Preferential Kwh Rate Power Supply - Daikin Altherma 3 H MT ECH2O Installer's Reference Manual

6.5.4 Preferential kWh rate power supply

EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1 – 2021.07
Example
Single-phase power meter
0
0
58 0
1 5 0
a
b
c c c
d e f
A B
A Outdoor unit
B Indoor unit
a Electrical cabinet (L /N)
1
b Power meter (L /N)
1
c Fuse (L /N)
1
d Outdoor unit (L /N)
1
e Indoor unit (L /N)
1
f Backup heater (L /N)
1
Exception
▪ You can use a second power meter if:
- The power range of one meter is insufficient.
- The electrical meter cannot easily be installed in the electrical cabinet.
- 230 V and 400 V three-phase grids are combined (very uncommon), because of
technical limitations of power meters.
▪ Connection and setup:
- Connect the second power meter to X15M/9 and X15M/10. See
connect the electricity
- 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
power meters.
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.
Three-phase power meter
c
e
A
A Outdoor unit
B Indoor unit
a Electrical cabinet (L
b Power meter (L
c Fuse (L
d Fuse (L
e Outdoor unit (L
f Indoor unit (L
g Backup heater (L
4
meters" [ 125].
supply" [
6 Application guidelines
|
0
0
58 0
1 5 0
a
b
4 5 0
8 9 6
.0 0 5
d c
f g
B
/L /L /N)
1 2 3
/L /L /N)
1 2 3
/L /L /N)
1 2 3
/N)
1
/L /L /N)
1 2 3
/N)
1
/L /L /N)
1 2 3
"9.3.6 To
4
59] for an example with two
Installer reference guide
59