User manual

INSTALLATION
21
FIXING THE FRAME
• Loosenthetwoscrewsfasteningthelowerchim-
ney and remove this from the lower frame.
• Loosenthetwoscrewsfasteningtheupperchim-
ney and remove this from the upper frame.
Ifyouwishtoadjusttheheightoftheframe,proceed
as follows:
• Unfasten the metric screwsjoining the two col-
umns, located at the sides of the frame.
• Adjusttheframetotheheightrequired,thenre-
place all the screws removed as above.
• Insert the upper chimney stack fromabove, and
leave it running free on the frame.
• Lift up the frame, fit  the frame slots onto the
screws up to the slot end positions.
• Tightenthetwoscrewsandfastentheothertwo
screws provi-ded with the hood.
Before tightening the screws completely it is possible
toadjusttheframebyturningit.Makesurethatthe
screws do not come out of their seats in the slotted
holes.
• Theframemountingsmustbesecuretowithstand
the weight of the hood and any stresses caused by
the occasional side thrust applied to the device.
On completion, check that the base is stable, even
iftheframeissubjectedtobending.
• Inallcaseswheretheceilingisnotstrongenough
at the suspension point, the installer must provide
strengthening using suitable plates and backing
pieces anchored to the structurally sound parts.



