Mikrofill ETHOS 70 - Flue Connection Details

INSTALLATION
16 TECHNICAL DOCUMENTATION
FLUE CONNECTION
During installation, a choice can be made between a ‘room sealed’ or ‘open flued’ system. The standard two
pipe (eccentric) connections can be easily converted using the Mikrofill adaptor.
The flue gas discharge outlet and air intake system should be installed by a competent installer according to
applicable national and local standards and specifications. When using multiple boilers on a single application,
care should be taken to ensure compliance with the Clean Air Act.
FLUE GAS OUTLET AND AIR INLET PIPE
The air inlet and flue gas outlet pipes may be single wall, smooth or flexible, and be made of:
• Aluminium (air inlet only)
• Plastic
• Stainless Steel
Always consider the large resistance when using flexible material, and also consider condensate formation
due to the suction of cold air.
Diameter of Air Inlet
Diameter of Flue Gas Outlet
The connection for the air supply is on top of the boiler.
The air supply pipe should be air tight. This is to prevent the suction of ‘false air’. Horizontal components in the
air supply should be installed sloping in the direction of the supply opening.
FLUE ADAPTOR INSTALLATION
Please ensure the flue adaptor, when used, is fitted in the correct orientation as shown below:
• Type
• Type
• Type
• Type
• Type
• Type
• Type
Open type appliance without draught stabiliser, air supply from the room, flue gas discharge
outlet above the roof.
Room sealed appliance, connected to concentric air supply / flue discharge through the wall.
Room sealed appliance, connected to concentric air supply / flue discharge through the roof.
Room sealed appliances in cascade, connected to a common concentric air supply / flue
discharge at the appliance.
Room sealed appliance, connected to a seperate air supply and flue discharge pipe, opening
into different pressure areas.
Room sealed appliance, sold without related connecting and / or discharge fittings.
Room sealed appliances in cascade, connected to seperate air supplies but common flue
discharge through the roof.
B23:
C13:
C33:
C43:
C53:
C63:
C83:
▲ FIGURE 05. DIAMETERS OF AIR INLET AND FLUE GAS OUTLET CONNECTIONS.
ETHOS 130
100
100
ETHOS 110
100
100
ETHOS 90
100
100
ETHOS 70
80
80
mm
mm