
KN Interface Installation Manual
2
Safety instructions
WARNING
Follow carefully these safety and installation instructions. Improper work may lead to serious harmful for your health and also may damage seriously the interface
and/or the Hydro unit.
• This interface must be installed by accredited technical personnel (electrician, KNX installer, or technical personnel) and following all the safety instructions.
• This interface must only be installed in a restricted access location.
• Before manipulating the Hydro unit, be sure it is completely disconnected from Mains power.
• Do not modify the unit. (A fire or an electric shock may occur)
• This interface must only be installed in a restricted access location by user.
• Do not install the unit in any of the following places.
• Humid or wet place
•Dusty place
• Place exposed to direct sunlight
• Place where there is a TV set or radio within one meter
• Place exposed to rain (outdoors, under eaves, etc.)
• Use predefined cable and connect them certainly. Keep the connecting terminal free from external force.
It may cause an exothermic or a fire.
• Strip the insulation from the cable that connects to the connector (KNX and A B bus) following the dimensions shown in the diagram below.
• When connecting the cable to the connector (KNX and A B bus), ensure the core wires do not protrude from the connector.
• Use two-core cabtyre cable.
• Disconnect the KNX bus from power before manipulate it and connect it to the interface.
• To prevent EMC disturbances, ensure that there is a safety separation (SELV) of the connected signal cables (including possible extensions) from the other
voltage carrying devices and cables.
• Use KNX Certified Power Supply Unit.
Installation instructions
• Disconnect the Hydro unit from Mains Power.
• Disconnect the power supply of the KNX bus.
• Connect the connection cable between the interface and the Hydro unit following the instructions of the diagram below.
• Connect the KNX bus to the connector KNX of the interface. Respect the polarity.
• Close the Hydro unit and reconnect it to Mains Power.
• Reconnect power supply to the KNX bus.
• Follow the instructions on the user's manual for configuring and commissioning the interface. See below how to obtain the user's manual and the ETS database.
IMPORTANT:
• Use only one remote controller. A sub-remote controller cannot be connected when connecting this interface.
• It is not possible to mix and connect Hydro unit 4 series and 5 series.
NOTE
The cable used for connection of BMS-IFKX0AWR-E to A B bus can be any two-core cabtyre cable, the maximum distance for bus A B is 50 meters, consult the
manual of the Hydro unit for more details.
NOTE
In its place there is a pair of cables to connect the Remote Controller. Use these cables to connect the AB bus. Check your Hydro unit user or service manual for
more information.
A
TB07
B
(20 mm) (5 mm)
Hydro Unit
The terminal
block in the
hydro unit.
Connection to A B bus.
Two-core cabtyre cable.
Length of stripped KNX and A B bus communication
cable
Max. 50m
KNX TP-1
(EIB) bus