SANY LATIN AMERICA
4-138
SY195/205/215/225C9 Crawler Hydraulic Excavator
Structure and Function
Shop Manual - June 2013
4.7.7 Expansion valve
1) Spring
2) Diaphragm
3) Probe
4) Needle
valve
ZX215-1002147
1
2
3
4
ZX215-1002147
1
2
3
4
Evaporator
Reservoir
Compressor
4.7.8 Condenser
1) Condenser
core
2) Bracket
3) Bolt with gasket
4) Refrigerant
inlet
5) Refrigerant
outlet
ZX215-1002146
1
2
3
5
4
Function
●
The condenser converts high-temperature,
high-pressure gas refrigerant (16Kg/cm²,
about 80°C) to high-temperature and high-
pressure liquid refrigerant (16Kg/cm², be-
low 60°C) through radiating.
Operating principle
●
Refrigerant from the receiver tank spurts
out via the orifice, turns into low-temper-
ature, low-pressure liquid (mist) after ex-
panding, and enters the evaporator.
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