16
4 205 116 / 02
Technical information
4.3 Fitting the burner
- Depending on the size of the burner flange,
an intermediate flange may be required to attach
the burner.
- To allow the burner to be swung out 90° to the
left or right, the connections must be flexible and
routed to the burner in sufficiently large loops.
- The cavity between burner pipe and boiler flange
must be insulated with the fireproof fibre provided.
4.3.1 Sound insulation
- Gas pipes must be mounted in such a way that no
vibrations are transferred to the building.
- The burner can be equipped with a sound-absorbing
hood.
- We recommend that you install silencers downstream
of the boiler in the flue gas pipe.
Do not overtighten boiler door screws.
Figure 11
A
E
J
G
H
innen
L
M
Figure 12
Uno-3
A
B
C
D
E
F
G
H
J
L
M
Ø
Ø
Ø
90-125
140 170 400 165 119 248 440 974 307 30
25
Fill the gap with insulating material
inside
