Refrigerant Lines
WARNING: This page is about a different car, the 2020 Jaguar XE and 2019 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
To maintain similar flow velocities around the A/C system the diameter of the refrigerant lines varies to suit the two pressure/temperature regimes. Larger diameter pipes are installed in the low pressure/temperature regime and smaller diameter pipes are installed in the high pressure/temperature regime.
Nylon lined, low permeability rubber hoses are used in the low pressure line into the A/C compressor, and in the high pressure line from the condensor. The remainder of the refrigerant lines are manufactured from aluminum.
Low and high pressure charging connections are incorporated into the refrigerant lines for system servicing.