(C) IDM ENERGIESYSTEME GMBH
Installation instructions AERO ILM
11
0
2
4
6
8
10
12
14
16
-20
-15
-10
-5
0
5
10
15
20
MAX
NOMINAL
MIN
W35 EN14511
W35 EN14511
W35 EN14
{
outside temperature [°C]
heating capacity [kW]
bivalence point of the
particular heatpump type
standard external temperature
domestic hot water required
building- characteristic line
required heating capacity at
standard external temperature
incl. domestic hot water required
Bivalence
part
heating limit
Dimensioning
An air/water-heat pump should be dimensioned in
such a way that the bivalence point lies between -3
and -10 °C. This guarantees that more than 90 % of
the annual heating requirement (Austria, Germany,
Switzerland) will be covered by the heat pump.
In dimensioning the system the maximum heating
output of the house including the water for domestic
use is calculated.
The standard outside temperature is additionally re-
quired. This is determined by the geographical loca-
tion and can be found on the iDM homepage and ob-
tained from various institutions.
Example:
Detached single-family house in Germany
4 person-household
Domestic water requirements: 4 x 0.25 kW = 1 kW
Heating output requirements
11 kW
Standard outside temperature
Germany:
- 16 °C
O
ff
-period factor:
1.1
Heating energy required:
(domestic water requir heating output requirements) x o
ff
-period factor = 13.2 kW
Heating performance diagram AERO ILM 4-13
3. Dimensioning
