Power Supply Working Range; Temperature Working Range; Space Heating - Hitachi YUTAKI S80 R410A Series Installation And Operation Manual

4.1

Power supply working range

Nominal power supply
◆
• Single phase: 1~ 230V 50Hz
• Three phase: 3N~ 400V 50Hz
Operating voltage
◆
Between 90 and 110% of the nominal voltage.
Voltage imbalance for nominal power supply 3N~ 400V 50Hz
◆
Up to 3% of each phase, measured at the main terminal of the outdoor unit.
Starting voltage
◆
Always higher than 85% of the nominal voltage.
4.2

Temperature working range

Water temperature
Indoor ambient temperature
4.2.1 Space heating
80
70
60
50
40
30
20
10
0
-30 -25 -20
Ambient temperature (°C)
PMEN0648 rev.0 - 03/2023
MODEL
-10 0 10
4.0HP
Refer to the graphics for each case
°C
Continuous working range
Heat pump operation possible
Start up only
20 25 30
5.0HP 6.0HP
5~30
4
17