08 + ERLQ004~008
Daikin Altherma - Low Temperature Split
4P313774-1 – 2012.05
Installer reference guide
18
5 Application guidelines
Example
Exception
Q
You can use a second power meter if:
Q
The power range of one meter is insufficient.
Q
The electrical meter cannot easily be installed in the
electrical cabinet.
Q
230V and 400V three-phase grids are combined (very
uncommon), because of technical limitations of power
meters.
Q
Connection and setup:
Q
Connect the second power meter to X5M/9 and X5M/10.
Q
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.
Q
See preferential kWh rate power supply for an example with two
power meters.
5.5.4 Preferential kWh rate power supply
General rule
Q
Power meter 1: Measures the outdoor unit.
Q
Power meter 2: Measures the rest (i.e. indoor unit, backup
heater and optional booster heater).
Setup
Q
Connect power meter 1 to X5M/7 and X5M/8.
Q
Connect power meter 2 to X5M/9 and X5M/10.
Power meter types
Q
Power meter 1: Single- or three-phase power meter according to
the power supply of the outdoor unit.
Q
Power meter 2:
Q
In case of a single-phase backup heater configuration, use
a single-phase power meter.
Q
In other cases, use a three-phase power meter.
Example
Single-phase outdoor unit with a three-phase backup heater:
5.6
Setting up the power consumption control
Q
The power consumption control:
Q
Is only applicable for EHBH/X04+08 and EHVH/X04+08.
Q
Allows you to limit the power consumption of the entire
system (sum of outdoor unit, indoor unit, backup heater and
optional booster heater).
Q
Configuration: Set the power limitation level and how it has
to be achieved via the user interface.
Q
The power limitation level can be expressed as:
Q
Maximum running current (in A)
Q
Maximum power input (in kW)
Q
The power limitation level can be activated:
Q
Permanently
Q
By digital inputs
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)
b
580
1 50
0
0
c
c
f
e
d
g
A
B
C
a
b
580
1 50
0
0
g
f
e
h
A
B
C
c
c
d
a
A
Outdoor unit
B
Indoor unit
C
DHW tank
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
/L
2
/L
3
/N)
i
Backup heater (L
1
/L
2
/L
3
/N)
j
Booster heater (L
1
/N)
580
1 50
0
0
e
e
f
i
h
g
j
A
B
C
b
a
d
580
1 50
0
0
c
