Boiler for pellets Defro Delta EkoPell 25 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 access;
6. supply nozzle;
7. return nozzle;
8. drain nozzle;
9. flue;
10. electronic controller display;
11. control module;
12. STB temperature limiter;
13. analog thermometer;
14. pellet burner;
15. fuel feeder;
16. geared motor;
17. fuel tank;
18. fuel tank inspection hole;
19. cover plate of controller sensor mounting sleeves;
20. fan;
21. main switch;
22. exhaust gas sensor cable grommet;
23. ½" nozzle (for mounting the temperature sensor of the SYR 5067 protection).

APC 3 SLIM Controller

Functions implemented by the controller:

• modern ADAPTIVE Control 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 the air flow necessary for proper combustion) and feeder;
• control of heating circuit pumps, DHW pumps, valve pump;
• control of additional device;
• control of one mixing valve;
• possibility of connecting the ST-65 GSM module;
• weekly boiler control;
• internet control (remote ignition and shutdown)- optional;
• fuel consumption measurement;
• heating circuit, DHW, valve, exhaust gas temperature sensor;
• possibility of connecting a room controller with RS or traditional communication;
• large color graphic display placed in a console with adjustable tilt angle;
• photoresistor (flame sensor);
• has burner thermal protection;
• possibility of controlling an additional mixing valve using the DERFO MZ module.