Daikin Altherma EAVX-D9WG Installer's Reference Manual page 13

B Room 1
C Room 2
a User interface used as room thermostat
▪ The under floor heating of the main room is directly connected to
the indoor unit.
▪ The room temperature of the main room is controlled by the user
interface used as a room thermostat (optional equipment BRC1H).
▪ A thermostatic valve is installed before the under floor heating in
each of the other rooms.
INFORMATION
Mind situations where the main room can be heated by
another heating source. Example: Fireplaces.
Configuration
Setting
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
Number of water temperature
zones:
▪ #: [4.4]
▪ Code: [7-02]
Benefits
▪ Easy. Same installation as for one room, but with thermostatic
valves.
Under floor heating or radiators – Multiple external
room thermostats
Setup
A Main leaving water temperature zone
B Room 1
C Room 2
a External room thermostat
b Bypass valve
▪ 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. To guarantee reliable
operation, provide a minimum water flow as described in table "To
check the water volume and flow rate" in
piping" on page 23.
▪ The user interface connected on 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.
EPGA11~16DAV3 + EAVH/X16S18+23DA6V+9W
Daikin Altherma – Low temperature split
4P556070-1 – 2019.02
Value
2 (Room thermostat): Unit
operation is decided based on
the ambient temperature of the
user interface.
0 (Single zone): Main
A
B C
b
M1 M2
a a
"6.3 Preparing water
5 Application guidelines
Configuration
Setting
Unit temperature control:
▪ #: [2.9]
▪ Code: [C-07]
Number of water temperature
zones:
▪ #: [4.4]
▪ Code: [7-02]
Benefits
Compared with under floor heating or radiators for one room:
▪ Comfort. You can set the desired room temperature, including
schedules, for each room via the room thermostats.
Heat pump convectors – Multiple rooms
Setup
A Main leaving water temperature zone
B Room 1
C Room 2
a Remote controller of the heat pump convectors
▪ The desired room temperature is set via the remote controller of
the heat pump convectors.
▪ The user interface connected on 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, Daikin recommends
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.
Value
0 (Leaving water): Unit operation
is decided based on the leaving
water temperature.
0 (Single zone): Main
A
C
B
a a
Value
1 (External room thermostat):
Unit operation is decided by the
external thermostat.
0 (Single zone): Main
Installer reference guide
13