Assembly; Ceiling Installation; Condensation Outlet - Helios KWL EC 220 D Eco R Montage- Und Betriebsvorschrift

Installation and Operating Instructions
CHAPTER 2
INSTALLATION
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IMPORTANT
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ATTENTION
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IMPORTANT
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ATTENTION
Compact ceiling units KWL EC 220 D Eco
2 .0

Assembly

The KWL compact units are suitable for "hanging", for ceiling installation and therefore intended for installation within a
residential/room unit. Due to operating noises which change according to system pressure, it is recommended to install
the KWL unit in ancillary rooms. Ensure that there is a waste water connection in the installation area. Please consider
the information in section 2.2 „condensation outlet"! Installation should take place in such a way to enable preferably
short ventilation ducts and their troublefree connection to the unit. Tight bends can lead to increased pressure loss and
flow noise. The ventilation pipes must never be kinked. The attachment to the connection spigots must be firm and
tight. With regard to maintenance and installation work, the unit and the internal terminal box must be freely accessible.
Important notes:
1 . The terminal box is accessible on the left side under the inspection cover (Fig .27/28) .
2 . In order to avoid sound transmissions, a suitable acoustic insulation must be planned on site depending
upon the structure .
3 . The KWL compact unit must only be assembled in frost-free rooms, since there is a risk of freezing . The room air
temperature must not fall below +10 °C!
4 . In order to adjust the air flow volumes, all ventilation unit connectors must be accessible at least up to a
length of 20 cm from the side edge of the ventilation unit . Alternatively, pressure measuring connectors and
pressure measurement tubes must be added in the connection spigots on site when installing the unit, so
that pressure can be properly measured .
2 .1

Ceiling installation

Four mounting brackets with vibration dampers are provided with the unit for ceiling installation. These are mounted to
the lower side walls with self-tapping screws (Fig.1/2). Ceiling installation takes place on site with long M8 threaded
rods (Fig. 2).
TIP:Batten
4x mounting brackets
With regard to ceiling installation, it is recommended that the heat exchanger is removed from the unit to reduce the
assembly weight when lifting. Furthermore, a support batten can be mounted to the wall provisionally to absorb the
weight! When installing the heat exchanger, ensure the correct location and positioning of the metal trays! (see also
point 6.3
It must be ensured that the unit is installed 100% perpendicular (essential for proper condensation drainage) .
2 .2

Condensation outlet

During the heating period, the humidity of the extract air condenses to water. The resulting condensation water must be
discharged from the unit via the provided ball siphon (Fig.4). For this purpose, the on-site connection to the local
wastewater system must be ensured.
– The drainage pipeline must not rise behind the ball siphon!
– The condensation outlet must be frost-proof!
– In order to ensure regular maintenance, the ball siphon must be freely accessible!
Fig .1
Fig .3
Condes. outlet
ø 12 mm
Conden-
sate drain
connection
(on-site)
3
Mounting bracket
Lay condensate hose
with slope
Ball siphon (ZOOM)
Ball siphon
Connection to the sewage
system (on-site)
EN
Fig .2
Abb .4
Fig .4