Heating engineer
14
3
Figure 3.3
Installation with coaxial pipes with 90° outlet
A Air pipe Ø 49 mm
B
Flue gas pipe Ø 35 mm
C
Adhesive gasket
D Support bracket
E
Wall terminal Ø 35 mm
F
90° casing for coaxial exhaust
A
B
C
D
E
F
Figure 3.4
Installation with wall separate ducts
A Air/flue gas pipe Ø 35 mm
B
Elbow 90° M/F Ø 35 mm
C
Adhesive gasket
D Support bracket
E
Wall terminal Ø 35 mm
F
90° casing for separate exhaust
G Condensate discharge Ø 35 mm
D
A
B
A
A
A
A
A
B
B
B
E
F
C
G
For further information on the installation of the
flue gas exhaust/air intake duct, please refer to the
installation guide for the flue gas exhaust/air intake
ducts D-GPP001, available on the Robur website.
3.4.2.1
Installation with separate ducts
If the appliance is installed with separate pipes, suitable
pipes and components, available as optional, must be
used.
At the design stage, it must be verified that the sum of the
pressure drop of all components used does not exceed
the value of the available residual head (Table 3.2
Table 3.2
Separate exhaust pressure drop table
Description
Code
42M 52M
residual head
Pa
30
35
Air pipe internal Ø 33 mm
OPRL000
Pa/m 2,0
3,0
Horizontal flue gas pipe internal
Ø 33 mm
OPRL000
Pa/m 2,0
3,6
Vertical flue gas pipe internal Ø
33 mm
OPRL000
Pa/m 0,7
2,0
90° elbow on air pipe
OCRV000
Pa
2,0
3,0