Air conditioning system GREAT WALL SAILOR 2006 Owner's Manual

AC-17Air-Conditioning System
Refrigeration Device
evaporator housing
Dr SF
SL SK SY SJ
evaporator housing
residual liquid pipe
heat-sensitive
resistance
pressure switch
evaporator core
expansion valve
heat-sensitive
resistanceevaporator upper
housingevaporator core
evaporator lower
housingexpansion valve HPpressure rubber
LPpressure rubber
HP/LP pressure rubber

AC-18Air-Conditioning System
Evaporator
SYrear evaporator
upper housing
air cover
lower housing temperature controller air blowerevaporator core air pipeheat-sensitive resistance
1. Tear down the evaporator housing:
(a) Disconnect the plugging element;
(b) Tear down the two clipes;
(c) Tear down the four screws;
(d) Tear down the upper cluster housing;
(e) Tear down the HP/LP pressure pipe rubber washers; and
(f) Tear down the lower cluster housing.
2. Tear down the expansion valve:
(a) Tear down the liquid pipe from the entrance joint of
expansion valve;
(b) Tear down the sealing washer and thermal bulb from the
suction pipe of evaporator;
(c) Tear down the expansion valve.
expansion valve
HP pipe LP pipe

AC-19Air-Conditioning System
Refrigeration Device
inspectionofevaporator
1. Check the radiating ribs of evaporator to see whether there is
block.
If the radiating rib is blocked, clean it with the compressed air.
Notice: do not wash the evaporator with water.
2. Check the joint to see whether there is crack or scrape.
Make reparation as requirement.
Mount the evaporator parts:
(a) Connect the expansion valve to the entrance joint of evaporator
and screw up the nuts.
Remark: Carefulness should be put on the O-ring seal.
(b) Mount the bracket on the suction pipe with thermal sensor;
(c) Connect the liquid pipe to the entrance joint of expansion
valve and screw up nuts.
(d) Mount the lower cluster housing on evaporator.
(e) Mount the upper cluster housing;
(f) Mount the four screws;
(g) Mount the two clipes;
(h) Mount the HP/LP pressure rubber washer; and
(i) Connect the plugging elements;
1. Mount the refrigeration device.
Mount the refrigeration device with three nuts.
2. Connect the plugging elements;
3. Mount the right glove box (SY rear air-conditioner: mount the
interior trim panel at left rear side).
4. Mount the insulation ring on the inlet and outlet joints;
5. Connect the liquid pipe to the outlet joint of refrigeration device;
Tightening moment
(see page AC-8)
6. Connect the suction pipe to the outlet joint of refrigeration pipe;
Tightening moment
(see page AC-8)
7. Connect the cathode lead to the storage cell.
8. Vacuumize the air-conditioning system:
Vacuumizing time:
Dr SL SK SF SJ
vacuumize for 20min and maintain the
pressure for 30min
SY: vacuumize for 30min and maintain the pressure for
another 30min.
9. Inflate the refrigerant in the air-conditioning system and
check to see whether there is air leakage;
Refrigerant quantity:
Dr
(600-650)g
SL
700
0g
SK SJ
560
0g
SF
(700-720)g
SY
850
0g
expansion valveHP pipe LP pipe

AC-20Air-Conditioning System
Refrigerant Pipe
Refrigerant pipe
On-vehicle inspection
1. Check the pipelines of each part to see whether there is
leakage:
Make the inspection with the gas leakage detector and, if
necessary, change them.
2. Check the clamping parts of the pipelines to see whether
there is looseness;
Make a new fastening or change as requirement.
Change of refrigerant pipeline
1. Exhaust the refrigerant;
2. Change the damaged pipe or hose
Remark: the opened joint should be sealed right away with
cork so as to prevent the humid from entering into the system.
3. Screw up the O-ring seal joint and threaded joint according
to the Tightening moment;
4. Vacuumize the air-conditioning system:
Vacuumizing time:
Dr SL SK SF SJ
Vacuumize for 20min and main-
tain the pressure for 30min;
SY
Vacuumize for 30min and maintain the pres-
sure for another 30min.
5. Inflate the refrigerant in the air-conditioning system and
check the system to see whether there is air leakage;
Refrigerant quantity:
Dr
(600-650)g
SL
700
0g
SK/SJ
560
0g
SF
(700-720)g
SY
850
0g