Technical Information

Features and benets
TCGB0079 rev.0 - 01/2013
24
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IVX Standard series
Outdoor unit model
3 HP 4 HP 5 HP 6 HP
Maximum number of connected Indoor Units
2 4
Connected capacity ratio of Indoor Unit %
(number of connected Indoor Units)
90-110% (1 unit) 90-115% (≤ 2 units)
90-100% (2 units) 90-100% (3 or 4 units)
Minimum capacity of Indoor Units (HP)
0.8
Outdoor unit model
8 HP 10 HP 12 HP
Maximum number of connected Indoor Units 4
Connected capacity ratio of Indoor Unit %
(number of connected Indoor Units)
90-115%
Minimum capacity of Indoor Units (HP) 1.8
N O T E
Wheretheparametersofinstallationareclosetotheirlimitvalues(longIndoor-to-Indoorpipedistances,highoutdoor-to-
indoorheightdifference,longpipesingeneral,etc)itisrecommendedtofollowthetable1(seeremarks)forbestcomfort.
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Remarks
1
Table 1
Indoor unit with the highest capacity (HP) 0.8 1.0 1.3 1.5 1.8 2.0 2.3 2.5 3.0 4.0 5.0 6.0
Indoor Unit with the lowest capacity (HP) 0.8 1.0 1.3 1.5 1.8 2.0
2
In the systems where the model of all is 4-Way RCI-FSN3, the maximum capacity ratio of connected indoor units al-
lowed is 100%, and the maximum number of connected indoor units are:
OU model 2 HP 2.5 HP 3 HP 4 HP 5 HP 6 HP
8 HP 10 HP 12 HP
OU Premium Series
Max. number of IU
1 2 4 4
OU Standard Series
Max. number of IU
‘-- 1 2 4
3
When installing RCIM-2.0FSN2, RPF(I)-2.0FSN2E or RPF(I)-2.5FSN2E, 1 indoor unit combination with IVX Premi-
um/Standard series not allowed.
4
In case of installation in cold territories (where Outdoor Temperature may fall below -10ºC for Utopia IVX Premium
and -5ºC for Utopia IVX Standard) or in places where Heating load is large, install a number of units not bigger than
suggested number of connected units, with a connected capacity ratio under 100%.
5
Please check the piping chapter for other restrictions and limitations to adequate the combinability and the number of
indoor units installed.
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Wide variety of standard command options
The UTOPIA series has many standard commands. These options can be easily set by means of any of the wide variety
of HITACHI remote controls, or through the PCBs of the indoor and outdoor units. In this way the UTOPIA series adapts
to each installation.
2.3.3 Assisted air conditioning installation design by Hi-Tool kit selection software
The Hi-Tool Kit selection software is a tool for designing HVAC
installations and automatically generating all necessary related in-
formation to complete the planned installation.
The necessary related information includes:
• Product selection table.
• Cooling and wiring diagram according to the installation design.
• Full list of necessary products to complete the installation.
• Installation start-up management.
TCGB0079_rev0_11-2012.indb 24 29/01/2013 14:26:55