Daikin Altherma 3 R ECH2O Installer's Reference Manual page 51

ERLA11~16DAV3+W1 + EBSH/X(B)11+16P30+50DF
Daikin Altherma 3 R ECH₂O
4P663482-1B – 2022.07
INFORMATION
▪
During heating operation of the heat pump, the heat pump operates to achieve
the desired temperature set via the user interface. When weather-dependent
operation is active, the water temperature is determined automatically
depending on the outdoor temperature.
▪
During heating operation of the auxiliary boiler, the auxiliary boiler operates to
achieve the desired water temperature set via the auxiliary boiler controller.
Setup
▪ Integrate the direct (SH) auxiliary boiler as follows:
A Main leaving water temperature zone
B One single room
a Dedicated Human Comfort Interface (BRC1HHDA used as room thermostat)
b Non-return valve (field supply)
c Shut-off valve (field supply)
d Auxiliary boiler (field supply)
e Aquastat valve (field supply)
NOTICE
▪
Make sure the auxiliary boiler and its integration in the system complies with
applicable legislation.
▪
Daikin is NOT responsible for incorrect or unsafe situations in the auxiliary boiler
system.
▪ Make sure the return water to the heat pump does NOT exceed 60°C. To do so:
- Set the desired water temperature via the auxiliary boiler controller to
maximum 60°C.
- Install an aquastat valve in the return water flow of the heat pump. Set the
aquastat valve to close above 60°C and to open below 60°C.
▪ Install non-return valves.
▪ The external heat source is controlled by the ON/OFF signal on the indoor unit
(X12M/3 and X12M/4). See
4
source" [ 146].
▪ To setup the heat emitters, see
4
system" [ 34].
Configuration
Via the user interface (configuration wizard):
▪ Set the use of a direct (SH) bivalent system as external heat source.
6
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a
e
c
d
c
b
A
b
B
"9.3.10 To connect the changeover to external heat
"6.2 Setting up the space heating/cooling
Application guidelines
Installer reference guide
51