Daikin Altherma EAVH16S23DA6V, Installer'S Reference Manual

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6 | Application guidelines
Installer reference guide
36
EPGA11~16DAV3(7) + EAVH/23DA6V(7)+9W(7)
Daikin Altherma 3 H F
4P556070-1A – 2021.09
▪ 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 underfloor 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:
▪ #: [2.9]
▪ Code: [C-07]
2 ( Room thermostat ): Unit operation
is decided based on the ambient
temperature of the user interface.
Number of water temperature zones:
▪ #: [4.4]
▪ Code: [7-02]
0 ( Single zone ): Main
Benefits
▪ Easy . Same installation as for one room, but with thermostatic valves.
Underfloor heating or radiators – Multiple external room thermostats
Setup
M1
M2
C B
a
b
a
A
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
"8.1 Preparing water piping" [
4
71].
▪ 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.