General Instructions For Refrigerant Circuit - Skoda Citigo 2012 Workshop Manual

2.1.1 Distribution of the components of the re‐
frigerant circuit and their influence on
the high- and low-pressure side
On the high-pressure side, the condenser as well as the fluid res‐
ervoir are present and as a separation from the HP liquid side and
the LP liquid side, the throttle or the expansion valve is present.
The high pressure arises from the fact that the throttle valve or
the expansion forms a constriction and the refrigerant dams, this
leads to a pressure and temperature increase.
Too much high pressure arises if too much refrigerant or refrig‐
erant oil is poured in, the condenser is dirty, the radiator fan is
defective, a blockage is present in the system or if humidity is in
the refrigerant circuit (icing of the throttle or the expansion valve).
On the low-pressure side are located, the evaporator, the tem‐
perature sensor - evaporator and as a separation from the HP gas
side and the LP gas side, the AC compressor.
A pressure drop in the system can occur through refrigerant loss,
through the throttle or expansion valve (constriction not given),
the AC compressor which is defective or the evaporator which is
iced up.
Citigo 2012 ➤ , Fabia 2000 ➤ , Fabia II 2007 ➤ , Fabia II 2009 ➤ , Fab ...
Air conditioning system with refrigerant R134a - Edition 10.2014

2. General instructions for refrigerant circuit

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