installation of
Low-Pressure Pipe 2 and High-pressure Pipe 3".
CAUTION:
Cap or wrap the joint of evaporator, low-pressure pipe 2 and high-pressure pipe 3 with suitable
material such as vinyl tape to avoid the entry of air.
2. Slide evaporator, and then remove it from heater & cooling unit assembly.
3. Remove intake sensor from evaporator, and then remove evap- orator.
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
Replace O-rings of low-pressure pipe 2 and high- pressure pipe 3 with new ones, and then apply
compressor oil to it when installing it.
Female-side piping c onnection is thin and easy to deform. Slowly insert the male-side piping
straight in axial direction.
Insert piping securely until a click is heard.
After piping connection is comple ted, pull male-side piping by hand to make sure that connection
does not come loose. High-pressure flexible hose bracket mounting bolt
: 5.5 N·m (0.56 kg-m, 49 in-lb)
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