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Installation and Operating Instructions
EN
+
EMC guideline
CHAPTER 2
INSTALLATION/
ASSEMBLY
m
WARNING
KNX/EIB Module KWL-KNX
1 .8 EMC requirements
Complies with EMC guideline 2004/108/EG; EN 50090-2-2 and EN 50491-5-2
1 .9 General information
Helios ventilation units KWL EC... can be connected to a KNX-Bus (see also circuit diagram SS-1076) by
means of an additional module KWL-KNX (a EIB-RS485 Gateway). The KWL-KNX provides condition data from
the ventilation unit, such as the status of the fans or readings from temperature sensors and carbon dioxide
sensors. Furthermore, the ventilation unit can be activated in different operating modes. In addition, setting
values e.g. for the supply air temperature can be entered.
The KNX/EIB module allows the timing control and presence control of the ventilation unit, as well as the
execution of different control programmes.
1 .10 External connection options
The following Helios ventilation units with easyControls and components can be connected:
– Connection via RS 485/Modbus
KWL EC ventilation units of the following types:
Compact units
KWL EC 200 W R/L
KWL EC 200 W ET R/L
KWL EC 270 W R/L
KWL EC 270 W ET R/L
KWL EC 300 W R/L
KWL EC 300 W ET R/L
KWL EC 370 W R/L
KWL EC 370 W ET R/L
KWL EC 500 W R/L
KWL EC 500 W ET R/L
– Connection via ModBus
Helios accessory components of the following types:
- Extension module KWL-EM
- Comfort controller KWL-BEC
- Humidity sensor KWL-FTF
- Mixed gas sensor KWL-VOC
- CO
sensor KWL-CO
2
2
- Pressure sensor triple
- Pressure sensor quintuple
- KNX/EIB module
- Basic module (slave devices)
2 .0 Installation/assembly
The KWL-KNX is intended for top hat rail mounting in the switch cabinet. E.g. a JY(ST)Y 2x2x0.6 mm² + 0.5
mm² cable is used for the cabling between the KWL ventilation unit and module.
m
2 .1
Electrical connection
The unit must be isolated from the mains power supply before all maintenance and installation work!
The electrical connection may only be carried out by an authorised electrician according to the connec-
tion diagrams . The relevant standards, safety regulations (e .g . DIN VDE 0100), as well as the technical
connection conditions of energy suppliers are to be adhered to .
– The supply voltage is connected to the terminals at the bottom of the housing GND / +24 V
(Fig.2, Pos.
ë
and
).
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In addition, the 485-Bus connection to the ventilation unit is established via the terminals Pos.
B (Fig.2).
– The EIB cable is connected to the top EIB connectors + / - (Fig.3, Pos.
Ceiling units
KWL EC 220 D R/L
KWL EC 340 D R/L
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