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Page 27
INSTALLATION
Please DO NOT crush or kink the ducting.
1. Crushed or kinked ducting creates sharp
corners that creates turbulence. This
reduces the size and eciency of the
ducting, lowers extraction and may
cause excessive noise.
BACK DRAFT FINS FOR APPLICABLE MODELS
Should your Back Draft Fins get stuck, this is not a warranty issue.
When installing Back Draft Fins, please ensure that you insert the Back Draft Fins onto the back draft base,
which are attached to the top of the motor outlet before installation.
NOTE: Please make sure when ducting is installed, that it does not impede the Back Draft Fins
from operation.
Back Draft Fins Back Draft Fins
open position
Back Draft Base
2. Sweeping curves and taut ducting reduces
resistance and turbulence. The airow
and extraction will be more ecient
and stronger.
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