Helios KWL 340 D Manual page 53

Installation and Operating Instructions
Central ventilation unit – KWL 220/340 D
6. If individual measuring points are connected, the system characteristic curve is for supply or extract air (cf. Fig. 41).
D p
f a
Pa
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à
ú
ó
é
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Determine fan powers:
1. Enter the flow rates from the design calculation for the three ventilation profiles "At home", "Away" and "Boost" in the
unit characteristic curve for supply and extract air (cf. Fig. 42).
ⓘ We recommend entering the following values in the ventilation profiles:
• Reduced ventilation ≙ Ventilation profile "Away"
• Nominal ventilation ≙ Ventilation profile "At home"
• Intensive ventilation ≙ Ventilation profile "Boost"
Total air flow rates by fan-assisted ventilation according to DIN 1946-6:2019-12
Ventilation for mo-
Ventilation type
isture protection
Fan flow rate [m /h] 59
3
D p
f a
Pa
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ú
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2. The approximate fan powers to be set (in %) can be read from the ventilation profiles at the points of intersection of
the flow rates and the system characteristic curve. Enter these in the corresponding ventilation profile via the easy-
Controls software or the control element KWL-BE Touch (cf. Fig. 42 and Fig. 43).
Fig. 41
10 %
â
20 %
ê
30 %
ô
40 %
û
50 %
á
60 %
é
70 %
ó
80 %
ú
90 %
à
100 %
è
V · m
3 /h
Reduced
ventilation
138
Fig. 42
10 %
â
20 %
ê
30 %
ô
40 %
û
50 %
á
60 %
é
70 %
ó
80 %
ú
90 %
à
100 %
è
V · m
3 /h
20
Nominal Intensive
ventilation ventilation
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EN