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37
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dHw HEatIng wItH HEat pUmpS
DHW heating with a 300 litre DHW cylinder
and an external heat exchanger
w
PF
5
w
PF
7
w
PF
10
w
PF
13
w
PF
16
w
Pw
7
w
Pw
10
w
Pw
13
w
Pw
18
w
Pw
22
M
w
Pl
10
w
Pl
13
w
Pl
18
w
Pl
23
w
Pl
33
w
Pl
14 H
t
300 litre capacity DHw cylinder
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
inlet pipe for a 300 / 400 l cylinder
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Heat exchanger type wt 10
1
1
–
–
–
1
–
–
–
–
1
–
–
–
–
1
Heat exchanger type wt 20
–
–
1
1
–
–
1
1
–
–
–
1
–
–
–
–
Heat exchanger type wt 30
–
–
–
–
1
–
–
–
1
1
–
–
1
1
1
–
Heat pump circulation pump UP 25–80
–
–
–
–
–
–
–
–
–
1
1
1
1
1
1
–
Circulation pump UPs 25-60 b
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
temperature sensor heat pump manager
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum possible DHw temperature 50 °C
DHW heating
w
PF
5
w
PF
7
w
PF
10
w
PF
13
w
PF
16
w
Pw
7
w
Pw
10
w
Pw
13
w
Pw
18
w
Pw
22
M
w
Pl
10
w
Pl
13
w
Pl
18
w
Pl
23
w
Pl
33
w
Pl
14 H
t
required indirect coil surface in m²
1.6 2.2 2.8 3.6 4.5 2.0 2.8 3.6 4.8 6.2 2.6 3.4 4.8 5.6 4.8 2.0
m²
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
°C
sbb 301 wP
3.2
50
50
50
–
–
50
50
49
–
–
50
47
–
–
–
60
sbb 302 wP
4.8
50
50
50
50
49
50
50
50
50
46
50
50
50
46
50
60
sbb 401 wP sol (upper indirect coil
connected)
4.0
50
50
50
49
45
50
50
50
47
–
50
50
45
–
46
60
sbb 401 wP sol (both indirect coils
connected in series)
5.4
50
50
50
50
50
50
50
50
50
49
50
50
50
49
50
60
sbb 501 wP sol (upper indirect coil
connected)
5.0
50
50
50
50
50
50
50
50
50
47
50
50
50
47
50
60
sbb 501 wP sol (both indirect coils
connected in series)
6.4
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
60
Predicted achievable DHW temperatures with heat pump operation only
the precondition for achieving the stated DHw temperatures is the maintenance of the minimum flow rates stated in the installation instructions
and the pipework in accordance with the ste technical guides.
the distance between the heat pump and the DHw cylinder must not be greater than 2 m.
the connecting pipe must not contain more than two 90° bends (not elbows).
the achievable DHw temperatures are to be taken as reference values, which are subject to normal manufacturing tolerances.
if, for the sbb 400/500 wP sol, only the upper indirect coil is used for the heat pump, then the lower indirect coil can be used for solar heating.
DHw heating with a twin compressor machine in partial load operation.
DHW heating with a SBS... combi cylinder
w
PF
5
w
PF
7
w
PF
10
w
PF
13
w
PF
16
w
Pw
7
w
Pw
10
w
Pw
13
w
Pw
18
w
Pw
22
M
w
Pl
10
w
Pl
13
w
Pl
18
w
Pl
23
w
Pl
33
w
Pl
14 H
t
sbs 800
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
sbs 1000
–
–
1
1
1
–
1
1
1
1
–
1
1
1
1
1
sbs 1500
–
–
–
1
1
–
–
1
1
1
–
–
1
1
1
1
Diverter valve HUV 1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
1
temperature sensor heat pump manager
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Maximum possible DHw temperature 50 °C
Summary of Contents for Heat pumps
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