24
6.11.2 installation of coaxial flues 60/100mm –
80/125mm
Coaxial flue kits that are supplied separately. the diagrams
below, illustrate some examples of fluing options allowed and
the maximum lengths than can be achieved. it is essential that
a flue gas analysis point is made available directly above the
boiler.
C32
6
5
3
2
C43
3
4
2
x
y
x + y = L (m)
H (m)
C12
1
2
1
L (m)
2
H (Horizontal) m
IMPORTANT:
– The insertion of each additional 90° bend with a diameter of 60/100 (code 8095801) reduces the available section by 1 meter.
– Each additional 45° curve installed a diameter of 60/100 (code 8095900) reduces the available length by 0.5 metres.
HORIZONTAL FLUES MUST BE LEVEL
NOTE: Before connecting accessories, it is always advisable to lubricate the
internal part of the gaskets with silicon products. Avoid using oils and greases.
V
(V
ertic
al)
m
LIST OF ø 60/100 ACCESSORIES
1
Coaxial duct kit L. 790 code 8084811
2a
Extension L. 1000 code 8096103
2b
Extension L. 500 code 8096102
3
Vertical extension L. 140 with coupling code 8086908
5
Tile for joint code 8091300
6
Terminal for roof exit L. 1285 code 8091200
Model
Length of pipe Ø 60/100
H
(m)
V
(m)
Min. Max.
Murelle Pro 25 LPG
3,5
1,3
5
Fig. 19
diaphragms for coaxial ducts
Boilers leave the factory equipped with a diaphragm (1) Ø 79
mm.
When the outlets are type c12 the diaphragm is to be removed
or kept following the indications below:
model
diaphragm
for duct l
murelle pro 25 lpg
Yes
(leave mounted)
< 1 m
murelle pro 25 lpg
No
(remove it)
> 1 m
When the outlet istype c32 (vertically straight without any
curves), the presence of the diaphragm modifies the maximum
length of the duct as shown below:
model
diaphragm
max l (m)
murelle pro 25 lpg
Yes
2,5
murelle pro 25 lpg
No
5
1
Fig. 20
