Subaru Legacy 2005 Service Manual page 3481

21.Pressure Switch (Triple Pressure Switch)
A: INSPECTION
1) Connect the manifold gauge to the service valve on the high-pressure side.
2) Remove the pressure switch harness connector. Using a circuit tester, inspect the ON-OFF operation of
pressure switch.
High and low pressure switch
Middle pressure switch
Pressure Switch (Triple Pressure Switch)
1
4 3
2
AC-00788
Terminal
Operation
No.
Turns OFF.
1 and 2
Turns ON.
Turns OFF.
3 and 4
Turns ON.
HVAC SYSTEM (HEATER, VENTILATOR AND A/C)
+50
Increasing to 3,140
Decreasing to 196±20 (2.00±0.20, 28.4±2.9)
+25
Increasing to 225
−29
Decreasing to 2,550±200 (26.00±2.04, 369.8±29.0)
Decreasing to 1,370±120 (14±1, 199±14)
Increasing to 1,770±100 (18±1, 256±14)
AC-41
Standard
2
kPa (kgf/cm , psi)
+0.51
(32.02 , 455.4
−200 −2.04
+0.25 +3.6
(2.29 , 32.6
−0.30 −4.2
+7.25
)
−29.0
)