#
REFRIGERANT PRESSURE SWITCH OPERATION

BME074061503T01

## Middle Pressure Switch Operation

• When the refrigerant pressure exceeds approximately 2.06 MPa {21.0 kgf/cm 2, 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.

1 | Refrigerant pressure switch
2 | Idle up signal