Power Limitation Process - Daikin EPRA14DAW1 Installer's Reference Manual
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Also See for EPRA14DAW1:
- Installer's reference manual (308 pages) ,
- Installation manual (40 pages) ,
- Installer's reference manual (260 pages)
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5
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Application guidelines
5.6.3 Power limitation process
Installer reference guide
52
Setup
▪
Demand PCB (option EKRP1AHTA) needed.
▪
Maximum four digital inputs are used to activate the corresponding power
limitation level:
-
DI1 = strongest limitation (lowest energy consumption)
-
DI4 = weakest limitation (highest energy consumption)
▪
Specification of the digital inputs:
DI 1
S9S
DI 2
S8S
DI 3
S7S
DI 4
S6S
▪
Refer to the wiring diagram for more information.
Configuration
▪
Set the power consumption control settings in [9.9] via the user interface (for the
description of all settings, see
-
Select limitation 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.
INFORMATION
In case more than 1 digital input is closed (at the same time), the digital input priority
is fixed: DI4 priority>...>DI1.
The outdoor unit has better efficiency than the electrical heater. Therefore, the
electrical heater is limited and turned OFF first. The system limits power
consumption in the following order:
1
Turns OFF the backup heater.
2
Limits the outdoor unit.
3
Turns OFF the outdoor unit.
Example
If the configuration is as follows: Power limitation level does NOT allow operation
of backup heater (step 1).
Then power consumption is limited as follows:
P
h
c
b
a
A
B
P
Produced heat
h
C
Consumed energy Consumed energy
e
A
Outdoor unit
B
Backup heater
a
Limited outdoor unit operation
limit 1
limit 2
limit 3
limit 4
"Power consumption
C
e
4
control" [
184]):
EPRA14~18DAV3+W1 + ETVH/X16S18+23DA6V+9W(G)
Daikin Altherma 3 H HT F
4P587502-1A – 2020.01
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