nekos SKYRO 850 Instruction Manual Download Page 3

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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  cons
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 according to height of sash

The actuator can be recessed mounted in the frame as well as outside on the frame or on
the sash. In any case the actuator
its application. Check that the actuator
that there are no obstacles for the opening or it does not exert force on the window frame.

TTENTION

. For safety reasons the actuator should not be assembled if

dimensions are inferior to those indicated in the table below. In the event that
the height of the sash should be lower, call on the manufacturer to check the
appliance.

3. GENERAL INFORMATION ABOUT THE

The  SKYRO  850  actuator  moves  the  window  by  means  of  a
device.  The  rack  is  moved  by  a
powered  and  controlled  by  an  electronic  card.  The  opening  and  closing  movement
determined  by  the  polarity  of
carried out

(see wiring diagrams on page 15).

FORMULAS AND RECOMMENDATIONS FOR INSTALLATION

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

Symbols used for the calculation

Force for opening or closing

P (Kg) = Weight of the window (mobile sash only)

Opening stroke (actuator stroke)

H (cm) = Height of the mobile sash

For horizontal light domes or

F = 0,54 x P

(Eventual weight of snow or wind on the
cupola should be calculated separately.)

For vertical windows



TOP HUNG WINDOWS

OUTWARD OPENING



BOTTOM HUNG WINDOWS

F = 0,54 x P x C : H

(Eventual

load

favourable

unfavourable wind on the sash should be
calculated separately.)

Maximum opening according to height of sash

The actuator can be recessed mounted in the frame as well as outside on the frame or on
the sash. In any case the actuator stroke is in accordance with the height of the sash and

the actuator stroke does not touch the profile of the sash and

that there are no obstacles for the opening or it does not exert force on the window frame.

safety reasons the actuator should not be assembled if

dimensions are inferior to those indicated in the table below. In the event that
the height of the sash should be lower, call on the manufacturer to check the

GENERAL INFORMATION ABOUT THE ACTUATOR

The SKYRO 850 actuator moves the window by means of a rack

is moved by a gear motor driven by an electric motor, which in turn is

powered and controlled by an electronic card. The opening and closing movement
determined by the polarity of the power supply wires depending on how the wiring is

(see wiring diagrams on page 15).

FORMULAS AND RECOMMENDATIONS FOR INSTALLATION

Using the formulas on this page, approximate calculations can be made for the force

idering all the factors that determine the

Weight of the window (mobile sash only)

Height of the mobile sash

For vertical windows

OUTWARD OPENING

(A)

BOTTOM HUNG WINDOWS

(B)

F = 0,54 x P x C : H

load

favourable

unfavourable wind on the sash should be

The actuator can be recessed mounted in the frame as well as outside on the frame or on

stroke is in accordance with the height of the sash and

does not touch the profile of the sash and

that there are no obstacles for the opening or it does not exert force on the window frame.

safety reasons the actuator should not be assembled if

dimensions are inferior to those indicated in the table below. In the event that
the height of the sash should be lower, call on the manufacturer to check the

rack that runs inside the

driven by an electric motor, which in turn is

powered and controlled by an electronic card. The opening and closing movement is

the power supply wires depending on how the wiring is

The opening and closing stroke
through power absorption when the rac
internal stop in the rack or complete opening/closure of the window); therefore, no
adjustments are required and the end position depends on the length of the rod connected
to the gear reducer or the stroke set during production.

During initial operation, the actuator memorises the stroke end position; during subsequent
operation, it maintains the memorised stroke end positions and also adjusts the start and
stop ramp.

4. CONSTRUCTION AND REGULATORY

INTENDED USE.

The SKYRO 850 rack actuator is designed and built to move

awning  windows,  bottom
dormer  windows  and  skylights.  Its  use  is  specifically  intended  for  ventilation  and
natural  air  conditioning  of  rooms;  any  other  use  is  strongly  discouraged,  with  the
supplier of the entire system in any case retaining sole liability.
The  actuator  is  manufactured  in  accordance  with  the  Directives  and  following
Regulations listed in the attached Declaration of Incorporation and Conformity
Electrical connections must conform to regulations in force for the de
up of electrical equipment.
To ensure efficient separation from the grid, an approved type of bipolar “dead
switch should be used. An omnipolar general power switch with minimum distance of
3 mm between contacts should be installed upstre

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.

The SKYRO 850 actuator is individually packaged in a cardboard container and each pack
contains:

• 1

actuator with 2 metre (±5%) lead,

• 1

standard support bracket with respective grips and fixing screws,

•

bracket for fixing to the frame,

• Small parts packaging

• Instruction manual

IMPORTANT: The Syncro³ version of the actuator comes individually
packaged in a cardboard box and is factory tested as an individual machine

When installing a system that requires the use of several Syncro³ actuators
or a K-LOCK electro

§ 12.1).

The opening and closing stroke-end stop occurs with an automatic positioning process
through power absorption when the rack encounters an obstacle that stops its stroke (the
internal stop in the rack or complete opening/closure of the window); therefore, no
adjustments are required and the end position depends on the length of the rod connected

ke set during production.

During initial operation, the actuator memorises the stroke end position; during subsequent
operation, it maintains the memorised stroke end positions and also adjusts the start and

CONSTRUCTION AND REGULATORY REFERENCES

The SKYRO 850 rack actuator is designed and built to move

awning windows, bottom-hung windows, parallel-opening windows, light domes,
dormer windows and skylights. Its use is specifically intended for ventilation and

conditioning of rooms; any other use is strongly discouraged, with the

supplier of the entire system in any case retaining sole liability.
The actuator is manufactured in accordance with the Directives and following
Regulations listed in the attached Declaration of Incorporation and Conformity
Electrical connections must conform to regulations in force for the de
up of electrical equipment.
To ensure efficient separation from the grid, an approved type of bipolar “dead
switch should be used. An omnipolar general power switch with minimum distance of
3 mm between contacts should be installed upstream of the control line.

individually packaged in a cardboard container and each pack

actuator with 2 metre (±5%) lead,

standard support bracket with respective grips and fixing screws,
bracket for fixing to the frame,

IMPORTANT: The Syncro³ version of the actuator comes individually
packaged in a cardboard box and is factory tested as an individual machine

When installing a system that requires the use of several Syncro³ actuators

LOCK electro-lock, a new RESET procedure must be performed.

end stop occurs with an automatic positioning process

k encounters an obstacle that stops its stroke (the

internal stop in the rack or complete opening/closure of the window); therefore, no
adjustments are required and the end position depends on the length of the rod connected

During initial operation, the actuator memorises the stroke end position; during subsequent
operation, it maintains the memorised stroke end positions and also adjusts the start and

The SKYRO 850 rack actuator is designed and built to move

opening windows, light domes,

dormer windows and skylights. Its use is specifically intended for ventilation and

conditioning of rooms; any other use is strongly discouraged, with the

Electrical connections must conform to regulations in force for the design and set

To ensure efficient separation from the grid, an approved type of bipolar “dead-man”
switch should be used. An omnipolar general power switch with minimum distance of

am of the control line.

Application is performed using the brackets provided and any other type of
assembly should be checked with the manufacturer, who will not accept any

individually packaged in a cardboard container and each pack

standard support bracket with respective grips and fixing screws,

IMPORTANT: The Syncro³ version of the actuator comes individually
packaged in a cardboard box and is factory tested as an individual machine.

When installing a system that requires the use of several Syncro³ actuators

procedure must be performed.

(see