Impreza Sedan AWD F4-1820cc 1.8L SOHC (1993)
During abnormal low-pressure operation [P <approx. 206 kPa (2.1 kg/sq.cm, 30 psi)]
1. All contact points are open (OFF) since the tension of the diaphragm springs is greater than refrigerant pressure.
2. Approx. 206 kPa (2.1 kg/sq.cm, 30 psi) <P <approx. 1,471 kPa (15 kg/sq.cm, 213 psi) When refrigerant pressure is greater than 206 kPa
(2.1 kg/sq.cm, 30 psi), diaphragm spring is inverted so that low switch opened (OFF).
During abnormal high-pressure operation [P > approx. 2,648 kPa (27 kg/sq.cm, 384 psi)]
When refrigerant pressure is greater than 2,648 kPa (27 kg/sq.cm, 384 psi), diaphragm spring is inverted so that high switch is opened (OFF) and
low switch is closed (ON).