Stiebel Eltron SHP-F 220 Premium Utilisation Et Installation page 26

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Commissioning
Standard system with 5 m air duct (DN 200) and two 90° bends
length or
Folded spiral-seam tube
90° bend (r = 1 * d)
Intake grille
Total
f Set the fan output to 44 % in the controller menu. f
Note
If the air duct is longer or there are more bends, perform
the following individual system calculation.
Individual system calculation
f Calculate the system pressure drop as the sum of all compo- f
nents installed in the air duct.
f Enter the calculated pressure drop on the X-axis of the dia- f
gram. Read off the fan output from the Y-axis and adjust the
fan output parameter in the appliance menu.
Example 1 : Air duct diameter DN 160
length or
Folded spiral-seam tube
90° bend (r = 1.5 * d)
90° bend (r = 1 * d)
Intake grille
Total
Fan graph with examples showing how to calculate the necessary fan setting with a duct connection
65
60
55
50
45
40
35
0 10
X Pressure drop [Pa]
Y Fan setting [%]
26 | SHP-F 220-300 Premium
Pressure drop per Pressure
pce m or per pce [Pa] drop [Pa]
5 0.67
2 2.3
2 6.2
Pressure drop per Pressure
pce m or per pce [Pa] drop [Pa]
10 2
0 4.5
3 5.5
2 6.2
20 30 40
Example 2
Example 2 : Air duct diameter DN 200
3.35 Folded spiral-seam tube
4.6 90° bend (r = 1.5 * d)
12.4 90° bend (r = 1 * d)
20.35 Intake grille
Intake expansion
Discharge reduction
Total
Table for your system
20
0
16.5
12.4
48.9
50 60
Example 1
1 Fan curve
length or Pressure drop per
pce m or per pce [Pa]
20
0
2
2
1
1
length or Pressure drop per
pce m or per pce [Pa]
70 80 90
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Pressure
drop [Pa]
0.67 13.4
2.0 0
2.3 4.6
6.2 12.4
5 5
2.8 2.8
38.2
Pressure
drop [Pa]
1
100