FORCE W
Any horizontal sections of the fume exhaust must be kept sloping slightly towards the boiler, to prevent possible con-
densate from flowing back towards the outside and causing dripping.
Before proceeding with installation, check with table 5 that the maximum permissible length is not exceeded, bearing in
mind that every coaxial bend gives rise to the reduction indicated in the table. For example, a Ø 100/150 duct comprising
a 90° bend + 1 horizontal m. has a total equivalent length of 2 m.
Table 5- Max. length coaxial ducts
Max. permissible length
Reduction factor 90° bend
Reduction factor 45° bend
2.7 Condensate drain connection
IMPORTANT
The boiler has a trap to drain condensate. Proceed as follows for assembly.
1. Secure the trap.
2. Before connecting the hose to the discharge system, fill the trap with water.
3. Connect the hose from the trap to the condensate drain system.
Drains connected to the drainage system must be resistant to acidic condensate.
If the condensate drain is not connected to the waste water drainage system, a neutralizer must be installed.
ATTENTION: THE UNIT MUST NEVER BE OPERATED WITH THE TRAP EMP-
B
TY!
OTHERWISE THERE IS DANGER OF SUFFOCATION DUE TO THE EMISSION
OF COMBUSTION FUMES.
THE CONDENSATE DRAIN MUST BE CONNECTED TO THE DRAINAGE SYS-
TEM IN SUCH A WAY THAT THE LIQUID CONTAINED CANNOT FREEZE.
EN
Coaxial 100/150
10 m
1 m
0.5 m
0,5lt
fig. 63- Condensate drain connection
cod. 3541V232 - Rev 00 - 08/2021
249