Daikin Altherma 3 H HT ETSX16E7, Installer'S Reference Manual

Page: 60 / 312

6 | Application guidelines
Installer reference guide
60
EPRA14~18D + ETSH/X(B)16P30+50E
Daikin Altherma 3 H HT ECH₂O
4P679467-1B – 2022.09
▪ Connection and setup:
- Connect the second power meter to X15M/9 and X15M/10. See "9.3.6 To
connect the electricity meters" [ 4 127].
- In the software the power consumption data of both meters is added so you do
NOT have to set which meter covers which power consumption. You only need
to set the number of pulses of each power meter.
▪ See "6.5.4 Preferential kWh rate power supply" [
4
60] for an example with two
power meters.
6.5.4 Preferential kWh rate power supply
General rule
▪ Power meter 1: Measures the outdoor unit.
▪ Power meter 2: Measures the rest (i.e. indoor unit and backup heater).
Setup
▪ Connect power meter 1 to X15M/5 and X15M/6.
▪ Connect power meter 2 to X15M/9 and X15M/10.
See "9.3.6 To connect the electricity meters" [ 4 127].
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)