Daikin Altherma ERLQ004CAV3 Installer's Reference Manual page 46

8 Configuration
Thermostats and external sensors
See "5 Application guidelines" on page 10.
# Code
[A.2.2.4] [C­05] 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 "5 Application
guidelines" on page 10.
▪ 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 separate heating demand and
is therefore connected to the 2 digital
input (preserved for the main leaving
water temperature zone) on the indoor
unit (X2M/1 and 2). Select this value in
case of connection with the wired
(EKRTWA) or wireless (EKRTR1)
room thermostat.
[A.2.2.5] [C­06] 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 "5 Application
guidelines" on page 10.
▪ 1 (Thermo ON/OFF): See Contact
type main. Connected on the indoor
unit (X2M/1a).
▪ 2 (C/H request)(default): See Contact
type main. Connected on the indoor
unit (X2M/1a and 2a).
[A.2.2.B] [C­08] 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 used for
measurement.
▪ 1 (Outdoor sensor): Installed. The
outdoor sensor will be used to
measure
temperature. Remark: For some
functionality, the temperature sensor
in the outdoor unit is still used.
▪ 2 (Room sensor): Installed. The
temperature sensor in the user
interface is NOT used anymore.
Remark: This value has only meaning
in room thermostat control.
Installer reference guide
46
Description
to the heat pump
(C/H request)(default): The
the outdoor ambient
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] [C­02] Ext. backup heat src
Indicates if the space heating is also
performed by means of an other 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
"5 Application guidelines" on page 10.
[A.2.2.6.3] [C­09] 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
malfunctioning and detection of a
power failure of the unit.
▪ 1 (Normally closed): The alarm output
will NOT be powered when an alarm
occurs.
Alarm output logic
[C-09] Alarm
0 (default) Closed output
1 Open output
Demand PCB
The demand PCB is used to enable the power consumption control
by digital inputs. See "5 Application guidelines" on page 10.
# Code
[A.2.2.7] [D­04] Demand PCB
Indicates if the optional demand PCB is
installed.
▪ 0 (No)(default): NOT installed.
▪ 1 (Yes): Installed. Power consumption
control by digital inputs is selectable in
[A.6.2.1].
ERLQ004~008CA + EHVH04+08S18CA3VF
"5 Application
Description
boiler is used. See
is made between
No alarm No power
supply to unit
Open output Open output
Closed output
Description
Daikin Altherma low temperature split
4P366226­1 – 2014.01