6 | Application guidelines
Installer reference guide
47
EPRA14~18D + ETVZ16S18+23E
Daikin Altherma 3 H HT F
4P644739-1A – 2022.03
Power meter types
▪ Power meter 1: Single- or three-phase power meter according to the power
supply of the outdoor unit.
▪ Power meter2:
- 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 fe
ihg
A B
ba
d
450896.005
c
5
8
0
1
5
0
0
0
5
8
0
1
5
0
0
0
X5M/3+4 X5M/5+6
S1S
X5M/9+10
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)
S1S Preferential kWh rate power supply contact
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"[4200].
# Power consumption control
1 "6.6.1Permanent power limitation"[448]
▪ 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 "6.6.2Power limitation activated by digital inputs"[449]
▪ 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.