Fisher & Paykel HP90IHCB3 Installation Instructions & User Manual page 13

INSTaLLaTION INSTRuCTIONS
Venting options
Attention should be given to ensure that any applicable regulations concerning the
discharge of exhaust air are fulfilled.
The cooker hood can be installed to operate with the exhaust air ducted externally from
the kitchen, or installed to operate with the exhaust air recirculating within the kitchen.
Ducted
For ducted installation it is recommended that 150 mm diameter, rigid or semi-rigid
ducting is used. This will require a 160 mm (min) round hole in the ceiling or wall. Care
should be taken to position the hole correctly.
For optimal efficiency, use rigid or semi-rigid ducting for reduced noise and increased
airflow. Flexible ducting should only be used as a last resort (ie in difficult installations)
and if used, ensure that it is pulled tight.
Recirculating
This cooker hood can be installed to operate in recirculation mode, where ducting
outside is not a practical option. Ensure that the top ducting outlet is not obstructed.
Even a partial obstruction will restrict the efficiency of the cooker hood. To enable the
product to operate with the air recirculating, please purchase carbon filters (refer to
'Parts and Accessories'). The carbon filters are required to remove odours.
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