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With bottom hung windows injury could be caused if the window accidentally
falls. An appropriately sized flexible link arm or fall prevention safety system
designed to resist a force equal to at least three times the total weight of the
window MUST be installed.
Danger of crushing or dragging. During function, when the actuator closes the
window, a force of 550N is exerted on the bead of the frame, enough to crush
fingers in the event of distraction.
In the event of breakage or malfunction, switch the appliance off at the
general switch and call for the services 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).
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.)
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
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.
Technical data
Model
Thrust and traction force
Course lengths
Input voltage
Current absorption at nominal load
Travel speed without load
Length of run without load
Double electrical insulation
Type of service
Max. and min. temperatures for function
Degree of protection for electrical devices
Adjustment of socket at casing
Connection in parallel of two or more motors
(A)
Connection in tandem or in series
Limit switch stop at opening and closure
Protection against overload at opening and
closure
calculated
Dimensions
Weight
Information presented in these illustrations is not binding and is also subject to variation without prior notice.
(*) Technical personnel can shorten track runs by adjusting the internal limit switches.
Page 5
Page 6
. For safety reasons, always check application before fixing the
180, 230, 350, 550, 750, 1000 mm (*)
110-230V~ (a.c.) 50/60 Hz
0,250 A (110V) / 0,160 A (230V)
In accordance with length of truck run
103x47x(Course length+135) mm
Varies according to construction
SKY 450
450 N
5,5 mm/s
Yes
S
of 4 min
2
-5 +55 ºC
IP44
Position self regulating
Yes
Yes
At absorption of power
At absorption of power
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