22
Check that on the supply side of the electrical plant there is a suitable differential residual current circuit breaker
and overload protection.
When required to do so, connect to an efficient earthing/ground system fitted according to the safety regulations
in force in the country where the actuator is being installed. Before carrying out any operation (installation,
maintenance or repair), isolate the electrical supply before working on the equipment. To ensure complete
isolation from the supply current, installation is recommended of a double-pole switch of the approved type. The
low-voltage 24 Vdc actuators must be supplied by suitable power supplies (NOT TRANSFORMERS) of an approved
Class II type (double safety insulation) having an output voltage of 24 Vdc -15% to +20% (or from 20.4 Vdc min. to
28.8 Vdc max.) When using the 24 Vdc version, the cable must have a suitable cross-section, calculated based on
the distance between the power supply and the actuator, so as not to have a voltage drop or loss.
The device is not intended to be used by people (including children) whose physical, sensory or mental capabili-
ties are reduced or by people who lack in experience or knowledge, unless a person responsible for their safety
can control them or give them instructions concerning the use of the device. Children must be supervised to
ensure that they do not play with the device.
The Liwin chain actuator is intended only and exclusively for use for which it was designed, and the manufacturer
cannot be held responsible for damage due to its improper use. The actuator is intended exclusively for internal
installation to open top-hung and bottom-hung windows, skylights, dormer windows and roof windows. Any other
use is not recommended unless with the prior approval of the manufacturer. Install the actuator according to the
instructions shown in this manual.
Any apparatus serving and controlling the actuator must be produced according to the regulations in force and
respect the relevant standards issued by the European Community.
If the actuator is installed on a window at a height of less than 2.5 m from the floor and in buildings (public and
otherwise) in which the use of destination is not clear, it must be operated exclusively by a command which is not
accessible by public (key button).
The command button has to:
1) be placed at a height of 1500 mm from the floor
2) be positioned so that, at its activation, a person who carries the opening and closing has within its field of view
all the moving parts.
Do not wash the apparatus with solvents or jets of water. Do not immerse the apparatus in water.
Any repair must be carried out by qualified personnel (the manufacturer or an authorised service centre).
Always insist that only original spare parts are used.
Failure to use the original spare parts could compromise the correct operation of the product and the safety of
people or property, also annulling the effects of the guarantee enclosed with the apparatus.
In case of any problems or doubt, contact the point of sale where the product was purchased or the manufacturer
directly.
Cross section of cables
Max length of the cable
1,50 mm
2
~ 100 m
0,75 mm
2
~ 50 m
Summary of Contents for LIWIN
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