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6.4.3 Setup and configuration – DHW tank
6.4.4 DHW pump for instant hot water
ERLA11~16D + EBVH16SU23D
Daikin Altherma 3 R F
4P655196-1A – 2022.05
▪
The heat pump itself can produce domestic hot water of maximum 55°C (lower if
the outdoor temperature is low). The electrical resistance integrated in the
heat pump can increase this temperature. However, this consumes more energy.
We recommend to set the desired DHW tank temperature below 55°C to avoid
using the electrical resistance.
▪
The higher the outdoor temperature, the better the performance of the
heat pump.
-
If energy prices are the same during the day and the night, we recommend to
heat up the DHW tank during the day.
-
If energy prices are lower during the night, we recommend to heat up the DHW
tank during the night.
▪
When the heat pump produces domestic hot water, depending on total heating
demand and the scheduled priority setting, it might not be able to heat up a
space. In case you need domestic hot water and space heating at the same time,
we recommend to produce the domestic hot water during the night when there
is lower space heating demand or during the time when occupants are not
present.
▪
For large DHW consumptions, you can heat up the DHW tank several times
during the day.
▪
To heat up the DHW tank to the desired DHW tank temperature, you can use the
following energy sources:
-
Thermodynamic cycle of the heat pump
-
Electrical backup heater
▪
For more information about optimizing the energy consumption for producing
domestic hot water, see "11 Configuration" [
Setup
a
a Cold water IN
b Hot water OUT (shower (field supply))
c DHW pump (field supply)
d Recirculation connection
▪
By connecting a DHW pump, instant hot water can be available at the tap.
▪
The DHW pump and the installation are field supply and the responsibility of the
installer. For the electrical wiring, see
4
pump" [
135].
4
147].
c
d
"9.3.5 To connect the domestic hot water
6
Application guidelines
|
b
Installer reference guide
53
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