Helios 8327, Nstallation And Operating Instructions, Page: 45 / 112

2.3 Condensation outlet
The humidity of extract air condenses to water during the heating period. A lot of condensate can build up in new buil-
dings with large numbers of people.
The condensate collected in the stainless steel condensation tub is discharged using a ball siphon (included in the
scope of delivery). In this respect, there must be an incline of at least 3° and the customer must ensure the connection
to the local drainage system.
In order to guarantee the drainage of the condensate, it must be ensured that the ventilation unit is installed in
a perpendicular position; see also “condensation outlet” label on unit.
Installation: Connect the supplied ball siphon components. Then attach the siphon to the unit. An open outlet should
be installed due to odour development from a dried out siphon.
The drainage pipe route must not rise above the siphon!
The condensation outlet must be made frost-proof!
m
Operation of the KWL unit in connection with active cooling systems e.g. air conditioning, is not permitted!
2.4 Flange connection / connecting pieces
The KWL EC.. S Pro/WW types are supplied with a flange connection as standard.
Duct-to-pipe connecting pieces are available in the Helios range:
The ducting must be firmly and tightly connected to the connection valves.
Refer to the illustrations for the arrangement of ventilation ducting.
Fig.4
External thread AG 1½“
7
Central Ventilation Units KWL EC.. S Pro/WW
Installation and Operating Instructions
Unit type Dim. K L
KWL EC 800 S Pro ... mm 274 424
KWL EC 1200 S Pro ... mm 424 424
KWL EC 1800 S Pro ... mm 424 624
KWL EC 2600 S Pro ... mm 524 724
K
L
Fig.6
Dim. in mm
ATTENTION
m
ATTENTION
m
EN
ATTENTION
m
Fig.3
560
724
60
370
504
704 21
ø 10
524
400
60
624
320
404
604
21
ø 10
424
250
40
424
254
21
404
ø 10
274
280
Fig.7 Fig.9 Fig.10
424
424
355
10
60
404
404
21
300
Fig.8
Unit type Description Ref. no. Duct diameter in mm
Fig.7 KWL EC 800 S Pro ... KWL-ÜS 800 S 8339 Ø 250
Fig.8
KWL EC 1200 S Pro ... KWL-ÜS 1200 S 8349 Ø 355
Fig.9
KWL EC 1800 S Pro ..
KWL-ÜS 1800 S
8340 Ø 400
Fig.10 KWL EC 2600 S Pro ..
KWL-ÜS 2600 S 8341 Ø 560
Fig.5
Dim. in mm Dim. in mm Dim. in mm