Hitachi FSG Series, Технический каталог

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SYSTEM DESCRIPTION
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Top Class Silence Operation
HITACHI use the high technology to achieve the Lowest
sound possible
These Technologies are:
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PWM ( Pulse With Modulation) Control
Fan motor control by PWM has realized low
electromagnetic sounds remarkably.
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Low Operation Sound Resulting from New Fan Shape
and Propeller Fan Material
The combination of most appropriate fan shape for
smooth air flow and a new material of Mica
polypropylene has resulted in a low operation sound
which was almost impractical in previous units.
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Low Sound Operation by Low Noise Fan Motor
Aluminum die-casting was used for assembled fan
motor and low sound operation has been achieved.
And due to a non resonance suspension structure, the
vibration sound has been minimized.
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Lower Sound Operation during Night Time
By improved at around of cabinet structure and fan
shape, and by the adoption of new material and inverter,
operation sound has been reduced.
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Reliability
HITACHI use the inverter technology to achieve the Less
failures than the standard compressors. The system
never stop and the quantity of the refrigerant than the
system request is proportional to speed compressor. The
speed compressor is proportional to frequency work ( 30-
Hz to 115Hz).
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Flexibility
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Flexibility Refrigerant Piping:
With the new Systems 24-30 HP FSG1 and 20-30 HP
FXG1, can achieve possible to extend longer
refrigerant piping to request for Tall Buildings.
Maximum total piping length between outdoor and
indoor units :120m FSG1 and 100m FXG1
Maximum vertical lift between indoor and outdoor unit:
50m (40 when O.U are lower than I.U)
Maximum vertical lift among indoor units: 15m.
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Flexibility of Indoor Unit Control
CS –NET system is the developed Computer
Controlled Network System from HITACHI for SET-
FREE multi-split air conditioners.
PSC-5S : Is a central station. It allows to control 8
outdoor units with 16 indoor unit each one
PC-P1HE: Is a remote control. It allows to control 1
outdoor unit with 16 indoor unit
PC-LH3A: Is a wireless remote control switch
PC-P5H: : Is a remote control. It allows to control 1
outdoor unit with 16 indoor unit
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Flexibility of Piping Systems (see page 6).
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H-LINK System
The H-LINK wiring system requires only two transmission
wires connecting each CH unit and outdoor unit for up to
16 refrigerant cycles, and connecting wires for all indoor
units and all outdoor units in series.
The new system will give the following advantages:
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Easy and flexible installation.
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Non polarity.
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Freely Combinable.
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CS-Net Connection via Indoor or Outdoor Unit
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Maximum 128 Indoor Units
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Maximum length: 1000 m
Example of H-LINK System
Specifications:
Transmission Wire: 2 - Wire
Polarity of Transmission Wire: Non - Polar Wire
Maximum Outdoor Units 16 Units per H-LINK system
Maximum Indoor Units 128 Units per H-LINK System
Maximum Wiring Length: Total 1000 m (including CS-NET)
Recommended Cable: Twisted Shielded Pair Cable, over
0,75 mm² (Equivalent to KPEV-S)
Voltage: DC5V
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NOTE:
In case of applying the H-LINK system, the setting of
dip switches is required. If the dip switches are not set
or set incorrectly, the alarm may occur due to the
transmission failure.
Total wiring length for remote control switch can be
extended up to 500m. If total wiring length less than
30m, it is possible to use the normal wiring (0.3mm²).
Outdoor Unit
Transmission
Wires
Refrigerant Piping
Indoor Units
: One Refrigerant Cycle