Installation and Operating Instructions
EN
CHAPTER 4
INSTALLATION
Compact wall-mounted units – KWL EC 360 W/W ET
3 .4
Accessories
Additional accessories and matching system components are available to expand the KWL
Further information and details on accessories can be found on HeliosSelect at www.HeliosSelect.de.
4 .0
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 e.g. in a 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 and ceiling must be observed and adhered to (see Fig. 4).
Dimensions in mm
– Installation instructions:
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 unit. The minimum insulation thick-
ness pursuant to DIN EN 1946-6, 05/2009 must be observed.
3. With regard to the positioning of the unit, there must be sufficient space to allow easy access. At least 30 cm must
be kept clear above and below the unit for maintenance work (cf. Fig. 4)!
4. 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. 4).
5. In order to prevent sound transmissions, there must be suitable on-site sound decoupling depending on the building
structure.
6. 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 (see functional diagram).
4 .1
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. 5).
Intake air connection from right
643
0
5
5
110
206 220
Extract air
Abluft
ø160
Supply air
Zuluft
0
7
2
Fig .5
643
643
643
110
206 220
110
110
110
206 220
206 220
206 220
Fortluft
Exhaust air
Abluft
Abluft
Abluft
Abluft
ø160
ø160
ø160
ø160
ø160
Intake air
Zuluft
Außenluft
Zuluft
Zuluft
Zuluft
Außenluft
Außenluft
235
n
o
h
p
s i
e l
g
u
K
Kugelsiphon
5
3
2
2
1
ø
ø12
6
®
system.
Intake air connection from left
643
643
3
4
643
6
643
643
110
110
206 220
110
0
2
2
206 220
6
206 220
0
2
110
206 220
t
u f
t l
o r
F
Exhaust air
Fortluft
Fortluft
Fortluft
Fortluft
Abluft
Abluft
Abluft
Abluft
ø160
ø160
ø160
Intake air
t
u f
n l
Zuluft
e
ß
u
A
Supply air
Außenluft
t
u f
Zuluft
u l
Z
Außenluft
Zuluft
Außenluft
Zuluft
5
3
2
235
235
235
235
235
Kugelsiphon
Kugelsiphon
Kugelsiphon
Kugelsiphon
235
ø12
ø12
ø12
ø12
Fig .4
Fig .6
643
643
643
643
55
550
110
110
206 22
206 2
0
110
1
1
206 22
110
110
206 220
2
Fortluft
Fortluft
Fortluft
Fortluft
Extract air
t
Abluft
u f
Abluft
b l
A
Abluft
Abluft
Abluft
0
ø160
6
1
ø
ø160
ø160
ø160
ø160
Außenluft
Zuluft
Zuluft
Zuluf
Außenluft
Außenluft
Zuluft
235
235
235
Kugelsiphon
Kuge
Ku
Kugelsi
270
235
235
235
ø12
235
ø1
ø12
ø12