5 Application guidelines
Installer reference guide
11
EGSQH10S18AA9W
Daikin Altherma ground source heat pump
4P351748-1D – 2016.02
▪ 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
Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
2 (RT control): Unit operation is
decided based on the ambient
temperature of the user interface.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
Benefits
▪
Cost effective
.
▪
Easy
. Same installation as for one room, but with thermostatic
valves.
Under floor heating or radiators – Multiple external
room thermostats
Setup
M2
M1
B
C
A
a
a
b
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 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 rate as described in
"6.3.3 To check the water volume and flow rate of the space
heating circuit and brine circuit" on page 20
.
▪ 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
Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
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
Setup
B
A
a
a
C
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 heating demand signals of each heat pump convector are
connected in parallel to the digital input on the indoor unit (X2M/1
and X2M/4). 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
Value
Unit temperature control:
▪ #: [A.2.1.7]
▪ Code: [C-07]
1 (Ext RT control): Unit operation
is decided by the external
thermostat.
Number of water temperature
zones:
▪ #: [A.2.1.8]
▪ Code: [7-02]
0 (1 LWT zone): Main
Benefits
Compared with heat pump convectors for one room:
