Hitachi YUTAKI M Bedienungsanleitung Seite 21

4.3 R32 Hydraulic working range
4.3.1 Hydraulic data
Minimum water flow rate (*1)
Maximum water flow rate (*1)
Minimum installation water volume (*2)
Minimum allowable water pressure
Maximum allowable water pressure

NOTE
• (*1): Values calculated based on the following conditions:
» Water inlet/outlet temperature: 30/35°C
» Outdoor ambient temperature: (DB/WB): 7/6°C
• (*2): Values calculated with an ON/OFF temperature differential value of 4°C.
4.3.2 Pump performance curves

NOTE
If a water flow rate is selected out of the working range of the unit, it can cause malfunction on the
unit. Please, try to operate the pump within the minimum and maximum water flow.
2.0 HP
8
7
6
5
4
3
2
1
0
0 0,5 1
Water flow (m
PMEN0647 rev.0 - 11/2023
MODEL
1,5 2 2,5 3 3,5
/h)
3
m /h
3
m /h
3
liters
MPa
MPa
3.0 HP
8
7
6
5
4
3
2
1
0
0 0,5 1 1,5 2
Water flow (m
3
2.0 HP 3.0 HP
0.5 0.6
1.9 2.1
28 28
0.1
0.3
2,5 3
3,5
/h)
13
4