Eng. Edition 1.0 2004, Nov.
20
First start/adjustment during operation
The burner is not factory adjusted. It has to be adjusted at the first start. We
suggest that a preliminary adjustment is carried out at the first start, which make
the burner function satisfactory. After operation in normal mode for one or two
weeks, the final adjustment can be carried out.
When carrying out a preliminary adjustment and control of the function, the
combustion quality can be evaluated by visual inspection of the flame size and
colour. A few minutes after start, the flame should be yellow/white. A dark
yellow flame means that the burner gets too much fuel or an insufficient volume
of air. A white flame means too much air or an insufficient amount of fuel. It is
quite normal if the colour of the flame varies a bit between white and yellow.
Grey or black smoke from the chimney is also an indication of insufficient air.
White smoke mainly consists of water vapour and is normal at low outside
temperatures. If the boiler was earlier wood fired, the smoke may be dark and
has a strong smell caused by tar that is burnt away from the walls in the boiler
and the chimney. This may go on for about a week.
Adjustment of air volume and fuel quantity
1. Fill the feed screw with pellets before connecting it to the burner. See
description in the Operation and Maintenance Manual.
2. Set the start portion (quantity of pellets at ignition) with the knob on the
control box. Turn clockwise to increase the quantity. Approx. 2-3 dl (150-200 g)
is a normal portion. Always check the start portion when changing setting or
fuel type. Too large start portion may temporarily cause grey/black, bad
smelling smoke 5-10 minutes after start. If the start portion is too small, it will
not be possible to ignite the burner at all, or two or three attempts are needed.
The start portion may also burn out before the burner reaches the operational
mode.
If the ignition fails, do not open the fire place door until the
combustion chamber is totally ventilated! Wait at least 10 minutes
after the 3rd starting attempt and be careful .
Be very careful when opening the fire place door or inspection eye
during operation. Keep your face at a safe distance and be
prepared to close the door quickly.