Unit overview

1

Housing with motor

2

Impeller

3

Cable grommet

4

Electronics cover

5

Internal grille or internal shutter

5.1

Fixed internal grille

5.2

Electrically operated internal shutter

5.3

Bimetal

6

Cover

7

Designer cover

8

Electronic circuit boards

8.1

Standard electronics

8.2

Sensor electronics (only for models F, H and B)

8.3

VZC electronics

9

Sensors

9.1

Motion sensor B

9.2

Light sensor F

9.3

Humidity sensor H