Suzuki Swift Sport 2004 Service & Repair Manual page 959

5) Warm up engine to the normal operating
temperature and keep it at the specified idle speed.
6) Turn A/C switch ON, set blower speed selector at
maximum speed position, temperature selector at
maximum cold position, airflow selector at face
position, and air intake switch at recirculation
position. (Confirm that A/C compressor and
condenser fans are working.)
7) Wait for ten minutes to stabilize the A/C operation.
8) Open front windows, front doors and engine hood.
9) With about 20 mm (0.8 in.) of dry bulb thermometer
(1) put right in front of center ventilation louver and a
wet and dry bulb thermometer (2) near air inlet of
HVAC unit.
1
2
I4RS0B720004-01
Air Conditioning System: Manual Type 7B-11
10) Check for each pressure of low side and high side if
it is within shaded range of graph. If each gauge
reading is out of specified pressure, correct defective
part referring to the following table.
NOTE
Pressure registered on gauge varies with
ambient temperature. Therefore, use the
graphs when determining if pressures are
normal or not.
Low side and high side pressure example,
Gauges should read as follows when ambient
temperature is 30 °C (86 °F)
Pressure on high pressure gauge (HI): 1590 –
1940 kPa (15.9 – 19.4 kg/cm
Pressure on low pressure gauge (LO): 270 – 430
kPa (2.7 – 4.3 kg/cm
2
psi kPa kg/cm
327.1 2300 23
312.9 2200 22
298.7 2100 21
284.4 2000 20
270.2 1900 19
256.0 1800 18
[A]
241.7 1700 17
227.5 1600 16
213.3 1500 15
199.1 1400 14
184.9 1300 13
170.6 1200 12
151.4 1100 11
142.2 1000 10
128.0 900 9
113.8 800 8
99.5 700 7
85.3 600 6
71.1 500 5
56.9 400 4
[B]
42.7 300 3
28.4 200 2
14.2 1
100
0
25
77
[A]: Pressure of high pressure gauge
[B]: Pressure of low pressure gauge
[C]: Ambient temperature
[D]: Humidity
[E]: Acceptable range
2 )
2 )
%
70
"A"
30
[E]
"B"
[D]
70
"C"
[E]
30
"D"
30 35 C
86 95 F
[C]
I7RS0A721006-01