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SEN06151-00
Configuration and function of refrigeration cycle
Cycle
Compression
(Component)
(Compressor)
Location
Engine compartment
Circulates refrigerant
gas and increases its
temperature and pres-
sure so that it can be
Function
liquefied easily in con-
denser.
(Compression of
refrigerant)
Gas o Gas
State of refriger-
ant
Adiabatic compres-
6
80-100
Condensation
(Condenser)
Front of radiator
Condenses refrigerant
to discharge heat
absorbed in evaporator.
(condensation of refrig-
erant)
Gas o Liquid
Cnstant pressure
sion
change
Configuration and function of refrigeration cycle
Expansion
(Expansion valve)
In operator cab
(Built in air conditioner
unit)
Lowers temperature and
pressure of refrigerant liq-
uid and gas for easy evap-
oration with throttle.
Controls flow rate, too.
(Throttle of refrigerant)
Liquid o Liquid and gas
Adiabatic expansion
PC200, 200LC, 220, 220LC-8M0
100 Air conditioner
Evaporation
(Evaporator)
In operator cab
(Built in air conditioner
unit)
Evaporates refrigerant to
absorb heat from air
around evaporator, and
cool the air.
(Evaporation of refriger-
ant)
Liquid and gas o Gas
Cnstant pressure change
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