Daikin EPRA10EAV3 Installer's Reference Manual page 221

EPRA08~12EAV3+W1 + ETSH/X(B)12P30+50EF
Daikin Altherma 3 H MT ECH₂O
4P663478-1B – 2022.07
(a)
Make sure to use the same units of measurement for the electricity price and gas price
(example: both c€/kWh).
2 Determine the value of [C‑03] using the graph. For an example, see the table
legend.
COP
6
5
4
3
2
1
0
-14 -12 -10 -8 -6
a [C‑03]=2.5 in case of COP=3 and LWT=35°C
b [C‑03]=10.5 in case of COP=3 and LWT=55°C
NOTICE
Make sure to set the value of [5‑01] at least 1°C higher than the value of [C‑03].
For DHW heating switch-over:
The heat pump system calculates a value T
COP as defined above. When storage tank temperature reaches T
set as primary heat source. Whether the boiler will be activated depends on the
intelligent tank management settings.
Electricity and gas prices, PE factor [7-03]
INFORMATION
To set electricity and gas price values, do NOT use overview settings. Set them in the
menu structure instead ([7.5.1], [7.5.2], [7.5.3], and [7.6]). 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.
# Code
[7.5.1] N/A
[7.5.2] N/A
[7.5.3] N/A
[7.6] N/A
[9.J.2] [7-03]
-4 -2 0 2 4 6 8 10
2.5 (a)
10.5 (b)
based on outdoor temperature and
lim
User settings > Electricity price >
High
User settings > Electricity price >
Medium
User settings > Electricity price >
Low
User settings > Gas price
If electricity and gas prices are not known, the PE
factor (primary energy factor) is used for the
calculation instead. Lower values of the PE factor
result in increased use of the heat pump. Higher
values of the PE factor result in increased use of
the auxiliary boiler.
10 Configuration
|
12 14
, the boiler is
lim
Description
Installer reference guide
221