4
x
Set-up and installation
FA ROTEX A1 BOe - 02/2014
15
1
Shaft cross section for DN 80: 135 mm x 135 mm; Shaft cross section for
DN 110: 160 mm x 160 mm
Tab. 4-4 Maximum permissible height of the flue gas line in m
(when operating in nominal output range) - A1 BO 34-e
Any restriction on the output range may require a recalculation of
the maximum permitted height for the flue gas pipe. The charac-
teristics for the flue gas calculation can be obtained from fig. 4-6
and chapter 15.2 "Emissions measurement".
The flue gas mass flow of the systems depends on the burner
output set.
4.5.2 Connecting the flue gas line to the ROTEX A1
BO
Requirements
– The flue system fulfils the requirements described in
section 4.5.1.
– The flue system fulfils any other required national or regional
safety requirements.
– The ROTEX A1 BO is installed correctly.
Connection
Ɣ
Connect ROTEX A1 BO to the flue gas system within the
place of installation (for pipe dimensions, see fig. 4-2 or
fig. 4-7).
Ɣ
Place the nameplate of the flue gas pipe in the installation
room.
Tab. 4-5 Connection dimensions for LAS connection to the ROTEX
A1 BO
Set-up
version
(ref. fig. 4-4)
A1 BO 34-e
30 kW
DN 80
34 kW
DN 80
34 kW
DN 110
1
1)
20
8
24
2
1)
21
21
30
3
1)
21
17
30
4
20
20
28
5
11
11
23
6
11
11
23
m
AG
Flue gas mass flow
P
Burner output
Fig. 4-6
Flue gas mass flow in relation to the burner output
Basically, any flue gas line that complies with the
minimum requirements according to the EN 14471 and
that has the CE-labelling can be connected (see
section 4.5.1).
Each flue gas line must be installed with a suitable test
adapter for checking and setting the combustion
values. The ROTEX LAS construction sets each in-
clude a test adapter (
D8 PA
,
15 50 79.00 93
).
We recommend the use of the associated ROTEX flue
gas set (see fig. 4-8). They satisfy all requirements and
are also fitted with special acid-proof seals.
A
Boiler connection
B
Flue gas connection
C
Flue gas temperature sensor
D
Connection for condensate drain
Fig. 4-7
Connection dimensions for LAS connection to the ROTEX
A1 BO
Connection
side
Connection
Connection dimension
in mm
A
Boiler side
A1
Flue gas DN 80
Collar
Inside diameter
= 80.4
+0.8
A2
Supply air DN 125
Collar
Inside diameter
= 127.0
-0.5
B
Flue gas
side
B1
Flue gas DN 80
Outside diameter
= 80.0
+0.3
B2
Supply air DN 125
Outside diameter
= 126.0
±0.3
In some cases, the resonance in the flue system can
amplify the noise at the mouth of the flue gas pipe. The
noise level can be effectively reduced with the applica-
tion of a silencer (
E8 MSD,
15 45 78
bzw.
E11 MSD,
15 45 79
).
Air suction noises are generated during ambient air-
dependent operation. The noise level can be effectively
reduced with the application of a silencer (
G ZLSD,
15 45 77
).
