Building type
Specific heating output in W/m
2
Passive energy house
10
Low-energy house built in 2002
40
According to energy conservation order regarding heat insulation
1995
60
Modern building constructed around 1984
80
Partially-renovated old building constructed pre-1977
100
Non-renovated old building constructed pre-1977
200
0
2
4
6
8
10
12
14
16
18
20
-15 -14 -13 -12 -11 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 0 1 2
3
4 5 6 7 8
9 10 11 12 13 14 15 16 17 18 19 20
Heat load acc.
DIN EN 12831
n.max
n-min
Min. performance
2. heat source
n.max
Heating capacity
[k
W
]
Heating capacity at a supply temperature of 35°C
Rated frequency 57 Hz
Heat load
Heat load plus warm-water
requirements and service
time-out period
Heating threshold for
old building
according to VDI 4650
Outdoor temperature [°C]
Bivalent temperature
Standard outdoor
temperature
Fig. 25: Heating capacity diagramm of the heat pump WKF/WKF-compact 180
Characteristics of REMKO inverter heat pumps
Outdoor air as a heat source
An air/water heat pump absorbs energy from the
outdoor air as its heat source and transmits this to
the heating system. They have the following
advantages over brine/water and water/water heat
pump systems:
n
Can be used everywhere Air is available every-
where in unlimited quantities. For example, no
wells are required.
n
No excavation required. No large areas are
required for soil collectors.
n
Economical. Expensive drilling is not required.
n
Excellent value for money and simple installa-
tion.
n
Particularly suitable for low-energy houses with
low inlet temperatures.
n
Ideal for bivalent operation, in order to save
energy.
REMKO WKF / WKF-compact
26