1995 LAND ROVER DISCOVERY engine

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Page 753 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual AIR CONDITIONING
3
DESCRIPTION AND OPERATION AIR CONDITIONING SYSTEM OPERATION
The air conditioning system provides the means of
supplying cooled and dehumidified, fresh or
recirculated air to the int

Page 754 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual 82AIR CONDITIONING
4
DESCRIPTION AND OPERATION 5. Evaporator
As this change of state occurs, a large amount of
latent heat is absorbed. The evaporator is therefore
cooled and as a result heat is extra

Page 755 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual AIR CONDITIONING
5
DESCRIPTION AND OPERATION Condenser cooling fans
The condenser cooling fans operate automatically
whenever the air conditioning system is switched on.
Fan timer unit
The thermostati

Page 759 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual 82AIR CONDITIONING
4
FAULT DIAGNOSISFAULT CAUSE REMEDY
E.
NOISY
EXPANSION
VALVE
(steady hissing)1. Low refrigerant charge; evident by
bubbles in sight glass.1. Leak test. Repair or replace
components

Page 763 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual 82AIR CONDITIONING
4
ADJUSTMENT Evacuation and recharging
1.Add refrigerant oil to compressor if necessary.
2.Renew the receiver/drier.
CAUTION: When a major repair has been
carried out, a leak test s

Page 764 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual AIR CONDITIONING
5
ADJUSTMENT AIR CONDITIONING SYSTEM - PERFORMANCE
TEST
WARNING: R134a is hazardous, refer to
the GENERAL PRECAUTIONS given at the
beginning of this section.
Carry out this test with

Page 765 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual 82AIR CONDITIONING
6
ADJUSTMENT SYSTEM TEST
1.Place the vehicle in a ventilated, shaded area
free from excessive draught, with the doors and
windows open.
2.Check that the surface of the condenser is

Page 770 of 873

LAND ROVER DISCOVERY 1995  Workshop Manual AIR CONDITIONING
5
REPAIR COMPRESSOR
Service repair no - 82.10.20
Remove
1.Disconnect battery negative lead.
2.Recover refrigerant from air conditioning system.
See Adjustment, Refrigerant Recovery
Re