High discharge temperature. - Discharge thermostat.
High condensing pressure. - High pressure switch.
High evaporation pressure. - Crankcase pressure regulator (KVL); Expansion valve with MOP; Electronic expansion valve (large capacities).
Low condensing pressure. - Condensation control, you can use: High pressure switch, KVR NRD valve, Condenser fan controller.
Low evaporation pressure. - Low pressure switch.
