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Application guidelines
Installer reference guide
32
EPGA11~16DAV3(7) + EA23DA6V(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).
Summary of Contents for Altherma 3 H F
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