Installer reference guide
17
08 + ERLQ004~008
Daikin Altherma - Low Temperature Split
4P313774-1 – 2012.05
5 Application guidelines
5.4.7 DHW pump for disinfection
Setup
Q
The DHW pump and the installation are field supply and the
responsibility of the installer.
Q
For the integrated DHW tank, the temperature of the DHW tank
can be set to maximum 60°C. If applicable legislation requires
higher temperature for disinfection, you can connect a DHW
pump and heater element as shown above.
Q
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 the configuration chapter.
5.5
Setting up the energy metering
Q
Via the user interface, you can read out the following energy
data:
Q
Produced heat
Q
Consumed energy
Q
You can read out the energy data:
Q
For space heating
Q
For space cooling
Q
For domestic hot water production
Q
You can read out the energy data:
Q
Per month
Q
Per year
5.5.1 Produced heat
Q
Applicable for all models.
Q
The produced heat is calculated internally based on:
Q
The leaving and entering water temperature
Q
The flow rate
Q
The power consumption of the booster heater (if applicable)
in the domestic hot water tank
Q
Setup and configuration:
Q
No additional equipment needed.
Q
Only in case a booster heater is present in the system,
measure its capacity (resistance measurement) and set the
capacity via the user interface. Example: If you measure a
booster heater resistance of 17.1
Ω
, the capacity of the
heater at 230 V is 3100 W.
5.5.2 Consumed energy
You can use the following methods to determine the consumed
energy:
Q
Calculating
Q
Measuring
Calculating the consumed energy
Q
Only applicable for EHBH/X04+08 and EHVH/X04+08.
Q
The consumed energy is calculated internally based on:
Q
The actual power input of the outdoor unit
Q
The set capacity of the backup heater and booster heater
Q
The voltage
Q
Setup and configuration: To get accurate energy data, measure
the capacity (resistance measurement) and set the capacity via
the user interface for:
Q
The backup heater (step 1 and step 2)
Q
The booster heater
Measuring the consumed energy
Q
Applicable for all models.
Q
Preferred method because of higher accuracy.
Q
Requires external power meters.
Q
Setup and configuration:
Q
For the specifications of each type of meter, see technical
data.
Q
When using electrical power meters, set the number of
pulses/kWh for each power meter via the user interface.
Consumed energy data for EHVH/X16 and EHBH/X16
models will only be available if this setting is configured.
5.5.3 Normal kWh rate power supply
General rule
One power meter that covers the entire system is sufficient.
Setup
Connect the power meter to X5M/7 and X5M/8.
Power meter type
a
Indoor unit
b
DHW tank
c
DHW pump
d
Heater element
e
Non-return valve
f
Shower
g
Cold water
h
Domestic hot water OUT
i
Recirculation connection
c
a
b
d
f
e
g
h
i
NOTICE
You cannot combine calculating the consumed energy
(example: for backup heater) and measuring the consumed
energy (example: for outdoor unit). If you do so, the energy
data will be invalid.
NOTICE
When measuring the electrical power consumption, make
sure ALL power input of the system is covered by the
electrical power meters.
In case of…
Use a… power meter
Q
Single-phase outdoor unit
Q
Backup heater supplied
from a single-phase grid (i.e.
the backup heater model is
*3V or *9W connected to a
single-phase grid)
Single-phase
In other cases (i.e. a three-phase
outdoor unit and/or a 9W*
backup heater model connected
to a three-phase grid)
Three-phase
