Daikin Altherma H Hybrid EJHA04AAV3 Installer's Reference Manual page 145

Space heating control
EJHA04AAV3 + EHY2KOMB28+32AA
Daikin Altherma H Hybrid
4P531180-1D – 2025.03
# Code
[A.6.7] [7‑04]
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]
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.
The basic required settings in order to configure the space heating of your system
are described in this chapter. The weather-dependent installer settings define the
parameters for the weather-dependent operation of the unit. When weather-
dependent operation is active, the water temperature is determined automatically
depending on the outdoor temperature. Low outdoor temperatures will result in
warmer water and vice versa. During weather-dependent operation, the user has
the possibility to shift up or down the target water temperature by a maximum of
10°C.
See the user reference guide and/or operation manual for more details about this
function.
Description
Defines whether switching between operation
modes is either economically or ecologically
optimised.
▪ 0 (Economical): reduction of energy costs
▪ 1 (Ecological): reduction of primary energy
consumption, but not necessarily energy costs
Description
Compares the primary energy use of the heat
pump with that of the boiler.
Range: 0~6
11 Configuration
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Installer reference guide
145