Daikin Altherma 3 GEO Series Installer's Reference Manual page 14

5 Application guidelines
Underfloor heating or radiators – Multiple external
room thermostats
Setup
C B
c
M2 M1
a a
A Main leaving water temperature zone
B Room 1
C Room 2
a External room thermostat
b Remote outdoor sensor
c Bypass valve
▪ For more information about connecting the electrical wiring to the
unit, see "8.2 Overview of electrical connections for external and
actuators" [ 4 33].
internal
▪ For each room, a shut-off valve (field supplied) is installed to avoid
leaving water supply when there is no heating or cooling demand.
▪ A bypass valve must be installed to make water recirculation
possible when all shut-off valves are closed.
▪ The user interface integrated in the indoor unit decides the space
operation mode. Mind that the operation mode on each room
thermostat must be set to match the indoor unit.
▪ The room thermostats are connected to the shut-off valves, but do
NOT have to be connected to the indoor unit. The indoor unit will
supply leaving water all the time, with the possibility to program a
leaving water schedule.
Configuration
Setting
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
Number of water temperature
zones:
▪ #: [4.4]
▪ Code: [7-02]
Benefits
Compared with underfloor heating or radiators for one room:
▪ Comfort. You can set the desired room temperature, including
schedules, for each room via the room thermostats.
Installer reference guide
14
A
b
Value
0 (Leaving water): Unit
operation is decided based on
the leaving water temperature.
0 (Single zone): Main
Heat pump convectors – Multiple rooms
Setup
C B
A
a a
A Main leaving water temperature zone
B Room 1
C Room 2
a Remote controller of the heat pump convectors
b Remote outdoor sensor
▪ For more information about connecting the electrical wiring to the
unit, see "8.2 Overview of electrical connections for external and
actuators" [ 4 33].
internal
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
▪ The user interface integrated in the indoor unit decides the space
operation mode.
▪ The heating or cooling demand signals of each heat pump
convector are connected in parallel to the digital input on the
indoor unit (X2M/35 and X2M/30). The indoor unit will only supply
leaving water temperature when there is an actual demand.
INFORMATION
To increase comfort and performance, we recommend to
install the valve kit option EKVKHPC on each heat pump
convector.
Configuration
Setting
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
Number of water temperature
zones:
▪ #: [4.4]
▪ Code: [7-02]
Benefits
Compared with heat pump convectors for one room:
▪ Comfort. You can set the desired room temperature, including
schedules, for each room via the remote controller of the
heat pump convectors.
b
Value
1 (External room
thermostat): Unit operation is
decided by the external
thermostat.
0 (Single zone): Main
EGSAH/X06+10DA9W(G)
Daikin Altherma 3 GEO
4P569820-1A – 2019.09