Characteristic
– Class 5 according to PN-EN 303-5:2012
– Ecodesign
– High efficiency
– Automatic work
– Fast and easy operation
– Economical fuel combustion
– Smokeless and ecological combustion
– Ability to control the boiler’s operation via Internet (option)
– Possibility to install the fuel tank on the left or right side of flues
ELZA
The Elza model boilers with retort burner are intended for water central heating installations with both gravitational and forced water circulation. The installation must be secured according to currently valid and detailed national provisions. Steel Elza model boilers with automatic fuel supply system are intended for work in central heating installations and domestic hot water preparation installations in housing development buildings, i.e. single family houses, commercial pavilions, garages, and utility buildings. Boilers constitute a steel structure welded from certified 6 mm thick boiler sheets that ensure a long-term use. The controller handles CH and DHW pumps, as well as auxiliary pump. There is a possibility to connect room regulator, SafeIT (control via Internet) module, and Aligator (valve actuator control) module.
| L.p | Specification | J.m | Information | ||
| 1. | Boiler type | Elza 8kW | Elza 11kW | ||
| 2. | Nominal thermal power | kW | 8 | 11 | |
| 3. | Range of power for coal | kW | 2,4-8 | 3,3-11 | |
| 4. | Boiler class due to PN-EN 303-5:2012 | 5 | |||
| 5. | Size of heated surface | m² | up to 80 | up to 110 | |
| 6. | Water capacity of the boiler | l | 23 | 28 | |
| 7. | Combustion upon nominal power | h | 65/240 | 48/180 | |
| 8. | Efficiency | % | 90,3 | 89,2 | |
| 9. | Maximum working temperature min./max. | ºC | 55/80 | ||
| 10. | Minimum working temperature (return) | ºC | 50 | ||
| 11. | Minimum working temperature | ºC | 10 | ||
| 12. | Exhaust fumes temperature Nominal power/min | ºC | 94/67 | 140/79 | |
| 13. | Flow resistance | at ΔT=10K | mbar | b.d | |
| at ΔT=20K | mbar | b.d | |||
| 14. | Maximum permissible working pressure | bar | 1,5 | ||
| 15. | Mass of the boiler (±5%) | kg | 177 | 197 | |
| 16. | Exhaust mass flow | g/s | 4,5-1,7 | 7/2,8 | |
| 17. | Required capacity of the heat accumulator Qmin>0,3QN | l | 160 | 220 | |
| 18. | Test pressure | bar | 3 | ||
| 19. | Required exhaust flow | mbar | 0,2 | 0,22 | |
| 20. | Cross-section of the chimney hole – minimum | cm² | 110 | 135 | |
| 21. | Minimum chimney height | m | 5 | 6 | |
| 22. | Diameter of the flue | mm | Ø127 | ||
| 23. | Fuel | Black coal sort of pea, granulation 5-25mm | |||
| 24. | Diameter of supply and return pipe | G | 1″ | ||
| 25. | Power supply | V/Hz/A | 230 / 50 / 0,5 ÷ 3,15 | ||
| 26. | Heating surface of the boiler | m² | 0,8 | 1 | |
| 27. | Power consumption | Nominal power | W | 122 | |
| Minimum power | W | 80 | |||
| 28. | Power consumption in standby mode | W | 3 | ||
| 29. | Emission of noise | dB | <60 | ||
| 30. | Dimension | A | mm | 543 | |
| B | mm | 570 | |||
| C | mm | 281 | |||
| D | mm | 853 | 973 | ||
| E | mm | 898 | 1018 | ||
| F | mm | 390 | |||
| G | mm | 970 | |||
| H | mm | 953 | |||
| I | mm | 1120 | |||
| J | mm | 127 | |||
