audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Hose/Line HVAC > < Removing and Installing|Page 9691
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High Pressure Safety Valve HVAC: Description and Operation

Pressure Relief Valve

The pressure relief valve is mounted on the compressor. At approx. 38 bar (551 psi), the valve opens to vent excessive pressure. When system pressure
is reduced to approx. 30-35 bar (435-508 psi), the valve closes to prevent total refrigerant loss.

Hose/Line HVAC > < Removing and Installing|Page 9691