Power Limitation Process; Setting Up An External Temperature Sensor - Daikin Altherma 3 R F Installer's Reference Manual

5.5.3 Power limitation process

5.6 Setting up an external temperature sensor

ERLA03DAV3 + EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1 – 2019.10
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
C
A B
P Produced heat
h
C Consumed energy Consumed energy
e
A Outdoor unit
B Backup heater
a Limited outdoor unit operation
b Full outdoor unit operation
c Backup heater step 1 turned ON
You can connect one external temperature sensor. It measures the indoor or
outdoor ambient temperature. We recommend to use an external temperature
sensor in the following cases:
Indoor ambient temperature
▪ In room thermostat control, the user interface is used as room thermostat and it
measures the indoor ambient temperature. Therefore, the user interface must
be installed on a location:
- Where the average temperature in the room can be detected
- That is NOT exposed to direct sunlight
- That is NOT near a heat source
- That is NOT affected by outside air or air draught because of, for example, door
opening/closing
▪ If this is NOT possible, we recommend to connect a remote indoor sensor (option
KRCS01-1).
▪ Setup: For installation instructions, see the installation manual of the remote
indoor sensor.
e
5 Application guidelines
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Installer reference guide
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