YH4
GRAND
VITARA
Pressure
AB
CD
SWITCH
ON
(Continuity)
OFF
(No continuity)
AIR CONDITIONING (OPTIONAL) 1B-47
DUAL PRESSURE SWITCH
INSPECTION
1) Check dual pressure switch (1) on liquid pipe for continuity at
normal temperature (approx. 25_C (77_F)) when A/C system
has a proper charge of refrigerant and when A/C system (com-
pressor) is under operation. In each of these cases, switch
should show proper continuity.
2) Using a manifold gauge set, check switch for operation at speci-
fied pressure as shown, refer to “PERFORMANCE DIAGNO-
SIS” in this section.
Switch ON : above “C” and below “D”
Switch OFF : below “A” or above “B”
“A”: Approx. 200 kPa (2.0 kg/cm
2
)
“B”: Approx. 3200 kPa (32 kg/cm
2
)
“C”: Approx. 230 kPa (2.3 kg/cm
2
)
“D”: Approx. 2800 kPa (28 kg/cm
2
)
Tightening torque:
Dual pressure switch: 10 N
.
m (1.0 kg-m, 7.5 lb-ft)
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