Assembly; Ceiling Installation - Helios KWL EC 700 D Pro Montage- Und Betriebsvorschrift

Installation and Operating Instructions
CHAPTER 2
INSTALLATION
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IMPORTANT
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ATTENTION
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WARNING
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ATTENTION
Central Ventilation Units KWL EC.. D Pro/WW
2.0

Assembly

The KWL central ventilation unit is designed for "hanging" arrangement for ceiling installation and thus intended
for installation inside the apartment/room unit. Due to operating noises which change according to system pressure, it
is recommended to install the KWL unit in the washing room, utility rooms or storerooms. Ensure that there is a waste
water connection in the installation area. Please consider the "condensation outlet" information! Assembly should take
place in such a way to enable preferably short ventilation ducts and their trouble-free connection to the unit. Tight bends
can lead to increased pressure loss and flow noise.
Important notes:
1. The ventilation ducts must not become kinked.
2. The connections to the connection valves must be firm and tight.
3. The terminal box is connected to the side of the casing and must be easily accessible for maintenance and installa-
tion work.
4. If an external heater battery is connected, there must be at least 1 m piping before and after the heater, which must
be made of non-flammable material (see functional diagram section Fig.9).
5. The heater must be installed in such a way that the electrical box is easily accessible.
6. In order to prevents sound transmission, appropriate acoustic decoupling must be provided on site depending on
the building material.
7. The assembly of the KWL compact unit must only take place in rooms that are free of frost, as there is a
danger of freezing. The room temperature must not fall below +5 °C!
2.1

Ceiling installation

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DANGER TO LIFE! Prior to installation of the compact unit, it must be ensured that the ceilings or the fas-
tening components used can support the heavy weight and vibration of the KWL EC.. unit. Unsuitable mounting
material has the consequence that the unit could uncontrollably fall from the ceiling. There is danger to life due
to the heavy weight! Furthermore, it can also result in major material damage!
Depending on the type of fixing, there must be additional safeguarding to protect against the KWL compact
unit falling uncontrollably from the ceiling!
There are four mounting brackets (Fig.1) incl. rubber buffers on the unit for ceiling mounting. The installation to the cei-
ling of the building takes place e.g. with threaded rods M8 (Fig.2) or suitable installation accessories.
For ceiling installation, it is recommended that the heat exchanger is removed from the unit to reduce the installation
weight for lifting.
In order to guarantee the drainage of the condensate, it must be ensured that the ventilation unit is installed
with a lateral incline of 3° towards the condensation outlet (Fig.4); see label next to the condensation outlet on
the unit.
Fig.1
Mounting bracket
Ø 85 mm
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EN
Fig.2
Threaded rod
M 8