Daikin Altherma 3 H HT F Series Installer's Reference Manual page 48

5 | Application guidelines
Installer reference guide
48
In case of...
▪ Three-phase outdoor unit
▪ Backup heater supplied from a three-
phase grid (i.e. the backup heater
model is *9W or *6V connected to a
three-phase grid)
Example
Single-phase power meter
0 0
58 0
1 5 0
a
b
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 X5M/3 and X5M/4. See
the electricity meters" [
- 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 "5.5.4 Preferential kWh rate power
power meters.
Three-phase
(*6V (6T1): 3~ 230 V)
(*9W: 3N~ 400 V)
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
107].
supply" [
EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Use a... power meter
0 0
58 0
1 5 0
a
b
  
 
d
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
/L /L /N)
1 2 3
/L /L /N)
1 2 3
"8.3.4 To connect
4
49] for an example with two
Daikin Altherma 3 H HT F
4P587502-1 – 2019.07