Daikin Altherma 3 GEO Series - Power Limitation Activated by Digital Inputs

5 | Application guidelines
Installer reference guide
47
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1A – 2019.12
▪ Set the power consumption control settings in [9.9] via the user interface (see
"Power consumption control"[4190]):
- Select continuous limitation mode
- Select the type of limitation (power in kW or current in A)
- Set the desired power limitation level
5.6.2 Power limitation activated by digital inputs
Power limitation is also useful in combination with an energy management system.
The power or current of the entire Daikin system is limited dynamically by digital
inputs (maximum four steps). Each power limitation level is set via the user
interface by limiting one of the following:
▪ Current (in A)
▪ Power input (in kW)
The energy management system (field supply) decides the activation of a certain
power limitation level. Example: To limit the maximum power of the entire house
(lighting, domestic appliances, space heating…).
a
b
A
B
1
2
3
4
5
A8P
A Indoor unit
B Energy management system
a Power limitation activation (4 digital inputs)
b Backup heater
P
i
t
DI4
DI3
DI1
a
b
P
i
Power input
t Time
DI Digital inputs (power limitation levels)
a Power limitation active
b Actual power input
Setup
▪ Demand PCB (option EKRP1AHTA) needed.
▪ Maximum four digital inputs are used to activate the corresponding power
limitation level:
- DI1 = weakest limitation (highest energy consumption)
- DI4 = strongest limitation (lowest energy consumption)
▪ For the specifications of the digital inputs, and for where to connect them, refer
to the wiring diagram.