Hitachi UTOPIA R410A Series - Connected Capacity Ratio

4 Capacities and selection data
Combinability range
TCGB0136 rev.1 - 05/2021
49
4
4.1.2 Connected capacity ratio
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)
90-100% (1 or 2
units)
90-115% (1 to 4 units)
Minimum capacity of indoor units (HP)
0.8
? NOTE
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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 systems where all the units belong to the 4-Way RCI-FSR model, the maximum allowed capacity ratio of
connected indoor units is 100%, and the maximum number of connectable indoor units are:
OU model 3 HP 4 HP 5 HP 6 HP
Maximum number of IU 1 2
3 When installing RPF(I)-2.0FSN2E or RPF(I)-2.5FSN2E, single combination with UTOPIA Prime / UTOPIA IVX Prime
and UTOPIA IVX Standard / UTOPIA IVX Premium series is not allowed.
4 In case of installation in cold territories (where outdoor temperature may fall below -5ºC) or in places where heating
load is large, install a number of 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.