6 | Application guidelines
Installer reference guide
37
ERGA04~08EAV3(A) + EHVZ04+08S18+23EA6V+9W
Daikin Altherma 3 R F
4P629093-1 – 2020.08
6.4.3 Normal kWh rate power supply
General rule
One power meter that covers the entire system is sufficient.
Setup
Connect the power meter to X5M/5 and X5M/6. See "9.3.4 To connect the
electricity meters"[4103].
Power meter type
In case of… Use a… power meter
▪ Single-phase outdoor unit
▪ Backup heater supplied from a single-
phase grid (i.e. the backup heater
model is *3V or *6V connected to a
single-phase grid)
Single-phase
(*3V, *6V (6V): 1N~230V)
▪ 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)
Three-phase
(*6V (6T1): 3~230V)
(*9W: 3N~400V)
Example
Single-phase power meter Three-phase power meter
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L
1
/N)
b Power meter (L
1
/N)
c Fuse (L
1
/N)
d Outdoor unit (L
1
/N)
e Indoor unit (L
1
/N)
f Backup heater (L
1
/N)
g Booster heater (L
1
/N)
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L
1
/L
2
/L
3
/N)
b Power meter (L
1
/L
2
/L
3
/N)
c Fuse (L
1
/L
2
/L
3
/N)
d Fuse (L
1
/N)
e Outdoor unit (L
1
/L
2
/L
3
/N)
f Indoor unit (L
1
/L
2
/L
3
/N)
g Backup heater (L
1
/L
2
/L
3
/N)
h Booster heater (L
1
/N)