Installation Instructions; Positioning; Adjust Unit To Installation Conditions - Helios KWL 170 W/W ET Montage- Und Betriebsvorschrift

Installation and Operating Instructions
CHAPTER 4
INSTALLATION
Central ventilation unit – KWL 170 W/W ET
4.1

Installation instructions

4.1.1 Positioning

The unit is designed for installation on the wall inside the residential unit or building or for installation in a cabinet. Due to the
operating noise, it is recommended to install the unit in a secondary room (e.g. laundry room, utility room or storeroom). Ensure
that there is a waste water connection in the installation area.
The unit and terminal box must be freely accessible for maintenance and installation work. The following minimum clea-
rances to the wall, floor and ceiling must be observed and adhered to (see Fig. 9).
Dimensions in mm
1. The unit may only be installed in frost-free rooms because there is a risk of freezing. The room temperature must not
fall below +5 °C.
2. In case of installation in heated rooms and rooms with higher air humidity, condensate may form on the outside of the
unit in the area of the intake air and exhaust air ducts. In this case, vapour diffusion-tight insulation must be applied
to the outside of the piping. The minimum insulation thickness pursuant to DIN 1946-6 must be observed.
3. There must be sufficient space to allow easy access to the unit. At least 30 cm must be kept clear above and below
the unit for maintenance work (cf. Fig. 9).
4. An additional 30 cm space must be kept clear on the unit side for the installation of the external terminal box (cf.
Fig. 9).
5. In order to ensure safe condensate drainage, the unit must be mounted so that the bottom edge is at least 300 mm
above the ground (cf. Fig. 9).
6. In order to prevent sound transmissions, there must be suitable on-site sound decoupling depending on the building
structure.
7. If an external post-heater is installed, the ventilation duct must be made of non-flammable material at least 0.5 m
before and after the heating element.

4.1.2 Adjust unit to installation conditions

The unit can be adapted to the installation conditions as required. The intake air connection can be installed on the right
or left side.
Upon delivery, the intake air connection is on the right side of the unit (see Fig. 10). The supply air supply can also either
be at the top or bottom of the unit.
Intake air connection from right
79 132 163 143
Extract air Abluft
ø125
Supply air Zuluft
Front side
80
Dimensions in mm
ø125
598
79 132 163 143
Fig. 10
Wall
598
110
Abluft
Abluft
ø125
Zuluft Außenluft
80
598
ø160
79 132 163 143
Fortluft
Exhaust air
Außenluft
Intake air
ø125
Kugelsiphon
ø125
Abluft Fortluft
ø125
222
ø12
Zuluft Außenluft
80
12
ø125
643
110 206 220 110 206 220
Fortluft
Abluft Abluft
Intake air connection from left
Wall
643
ø160 ø160
110
Intake air Supply air
296
206 220 Zuluft Außenluft Zuluft
Exhaust air Extract air Abluft
Fortluft
235
Fortluft
598 598
ø160
79 132 163 143 79 132 163 143 79 132 163 143
Zuluft Außenluft
Kugelsiphon
598
222
235
ø12
79 132 163 143
Kugelsiphon
Front side
ø12
Dimensions in mm
Abluft Fortluft Abluft Fortluft
Abluft
ø125 ø125
ø125
147
221
Zuluft Außenluft Zuluft Außenluft Zuluft
Abluft Fortluft
ø125
80 80 80
Zuluft Außenluft
80
Kugelsiphon
ø125
ø125
222 222
EN
Fig. 9
643
598
79 132 163
Fortluft
29
598
79 Fig. 11 132 163 143
643
550
206 220
Abluft
Außenluft
ø125
Fortluft
Zuluft Auße
235
Kugelsiphon Kugelsiphon
Abluft For
80
ø125
235
ø12
ø12
Zuluft Außenluft
598
598
598
80
79 132 163 296
ø125
Zuluft Außenluft
79 132 163 143
221
235
Kugel
ø125
22
ø12
270
235
Abluft
ø125
Abluft Fortluft
Fortluft
Zuluft Außen
Zuluft Außenluft
Außenluft
80
80
ø125
Kugelsiphon Kugelsiphon Kuge
221
ø125
222 147
222 221
ø12 ø12 ø12