During Abnormal Low-Pressure Operation
1. ABNORMAL LOW-PRESSURE OPERATION
- All contact points are open (OFF) since the tension of the diaphragm springs is greater than refrigerant pressure.
- Approx. 186 kPa (1.9 kg/sq.cm, 27 psi) < P < approx. 1,471 kPa (15 kg/sq.cm, 213 psi)
When refrigerant pressure is greater than 186 kPa (1.9 kg/sq.cm, 27 psi), diaphragm spring is inverted so that low switch is opened (OFF).