Subaru Air Conditioning Systems
To connect the manifold gauge set to the system:
➊Fully close both of the manifold valves.
➋ Remove the compressor service valve caps.
➌ Connect the high and low pressure hoses to the service valves.
Note: Some refrigerant gas will be discharged as the hoses are connected to the service valves. This is normal, however, you should attempt to connect the hoses as quickly as possible to prevent excess refrigerant loss and air from entering the system.
Note: Start vehicle engine and follow the directions concerning idle speed, etc., contained in the appropriate model year Subaru Service Manual.
Note: Federal Law requires that all A/C service hoses be equipped with check valves at or near the service hose connections. These check valves prevent refrigerant in the hoses from escaping to the atmosphere.
To disconnect the gauge set from service valves:
➊Quickly disconnect the charging hoses from the service valves.
➋ Always disconnect the low side while the engine is running.
➌ Disconnect the high side with the engine OFF and after the pressure has stabilized.
Manifold gauge interpretation takes some practice and must be completed with consideration of the other symptoms and potential problems that have been identified in the system.
Precautions
➊Wear protective clothing and eyewear, do not allow skin to come in direct contact with refrigerant.
➋Do not store or allow refrigerant containers to exceed 52 degrees C. (126 degrees F.)
➌Do not use refrigerant in confined spaces with poor ventilation.
➍ Do not use
➎ Do not steam clean system.
➏ Do not drop refrigerant containers or otherwise cause the container
to rupture.
➐ Follow proper procedure while connecting/ disconnecting hoses of
manifold gauges, vacuum pump, oil separator, and charging systems.
➑ Open and close manifold gauge valves carefully.
➒ Exercise caution while working around drive belts, pulleys, and other
moving components of an operating air conditioning system.
➓ Ensure the proper level and type of compressor oil in system.
Note: Do not introduce compressed air into
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