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/2
FEATURES AND BENEFITS
2.2. COMPRESSOR
"
The Samurai Range incorporates
the latest development of
HITACHI´s Screw Compressor
Technology for the new
millennium.
$
Highly Reliable HITACHI Two-Pole
Motor
%
Solenoid Valve for Capacity Control
&
Built-in Oil Separator
'
Oil Sight Glass
(
Oil Heater
)
High precision Twin Screw Rotors
*
Suction Filter
"
Twin Screw Compressor
! Dual refrigerant compressor for R407C or R22 utilising
the same oil.
! By having so few moving parts, it has become highly
reliable with very low noise level and low vibration.
-LOW VIBRATION-
"
Principle of Compression
"
Continuous Capacity Control
HITACHI´s Continuous Capacity Control system uses
advanced electronic controls to position the infinitely variable
slide valve within each compressor.
This modulation allows exact load control and accurate
chilled water temperature without the need for expensive
inverters.
$
%
&
'
(
)
*
Reciprocating
Screw
MPLITUDE (µm)
Time (second)
Discharge Port
Suction Port
Cooling load = continuos capacity control
COOLING LOAD %
Step
control
TIME (Hour)
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