32
Combustion air inlet
The combustion air inlet, with separate ducts, is assembled as
follows:
– remove the air outlet cap (5); choose your preferred air vent
from the two available
– cut the bottom of the cap (6) using a suitable tool (see (a))
– turn over the cap (5) (see (b)) and refit it on the air vent, insert-
ing the seal (7)
– fix everything in place with the screws removed previously.
The overturned cap (5) is now the attachment for the first compo-
nent on the air inlet duct.
NOTE:
If installing kit 8089913, the cap (5) on the boiler must be
replaced with the cap supplied in the accessory kit.
6
b
a
7
5
5
Fig. 40
Smoke outlet and combustion air inlet fittings
180
120
75
225
Ø 60
Ø 60
155
115
225
115
450
Fig. 41
Load loss accessory Ø 80 mm
Description
Code
Load loss (mm H
2
O)
MURELLE.
HT 25
MURELLE.
HT 30
Inlet
Outlet
Inlet
Outlet
Separate duct kit
8089912
-
-
-
-
90° curve MF
8077450
0,20
0,25
0,25
0,30
45° curve MF
8077451
0,15
0,15
0,20
0,20
Horizontal extension W.
1000 mm
8077351
0,15
0,15
0,20
0,20
Vertical extension W.
1000 mm
8077351
0,15
0,15
0,20
0,20
Wall terminal
8089501
0,10
0,25
0,10
0,35
Wall coaxial outlet (*)
8091210
-
-
-
-
Roof outlet terminal (*)
8091204
0,80
0,10
1,10
0,15
Accessory kit C(10)3
6296543
-
1,2
-
1,8
Description
Code
Load loss (mm H
2
O)
MURELLE.HT 35
Inlet
Outlet
Separate duct kit
8089912
-
-
90° curve MF
8077450
0,30
0,40
45° curve MF
8077451
0,25
0,25
Horizontal extension W.
1000 mm
8077351
0,25
0,25
Vertical extension W.
1000 mm
8077351
0,25
0,25
Wall terminal
8089501
0,15
0,50
Wall coaxial outlet (*)
8091210
-
-
Roof outlet terminal (*)
8091204
1,5
0,2
Accessory kit C(10)3
6296543
-
2,2
Load loss accessory Ø 60 mm
Description
Code
Load loss (mm H
2
O)
MURELLE.
HT 25
MURELLE.
HT 30
Inlet
Outlet
Inlet
Outlet
Separate duct kit
8089913
2,50
0,50
2,50
0,50
90° curve MF
8089921
0,40
0,90
0,50
1,10
45° curve MF
8089922
0,35
0,70
0,45
0,90
Horizontal extension W.
1000 mm
8089920
0,40
0,90
0,50
1,10
Vertical extension W.
1000 mm
8089920
0,40
0,60
0,50
0,70
Wall terminal
8089541
0,50
1,20
0,80
1,40
Wall coaxial outlet (*)
8091210
-
-
-
-
Roof outlet terminal (*)
8091204
0,80
0,10
1,10
0,15
Description
Code
Load loss (mm H
2
O)
MURELLE.HT 35
Inlet
Outlet
Separate duct kit
8089913
2,50
0,50
90° curve MF
8089921
0,60
1,40
45° curve MF
8089922
0,55
1,20
Horizontal extension W.
1000 mm
8089920
0,60
1,40
Vertical extension W.
1000 mm
8089920
0,60
0,80
Wall terminal
8089541
-
1,60
Wall coaxial outlet (*)
8091210
-
-
Roof outlet terminal (*)
8091204
1,50
0,20
(*) The losses of the roof outlet terminal at inlet include the man-
ifold code 8091400.
