Dacia Solenza 2004, Repair Manual

Page: 488 / 891

62
AIR CONDITIONING
62- 14
Pressure controller
LOCATION
Pressure controller (1) is located on the high-
pressure pipe, near the dryer reservoir.
FUNCTION
The pressure controller is permanently
informing UCE (electronic control unit) about
the circuit pressure.
Subject to pressure value in the high-
pressure circuit, UCE is commanding:
-
circuit break ( by uncoupling the compressor
clutch) when the pressure in the circuit is
decreasing under
1,96 + /-0,2 bar and clutch
coupling when the pressure is over
2,16
+/-
0,2 bar;
-
circuit break when the pressure in the circuit
is over
31,4
+/- 2 bar and compressor clutch
coupling when the pressure is decreasing under
25,5
+/- 2 bar;
- engine fan starting on second speed, when
the pressure is over
17,7
+/- 1 bar and engine
fan stopping when the pressure is decreasing
under
13.7
+/- 1 bar.
REPLACEMENT
The pressure controller replacement does
not imply the draining of the refrigerant circuit.
Disconnect the pressure controller
connector.
Replace the pressure controller.
When mounting, lubricate the pressure
controller sealing gasket with oil PAG SP 10 .
T ighten the pressure controller to the required
moment of
0,9 +/- 0,1 daNm.
Check for refrigerant fluid leaks.
1
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