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Configuration
Installer reference guide
121
ERLA EHFZ03S18DJ3V
Daikin Altherma 3 R F
4P596821-1B – 2021.10
#
Code
Description
[A.2.2.B]
[C-08]
External sensor
When an optional external
ambient sensor is connected, the type of the
sensor must be set.
▪
0 (
No
: NOT installed. The thermistor in the user
interface and in the outdoor unit are used for
measurement.
▪
1 (
Outdoor sensor
): Connected to PCB of
the indoor unit measuring the
outdoor
temperature
.
Remark:
:
For
some
functionality, the temperature sensor in the
outdoor unit is still used.
▪
2 (
Room sensor
): Connected to PCB of the
indoor
unit
measuring
the
indoor
temperature
. The temperature sensor in the
user interface is NOT used anymore.
Remark:
;
This value only has meaning in room
thermostat control.
Digital I/O PCB
#
Code
Description
N/A
[C-02]
Ext. backup heat src
Indicates if the space heating is also performed
by means of another heat source than the
system.
▪
0 (
No
)(default): NOT installed.
▪
1 (
Bivalent
): Installed. The auxiliary boiler
(gasboiler, oil burner) will operate when the
outdoor ambient temperature is low. During
the bivalent operation, the heat pump is turned
OFF. Set this value in case an auxililary boiler is
used. See
31].
N/A
[C-09]
Alarm output
Indicates the logic of the alarm output on the
digital I/O PCB during malfunctioning.
▪
0 (
Normally open
): The alarm output will be
powered when an alarm occurs. By setting this
value, a distinction is made between the
detection of an alarm, and the detection of a
power failure.
▪
1 (
Normally closed
): The alarm output will
NOT be powered when an alarm occurs.
Alarm output logic
[C-09]
Alarm
No alarm
No power supply
to unit
0 (default)
Closed output
Open output
Open output
