Hoval RoofVent CON-9, Design Handbook

Page: 67 / 280

65
D
E
F
G
H
I
J
K
L
M
N
2.2 Air distribution with the Air-Injector
The patented air distributor – called the Air-Injector – is
the core element. The adjustable vanes are used to set
the air discharge angle. 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 in verti-
cally downward, conically or horizontally into the room. This
ensures that:
■ each RoofVent
®
twin heat ventilates and heats a large
floor area,
■ no draughts occur in the occupied area,
■ the temperature stratification in the room is reduced, thus
saving energy.
Above-roof unit:
Roof unit with energy recovery
Below-roof unit:
a
Combi box
b
Air-Injector
Fig. D1: Components of the RoofVent
®
twin heat
a
b
RoofVent
®
twin heat
Construction and operation