Setting Up A Solar System Via Bivalent Heat Exchanger; Setting Up An Electric Backup Heater - Daikin ERGA04EAV37 Installer's Reference Manual

6 | Application guidelines

6.3.4 Setting up a solar system via bivalent heat exchanger

6.3.5 Setting up an electric backup heater

Installer reference guide
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a Drainback solar flow connection (optional solar drainback kit)
b Flow sensor (optional solar drainback kit)
c Flow rate limiter (optional)
d Drainback connection
CAUTION
The solar panels MUST be installed higher than the indoor unit. A downward slope
with minimum gradient of the solar piping MUST be guaranteed. This is to allow the
solar system to completely drain and thereby to avoid frost damages.
Configuration
Via the user interface:
▪ Select, whether all other heat sources are stopped, when solar energy is
provided.
▪ Select tank temperature, above which all other heat sources are stopped, when
solar energy is provided.
See "Intelligent tank manager" [
Setup
1 Integrate the solar system as follows:
a Bivalent heat exchanger IN (red)
b Bivalent heat exchanger OUT (blue)
Configuration
Via the user interface:
▪ Select, whether all other heat sources are stopped, when solar energy is
provided.
▪ Select tank temperature, above which all other heat sources are stopped, when
solar energy is provided.
See "Intelligent tank manager" [
INFORMATION
For systems without indirect auxiliary boiler connected to the storage tank, it is
mandatory to install an electric backup heater to ensure safe operation for all
conditions.
4
230] for more information on configuration.
a
b
4
230] for more information on configuration.
ERGA04~08EAV3+V3A+V37 + EHSH/X(B)04+08P30+50EF
Daikin Altherma 3 R ECH₂O
4P678716-1A – 2022.07