Ravelli o-ring, User Manual

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Safe distances for proper installation of chimney terminal:
Symbol Description
Clearance area
[mm]
c Distance measured at 90° from roof surface 1300
a Height above roof ridge 500
La Release quota deve trovarsi al di fuori della zona di reflusso calcolata secondo il diagramma
e la tabella sopra riportate. In prossimità del colmo, si considera la minore tra le due.
The flue system of the pellet stoves operate with
negative pressure
(see LH of the roof) the
part marked with gray is the reflu area and the chimney terminal should therefore release the
fume above these area.
Symbol
Description
[mm]
Release area [mm]
Z
Height measured in
vertical plane
(See figure 8)
B X
•
500 Z + A
A
Height above the
obstacle
200
Symbol Description
Clearance area
[mm]
Dormer
window(2)
A Side distance from dormer window 1500
B Height above the ridge of dormer window frame 1000
L Front distance from dormer window 3000
Skylight (1)
C Distance from top or side line of openings or windows 1000
D Distance from the smaller line of openings or windows 3000
V Height above openings or windows 1000
Distance [mm] Release quota Distance [mm] Release quota
X
•
2 000 Z + A
2
X
•
3 000 Z + A
2
X
>
2 000 B X
>
3 000 B
The symbol Z marks the height (mm) of the obstacle or thermal compartment; for quotas A
2
and B see table 10.
Distances depending on the distance of the terminal from the obstruction without openings (roof
with slope
β ≤
a 10° (17,6%).
90°
c
a
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