Quest V6-3.5L (VQ35DE) (2009)
Service Port HVAC: Service Precautions
PRECAUTIONS
Precaution for Refrigerant Connection
A new type refrigerant connection has been introduced to all refrigerant lines except the following locations.
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Expansion valve to cooling unit
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Evaporator pipes to evaporator (inside cooling unit)
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Refrigerant pressure sensor
FEATURES OF NEW TYPE REFRIGERANT CONNECTION
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The O-ring has been relocated. It has also been provided with a groove for proper installation. This reduces the possibility of the O-ring being
caught in, or damaged by, the mating part. The sealing direction of the O-ring is now set vertically in relation to the contacting surface of the
mating part to improve sealing characteristics.
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The reaction force of the O-ring will not occur in the direction that causes the joint to pull out, thereby facilitating piping connections.
O-RING AND REFRIGERANT CONNECTION
Front A/C Compressor and Condenser