Normal Kwh Rate Power Supply; Preferential Kwh Rate Power Supply; Setting Up The Power Consumption Control - Daikin ERHQ011BA Installer's Reference Manual

5.5.3 Normal kWh rate power supply

General rule
One power meter that covers the entire system is sufficient.
Setup
Connect the power meter to X5M/7 and X5M/8.
Power meter type
In case of...
Single-phase outdoor unit
Backup heater supplied
from a single-phase grid (i.e.
the backup heater model is
*3V or *9W connected to a
single-phase grid)
In other cases (i.e. a three-phase
outdoor unit and/or a 9W*
backup heater model 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 g
A B C
A Outdoor unit
B Indoor unit
C DHW tank
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
g Booster 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.
230V and 400V three-phase grids are combined (very
uncommon), because of technical limitations of power
meters.
Connection and setup:
Connect the second power meter to X5M/9 and X5M/10.
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 preferential kWh rate power supply for an example with two
power meters.
EHBH/X16
Daikin Altherma - Low Temperature Split
4P313776-1 – 2012.05
Use a... power meter
Single-phase
Three-phase
Three-phase power meter
0
0
58 0
1 5 0
a
   b
 
c c d
e f g h
A B C
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L /L /L /N)
1 2 3
b Power meter (L /L /L /N)
1 2 3
c Fuse (L /L /L /N)
1 2 3
d Fuse (L /N)
1
e Outdoor unit (L /L /L /N)
1 2 3
f Indoor unit (L /L /L /N)
1 2 3
g Backup heater (L /L /L /N)
1 2 3
h Booster heater (L /N)
1
5 Application guidelines

5.5.4 Preferential kWh rate power supply

General rule
Power meter 1: Measures the outdoor unit.
Power meter 2: Measures the rest (i.e. indoor unit, backup
heater and optional booster heater).
Setup
Connect power meter 1 to X5M/7 and X5M/8.
Connect power meter 2 to X5M/9 and X5M/10.
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:
0 0
0 0
58 0 58 0
1 5 0 1 5 0
a b
  
c d
 
e f e
g h i j
A B C
A Outdoor unit
B Indoor unit
C DHW tank
a Electrical cabinet (L
supply
b Electrical cabinet (L
supply
c Power meter (L
d Power meter (L
e Fuse (L /N)
1
f Fuse (L /L /L
1 2 3
g Outdoor unit (L
h Indoor unit (L
1
i Backup heater (L
j Booster heater (L
5.6

Setting up the power consumption control

The power consumption control:
Is only applicable for EHBH/X04+08 and EHVH/X04+08.
Allows you to limit the power consumption of the entire
system (sum of outdoor unit, indoor unit, backup heater and
optional booster heater).
Configuration: Set the power limitation level and how it has
to be achieved via the user interface.
The power limitation level can be expressed as:
Maximum running current (in A)
Maximum power input (in kW)
The power limitation level can be activated:
Permanently
By digital inputs
/N): Preferential kWh rate power
1
/L /L /N): Normal kWh rate power
1 2 3
/N)
1
/L /L /N)
1 2 3
/N)
/N)
1
/L /L /N)
2 3
/L /L /N)
1 2 3
/N)
1
Installer reference guide
16