Daikin ERLA03DAV3 - Setting up the Power Consumption Control; Permanent Power Limitation

6 | Application guidelines
Installer reference guide
44
ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1B – 2021.10
Power meter types
Single-phase power meter.
6.6 Setting up the power consumption control
You can use the following power consumption controls. For more information
about the corresponding settings, see "10.4 Advanced configuration/
optimisation"[4129].
# Power consumption control
1 "6.6.1Permanent power limitation"[444]
▪ 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 "6.6.2Power limitation activated by digital inputs"[445]
▪ 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.
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.
▪ Anti-legionella operation.
6.6.1 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
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.