Vents VN E 80 User Manual page 18

Centrifugal extract fan

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Before proceeding with the fan installation check the position of backdraft damper 2 which must close

under its own weight in the absence of air flow (Fig. 56). By default the position of backdraft damper

corresponds to the outlet connection to the right or upwards. If the outlet connection is pointed to the

left after the installation remove the backdraft damper from outlet pipe 1, turn the damper 180° and

insert it into the pipe.

For sectional air vents use rectangular-section steel ducts or SPIROVENT spirally wound air vents.

For air duct connections use ALUVENT or THERMOVENT flexible air ducts.

The nominal diameter of air duct connections is 80 mm.

If the connection air duct is concealed within a brick wall it should be wrapped with self-adhesive PVC

tape to prevent mortar-induced corrosion

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Kv 80 Kp 80 Kvk 80 Vnv-1 e 80 e Vnv-1 e 80 kvk ... Show all