6
Extract air fan
1
Supply air fan
2
Fine filter for supply air
3
Heat recovery cell
4
Bypass damper of the HR cell
5
Coarse filter for supply air
6
Coarse filter for extract air
7
R model in the figure
MAIN PARTS
Post-heatingresistor
(in the supply air duct)
8
Safety switch
9
Internal carbon dioxide and
humidity sensor
10
Control panel
11
Carbon dioxide sensor (optional)
12
Humidity sensor (optional)
13
VOC sensor (Optional)
14
Ceiling bushing for electric wires
15
INTRODUCTION
1
5
3
6
8
9
10
7
2
4
13
12
11
14
15
AN
NU
AL EF
FICIENC
Y R
ATIN
G
O
F E
XT
RA
CT A
IR
HEA
T R
EC
OV
ER
Y
A
+
Summary of Contents for D3741
Page 21: ...CONFORMITY CERTIFICATES...
Page 22: ...22...
