It can only open bottom hinged windows which not require pushing force for the opening.
Only to be used for bottom hinged windows which do not require force in push action.
Maximum opening stroke: 25 cm. It can be adjusted on the end stroke spring placed in correspondence of the control operator.
For windows with height inferior to 50 cm it is necessary to reduce the stroke to 1/3 of the window height.
It is not necessary to work the conduit.
In systems with more windows it is necessary to use rotary junction boxes to transmit the cable movement from the main line to the auxiliary ones.
For windows wider than 1,5 m it is necessary to apply two or more thrust points.