Daikin Altherma 3 H MT ECH2O, Installer'S Reference Manual

Page: 60 / 304

6 | Application guidelines
Installer reference guide
60
EPRA08~W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1 – 2021.07
See "9.3.6 To connect the electricity meters" [
4
125].
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
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)
6.6 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
213].
# Power consumption control
1 "6.6.1 Permanent power limitation" [
4
61]
▪ 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 "6.6.2 Power limitation activated by digital inputs" [
4
61]
▪ 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.