Coltlite - LWST
Description
Coltlite LWST natural louvred ventilator, suitable for natural day to day ventilation and smoke control. Tested to and in compliance with EN 12101-2, and CE marked. For installation in the vertical only. Completely flat glazed appearance.
Detailed Description
Thermally broken extruded aluminium outer frame, either 47 or 50mm thick, with flush framed louvres with thermal breaks to both outer and internal sections.
Dimensions / size range
From 250mm to 1600mm in width, and from 250mm to 3000mm in height as one module.
Frame
Thermally broken, 47/50mm deep. Glazing seals comprise double weather strips with a nylon lip between and two overlapping weather seals for excellent air-tightness.
Louvres
- 32/34mm overall clear toughened, float or laminated double glass
- 32/34mm overall insulated metal skin panel infill.
No visible louvre frame from the outside
Blade Pitch
200- 350mm (depending on overall size of complete unit) with central pivot point. Blade frame to be a maximum of 44mm between glass surfaces from inside only.
Colours/ finishes options
- Polyester powder paint to a RAL colour, standard 75 mu
- Anodised, standard 20 mu
Fixing options
- Fixing to curtain walling using 24 to 36mm thermally broken glazing frame adaptor
- Fixing to structural opening using either through frame or strap fixings.
Controls options
- Lever
- Crank handle
- 230 volt AC motor
- 24 volt DC motor
- Pneumatic cylinder
Frame mounted motor (hidden behind side frame profile) positioned at:
on either side frame and with a typical operation time of 15-30 seconds.
- Optional device to reduce the speed and force of closing louvres, to reduce the risk of finger squeezing (electric versions only).
If used as a smoke ventilator, activation is either by local thermal fuse which opens the unit at a pre-selected temperature, or by responding to an external release signal.
Performance
Tested to and in compliance with EN 12101-2 and CE marked.
