10 Configuration
Installer reference guide
62
EJHA EHY32AA
Daikin Altherma Hybrid hydrosplit heat pump
4P531180-1 – 2018.06
Leaving water temperature: Delta T source
Temperature difference for entering and leaving water. The unit is
designed to support under floor loops operation. The recommended
leaving water temperature (set by the user interface) for under floor
loops is 35°C. In such case, the unit will be controlled to realize a
temperature difference of 5°C which means that the entering water
to the unit is around 30°C. Depending on the installed application
(radiators, heat pump convector, under floor loops) or situation, it is
possible to change the difference between entering and leaving
water temperature. Note that the pump will regulate its flow to keep
the ΔT.
#
Code
Description
[A.3.1.3.1]
[1-0B]
Heating: required temperature
difference between entering and
leaving water. Range: 3°C~10°C
Domestic hot water control
Only applicable in case of EHY32AA gas boiler, and an
optional domestic hot water tank is installed.
This is always applicable for Switzerland.
Configuring the desired tank temperature
The domestic hot water can be prepared in 3 different ways. They
differ from each other by the way the desired tank temperature is set
and how the unit acts upon it.
#
Code
Description
[A.4.1]
[6-0D]
Domestic hot water Type:
▪ 0 (Reheat only): Only reheat operation
is allowed.
▪ 1 ( sched.): The domestic hot
water tank is heated according to a
schedule and between the scheduled
heatup cycles, reheat operation is
allowed.
▪ 2 (Scheduled only): The domestic hot
water tank can ONLY be heated
according to a schedule.
See
"Domestic hot water control: advanced" on page 64
details.
INFORMATION
There is a risk of space heating capacity shortage/comfort
problem (in case of frequent domestic hot water operation,
frequent and long space heating interruption will happen)
when selecting [6‑0D]=0 ([A.4.1] Domestic hot water
Type=Reheat only).
Maximum DHW temperature setpoint
The maximum temperature that users can select for the domestic
hot water. You can use this setting to limit the temperatures at the
hot water taps.
INFORMATION
During disinfection of the domestic hot water tank, the
DHW temperature can exceed this maximum temperature.
INFORMATION
Limit the maximum hot water temperature according to the
applicable legislation.
#
Code
Description
[A.4.5]
[6‑0E]
Maximum setpoint
The maximum temperature that users
can select for the domestic hot water.
You can use this setting to limit the
temperature at the hot water taps.
The maximum temperature is NOT
applicable during disinfection function.
See disinfection function.
In case of [E‑06]=1 (tank installed):
▪ If [E‑07]=0: 40°C~70°C
▪ If [E‑07]=4: 40°C~75°C
▪ If [E‑07]=6: 40°C~60°C
In case of [E‑06]=0 (no tank installed):
▪ 40°C~65°C
Contact/helpdesk number
#
Code
Description
[6.3.2]
N/A
Number that users can call in case of
problems.
10.1.3
Advanced configuration/optimization
Space heating operation: advanced
Preset leaving water temperature
You can define preset leaving water temperatures:
▪ economic (denotes the desired leaving water temperature which
results in the lowest energy consumption)
▪ comfort (denotes the desired leaving water temperature which
results in the highest energy consumption).
Preset values make it easy to use the same value in the schedule or
to adjust the desired leaving water temperature according to the
room temperature (see modulation). If you later want to change the
value, you ONLY have to do it in one place. Depending on whether
the desired leaving water temperature is weather dependent or NOT,
the desired shift values or the absolute desired leaving water
temperature should be specified.
NOTICE
Select preset leaving water temperatures in accordance
with the design and selected heat emitters to ensure the
balance between desired room and leaving water
temperatures.
#
Code
Description
Preset leaving water temperature for the main leaving water
temperature zone in case of NOT weather dependent
[7.4.2.1]
[8-09]
Comfort (heating)
[9‑01]°C~[9‑00]°C
[7.4.2.2]
[8-0A]
Eco (heating)
[9‑01]°C~[9‑00]°C
Preset leaving water temperature (shift value) for the main leaving
water temperature zone in case of weather dependent
[7.4.2.5]
N/A
Comfort (heating)
–10°C~+10°C
[7.4.2.6]
N/A
Eco (heating)
–10°C~+10°C
Содержание Altherma EHY2KOMB28AA
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