1101
Illustrations may differ from actual product
Subject to printing/proofreading errors
6
Installation
Installation must take place according to existing regula-
tions. The installer must familiarise himself with the existing
rules.
Boiler
The Viking Bio can be installed on most domestic boilers. The boiler's
power range must match the burner's power so that the flue gases are
cooled sufficiently.
The boiler's flues may not be so narrow that they can easily be clogged by
ash. Pellet firing produces a fair amount of ash which needs space. It must
also be easy to remove it from the boiler.
The boiler's hatches and dampers must be airtight so that no false air can
get in.
For simple maintenance, it should be possible to open the hatch without
the burner needing to be removed.
Wood-fired boilers have a large area for ash and are usually easier to
sweep. An old wood-fired boiler is not usually a good choice as the heat-
absorbing surfaces are too small to cool the flue gases sufficiently.
365 mm
150 mm
50 mm
50 mm
In a double boiler, the burner should be installed on the oil hatch. If the pel-
let burner is located on the oil side, it is possible to fire with wood.
The flame may not touch the walls of the combustion chamber. The mini-
mum dimensions of the combustion chamber are 230 x 230 x 365 mm (h
x w x d).
If the depth dimension cannot be achieved, a spacer is available as an
accessory.
The distance to the base of the combustion chamber should be high
enough for there to be space for the quantity of ash formed during a
weeks' firing in winter. The highest quantity of ash is to be found at the
rear of the combustion chamber.
Chimney
A chimney for oil firing is usually also appropriate for pellet firing. A chim-
ney for wood firing may have too large a flue. These are the requirements:
Min.:
height 2 m, Ø100 mm or equivalent.
Max.:
draught <15 Pa.
The draught is measured with a warm chimney and in normal operation.
Draught damper
The chimney must be fitted with a draught damper that is
appropriate for the chimney.
The combustion is affected by the draught. Therefore, stable draught con-
ditions are the objective.
Supply air to boiler room
There must be a supply air valve to the boiler room. The valve's free sur-
face must correspond to the cross-sectional area of the chimney.
Installation of burner
The burner hatch must be well insulated from the burner.
A. Unscrew the screws holding the burner cover in place and remove the
cover.
Open the quick attachments and release the burner from the outer
burner pipe.
Mark out where the burner will be located and make holes as shown in
the drawing.
B. Fit the burner flange and flange gasket on the burner hatch and screw it
in place with four M6 screws.
The burner must be installed horizontally or so that it inclines down-
wards by a few degrees in the combustion chamber.
Burner hatch
Flange gasket
(asymmetrical)
Burner flange
C. Fit the burner on the burner flange and lock the quick attachments.
Check that the burner is tight against the silicone gasket on the burner
flange.
