air filter AUDI A4 1995 B5 / 1.G Refrigerant System Components Workshop Manual

87-28

Restrictor


The restrictor restricts and controls refrigerant flow to the evaporator thus
lowering refrigerant temperature and pressure.
Upstream of the restrictor, the refrigerant is hot and under high pressure.
Downstream of the restrictor, the refrigerant is cold and under low
pressure.
A strainer located upstream of the restrictor filters out any dirt or particles.
Another strainer located downstream of the restrictor atomizes the
refrigerant before it enters the evaporator.
Notes:
Insert restrictor so that Arrow -A- points to evaporator.Illustration shows the evaporator from an Audi 90 model.
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