Restoration broken HITACHI 30kw ice machine | restore rusty old 3 phase 380v compressor Working principle of pure ice machine State 1 Steam is drawn to the compressor through the oil separator for the purpose of separating the oil dust from the refrigerant vapor. At this time, the steam is in the form of low-pressure steam, which is compressed by the compressor, compressing the medium to high temperature and high pressure. Then, the vapor returns to the condenser and condenses into a liquid form by exchanging heat and releasing heat to water to lower the temperature and pressure. Phase 2 At the heat recovery device, the liquid is cooled down after passing through the evaporator The liquid is introduced into the high pressure container and through the throttling system reduces the pressure to the evaporator pressure The refrigerant on the evaporator receives the heat of the ice and evaporates