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Warning: risk of injury in the event that the window should fall on outward
opening window frames. A safety system should be mounted onto the window
to guard against falls. This system should be able to withstand at least three
times the total weight of the window.
Warning: this device may cause injury by crushing or dragging. During function,
when the actuator closes the frame, it applies a pressure force of 660N against
the ledge of the casing, and all due measures, care and attention should be
taken to avoid any crushing of fingers.
Warning: in the event of damage or malfunction, switch off the device,
disconnect any electrical connections and request the intervention of a qualified
technician.
2. Formulas and recommendations for installation
2.1.
Calculation of opening / closure force
Using the formulas on this page, approximate calculations can be made for the force required
to open or close the window considering all the factors that determine the calculation.
Symbols used for the calculation
F (Kg) = Force for opening or closing
C (cm) = Opening stroke (actuator stroke)
For horizontal light domes or skylights
F = 0,54 x P
(Eventual weight of snow or wind on the
cupola should be calculated separately).
2.2.
Maximum opening in accordance with sash height
The actuator stroke should be selected in accordance with the height of the sash and
its application. Make sure that the actuator does not touch the profile of the sash when
ATTENTION
P (Kg) = Weight of the window (mobile sash only)
H (cm) = Height of the mobile sash
For vertical windows
,
TOP HUNG WINDOWS
OUTWARD OPENING
(B)
BOTTOM HUNG WINDOWS
F = 0,54 x P x C : H
(Eventual load of favourable or unfavourable
wind
on
the
sash
should
be
separately.)
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moving along its track, and ensure there are no obstacles blocking the opening and that
the rack moves smoothly along the window frame.
A
TTENTION
actuator to the frame or sash. In the event of difficulty, request assistance from
the manufacturer to check application.
3. Technical information about function
The rack actuator performs opening and closing movements for the window using a
round section steel rack. Movement is powered by electricity that feeds a reduction
motor controlled by a functional electronic device.
The opening stroke for the window CANNOT be programmed as it is regulated by the
length of the rod on the reduction motor. The electronic control device allows the rack to
protrude until it encounters an obstacle that blocks its stroke. This could be provided by
the internal lock on the rack or complete closing/opening of the window.
In both outwards and return directions the stroke-end uses a self-defining electronic
process with power absorption, and for this reason, no adjustment is required.
4. Construction and standards
The SKY650 rack actuator has been designed and manufactured to open and close top
hung windows opening outwards, bottom hung windows, dormer windows, light domes,
skylights and louvered windows or sun blades. Specific use is for ventilation and airing
of areas; any other use must previously be approved by the manufacturer.
Application is performed using the brackets provided and any other type of assembly
should be checked with the manufacturer, who will not accept any responsibility for
incorrect or malfunctioning assembly.
Electrical connections must comply with standards in force on the design and
production of electrical appliances.
The actuator has been manufactured according to European Union directives and
conforms to
Any eventual service or control device for the actuator must be produced according to
standards in force and must comply with the standards issued by the European
Community.
The SKY650 actuator comes packaged in a cardboard container which contains two
pieces. Boxes for tandem actuators each contain all parts required for movement of
windows. Each package contains:
(A)
• 2 actuators with 2 metre (±5%) lead.
• 2 standard support brackets with respective grips and fixing screws.
• 2 brackets for fixing to the frame.
• Small parts packaging.
calculated
• Instruction manual.
5. Id plate and marking data
All actuators have
requirements.
. For safety reasons, always check application before fixing the
marking.
marking and are destined for use in the European Union without further
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