Condensation Outlet; Flange Connection / Connecting Pieces; Air Ducting, Ventilation Circuit - Helios EC green Vent KWL EC 700 D Pro / WW Notice De Montage Et D'entretien

Installation and Operating Instructions
EN
m
ATTENTION
+
NOTE
+
IMPORTANT
Central ventilation units KWL EC.. D Pro/WW
2.2

Condensation outlet

The humidity in the extract air condenses to water during the heating period. A lot of condensate can build up in new
buildings with large numbers of people. The condensate water collected in the condensate tub made of stainless steel
is discharged via a ball siphon (not included in scope of delivery). An incline of at least 3° (Fig.4) must be observed and
the connection to the local drainage system must be ensured on site.
The drainage pipe route must not rise above the siphon!
The condensation outlet must be made frost-proof!
2.3

Flange connection / connecting pieces

The KWL EC ... Pro / WW types are supplied with a flange connection as standard.
Dimensions in mm
Duct-to-pipe connecting pieces are available in the Helios range:
Fig.6
ø 10
Unit type
Fig.6 KWL EC 700 D..
KWL EC 1400 D..
Fig.7
Fig.8 KWL EC 2000 D..
The piping must be firmly and tightly connected to the connection valves. Refer to the illustrations for the
arrangement of ventilation ducting.
m
The KWL unit must not be operated in connection with an active cooling system e.g. air conditioning system!
2.4

Air ducting, Ventilation circuit

When designing the ductwork, use the shortest possible runs. Airtight connections and changeovers must be ensured
for the best possible heat recovery. To avoid pressure losses, dirt build-up and noise, use smooth ducts (plastic or rigid
ducting). For main lines (outside, outgoing air, supply air distributor, extract air collector) DN (KWL EC 700 D = 250
mm; KWL EC 1400 D = 315 mm; KWL EC 2000 D = 400 mm) or the corresponding duct is to be provided, and the ø
is reduced accordingly for branch lines.
Outside and outgoing air pipes are to be insulated in an appropriate way to reduce condensation. The minimum insu-
lating thicknesses pursuant to DIN EN 1946-6, 05/2009 are to be observed. If supply and extract air ductwork runs
through unheated rooms, insulation must be provided to reduce heat losses. Supply air should be supplied to living and
bedrooms and extraction should take place in bathrooms, toilets and kitchens. To balance the whole system, supply
and extract air openings should be provided with adjustable valves (accessories).
A filter (accessory) is to be connected for the extraction of polluted extract air. The installation of extractor hoods to the
system is not permitted (reasons: dirt, fire danger, hygiene). Sufficient overflow openings (door gap, door grilles) are to
be provided to ensure air circulation within the room.
Fig.3
Condensation
outlet nozzles,
Ø 22 mm
Fig.5
KWL EC 700 D ...
KWL EC 1400 D ...
KWL EC 2000 D ...
L
Fig.7
ø 10
Description Ref. no.
KWL-ÜS 700 D 4206
KWL-ÜS 1400 D 4207
KWL-ÜS 2000 D 4208
6
Gradient min 3°
3°
Condensation outlet with ball siphon
Unit type Dim.
mm
mm
mm
Fig.8
ø 10
Pipe diameter in mm
250
315
400
Fig.4
K L
224 324
274 524
324 624