ARITERM SWEDEN AB
Installation, Operation and Maintenance - 2007.10.26- 8/12
Before you begin heating, the heating system must be fi lled with water.
To fi ll the system, do as follows:
1. Open all shut-off valves, including the shunt valve.
Th
e pump must be switched off .
2. Fill the boiler and the radiator system with water.
Bleed the system at the radiators.
3. Once the system is fi lled completely, the circulation pump can be started and
heating can begin.
4. When the boiler water has reached its pre-set operating temperature, the pump
should be stopped and the system bled at the radiators once again. Th
is should be
repeated several times.
Remember that much air is enclosed in tap water. Th
e enclosed air volume may reach
as much as 10%, which explains why bleeding takes time – especially where there are
large water volumes. A closed system shall be fi lled until the pressure gauge indicates
the correct system pressure, i.e. the distance from the pressure gauge to the highest ra-
diator in meter times 0,1 which gives the system pressure in bar. Adjust the red needle
of the pressure gauge to the same value as the big needle.
FILLING OF WATER
MAINTENANCE, CARE, SWEEPING
Boiler cleaning
Burning solid fuels, even if operation is automated, normally calls for a little more care
and maintenance than oil heating. For Biomatic 20 maintenance has been minimized
as the result of well planned design and a big ash box holding 50 litres. Ash is removed
when necessary. Th
e convection parts of the boiler are to be cleaned when the fl ue gas
temperature has risen by 20-30˚C above the temperature of a newly swept boiler.
ATTENTION! Pay special attention to the pellets quality when you receive a new delivery or when
you change supplier.
ATTENTION! Show a great care when emptying the ash as it might be glowing hot. Ash must be
kept in a
fi
reproof container.
Th
e following measures and checks shold be carried out when the boiler is cleaned:
• Switch off the burner an hour before service.
• Lift the soot hatch at the top of the boiler and brush clean the fl ues.
• Remove the fi xing bolts from the burner and loosen the hose and electric connec
tions.
• Pull out the burner and brush clean the walls of the combustion chamber.
• Empty the ash.
ATTENTION! Disconnect the power to the boiler before removing the protective housing
ATTENTION! Show great care when emptying the ash as it can be glowing hot.
