Daikin Altherma 3 H F - Page 32

6 | Application guidelines
Installer reference guide
32
EPGA11~16DAV3(7) + EAVZ16S18+23DA6V(7)+9W
Daikin Altherma 3 H F
4P556075-1A – 2021.09
C Room 2
D Main leaving water temperature zone
E Room 3
a Outdoor unit
b Indoor unit
c Heat exchanger
d Backup heater
e Motorised 3-way valve (mixing the main zone)
f Additional pump
g Main pump
h Shut-off valve
i Collector (field supply)
j Remote controller of the heat pump convectors (field supply)
k User interface used as room thermostat
HPC1...3 Heat pump convectors (field supply)
FHL1...3 Floor heating loops (field supply)
▪ For the main zone: the room temperature is controlled by the user interface,
which is used as room thermostat (optional equipment EKRUDAS).
▪ For the additional zone:
- The external thermostat is directly connected to the indoor unit.
- The desired room temperature is set via the external thermostat and the
thermostatic valves of the radiators in each room.
- The heating demand signal from the external thermostat is connected to the
digital input on the indoor unit (X2M/35a and X2M/30). The indoor unit will
only supply the desired additional leaving water temperature when there is an
actual demand.
Configuration
Setting Value
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
2 (Room thermostat): Unit operation
is decided based on the ambient
temperature of the user interface.
Note:
▪ Main room = user interface used as
room thermostat functionality
▪ Other rooms = external room
thermostat functionality
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
1 (Dual zone): Main + additional
In case of heatpump convectors:
External room thermostat for the
additional zone:
▪ #: [3.A]
▪ Code: [C-06]
1 (1 contact): When the used
external room thermostat or heatpump
convector can only send a thermo ON/
OFF condition.
Shut-off valve output Set to follow the thermo demand of the
main zone.
Benefits
▪ Comfort. The smart room thermostat functionality can decrease or increase the
desired leaving water temperature based on the actual room temperature
(modulation).