Daikin EK2CB07CAV3, Installer'S Reference Manual

Page: 20 / 122

5 Application guidelines
Installer reference guide
20
EKCB
EK2CB EKMBU EKMBUHCA9W1
Daikin Altherma low temperature monobloc
4P405544-1 – 2015.03
Formula Example
V
2
=V
1
×(40−T
1
)/(T
2
−T
1
) If:
▪ V
1
=480 l
▪ T
2
=54°C
▪ T
1
=15°C
Then V
2
=307 l
V
1
DHW consumption (equivalent hot water volume at 40°C)
V
2
Required DHW tank volume if only heated once
T
2
DHW tank temperature
T
1
Cold water temperature
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
▪ Electrical booster heater
▪ For more information about:
▪ Optimizing the energy consumption for producing domestic hot
water, see "8 Configuration" on page 48 .
▪ Connecting the electrical wiring of the domestic hot water tank
to control box EKCB07CAV3, see the installation manual of the
domestic hot water tank.
▪ Connecting the water piping of the domestic hot water tank to
the outdoor unit, see the installation manual of the domestic hot
water tank.
5.4.4 DHW pump for instant hot water
Setup
c
e
a
f
d
b
h
g
a Outdoor unit
b Domestic hot water tank
c Domestic hot water pump
d Control box
e Shower
f Cold water
g Domestic hot water OUT
h 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 more information about the recirculation connection, see
"7.8.9 To connect the domestic hot water pump" on page 43 , and
the installation manual of the domestic hot water tank.
Configuration
▪ For more information, see "8 Configuration" on page 48 .
▪ You can program a schedule to control the DHW pump via the
user interface. For more information, see the user reference
guide.
5.4.5 DHW pump for disinfection
Setup
c
h
b
a
d f
i
e g
h
a Outdoor unit
b Domestic hot water tank
c Domestic hot water pump
d Heater element
e Non‑return valve
f Shower
g Cold water
h Control box
i Domestic hot water OUT
j Recirculation connection
▪ 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 70°C. If
the applicable legislation requires a 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.
▪ For more information about the recirculation connection, see
"7.8.9 To connect the domestic hot water pump" on page 43 , and
the installation manual of the domestic hot water tank.
Configuration
The outdoor unit can control DHW pump operation. For more
information, see
"8 Configuration" on page 48 .
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 space cooling
▪ 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.