Kugerr D100 60, Инструкция по установке и эксплуатации

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When the Narrow Part of the Special Adapter Does Not Fit Into the Chimney Hole:
This means that the diameter of the hole of your kitchen chimney is not compatible with legal
standards, which set 120 mm diameter as a minimum. When pipes under 150 mm diameter are used,
this may increase the noise level of the cooker hood and reduce its suction power.
For optimal noise reduction and suction, ensure that the
chimney hole is at least 120 mm in diameter and is
connected to a 150 mm diameter pipe.
If you use a pipe narrower than 150 mm in diameter, as
shown in the adjacent image, connect the adapter
directly to the motor outlet of the cooker hood. For fixing
the pipe, use the plastic clamps that are provided with
the product.
Note: Types of pipes that are more flexible can have a negative
impact on the noise level of the product. Use of semi-flexible
aluminum pipe is recommended.
CHIMNEY CONNECTION FOR MODELS A150 AND A250
Ideally, use pipes with a diameter of 150 mm for
all cooker hood models (except A100 and A200
models). Using pipes with a diameter less than
this value will increase the noise level of the
product and reduce the suction power. For fixing
the pipe, use the plastic clamps that are provided
with the cooker hood.
Make the pipe connection as shown in the figure.