REFRIGERANT PRESSURE SWITCH OPERATION


BME074061503T01

Middle Pressure Switch Operation

• When the refrigerant pressure exceeds approximately 2.06 MPa {21.0 kgf/cm2, 299 psi}, the contact point goes on, and the middle pressure switch sends an idle up signal to the PCM.
• When the PCM receives the idle up signal, the PCM sends an operation signal to the IAC valve.

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1
Refrigerant pressure switch
2
Idle up signal