Preferential Kwh Rate Power Supply; Setting Up The Power Consumption Control; Permanent Power Limitation - Daikin Altherma EPGA16DAV3 Installer's Reference Manual

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.
▪ 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 supply" on page 15
an example with two power meters.
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 and backup
heater).
Setup
▪ Connect power meter 1 to X5M/5 and X5M/6.
▪ Connect power meter 2 to X5M/3 and X5M/4.
Power meter types
▪ Power meter 1: Single- or three-phase power meter according to
the power supply of the outdoor unit.
▪ Power meter 2: Use a single-phase power meter.
EPGA11~16DAV3 + EAVZ16S18+23DA6V+9W
Daikin Altherma – Low temperature split
4P556075-1 – 2019.02
Three-phase power meter
0 0
58 0
1 5 0
a
b
  
 
c d
e f g
A B
A Outdoor unit
B Indoor unit
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
for
5 Application guidelines
5.6 Setting up the power consumption
control
▪ The power consumption control:
▪ Allows you to limit the power consumption of the entire system
(sum of outdoor unit, indoor unit and backup 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
NOTICE
It is possible to install a field fuse with lower than
recommended rating over the heat pump. For this you
must modify field setting [2‑0E] according to the maximum
allowed current over the heat pump.
Note that field setting [2‑0E] overrules all power
consumption control settings. Power limiting the heat pump
will reduce performance.
5.6.1

Permanent power limitation

Permanent power limitation is useful to assure a maximum power or
current input of the system. In some countries, legislation limits the
maximum power consumption for space heating and DHW
production.
P
i
a
DI
b
t
P Power input
i
t Time
DI Digital input (power limitation level)
a Power limitation active
b Actual power input
Setup and configuration
▪ No additional equipment needed.
▪ Set the power consumption control settings in [9.9] via the user
interface (for the description
"8 Configuration" on page 36):
▪ Select continuous limitation mode
▪ Select the type of limitation (power in kW or current in A)
▪ Set the desired power limitation level
NOTICE
Set a minimum power consumption of ±3.6 kW to
guarantee:
▪ Defrost operation. Otherwise, if defrosting is interrupted
several times, the heat exchanger will freeze up.
▪ Space heating and DHW production by allowing the
backup heater step 1.
of all settings, see
Installer reference guide
15