Connected Capacity Ratio - Hitachi UTOPIA R32 Series Technical Catalogue

4 Capacities and selection data
Combinability range

4.1.2 Connected capacity ratio

Maximum number of connected indoor units
Connected capacity ratio of indoor unit %
(number of connected Indoor Units)
Minimum capacity of indoor units (HP)
?
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 Table 1 (see remarks) for best comfort.
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Remarks
1 Table 1
Indoor unit with the highest capacity (HP)
Indoor unit with the lowest capacity (HP)
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
Maximum number of IU
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.
49 TCGB0136 rev.1 - 05/2021
Outdoor unit model
3 HP 4 HP
2
90-100% (1 or 2
units)
0.8
0.8 1.0 1.3 1.5 1.8
0.8
3 HP 4 HP 5 HP 6 HP
1 2
5 HP 6 HP
4
90-115% (1 to 4 units)
2.0 2.3 2.5 3.0 4.0
1.0 1.3 1.5
4
5.0 6.0
1.8 2.0