21
F, F
g,
F
k
= opening / closing force (N)
P
= sash weight (kg)
A
= window area (m
2
)
H
= sash high (mm)
C
=
opening distance of sash (mm)
F
w
=
wind load
For light domes or horizontally installed windows
Calculating the drive force of depending on the sash weight P
F
= 5,4 x P
For vertically installed tilt or top hung windows
Calculating the drive force depending on the sash weight P
F
g
= 5,4 x P x C / H
Calculating the drive force depending on the wind load Fw
F
k
= F
w
x A / 2
Calculating the drive force depending on the sash weight Fg and the
wind load Fw
F= F
g
+ F
k
2.4 Installation
(mechanical)
Danger!
Danger!
Installation must only be carried out by trained and qualified personnel.
Danger!
Crushing hazard
During the automatic opening or closing of the window, push and pull forces of up to 300 N
occur. These forces can crush limbs when reaching between sash and frame,
especially since
the motor repeatedly tries to complete the lift.
9
Keep children, disabled people and animals away from the window.
9
Do not reach between sash and frame when the motor is running.
9
In the case of a window sash installed below 2.50 m, secure all crushing and shearing
points to ensure that people do not accidentally reach into them. Observe VFF leaflet
KB.01:
"Power-Operated Windows
"..
Wind load in dependence
on the building height
height F
w
0-8m 500N/m
2
8-20m 800N/m
2
20-100m 1100N/m
2
100< m 1300N/m
2
22
Danger!
Risk of injury
Motorised tilting windows must always be equipped with a safety catch to prevent injury due to
falling sashes.
Also with the motor being mounted on a window already installed, you may be injured by the
sash opening suddenly.
9
Use appropriate safety devices such as security stays to catch the window.
9
The safety device must be adapted to the stroke of the drive. To avoid a blockade, the
opening width of the safety device must be larger than the drive stroke.
Caution!
Risk of installation errors
9
When installing fittings, verify their faultless functioning.
9
Follow the enclosed installation drawings exactly.
9
Install the motor in such a way that it is always accessible.
9
Follow the installation drawing which is enclosed in the fastening kit or can be ordered by your
responsible distribution company. The drawing contains all dimensions depending on the installa-
tion method and the profile system.
9
All dimensions of the particular location are the responsibility of the installer.
9
Before working on the profiles, take note of the following:
-
Minimum sash width
-
Minimum sash height
-
Maximum sash weight
-
Possible wind- and snow loads
-
Space required on the profile according to the installation method
9
Check the required minimum distances.
9
Carry out a function test. Use the appropriate Gretsch-Unitas testing and setting apparatus for this
purpose (see section "2.7 Components and accessories").
2.5 Installation
(electrical)
Danger!
Risk of electric shock
Electrical installation on site must be carried out by a qualified electrician only.
9
For electrical installation on site observe VDE (German Electrical Engineers Association)
regulations and the requirements of the local mains supplier.
9
Disconnect mains supply before carrying out any work on the installation or the control unit.
Danger!
Caution!
Risk of destroying the motor
The motor requires a 230 V connection. Other voltages will destroy the motor.
9
Connect the motor accordingly.
9
Do not lay the motor connecting cable together with a mains wire
9
Never connect 24 V DC drives to 230 V ! Danger of life !
9
Low-voltage lines and power lines must be wired separately.
