Ferroli OPERA Instructions D'utilisation, D'installation Et D'entretien page 159

OPERA
Connection
Before making the flue connection fill the condensate trap with approx. 0.5 liters of
B
water through the flue connections.
To calculate the maximum length of the fume ducts, refer to the maximum available head indicated in table 5.
Table 5 - Maximum flue pipe length
Maximum flue head
EN
fig. 55- Fume outlet
Model Model
"70" "125"
Ø 80 Ø 100
200 Pa 200 Pa
cod. 3541R960 - Rev. 00 - 09/2019
Model Model
"220" "320"
Ø 160 Ø 200
200 Pa 200 Pa
159