Daewoo BM090, Manual

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4. Refrigerant system
Use of refrigerant R-12 in this system cools the
air in the bus with evaporation of the refrigerant.
The evaporated refrigerant is fed into condenser
after compressed at high pressure and high tem-
perature by compressor for repeated use.
Condenser fan converts the refrigerant into liquid
at high pressure and high temperature by cooling.
Use of expansion valve cause the liquid refriger-
ant to be decompressed, to enter the cooler again,
and to evaporate to cool down the air in the bus.
Cooling air, condenser
Liquid
receiver
Condenser
Cooled air
Evaporator
Compressor
Room air, returning
Expansion
valve
Sight
glass Dryer
Evaporator
Expansion
valve
Receiver tank
Bypass
solenoid
High pressure line
Low pressure line
Condenser
Compressor