34
BALANCED FL
BALANCED FL
BALANCED FL
BALANCED FL
BALANCED FLUE 9
UE 9
UE 9
UE 9
UE 9
9-3
Burner Air Supply
9-3.1 Combustion Air Supply
Boiler in room.
No combustion air inlet is required.
Boiler in compartment/small room.
Ventilation air supply is required as shown in fig. 9-3a.
OFTEC
INFORMATION SUPPLIED BY OFTEC.
FOR FURTHER INFORMATION
CONSULT THE LOCAL BUILDING
CONTROL.
VENTED FROM OUTSIDE
VENTED FROM ROOM
Fig. 9-3a Ventilation Air Supply for Balanced Flues in Compartments
9-3.2 Burner Air Duct
All Floor Standing Boilers are supplied with an adaptor and flexible air duct fitted for
conventional flue connection.
For balanced flue applications, the conventional flue adaptor has to be removed, the air
duct is then reconnected to the balanced flue.
Internal Wall Mounted Boilers are supplied with the flexible air duct ready to connect to a
balanced flue.
Always inspect the condition of the air duct during routine maintenance and replace if it
is not air sealed.
REMOVE ADAPTOR
Fig. 9-3b Adaptor
FLEXIBLE AIR DUCT
Fig. 9-3c Air Duct - Floor Standing
Fig. 9-3d Air Duct - Wall Mounted
FLEXIBLE AIR DUCT
99999
NOT 190/240 & 240/270