7
4.0 Technical Data
412
552
Mounting
Brackets
Side View
Ø
98
100
280
285
4
Lower
Fixing Hole
E
x
h
a
u
s
t
O
u
t
F
re
s
h
A
ir
In
H
o
t
S
ta
le
A
ir
I
n
W
a
rm
A
ir
O
u
t
Air Flow System
Clean Air
Stale Air
Front View
Fig. 6
Flow Rate Vs Pressure Chart
Fig. 5
The unit has six speeds. One of the lowest five can be selected for normal speed. One of the top 3 can be
selected for boost speed. The performance curve chart gives the ventilation rates at each fan speed compared
to the pressure drop of the system.
102
100Pa @
100m³/h
0
50
100
150
200
250
300
350
400
0
20
40
60
80
100
120
140
160
180
200
P
re
s
s
u
re
(
P
a
)
0
5
10
15
20
25
30
35
40
45
50
Volume (l/s)
55
Volume (m³/h)
Extract
Supply
1
2
3
4
5
6