barbas Cuatro-7 75-60, Installation And Maintenance Manual

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3.6.3 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
3.6.4 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
3.6.5 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 15