Hitachi YUTAKI Series - Space Cooling (Necessary Cooling Kit); R410 A Hydraulic Working Range; Hydraulic Data

4.3.4 Space cooling (Necessary cooling kit)
Water outlet
temperature (ºC)
Ambient temperature
(ºC(DB))
Refreshing oor
working area
Fan coil working
area



 Continuous working range.
 Maximum setting temperature.
 Minimum setting temperature.
4.4 R410A HYDRAULIC WORKING RANGE
4.4.1 Hydraulic data

YUTAKI S
MODEL 2.0 HP 2.5 HP 3.0 HP 4.0 HP 5.0 HP 6.0 HP 8.0 HP 10.0 HP
Minimum water ow rate (*1) m
3
/h 0.5 0.6 0.6 1.0 1.1 1.2 2.0 2.2
Maximum water ow rate (*1) m
3
/h 1.9 2.0 2.1 2.9 3.0 3.0 4.5 4.6
Minimum installation water volume (*2) l 28 28 28 38 46 55 76 79
Minimum allowable water pressure MPa 0.1
Maximum allowable water pressure MPa 0.3

YUTAKI S COMBI
MODEL 2.0 HP 2.5 HP 3.0 HP 4.0 HP 5.0 HP 6.0 HP
Minimum water ow rate (*1) m
3
/h 0.5 0.6 0.6 1.0 1.1 1.2
Maximum water ow rate (*1) m
3
/h 1.8 1.9 1.9 2.7 2.8 2.8
Minimum installation water volume (*2) l 28 28 28 38 46 55
Minimum allowable water pressure MPa 0.1
Maximum allowable water pressure MPa 0.3

YUTAKI S80
MODEL
4.0 HP 5.0 HP 6.0 HP
Version for
indoor unit
alone
Version for
combination
with DHW
tank
Version for
indoor unit
alone
Version for
combination
with DHW
tank
Version for
indoor unit
alone
Version for
combination
with DHW
tank
Minimum water ow rate (*1) m
3
/h 1.0 1.1 1.2
Maximum water ow rate (*1) m
3
/h 2.8 2.5 3.2 2.7 3.2 2.7
Minimum installation water volume (*2) l 40 50 50
Minimum allowable water pressure MPa 0.1
Maximum allowable water pressure MPa 0.3
WORKING RANGE
PMML0510 rev.1 - 10/2019
26