Installation instructions for fresh air ventilators
The thermostat-controlled fresh air ventilator is easy to install and can also be installed in existing ventilator holes.
Preparatory work
Hole-making
Drill a hole though the wall using the diameter shown in the table. See figure for suitable location.
| VTK | Ø |
|---|---|
| 80 | 85 mm |
| 100 | 105 mm |
| 125 | 130 mm |
| 160 | 165 mm |
Installation
Complete installation of ventilator, pipe and external wall grille
- Step 1: Cut the pipe to fit the wall thickness.
- Step 2: Install the pipe through the wall and use the attachment lugs to secure the pipe with two screws.
- Step 3: Then install the external wall grille with the extension pipe which is pushed in from the outside towards the wall pipe. Use sealant on the façade, if necessary.
- Step 4: Finish by pressing the ventilator into the wall pipe from the inside. The seal will hold the ventilator in place so no screws are required.
Functional description
The ventilator has a temperature sensitive and completely self-regulating thermostat that regulates the ventilator disc and adjusts the air gap – and thus the amount of air – to the outdoor temperature. In other words, the colder the outside air, the less fresh air is allowed in by the ventilator. If the ventilator is set to the default position, the fresh air supply will gradually decrease down to -5°C.
When the outdoor temperature rises, the ventilator opens gradually and is fully open at +10°C. The ventilator setting can easily be adjusted to any ventilation requirement. Turn the ventilator disc from the default position, clockwise if you want it to close earlier or anti-clockwise for it to be somewhat open at temperatures below -5°C.
