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Home >> Volkswagen >> 2018 >> Beetle S, 2D Hatchback >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 6 (General, Technical Data (Refrigerant R134A General Information) (Convertible)) >> 00 General, Technical Data >> A/C System, General Information >> Refrigerant R134A Characteristics >> Water Content

Water Content

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Only very small amounts of water are soluble in liquid refrigerant. On the other hand, refrigerant vapor and water vapor mix in any ratio.

A small drop of water may get carried into the refrigerant circuit. The dryer, desiccant bag or dryer cartridge contained in the receiver/dryer or reservoir can absorb approximately 7 grams of water. They are then saturated and cannot absorb any more water. If water is still present in the refrigerant circuit, it flows up to the expansion valve nozzle or restrictor and becomes ice.

The air conditioning system stops cooling.

Water destroys the A/C system, because it forms acids when combined with other contaminants at high pressures and temperatures.

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