In accordance with European standard EN 10130: 2006, the American standard ASTM A 1011 and Russian GOST 16523-97 and GOST 9045-93 we use stainless steel 2mm thick grade DC01in production of Lemax boilers series Premium. The heat exchanger has a cylindrical shape, which allows the boiler to work in closed systems with the operating pressure of 1 atm maximum (for Premium-7,5 - Premium-10) and of 3 atm maximum (for Premium-12,5 - Premium-60). Due anticorrosive coating enamel (exposure temperature 950 °C) and treatment with inhibitory composition, the heat exchanger is protected from aggressive factors, solutions of salts and mineral oils.
- Extended power range from 7,5 to 60 kW.
- The boiler does not require connection to the electric mains.
- Equipped with original components of gas-burning device and gas valve produced by Italian concern SIT, as well as with POLIDORO injection micro-flame burners.
- Protection against overheating, traction interruption, soot formation, and blowing of the boiler.
- Easy boiler cleaning through the use of a removable top panel.
- Enhanced security protection system (overheating sensor mounted on heat exchanger).
- Maximum efficiency due to:
- increased heat-transfer area;
- changes of baffle construction for a maximum delay of exhaust gases.
- Increase of the primary and secondary air flows.
- DHW domestic hot water.
- LPG operation.
- 3 years warranty.
| Parameter | Premium-7,5 | Premium-10 | Premium-12,5/ Premium-12,5(В) | Premium-16/ Premium-16(В) | Premium-20/ Premium-20(В) | Premium-25/ Premium-25(В) | Premium-30/ Premium-30(В) |
Premium-35/ Premium-35(В)
|
Premium-40/ Premium-40(В)
|
Premium-50
|
Premium-60
|
|---|---|---|---|---|---|---|---|---|---|---|---|
| Type of gas burner unit | GGU 9 | GGU 12 | GGU 15 | GGU 19 | GGU 24 | GGU 30 | GGU 35 | GGU 40 | GGU 45 | GGU 55 | GGU 65 |
| Nominal heat power, kW | 7,5 | 10 | 12,5 | 16 | 20 | 25 | 30 | 35 | 40 | 50 | 60 |
| Energy conversion efficiency, % not less than | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| Heat exchanger volume, L | 16,5 | 16,5 | 24,3 | 24,3 | 42,8 | 40,3 | 40,3 | 62,4 | 62,4 | 66 | 66 |
| Heat takeoff area, m2 | 0,6 | 0,6 | 1 | 1 | 1,6 | 1,7 | 1,7 | 1,9 | 1,9 | 2 | 2 |
| Exit gases temperature °С, not less than | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 | 110 |
| The range of discharge which ensures stable operation of the boiler, Pa | 4-25 | 4-25 | 4-25 | 4-25 | 4-25 | 4-40 | 4-40 | 4-40 | 4-40 | 4-40 | 4-40 |
| Gas nominal pressure, Pa | 1300 | 1300 | 1300 | 1300 | 1300 | 1300 | 1300 | 1300 | 1300 | 1300 | 1300 |
| Hot water supply loop output over 30 °С delta, Lpmin. (at exit temperature ≥ 15 °С) | - | - | 4 | 5 | 6 | 7 | 8 | 9 | 10 | - | - |
| Average gas flow, m3/hr | 0,45 | 0,6 | 0,75 | 0,95 | 1,2 | 1,5 | 1,75 | 2 | 2,25 | 2,75 | 3,25 |
| Maximum water temperature at boiler exit , °С | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 | 90 |
| Flue diameter, mm | 100 | 100 | 130 | 130 | 130 | 130 | 130 | 140 | 140 | 200 | 200 |
| Gas pipe diameter, inch | 1/2’’ | 1/2’’ | 1/2’’ | 1/2’’ | 1/2’’ | 1/2’’ | 3/4’’ | 3/4’’ | 3/4’’ | 3/4’’ | 3/4’’ |
| Connecting pipes diameter, inch | 1 1/2’’ | 1 1/2’’ | 2’’ | 2’’ | 2’’ | 2’’ | 2’’ | 2’’ | 2’’ | 2’’ | 2’’ |
| Dimensions, mm: | |||||||||||
| Height | 747,5 | 747,5 | 744 | 744 | 961 | 961 | 961 | 1016 | 1016 | 1105 | 1105 |
| Width | 330 | 330 | 416 | 416 | 470 | 470 | 470 | 532 | 532 | 585 | 585 |
| Depth | 499 | 499 | 491 | 491 | 556 | 556 | 556 | 608 | 608 | 660 | 660 |
| Mass not more than, kg | 39 | 39 | 53/58 | 53/58 | 75/80 | 80/85 | 80/85 | 92/98 | 92/98 | 125 | 125 |