Daikin ERLA03DAV3, Руководство по установке для специалистов, Страница: 32 / 192

5 | Application guidelines
Installer reference guide
32
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1A – 2020.05
Power meter types
Single-phase power meter.
5.5 Setting up the power consumption control
You can use the following power consumption controls. For more information
about the corresponding settings, see
"9.4 Advanced configuration/
optimisation" [
4
114].
# Power consumption control
1 "5.5.1 Permanent power limitation" [ 4 32]
▪ Allows you to limit the power consumption of the entire heat pump
system (sum of indoor unit and backup heater) with one permanent
setting.
▪ Limitation of power in kW or current in A.
2 "5.5.2 Power limitation activated by digital inputs" [ 4 33]
▪ Allows you to limit the power consumption of the entire heat pump
system (sum of indoor unit and backup heater) via 4 digital inputs.
▪ Limitation of power in kW or current in A.
5.5.1 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
t
DI
a
b
P
i
Power input
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 [A.6.3.1] via the user interface (for
the description of all settings, see
"9 Configuration" [
4
96]):
- Select full time 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.