Performance Diagnosis; Performance Diagnosis Condition - Suzuki Ignis Service Manual

1B-10 AIR CONDITIONING (OPTIONAL)

PERFORMANCE DIAGNOSIS

1) Confirm that vehicle and environmental conditions are as fol-
lows.
• Vehicle is not exposed to direct sun.
• Ambient temperature is within 15 – 35°C (59 – 95°F).
2) Make sure that high pressure valve (1) and low pressure
valve (2) of manifold gauge set (3) are firmly closed.
3) Connect high pressure charging hose (4) to high pressure
service valve (5), and connect low pressure charging hose
(6) to low pressure service valve (7).
4) Bleed the air in charging hoses (4), (6) by loosening their
respective nuts on manifold gauge set (3), utilizing the refrig-
erant pressure. When a hissing sound 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 (engine
coolant temperature at 80 – 90°C (176 – 194°F)) and keep it
at specified idle speed. (Radiator cooling fan should not be
working when checking pressure and temperature.)
6) Turn A/C switch to ON position, and set blower fan switch at
"H" (4th position), temperature dial at "COOL", air outlet con-
trol dial at "FACE" and fresh/recirculation control dial at
"RECIRCULATION". (Confirm that A/C compressor and radi-
ator/condenser cooling fan are working.)
Keep all windows, doors and engine food open.

Performance diagnosis condition

Ambient temperature
Engine rpm
Blower fan switch
Temperature control
Air outlet control
Vehicle Doors
Air inlet door position
7) With dry bulb thermometer (1) inserted into center duct air
outlet and another one set near evaporator air inlet, read
temperature indicated on each thermometer.
15 – 35°C (59 – 95°F)
Keep to 1,500 rpm.
"H" (4th position)
"Cool"
"Face"
All open
Recirculation