Space Heating Control - Daikin Altherma EJHA-AV3 Installation Manual

H hybrid heat pump module
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#
Code
[A.2.2.B]
[C‑08]
External sensor:
▪ 0 (No): NOT installed.
▪ 1 (Outdoor
the
outdoor temperature.
▪ 2 (Room sensor): NOT applicable.
Savings mode
The user can choose whether switching between operation modes is
either economically or ecologically optimised. Set to Economical,
the system will in all operating conditions select the energy source
(gas or electricity) based on energy prices, resulting in a
minimisation of energy costs. Set to Ecological, the heat source
will be selected based on ecological parameters, resulting in a
minimisation of primary energy consumption.
#
Code
[A.6.7]
[7‑04]
Defines whether switching between
operation modes is either economically
or ecologically optimised.
▪ 0 (Economical): reduction of energy
costs
▪ 1 (Ecological): reduction of primary
energy
necessarily energy costs
Primary energy factor
The primary energy factor indicates how many units of primary
energy (natural gas, crude oil, or other fossil fuels, prior to
undergoing any human-made conversions or transformations) are
needed to obtain 1 unit of a certain (secondary) energy source, such
as electricity. The primary energy factor for natural gas is 1.
Assuming an average electricity production efficiency (including
transportation losses) of 40%, the primary energy factor for
electricity equals 2.5 (=1/0.40). The primary energy factor allows you
to compare 2 different energy sources. In this case, the primary
energy use of the heat pump is compared to the natural gas use of
the gas boiler.
#
Code
N/A
[7‑03]
Compares the primary energy use of the
heat pump with that of the boiler.
Range: 0~6
INFORMATION
▪ The primary energy factor can always be set, but is
only used in case the savings mode is set to
Ecological.
▪ To set electricity price values, do NOT use overview
settings. Set them in the menu structure instead
([7.4.5.1], [7.4.5.2], and [7.4.5.3]). For more information
on how to set the energy prices, see the operation
manual and the user reference guide.
INFORMATION
Solar panels. If solar panels are used, set the electricity
price value very low to promote the use of the heat pump.
EJHA04AAV3
Daikin Altherma H Hybrid – Heat pump module
4P530607-1D – 2020.02
Description
sensor): Connected to
outdoor
unit
measuring
the
Description
consumption,
but
not
Description
6.2.4

Space heating control

Leaving water temperature: Main zone
#
Code
[A.3.1.1.1]
N/A
Set point mode:
▪ 0 (Fixed): Absolute
▪ 1
dependent
▪ 2 (Fixed/scheduled): Absolute +
scheduled (only for leaving water
temperature control)
▪ 3
dependent + scheduled (only for
leaving water temperature control)
[7.7.1.1]
[1‑00]
Weather-dependent curve (heating):
T t
[1‑01]
[1‑02]
[1-02]
[1‑03]
[1-03]
▪ T
(main)
▪ T
INFORMATION
In order to optimise comfort as well as running costs, it is
recommended to choose weather-dependent setpoint
operation. Set the settings carefully; they have significant
influence on heat pump as well as boiler operation. Too
high leaving water temperature can result in constant boiler
operation.
NOTICE
In case of third-party gas boiler:
If you use weather-dependent operation, make sure to set
the values for the weather-dependent curves twice for
correct operation:
▪ Once on the user interface of the outdoor unit
▪ Once on the third-party gas boiler
Pump control
*HY2KOMB28+32AA gas boiler
a
a Main pump (= inside the gas
boiler)
If...
Space heating is done
And...
by...
Outdoor unit only
[C-0B]=1 According to ΔT control (see
[C-0B]=0 At maximum pump speed.
6 Configuration
Description
(Weather
dep.):
Weather-
(WD/scheduled):
Weather-
[1-00]
[1-01]
: Target leaving water temperature
t
: Outdoor temperature
a
Third-party gas boiler
a
a Main pump (= external pump)
Then the main pump runs...
below).
Installation manual
T a
23

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