Hoval RoofVent CON-9, Design Handbook

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2.2 Air distribution with the Air-Injector
The patented air distributor – called the Air-Injector – is the
core element. The air discharge angle is set by means of the
adjustable guide vanes. It depends on the air flow rate, the
mounting height and the temperature difference between
the supply air and room air. The air is therefore blown into
the room vertically downward, conically or horizontally. This
ensures that:
■ a large floor area is ventilated and heated by each
RoofVent
®
LH,
■ no draughts occur in the occupied area,
■ the temperature stratification in the room is reduced, thus
saving energy.
Above-roof unit:
Roof unit
Below-roof unit:
a
Filter box
b
Heating section
c
Air-Injector
Fig. I1: Components of the RoofVent
®
LH
a
b
c
RoofVent
®
LH
Construction and operation