15
Ducting
The extractor can be used as a recirculation device or as an extraction
device, depending on your installation. Both types will require ducting.
The hood is more effective when used in the extraction mode
(ducted to the outside). In this mode, charcoal filters are not required.
The ducting used must be 150mm, rigid circular pipe and must be
manufactured from fire retardant material, produced to BS 476 or DIN
4102-B1.
Wherever possible utilise rigid circular pipe which has a smooth
interior, rather than the expanding concertina type ducting. The
lengths of the ducting without performance being affected are as
follows:
•
4 metres with 1 x 90° bend.
•
3 metres with 2 x 90° bends.
•
2 metres with 3 x 90° bends.
Longer ducting can be used but the performance of the extractor will
likely be reduced.
Please note
: Ducting components and ducting kits are optional
accessories and have to be ordered, they are not automatically
supplied with the hood. Use of ducting less than 150mm in diameter
will affect performance and increase the noise produced by the
extractor.
Summary of Contents for EVX110
Page 22: ...22 NOTES...
