Workshop Manuals Factory service & repair Land Rover
01 Range Rover Workshop Manual02 Range Rover Workshop Manual - Volume 103 04 05 06 01 - INTRODUCTION07 08 09 04 - GENERAL SPECIFICATION DATA10 11 12 05 - ENGINE TUNING DATA13 14 15 16 06 - TORQUE VALUES17 18 19 20 07 - GENERAL FITTING REMINDERS21 22 23 24 09 - LUBRICANTS, FLUIDS AND CAPACITIES25 26 27 28 29 10 - MAINTENANCE30 31 32 33 34 35 12 - ENGINE - BMW DIESEL36 37 38 39 12 - ENGINE - LAND ROVER V840 41 42 43 17 - EMISSION CONTROL44 45 46 47 19 - FUEL SYSTEM - BMW DIESEL48 49 50 19 - FUEL SYSTEM - LAND ROVER V851 52 53 54 19 - FUEL SYSTEM - CRUISE CONTROL55 56 57 58 26 - COOLING SYSTEM - BMW DIESEL59 60 61 62 26 - COOLING SYSTEM - LAND ROVER V863 64 65 66 30 - MANIFOLD AND EXHAUST SYSTEM67 68 69 70 33 - CLUTCH71 72 73 37 - MANUAL GEARBOX - R380 GEARBOX74 75 76 Range Rover Workshop Manual - Volume 277 78 79 80 41 - TRANSFER BOX81 82 83 84 85 86 87 44 - AUTOMATIC GEARBOX - ZF AUTO88 89 90 91 47 - PROPELLER SHAFTS92 93 94 51 - REAR AXLE AND FINAL DRIVE95 96 97 54 - FRONT AXLE AND FINAL DRIVE98 99 100 101 57 - STEERING102 103 104 105 60 - FRONT SUSPENSION - ELECTRONIC AIR SUSPENSION106 107 108 109 110 64 - REAR SUSPENSION - ELECTRONIC AIR SUSPENSION111 112 113 114 70 - BRAKES - ABS115 116 117 75 - SUPPLEMENTARY RESTRAINT SYSTEM118 119 120 121 122 123 76 - CHASSIS AND BODY124 125 126 127 128 129 77 - PANEL REPAIRS130 131 132 133 78 - SEATS134 135 136 137 80 - HEATING AND VENTILATION138 139 140 141 82 - AIR CONDITIONING142 143 144 145 84 - WIPERS AND WASHERS146 147 148 86 - ELECTRICAL149 150 151 152 153 154 87 - NAVIGATION SYSTEM155 156 157 158 159 88 - INSTRUMENTS
Land Rover Range Rover P38141 · 82 - AIR CONDITIONING
141 · Heating & A/C

AIR CONDITIONING SYSTEM - PERFORMANCE TEST

Make
Land Rover
Model
Range Rover P38
Section
ADJUSTMENT › AIR CONDITIONING SYSTEM - PERFORMANCE TEST
82 - AIR CONDITIONINGAIR CONDITIONING SYSTEM - PERFORMANCE TEST
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82

AIR CONDITIONING

NEW RANGE ROVER

6

ADJUSTMENT

AIR CONDITIONING SYSTEM - PERFORMANCE
TEST

WARNING: R134a is hazardous.

See this

section.

Carry out this test with bonnet and doors or windows
open, air conditioning switched on, temperature
control set to cold and blower at maximum speed. Set
the air supply control to supply fresh air.

1. Close low pressure valve on refrigerant station.
2. Close high pressure valve on refrigerant station.
3. Connect a Refrigerant Station to the high and

low pressure servicing connections.

4. Insert dry bulb thermometer into cold air outlet

and position dry and wet bulb thermometer close
to outside air inlet.
Do not spill water from the wet thermometer
(psychrometer).

5. Start engine and run it at 1500 rev/min for 10

minutes with air conditioning switched on.

6. Read both pressure gauges and thermometers.

Check readings against table below with
humidity between 60% and 80%. If readings are
incorrect.

See Fault diagnosis.

7. Switch off air conditioning, stop engine,

disconnect test equipment.

Performance range

Intake temperature

Outlet temperature

Low pressure

High pressure

20 - 24

°

C

4 - 10

°

C

18 - 28 lbf/in

2

213 - 299 lbf/in

2

1.2 - 1.9 bar

14.7 - 20.6 bar

25 - 29

°

C

9 - 19

°

C

27 - 37 lbf/in

2

256 - 341 lbf/in

2

1.9 - 2.6 bar

17.6 - 23.5 bar

30 - 35

°

C

20 - 27

°

C

33 - 47 lbf/in

2

299 - 384 lbf/in

2

2.3 - 3.2 bar

20.6 - 26.5 bar

Table 1

Ambient

Compound Gauge

High Pressure

Temperature

Readings

Gauge Readings

°

C

°

F

bar

lbf/in

2

bar

lbf/in

2

16

60

1,03-1,4

15-20

6,9-10,3

100-150

26,7

80

1,4-1,72

20-25

9,6-13,1

140-190

38

100

1,72-2,1

25-30

12,4-15,5

180-225

43,5

110

2,1-2,4

30-35

14,8-17,2

215-250

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