30
clean heat technology
BALANCED FL
BALANCED FL
BALANCED FL
BALANCED FL
BALANCED FLUE 7
UE 7
UE 7
UE 7
UE 7
7-3
Burner Air Supply
7-3.1 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. 7-3a.
OFTEC
INFORMATION SUPPLIED BY OFTEC.
FOR FURTHER INFORMATION
CONSULT THE LOCAL BUILDING
CONTROL.
VENTED FROM OUTSIDE
VENTED FROM ROOM
Fig. 7-3a Ventilation Air Supply for Balanced Flues in Compartments
7-3.2 Burner Air Duct
All condensing Boilers are supplied with a flexible air duct fitted from the condenser unit to
the burner air intake.
Always inspect the condition of the air duct during routine maintenance and replace if it is
split or not air sealed.
FLEXIBLE AIR DUCT
Fig. 7-3b Air Duct - Internal Floor Standing
Fig. 7-3c Air Duct - Wall Mounted
FLEXIBLE AIR DUCT
BFIC 12/24 SHOWN
77777