Daikin Altherma ERLQ004-006-008CA Reference Manual page 43

User interface at External room
indoor unit thermostat at main
NOTICE
If an external room thermostat is used, the external room
thermostat will control the room frost protection. However,
the room frost protection is only possible if the leaving
water temperature control on the unit's user interface is
turned ON.
See "5 Application guidelines" on
# Code
[A.2.2.4] [C-05] Contact type main
In external room thermostat control, the
contact type of the optional room
thermostat or heat pump convector for
the main leaving water temperature zone
must be set. See
guidelines" on
▪ 1 (Thermo ON/OFF): The connected
external room thermostat or heat
pump convector sends the heating
demand by the same signal as it is
connected to only 1 digital input
(preserved for the main leaving water
temperature zone) on the indoor unit
(X2M/1). Select this value in case of a
connection
convector (FWXV).
▪ 2
connected external room thermostat
sends a heating demand and is
connected
(preserved for the main leaving water
temperature zone) on the indoor unit
(X2M/1). Select this value in case of
connection with the wired (EKRTWA)
or
thermostat.
[A.2.2.5] [C-06] Contact type add.
In external room thermostat control with
2 leaving water temperature zones, the
type of the optional room thermostat for
the additional leaving water temperature
zone must be set. See
guidelines" on
▪ 1 (Thermo ON/OFF): See Contact
type main. Connected on the indoor
unit (X2M/1a).
▪ 2 (H/C request)(default): See Contact
type main. Connected on the indoor
unit (X2M/1a).
ERLQ004~008CA + EHVZ04+08S18CB
Daikin Altherma – Low temperature split
4P401676-1 – 2015.02
External room
thermostat at
zone additional zone
page 10.
Description
"5 Application
page 10.
to the heat pump
(H/C request)(default):
to the digital input
wireless (EKRTR1) room
"5 Application
page 10.
# Code
[A.2.2.B] [C-08]
Digital I/O PCB
Modification of these settings is only needed when the optional
digital I/O PCB is installed. The digital I/O PCB has multiple
functionality which need to be configured. See
guidelines" on page 10.
# Code
[A.2.2.6.1] [C-02]
[A.2.2.6.2] [D-07]
[A.2.2.6.3] [C-09]
The
[A.2.2.6.4] [F-04]
Alarm output logic
[C-09]
0 (default) Closed output
1 Open output
8 Configuration
Description
External sensor
When an optional external ambient
sensor is connected, the type of the
sensor must be set. See "5 Application
guidelines" on page 10.
▪ 0 (No)(default): NOT installed. The
thermistor in the user interface and in
the outdoor unit are
measurement.
▪ 1 (Outdoor sensor): Installed. The
external outdoor sensor will be used to
measure the outdoor
temperature. Remark:
functionality, the temperature sensor
in the outdoor unit is still used.
▪ 2 (Room sensor): Installed.
temperature sensor in
interface is NOT used anymore.
Remark: This value has only meaning
in room thermostat control.
"5 Application
Description
Not applicable.
Not applicable (read only).
Alarm output
Indicates the logic of the alarm output on
the digital I/O PCB during
malfunctioning.
▪ 0 (Normally open)(default): The alarm
output will be powered when an alarm
occurs. By setting this value, a
distinction is made
malfunctioning and detection of a
power failure of the unit.
▪ 1 (Normally closed): The alarm output
will NOT be powered when an alarm
occurs.
Bottom plate heater
Only applicable for EHVZ16. Indicates if
an optional bottom plate heater is
installed on the outdoor unit. The power
of the bottom plate heater is in this case
supplied by the indoor unit.
▪ 0 (No)(default): NOT installed.
▪ 1 (Yes): Installed. Remark: If this
value is set, the output on the digital I/
O PCB cannot be used for space
heating output. See "5 Application
guidelines" on page 10.
Alarm No alarm
supply to unit
Open output Open output
Closed output
Installer reference guide
used for
ambient
For some
The
the user
between
No power
43