5 Configuration
Installation manual
15
08S23DAV
Daikin Altherma – Low temperature split
4P499571-1D – 2018.11
5.2.3
Configuration wizard: System
Indoor unit type
The indoor unit type is displayed, but cannot be adjusted.
Backup heater type
The backup heater is adapted to be connected to most common
European electricity grids. The type of backup heater must be set on
the user interface. For units with a built-in backup heater, the type of
heater can be viewed but not changed.
#
Code
Description
[9.3.1]
[E‑03]
▪ 0: No heater
▪ 1: External heater
Domestic hot water
The following setting determines if the system can prepare domestic
hot water or not, and which tank is used. This setting is read only.
#
Code
Description
[9.2.1]
[E‑05]
(*)
[E‑06]
(*)
[E‑07]
(*)
▪ Integrated
The anti-legionella heater will also be
used during disinfection.
(*)
Menu structure setting [9.2.1] replaces the following 3
overview settings:
[E-05]
Can the system prepare domestic hot water?
[E-06]
Is a domestic hot water tank installed in the system?
[E-07]
What kind of domestic hot water tank is installed?
Emergency
When the heat pump fails to operate, the optional backup heater and
anti-legionella heater can serve as an emergency heater and either
automatically or non-automatically take over the heat load.
▪ When auto emergency is set to Automatic and a heat pump failure
occurs, the optional backup heater will automatically take over the
heat load, and the anti-legionella heater will automatically take
over the domestic hot water production.
▪ When auto emergency is set to Manual and a heat pump failure
occurs, the domestic hot water and space heating operation will
stop and need to be recovered manually via the user interface. To
recover operation manually, go to the Malfunctioning main menu
screen, where the user interface will then ask you to confirm
whether the optional backup heater or anti-legionella heater can
take over the heat load or not.
We recommend to set Emergency to Automatic if the house is
unattended for longer periods.
#
Code
Description
[9.5]
N/A
▪ 0: Manual
▪ 1: Automatic
INFORMATION
The auto emergency setting can be set in the menu
structure of the user interface only.
INFORMATION
If [4‑03]=1 or 3, then Emergency=Manual is not applicable
for the anti-legionella heater.
INFORMATION
If a heat pump failure occurs and Emergency is set to
Manual, the room frost protection function, the underfloor
heating screed dryout function, and the water pipe
antifreeze function will remain active even if the user does
NOT confirm emergency operation.
Number of zones
The system can supply leaving water to up to 2 water temperature
zones. During configuration, the number of water zones must be set.
#
Code
Description
[4.4]
[7‑02]
▪ 0: Single zone
Only one leaving water temperature
zone:
a
▪ a: Main LWT zone
[4.4]
[7‑02]
▪ 1: Dual zone
Two leaving water temperature zones.
The main leaving water temperature
zone consists of the higher load heat
emitters and a mixing station to
achieve the desired leaving water
temperature. In heating:
a
b
▪ a: Additional LWT zone: Highest
temperature
▪ b:
Main
LWT
zone:
Lowest
temperature
CAUTION
If there are 2 zones, it is important that the zone with the
lowest water temperature is configured as the main zone,
and the zone with the highest water temperature is
configured as the additional zone. Not configuring the
system in this way could cause damage to the heat
emitters.
CAUTION
If there are 2 zones and the emitter types are wrongly
configured, water of high temperature can be sent towards
a low temperature emitter (underfloor heating). To avoid
this:
▪ Install an aquastat/thermostatic valve to avoid too high
temperatures towards a low temperature emitter.
▪ Make sure you set the emitter types for the main zone
[2.7] and for the additional zone [3.7] correctly in
accordance with the connected emitter.
