Cleaning and maintenance Maintenance openings in the boiler
1 Actuator for secondary air
2 Drive chain of the dosing screw
3 Position sensor for stoker screw
4 Drive chain of the stoker screw
5 Ignition
6 Retaining tube of the lambda probe
7 Heat exchanger cleaner maintenance cover
8 Safety switch for the maintenance cover
9 De-ashing drive
10 Flue gas temperature sensor in heat exchanger
11 Water pressure sensor
12 Draught fan
13 Flue gas temperature sensor on flue gas
connector