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VELUX 141

Sun tunnel

TUNNEL

The tunnel is available in two types:

• a exible breglass tunnel with a highly

reﬂective surface (in TCF, TLF and TWF).

Maximum supplied length:

TCF = 1000 mm,

TLF/TWF = 2000 mm

• a rigid aluminium tunnel with a highly

reﬂective coating (in TLR and TWR).

Supplied length: 1085 mm

The rigid tunnel can be extended with ex-

tension section ZTR in lengths of 600 mm

or 1200 mm.

Note! To prevent condensation problems,

the vapour barrier must always be con-

nected to the light diuser unit.

LIGHT DIFFUSER UNIT

Seen from the inside, the sun tunnel ends in

a frosted light diuser discretely framed by

a white ceiling ring.

Various accessories available, such as:

• ceiling trim rings ZTB in various colours

• light kit ZTL

• ventilation outlet ZTW for TWF/TWR

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Velux GGU INTEGRA Bedienungsanleitung Seite 141