Why air conditioning indoor machine called evaporator components, outdoor unit called the condenser, I'd know that these two are heat exchanger,
Condenser in the refrigerant from the gaseous into liquid, is a condensing heat process, the pressure is generally high!
The difference is that the refrigerant in the evaporator is changed from liquid to gaseous, is an evaporative endothermic process, the pressure is generally low;
You'd be very professional, probably because the air conditioning before the single is cold type will be so called
