Pressure Test For Vehicles With Expansion Valve And Fluid Reservoir (With Ac Compressor Regulated From The Inside) - Skoda Citigo 2012 Workshop Manual

Citigo 2012 ➤ , Fabia 2000 ➤ , Fabia II 2007 ➤ , Fabia II 2009 ➤ , Fab ...
Air conditioning system with refrigerant R134a - Edition 10.2014
Note
Over-filling with refrigerant oil can occur if, for example, the AC
♦
compressor was replaced without adapting the volume of re‐
frigerant oil.
In case too much refrigerant oil is present in the refrigerant
♦
circuit, the AC compressor must be emptied and the catch pan
with dessicator must be replaced. After the refrigerant circuit
was cleaned
⇒ "7 Removing contaminants from the refrigerant circuit", page
52 , fill the correct volume of refrigerant oil into the circuit.
9.5 Pressure test for vehicles with expan‐
sion valve and fluid reservoir (with AC
compressor regulated from the inside)
Note
Connect A/C service station
♦
⇒ "5 Working with the A/C service station", page 36
Observe test requirements
♦
⇒ "9.1 Test requirements before the pressure test", page 71
– Bring the engine speed to 2000 rpm.
– Observe the pressure gauge of the A/C service station.
Note
Switching pressures of the pressure switch for the air condi‐
♦
tioning system - F129- on the refrigerant circuit ⇒ Heating, Air
Conditioning; Rep. gr. 87 .
The pressures must be measured on the service connections,
♦
the fitting location of these connections is specifically designed
for vehicles.
Specified values
High-pressure side:
From the output pressure (when connecting the pressure gauge)
rising up to maximum 20 bar overpressure.
Low-pressure side:
From the output pressure (when connecting the pressure gauge)
dropping to diagram value.
A - High pressure in bar overpressure.
B - Low pressure in bar overpressure.
C - Permissible tolerance range.
78
Rep. gr.00 - Technical data
.