Setup And Configuration - Dhw Tank; Dhw Pump For Instant Hot Water; Dhw Pump For Disinfection; Setting Up The Energy Metering - Daikin Altherma EHVH08SU18CB6W Installer's Reference Manual

increase this temperature. However, this consumes more energy.
Daikin recommends to set the desired DHW tank temperature
below 55°C to avoid using the electrical resistance.
The booster heater:
▪ Is used as emergency heater.
▪ Is used when the disinfection function for the DHW tank is
active.
▪ Can assist during defrost operation for the outdoor unit.
▪ 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,
Daikin recommends to heat up the DHW tank during the day.
▪ If energy prices are lower during the night, Daikin recommends
to heat up the DHW tank during the night.
▪ When the heat pump produces domestic hot water, it cannot heat
up a space. In case you need domestic hot water and space
heating at the same, Daikin recommends to produce the domestic
hot water during the night when there is lower space heating
demand.
5.4.3 Setup and configuration – DHW tank
▪ 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
▪ Booster heater
▪ For more information about optimizing the energy consumption for
producing domestic hot water, see
5.4.4

DHW pump for instant hot water

Setup
h
j
c
a
i
f
b
g
a Indoor unit
b DHW tank
c DHW pump (field supply)
f Shower (field supply)
g Cold water
h Domestic hot water OUT
i Recirculation connection
j Booster heater
▪ 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 more information about
connection: see "7 Installation" on
Configuration
▪ For more information, see "8 Configuration" on
▪ You can program a schedule to control the DHW pump via the
user interface. For more information, see the user reference
guide.
ERLQ004~008CA + EHVH04+08SU18+26CB6W
Daikin Altherma – Low temperature split
4P449978-1B – 2018.07
"8 Configuration" on page 48.
connecting the recirculation
page 30.
page 48.
5 Application guidelines
5.4.5

DHW pump for disinfection

Setup
h
j
c
a
i
d f
b
e g
a Indoor unit
b DHW tank
c DHW pump (field supply)
d Heater element (field supply)
e Non‑return valve (field supply)
f Shower (field supply)
g Cold water
h Domestic hot water OUT
i Recirculation connection
j Booster heater
▪ The DHW pump is field-supplied and its installation is the
responsibility of the installer.
▪ The temperature of the DHW tank can be set to maximum 65°C. If
applicable legislation requires higher temperature for disinfection,
you can connect a DHW pump and heater element as shown
above.
▪ If applicable legislation requires disinfection of the water piping
until the tapping point, you can connect a DHW pump and heater
element (if needed) as shown above.
Configuration
The indoor unit can control DHW pump operation. For more
information, see "8 Configuration" on
5.5

Setting up the energy metering

▪ Via the user interface, you can read out the following energy data:

▪ Produced heat

▪ Consumed energy
▪ You can read out the energy data:
▪ For space heating
▪ For domestic hot water production
▪ You can read out the energy data:
▪ Per month
▪ Per year
INFORMATION
The calculated produced heat and consumed energy are
an estimation, the accuracy cannot be guaranteed.
5.5.1 Produced heat
INFORMATION
The sensors used to calculate the produced heat are
calibrated automatically.
▪ Applicable for all models.
▪ The produced heat is calculated internally based on:
▪ The leaving and entering water temperature
▪ The flow rate
▪ The power consumption of the booster heater in the domestic
hot water tank
page 48.
Installer reference guide
19