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 kgf/sq.cm, 27 psi) < P < approx. 2,154 kPa (22 kgf/sq.cm, 313 psi)
When refrigerant pressure is greater than 176 kPa (1.8 kgf/sq.cm, 25.5 psi), diaphragm spring is inverted so that low switch is opened (OFF).