Table of Contents
Advertisement
Installation
5.12 Electrical connection
(general)
Risk of electric shock! Risk to life through incorrect work!
All electrical work in connection with the installation must only be carried out by a
qualified electrician.
- Mains supply AC 230 V +6% -10%, 50 Hz
In Germany the VDE 0100 and local regulations must be followed during installa-
tion; in all other countries, follow the relevant regulations.
The electrical connection has to be carried out to the correct poles and so polarity
cannot be mistaken. In Germany, the connection can be carried out with an acces-
sible, unmistakable plug-in connection or as a permanent connection. In all other
countries, provide a permanent connection.
For the power supply, use the power cable attached to the boiler or cable types
2
2
H05VV-F 3 x 1 mm
or 3 x 1.5 mm
.
We recommend the installation of a mains isolator upstream of the POWER HT-A. It
should be a double pole switch with a contact gap of min. 3 mm.
All connected components must comply with VDE [or local regulations]. Always
apply strain relief to connecting cables.
Cable lengths
Bus/sensor lines do not have mains voltage, but small protective voltage. They
must not be installed in parallel with mains lines ( induced signals). Shielded ca-
bles have to be installed if this is unavoidable.
Permissible cable lengths for all bus sensors:
- Cu-cable up to 20m: 0,8 mm
2
- Cu-cable up to 80m: 1 mm
2
- Cu-cable up to 120m: 1,5 mm
2
Strain reliefs
All electrical cables have to be installed from the boiler rear wall to the boiler
switch panel. Here, the lines have to be fixed into the strain relief of the switching
panel and to be connected according to the wiring diagram ( Fig. 29 ).
Fig. 29: Strain relief
2
3
4
1
Circulating pumps
The permissible current load per pump exit is I
= 1A.
N max
5
5
Hide quick links:
Advertisement
Table of Contents
