Suzuki WagonR+ RB310 Service Manual page 2086

DIAGNOSIS TEST
1) Confirm that vehicle and environmental conditions are as follows.
– Vehicle is not exposed to direct sun.
– Ambient temperature is within 15_C – 35_C (59_F – 95_F).
2) Make sure that high pressure valve (1) and low pressure valve
(2) of manifold gauge are firmly closed.
3) Connect high pressure charging hose (3) to high pressure ser-
vice valve (5) on vehicle, and connect low pressure charging
hose (4) to low pressure service valve (6) on vehicle.
4) Bleed the air in charging hoses (3), (4) by loosening their respec-
tive nuts on manifold gauge, utilizing the refrigerant pressure.
When a hiss is heard, immediately tighten nut.
CAUTION:
Do not interchange high and low pressure charging
hoses by mistake.
5) Warm up engine to normal operating temperature and keep it at
specified idle speed.
6) Turn A/C switch ON, and set blower switch at "HI", temperature
control knob at "COOL", mode control knob at "FACE", fresh/cir-
culation control lever at "CIRCULATION". (Confirm that A/C
compressor and condenser fan are working.)
7) Keep all windows, doors and engine hood open.
A/C inlet air temperature
Engine rpm
Blower switch
Temperature control
Doors
Air inlet damper position
8) With about 20 mm (0.8 in.) of dry bulb thermometer inserted into
center duct air outlet and another one set near evaporator air in-
let, read temperature indicated on each thermomenter.
AIR CONDITIONING (OPTIONAL) 1B-7
15 – 35_C (59 – 95_F)
Keep 1500 rpm
Max.
Max. cold
All open
Recirculation