ᐅ Pre-Wiring a Smart Home: Where to Install Conduits and Cables?

Created on: 24 Jul 2016 12:17
M
moertelmischer
M
moertelmischer
24 Jul 2016 12:17
We are currently opening up all the walls in our old house, including completely rewiring the electrical system.

Now I want to pre-install the house for smart home technology, but not connect it right away, as the priority lies elsewhere.

I definitely want to be able to control the heating. So, in every room there will be an electrical box for the room temperature sensor and another for the actuator on the radiator, as I’ve learned. I will install conduit pipes to these boxes. The specific cables will depend on the system (manufacturer) that is eventually chosen. But generally, to keep options open for many systems:

1. Which cable(s) need to be pulled for the actuators? A KNX cable and a power cable (3x1.5 mm² or preferably 5x1.5 mm²).

2. Which cable should be prepared for the room temperature sensor? Only KNX?

3. If you also want to control the lighting: Is one additional conduit for KNX cable, leading to a switch in each room, sufficient?

4. To connect the entrance / door opener as well: A conduit to the doorbell and to the front door or wherever the door control unit is located?

5. We don’t have many roller shutters, but for them as well: a conduit to every roller shutter switch?

(I don’t need window sensors, since we have old-style windows with many panes.)

6. What other ideas do you have for what I should include in the planning?
T
Tom1607
24 Jul 2016 17:03
Hello,

I’m not a fan of preparing for KNX systems, as in the end, it usually costs you significantly more money.

If you want to install heating control now anyway, then install MDT glass switches. With these, you can control your lighting, and they also have a built-in temperature sensor. They cost about 120€ each. For your radiators, run NYM cable. In the distribution box, install an MDT heating actuator to which you connect the NYM cables from the radiators, and your heating control is set up. For your lights, run a 5-core NYM cable and install a switching actuator in the distribution panel → lighting done.

Switching actuator for 8 radiators: 150€
Switching actuator for 8 lights: 170€
8 glass switches for 8 rooms: 1,000€
Power supply: 150€
ETS demo for programming: 0€ / ETS Light for 20 devices (you currently have 10): 100€.

Effort under 1,500€, and you get everything done properly from the start without having to redo it later. You can always upgrade with other extras afterwards.