Daikin Altherma 3 H F - Weather-Dependent Curve Control

6 | Application guidelines
Installer reference guide
40
EPGA11~16DAV3(7) + EAVZ16S18+23DA6V(7)+9W
Daikin Altherma 3 H F
4P556075-1A – 2021.09
6.5 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.
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.
6.5.1 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.