Daikin Altherma 3 H HT W - Domestic Hot Water

6 Configuration
Installation manual
19
ETBH/X16DA6V+9W
Daikin Altherma 3 H HT W
4P586453-1B – 2020.01
Backup heater type
The backup heater is adapted to be connected to most common
European electricity grids. The type of backup heater can be viewed
but not changed.
# Code Description
[9.3.1] [E‑03] ▪ 3: 6V
▪ 4: 9W
Domestic hot water
The following setting determines if the system can prepare domestic
hot water or not, and which tank is used. Set this setting according to
the actual installation.
# Code Description
[9.2.1] [E‑05]
(a)
[E‑06]
(a)
[E‑07]
(a)
▪ No DHW
No tank installed.
▪ EKHWS/E
Tank with booster heater installed at
the side of the tank.
▪ EKHWP/HYC
Tank with optional booster heater
installed at the top of the tank.
(a)
Use the menu structure instead of the overview settings. 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?
In case of EKHWP/HYC, we recommend to set the temperature of the
booster heater NOT higher than 70°C.
In case of EKHWS*D* / EKHWSU*D*, we recommend to use the
following settings:
# Code Item EKHWS*D* / EKHWSU*D*
150/180 200/250/300
[9.2.1] [E‑07] Tank type 0: EKHWS/E 5: EKHWP/HYC
N/A [4-05] Thermistor type 0: Automatic 1: Type 1
[5.8] [6-0E] Maximum tank
temperature
≤75°C
In case of a third-party tank, we recommend to use the following
settings:
# Code Item Third-party tank
Coil≥1.05m² Coil≥1.8m²
[9.2.1] [E‑07] Tank type 0: EKHWS/E 5: EKHWP/HYC
N/A [4-05] Thermistor type 0: Automatic 1: Type 1
[5.8] [6-0E] Maximum tank
temperature
≤75°C
Emergency
When the heat pump fails to operate, the backup heater and/or
booster heater can serve as an emergency heater. It then takes over
the heat load either automatically or by manual interaction.
▪ When Emergency is set to Automatic and a heat pump failure
occurs, the backup heater automatically takes over the heat load,
and the booster heater in the optional tank takes over the
domestic hot water production.
▪ When Emergency is set to Manual and a heat pump failure
occurs, the domestic hot water heating and space heating stops.
To manually recover it via the user interface, go to the
Malfunctioning main menu screen and confirm whether the
backup heater and/or booster heater can take over the heat load
or not.
▪ Alternatively, when Emergency is set to:
▪ auto SH reduced/DHW on, space heating is reduced but
domestic hot water is still available.
▪ auto SH reduced/DHW off, space heating is reduced and
domestic hot water is NOT available.
▪ auto SH normal/DHW off, space heating operates as
normally but domestic hot water is NOT available.
Similarly as in Manual mode, the unit can take the full load with
the backup heater and/or booster heater if the user activates this
via the Malfunctioning main menu screen.
To keep energy consumption low, we recommend to set Emergency
to auto SH reduced/DHW off if the house is unattended for longer
periods.
# Code Description
[9.5.1] [4-06] ▪ 0: Manual
▪ 1: Automatic
▪ 2: auto SH reduced/DHW on
▪ 3: auto SH reduced/DHW off
▪ 4: auto SH normal/DHW off
INFORMATION
The auto emergency setting can be set in the menu
structure of the user interface only.
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.
INFORMATION
Mixing station. If your system layout contains 2 LWT
zones, you need to install a mixing station in front of the
main LWT zone.
# Code Description
[4.4] [7‑02] ▪ 0: Single zone
Only one leaving water temperature
zone:
a
a Main LWT zone