Power Limitation Activated By Digital Inputs - Daikin Altherma 3 R F Installer's Reference Manual
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Also See for Altherma 3 R F:
- Installer's reference manual (312 pages) ,
- User reference manual (64 pages) ,
- Installation manual (48 pages)
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5.6.2 Power limitation activated by digital inputs
ERLA03DAV3 + EHFH03S18DJ3V
Daikin Altherma 3 R F
4P596806-1 – 2019.10
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...).
C
a
5
4
3
A8P
2
1
b
A
B
A
Outdoor unit
B
Indoor unit
C
Energy management system
a
Power limitation activation (4 digital inputs
b
Backup heater
P
i
a
DI1
DI3
DI4
P
Power input
i
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.
Configuration
▪
Set the power consumption control settings in [A.6.3.1] via the user interface (for
the description of all settings, see "9 Configuration" [
-
Select activation by digital inputs.
-
Select the type of limitation (power in kW or current in A).
-
Set the desired power limitation level corresponding to each digital input.
b
t
5
Application guidelines
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4
108]):
Installer reference guide
45
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