Ferroli TEMPRA 30 Installation, Service And User Instructions Manual page 14

3.03 Top Outlet Concentric Flue Connection
3.03.1 Vertical concentric connection
Concentric
Vertical
Connector
3.03.2 Horizontal concentric connection
A 90° bend (fig. 13) is supplied for the horizontal connection of air and flue gas pipes. This can be oriented
towards the chosen wall in degrees of 45°.
1KWMA31Y
95
230
Slope downwards away from the boiler at a rate of about 3 mm/m to avoid rainwater entering the boiler.
14
L
30
Ø60 Ø80
230
D
A vertical connector can be supplied for vertical
discharge with concentric pipes.
The simple mounting and use of double lip gaskets
at the joints makes this an extremely easy and safe
option.
For flue length up to 1 m long the 50 mmØ restrictor is
required. Longer than this no restrictor is required.
Fig. 12
L = S + D + 165
50* 125
* = between 10 e 60 mm
70
80
S
Fig. 13
Tempra 30
-3 mm/m
70 min.