Daikin Altherma 3 H HT EPRA18DAW1, Installer'S Reference Manual

Page: 38 / 252

5 | Application guidelines
Installer reference guide
38
EPRA14~W1 + ET9W
Daikin Altherma 3 H HT F
4P587503-1A – 2020.01
See "8.3.4 To connect the electricity meters" [
4
97].
Power meter types
▪ Power meter 1: Single- or three-phase power meter according to the power
supply of the outdoor unit.
▪ Power meter 2:
- In case of a single-phase backup heater configuration, use a single-phase
power meter.
- In other cases, use a three-phase power meter.
Example
Single-phase outdoor unit with a three-phase backup heater:
e f e
i h g
A B
b a
d

c
580
1 50
0
0
580
1 50
0
0
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L
1
/N): Preferential kWh rate power supply
b Electrical cabinet (L
1
/L
2
/L
3
/N): Normal kWh rate power supply
c Power meter (L
1
/N)
d Power meter (L
1
/L
2
/L
3
/N)
e Fuse (L
1
/N)
f Fuse (L
1
/L
2
/L
3
/N)
g Outdoor unit (L
1
/N)
h Indoor unit (L
1
/N)
i Backup heater (L
1
/L
2
/L
3
/N)
5.5 Setting up the power consumption control
You can use the following power consumption controls. For more information
about the corresponding settings, see
"Power consumption control" [
4
175].
# Power consumption control
1 "5.5.1 Permanent power limitation" [
4
39]
▪ Allows you to limit the power consumption of the entire heat pump
system (sum of indoor unit and backup heater) with one permanent
setting.
▪ Limitation of power in kW or current in A.
2 "5.5.2 Power limitation activated by digital inputs" [
4
39]
▪ Allows you to limit the power consumption of the entire heat pump
system (sum of indoor unit and backup heater) via 4 digital inputs.
▪ Limitation of power in kW or current in A.