Feeder screw
Locker feeder
Upper connection
Primary air pipe
Ignition pipe
Burner screwCombustion fan
Pellets are fed to the
burner head from below
(underfeeding principle)
Safety zone against
fire in the back
Ignition element
BURNER OPERATING PRINCIPLE
1. Actual boiler temperature
2. Immersion heater on/off
3. DHW charge pump on/off
4. Burner control switch on/off/reset
5. Status LED green/red
No light = OFF
Green 1 s on 3 s off = Standby
Green 3 s on 1 s off = Ignition
Green = Operation
Red = Alarm
6. Cut out thermostat
7a. Immersion heater back up/
Cut out thermostat
7b. Immersion heater cut out
thermostat reset
8. Tap water pump Fuse
9. Main fuse
CONTROL PANEL
The picture shows 20 kW burner.
7b