SANY LATIN AMERICA
4-134
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
4.7.4 Refrigeration principle
4.7.4.1 Refrigeration cycle diagram
4.7.4.2 Heating cycle diagram
ZX215-1002141
Cool air
Lo-pressure portion
Hot air
Hi-pressure portion
Lo temp\Lo press gas
Air in cab
Out side fresh air
Cooling fan
Lo temp\Lo press liquid (Mist)
Hi temp\Hi press liquid
Lo-pres.
side
Hi-pres.
side
Compressor
Blower
Evaporator
Receiver
Expansion valve
Hi-temp hi-pres gas
Condenser
ZX215-1002142
Engine
Water pump
Water valve control
Blower motor
Internal air
Low tempr water
High temp water
Hot air
Radiator
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