39
EN
Cod. 3542B230 - Rev. 00 - 02/2022
OMNIA S HYBRID H 3.2
7.7.5 Connection to collective chimneys
fig. 25 - Example of connection to chimneys (
= Air /
= Fumes)
Table 9 - Type
Type
Description
C8X
Single or collective exhaust flue and wall-mounted extraction
B3X
Extraction from the installation site using a concentric pipe (which includes the exhaust) and exhaust in a collective chimney with natural draught.
B
IMPORTANT - THE ROOM MUST HAVE SUITABLE VENTILATION
C93
Exhaust to a vertical terminal and intake from existing chimney.
If you intend to connect the boiler to a chimney or to a single natural draught chimney, the chimney or flue must be specifically designed by profession-
ally qualified technical personnel in compliance with current standards and be suitable for sealed chamber appliances equipped with a fan.
Anti-backflow check valve
The boiler is standard-fitted with a check valve (anti-backflow system), therefore, it can be connected to
collective chimneys under positive pressure only if it operates with G20 gas. Parameter P67 must be set to 1 with this type of installation.
If you are installing a type C(10)3 or C(11)3 boiler, affix the relevant white adhesive rating plate, located in the document envelope supplied with the device, to the
FRONT PANEL SO THAT IS CLEARLY VISIBLE.
Check the tightness of the gas and fumes circuit when the installation has been completed.
IF NOT, THERE IS A RISK OF ASPHYXIATION DUE TO THE LEAKAGE OF COMBUSTION FUMES.
