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Possible DHW tank volumes
Type
Standalone DHW tank
Energy saving tips
▪ If the DHW consumption differs from day to day, you can program
a weekly schedule with different desired DHW tank temperatures
for each day.
▪ The lower the desired DHW tank temperature, the more cost
effective. By selecting a larger DHW tank, you can lower the
desired DHW tank temperature.
▪ 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, we recommend to produce the domestic hot
water during the night when there is lower space heating demand.
7.4.3
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
▪ Gas boiler
▪ For more information about:
▪ Optimizing the energy consumption for producing domestic hot
water, see
"10 Configuration" on
▪ Connecting the electrical wiring of the standalone DHW tank to
the gas boiler, see the installation manual of the DHW tank and
the addendum book for optional equipment.
▪ Connecting the water piping of the standalone DHW tank to the
gas boiler, see the installation manual of the DHW tank, the
addendum book for optional equipment, and
electrical wiring to the gas boiler" on
7.4.4
DHW pump for instant hot water
Setup
a
b
c
e
f
d
a
Outdoor unit
b
Gas boiler
c
Tank
d
Cold water
e
Shower
f
Domestic hot water pump
▪ By connecting a DHW pump, instant hot water can be available at
the tap.
EJHA04AAV3 + NHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P556861-1A – 2019.05
Possible volumes
▪ 150 l
▪ 180 l
▪ 200 l
▪ 250 l
▪ 300 l
▪ 500 l
page 56.
"To connect the
page 44.
7 Application guidelines
▪ The DHW pump and the installation are field supply and the
responsibility of the installer.
▪ For
more
information
about
connection, see the installation manual of the domestic hot water
tank.
Configuration
▪ For more information, see
"10 Configuration" on
▪ You can program a schedule to control the DHW pump via the
user interface. For more information, see the user reference
guide.
7.4.5
DHW pump for disinfection
Setup
a
b
c
f
g e
h d
a
Outdoor unit
b
Gas boiler
c
Tank
d
Cold water
e
Shower
f
Domestic hot water pump
g
Heater element
h
Non‑return valve
▪ The DHW pump is field-supplied and its installation is the
responsibility of the installer.
▪ If using a third-party DHW tank of which the specifications are
lower than those of a dedicated tank, the temperature of the DHW
tank must be set to maximum 60°C. If applicable legislation
requires higher temperature for disinfection, 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 outdoor unit can control DHW pump operation. For more
information, see
"10 Configuration" on
7.5
Setting up the energy metering
▪ Via the user interface, you can read out the following energy data:
▪ Consumed energy (electricity)
▪ Consumed gas (only in case of NHY2KOMB28+32AA gas
boiler)
▪ 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
consumed
consumed gas are estimations, the accuracy cannot be
guaranteed.
7.5.1
Consumed energy
You can use the following methods to determine the consumed
energy:
connecting
the
recirculation
page 56.
page 56.
energy
(electricity)
and
Installer reference guide
23
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