Boiler for pellets Defro Delta EkoPell 20 kW with feeder on right side

1. steel body with thermal insulation;
2. cleaning door;
3. furnace-ash pan door;
4. feet for leveling boilers;
5. upper cleaning port;
6. supply connection;
7. return connection;
8. drain connection;
9. chimney;
10. electronic controller display;
11. control module;
12. STB temperature limiter;
13. analog thermometer;
14. pellet burner;
15. fuel feeder;
16. motor-gearbox;
17. fuel tank;
18. fuel tank inspection opening;
19. masking cover of controller sensor bushings;
20. fan;
21. main switch;
22. flue gas sensor cable connector;
23. ½" connection (for mounting temperature sensor for SYR 5067 protection).

APC 3 SLIM Controller

Functions performed by the controller:

• modern ADAPTIVE Control system using a turbine flow meter ensures optimal selection of fan and feeder operating parameters;
• ignition using a heating element;
• automatic boiler ignition and shutdown
• fan control (testing air flow required for proper combustion process) and feeder;
• central heating, hot water, and valve pump control;
• additional device control;
• single mixing valve control;
• possibility of connecting ST-65 GSM module;
• weekly boiler control;
• internet control (remote ignition and shutdown) - option;
• fuel consumption measurement;
• central heating, hot water, valve, and flue gas temperature sensor;
• possibility of connecting a room controller with RS communication or traditional;
• large color graphic display, placed in a console with adjustable tilt angle;
• photoresistor (flame sensor);
• has burner thermal protection;
• possibility of controlling additional mixing valve using DERFO MZ module.