Combustion Levels In Combination With A Convection Ventilator; Combustion Levels Without A Convection Ventilator; Combustion Modes - barbas Cuatro-7 75-60 User Manual

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
1
2
3
4
5
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
1
2
3
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.
1
2
3
4
5
Cuatro-7 75-60
Thermal output
Minimum
Minimum
Nominal
Nominal
Maximum
Thermal output
Minimum
Nominal
Maximum
Combustion mode
Standby
Firing up
Burning
Refill
Cooling down
Note: With the Barbas Opti-Air system it is not possible to manually control
the amount of combustion air into the appliance.
Ventilator speed
Off
Minimum
50% of maximum speed
Maximum
Maximum
Description
The appliance is off and ready for use.
Start of the appliance with the first load of wood logs. The
appliance heats up.
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.
The appliance has cooled down, a reload with wood logs
is necessary.
The appliance was not reloaded with fuel within 45 mi-
nutes after Refill notice . Cooling downmode is active.
Description
11