A CONTROLLER FOR A VAPOUR COMPRESSION SYSTEM AND A METHOD FOR CONTROLLING A VAPOUR COMPRESSION SYSTEM

摘要

The invention discloses a controller for a vapour compression system for cooling a refrigerated space. The system comprises a circuit for circulation of a refrigerant between a compressor (2) a condenser (3) and an evaporator (4). An expansion valve (5) controls a flow of the refrigerant into the evaporator (4) and thereby cooling of the refrigerated space. The control system is adapted to control the expansion valve (5) based on a first temperature (Tl) in the circuit between the evaporator (4) and the compressor (2) and a second temperature (T2) determined in the refrigerated space.