Daikin EGSAH06UDA9W [31/252] Application guidelines

Daikin EGSAH06UDA9W [31/252] Application guidelines
5 | Application guidelines
Installer reference guide
31
EGSAH/X06+10UDA9W
Daikin Altherma 3 GEO
4P598592-1B – 2020.07
Underfloor heating or radiators – Multiple external room thermostats
Setup
M1M2
C B
A
a
c
a
b
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 internal
actuators"[480].
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 Value
Unit temperature control:
#: [2.9]
Code: [C-07]
0 (Leaving water): Unit operation is
decided based on the leaving water
temperature.
Number of water temperature zones:
#: [4.4]
Code: [7-02]
0 (Single zone): Main
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.

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