4.2.3
Combustion levels in combination with a convection ventilator
The Opti-Air system in combination with a convection ventilator has 5 combustion levels
to choose from. Each combustion level is a combination of pre-defined thermal output
and pre-defined ventilator speed.
Combustion level
Thermal output
Ventilator speed
1
Minimum
Off
2
Minimum
Minimum
3
Nominal
50% of maximum speed
4
Nominal
Maximum
5
Maximum
Maximum
4.2.4
Combustion levels without a convection ventilator
The Opti-Air system without a convection ventilator has 3 combustion levels to choose
from. Each combustion level is a pre-defined thermal output.
Combustion level
Thermal output
1
Minimum
2
Nominal
3
Maximum
4.2.5
Combustion modes
During operation at a chosen combustion level the combustion process goes through 5
different combustion modes, each with its own pre-programmed combustion
characteristics. During the combustion process one of these combustion modes is active
dependent on the temperature in the combustion chamber.
Combustion mode
Description
1
Standby
The appliance is off and ready for use.
2
Firing up
Start of the appliance with the first load of wood logs. The
appliance heats up.
3
Burning
The appliance is at operating temperature. The actual
temperature can differ from the temperature setpoint, but
the Opti-Air system tries to control the temperature toward
the setpoint by changing the position of the combustion air
valves.
4
Refill
The appliance has cooled down, a reload with wood logs
is necessary.
5
Cooling down
The appliance was not reloaded with fuel within 45 mi-
nutes after Refill notice . Cooling downmode is active.
Note:
With the Barbas Opti-Air system it is not possible to manually control
the amount of combustion air into the appliance.
Description
Cuatro-7 75-60
11