Setting Up An Indirect Auxiliary Heat Source For Domestic Hot Water And Space Heating - Daikin Altherma 3 H MT ECH2O Installer's Reference Manual

6.3.2 Setting up an indirect auxiliary heat source for domestic hot water and space heating

EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1 – 2021.07
T (°C)
min
60
50
40
30
20
10
0
–30 –25 –20
T Outdoor temperature
a
T Minimum weather-dependent setpoint for auxiliary gas boiler
min
The auxiliary boiler (field supply) is connected to the storage tank. It can do the
domestic hot water heating and, if allowed by the user, space heating via tank
heating support. Whether heat pump or auxiliary boiler operates, depends on
outdoor and storage tank temperatures.
Setup
1 Integrate the 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 Auxiliary boiler (field supply)
c BIV connector kit (EKECBIVCOA) (optional)
d Shut-off valve (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.
–15 –10 –5
B
A
c
e
d
6 Application guidelines
|
0 5
T (°C)
a
a
b
Installer reference guide
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