Best IS170 Mode D'emploi page 8

Non-ducted recirculation configuration
Purchase a Non-ducted recirculation KIT
from your dealer (Model NDIS170).
1. Insert the non-ducted recirculation plenum
through the support frame openings.
Secure the non-ducted recirculation
plenum using two (2) brackets and four (4)
mounting screws (3.9x9.5mm).
Fix a flexible duct to the duct connector of
the non-ducted recirculation plenum.
2. Secure the upper flue to the support frame
with the mounting screws 3.9x9.5mm (air
vents must be up).
3. Insert the lower flue moving it completely
towards the top and fix it temporarily with
mounting screws (3.9x6 mm).
UPPER FLUE
MOUNTING
SCREWS
(3.9x9.5mm)
RETAINING
SCREWS
(3.9x6mm)
LOWER FLUE
MOUNTING
SCREWS
(3.9x9.5mm)
BRACKETS
DUCT
CONNECTOR
FLEXIBLE
DUCT
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NON-DUCTED
RECIRCULATION
PLENUM