LUNOS 039947 Sound Insulation Inner Cover 250x250x78mm 9/IBS

Product information „Lunos 039947 Internal Cover 9/IBS with Sound Insulation for Round Duct Ø 160 mm, incl. G2 Filter, white“

The Lunos Internal Cover 9/IBS (Art. No. 039947) is a high-quality sound-insulating internal cover for ventilation systems with a 160 mm round duct. It reduces both external noise and the ventilation system’s own noise, thereby providing increased living comfort.

Thanks to the integrated sound insulation, the standard sound level difference can be increased by up to 6 dB. The internal cover is also mechanically lockable and can be comfortably operated via a touch mechanism with locking and spring elements.

The supplied G2 filter is suitable for use with ALD and ALD-S systems. Depending on the ventilation unit, G3 or optional pollen filters can also be used as alternatives.

Advantages at a glance

✅ Original Lunos accessory
✅ Integrated sound insulation
✅ Increase of the standard sound level difference by up to 6 dB
✅ Reduction of external and own noise
✅ Mechanically lockable
✅ Comfortable touch mechanism
✅ Washable filter inserts
✅ Includes G2 filter

Technical details

✔ Manufacturer: Lunos
✔ Article number: 039947
✔ Type: 9/IBS
✔ Duct connection: Round duct Ø 160 mm
✔ Material: Plastic
✔ Colour: White (similar to RAL 9016 Traffic White)
✔ Closure: Mechanical with touch mechanism

Filter equipment

✔ Includes G2 filter for ALD and ALD-S

Other possible filters:

✔ G3 filter for e², AB 30/60 and RA 15-60
✔ Optional pollen filter available

Compatibility

✔ Lunos e²
✔ Lunos ALD
✔ Lunos ALD-S
✔ Lunos AB 30/60
✔ Lunos RA 15-60

Not suitable for

✘ Lunos ego (Art. No. 040112)

Sound insulation

✔ Increase of the standard sound level difference by up to 6 dB
✔ Reduction of external noise
✔ Reduction of the ventilation system’s own noise

Dimensions

✔ Height: 250 mm
✔ Width: 250 mm
✔ Depth closed: 71 mm
✔ Depth open: 86 mm
✔ Installation depth in round duct: 20 mm
✔ Suitable for internal diameter: 154 mm

Features

✔ Washable filter inserts
✔ Quick opening and closing via locking and spring elements
✔ Maintenance-friendly design
✔ High operating comfort
✔ Original Lunos system accessory

Areas of application

– Controlled residential ventilation
– Living and sleeping rooms
– New builds and renovations
– Sound-optimised ventilation systems
– Ventilation systems with Ø 160 mm round duct

The Lunos Internal Cover 9/IBS combines effective sound insulation with easy operation and high maintenance friendliness. It is ideal for optimising ventilation systems in living spaces where particularly high acoustic comfort is required.