18
Chain drive
Installation and operating instructions
ELTRAL K25 - 24 V | ELTRAL K25 Synchro - 24 V
General advice
This installation and functional description is intended only to be used by specialists trained by
Gretsch-Unitas GmbH Baubeschläge who in turn will instruct the end user. For this reason, the
instructions are provided in German (original language) and English (translation) only.
The Technical Of
fi
ce of Gretsch-Unitas GmbH Baubeschläge in Ditzingen is responsible for all
manuals.
This product is to be considered as an uncompleted apparatus. The instructions accompanying
it do not contain a risk assessment. In fact, it is the installer of the complete technical equipment
who is in charge of carrying out a risk analysis.
Symbols used in this manual
Symbol Signal word Meaning
Symbol Signal word Meaning
Danger!
Risk of damage to
people and property
warning sign
Info
Special functions or
tips for users
Attention!
Risk of property
damage
Note
Call to action
Caution!
Crushing risk
Contents
1 Essential
information
19
2
General safety advice
19
3 Intended
use
20
4
Technical data (1 motor)
20
5 Application
range
21
6
Calculating the opening and closing force
22
7
Mounting the device
23
8 Electrical
installation
24
9 Operation
25
10
Components and accessories
25
11
Maintenance and care
27
12 Trouble-shooting
27
13
Guarantee and aftersales service
28
14 Connection
diagram
28
15 Example
applications
29
16
Disassembly and disposal
29
17
Declaration of incorporation
30