Installation and electrical
connection
Operating Instructions | 1473-1-8319
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7 Installation and electrical connection
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Electric voltage!
Risk of death due to electrical voltage of 230 V during short-circuit in the low-voltage line.
– Low-voltage and 230 V lines must not be installed together in a flush-mounted socket!
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7.1 Requirements for the electrician
Electric voltage!
Install the device only if you have the necessary electrical engineering knowledge and experience.
• Incorrect installation endangers your life and that of the user of the electrical system.
• Incorrect installation can cause serious damage to property, e.g. due to fire.
The minimum necessary expert knowledge and requirements for the installation are as follows:
• Apply the "five safety rules" (DIN VDE 0105, EN 50110):
1. Disconnect from power;
2. Secure against being re-connected;
3. Ensure there is no voltage;
4. Connect to earth and short-circuit;
5. Cover or barricade adjacent live parts.
• Use suitable personal protective clothing.
• Use only suitable tools and measuring devices.
• Check the supply network type (TN system, IT system, TT system) to secure the following
power supply conditions (classic connection to ground, protective earthing, necessary
additional measures, etc.).
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7.2 General installation instructions
• Terminate all branches of the wiring system via a connected bus device (e.g., indoor station, outdoor station,
system device).
• Do not install the system controller directly next to the bell transformer and other power supplies (to avoid
interference).
• Do not install the wires of the system bus together with 230 V wires.
• Do not use common cables for the connecting wires of the door openers and wires of the system bus.
• Avoid bridges between different cable types.
• Use only two wires for the system bus in a four-core or multi-core cable.
• When looping, never install the incoming and outgoing bus inside the same cable.
• Never install the internal and external bus inside the same cable.
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