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 «Clever». The heat exchanger has a cylindrical shape, which allows the boiler to work in closed systems with the operating pressure of 2 atm. Due anticorrosive coating enamel «CERTA» (exposure temperature 750 ° C) and treatment with inhibitory composition, the heat exchanger is protected from aggressive factors, solutions of salts and mineral oils.
- Wide model range: 20, 30, 40, and 55 kW.
- Equipped with original components of gas burner units and SIT gas valve, as well as POLIDORO injection microflame burner.
- Used in the heating system with forced and natural coolant circulation.
- Efficient operation with minimal ratio of the boiler water capacity to the heat exchanger’s weight and area.
- Continuous smooth power modulation.
- Possible connection of:
- Indirect heating tanks;
- Thermostats (chronothermostats) to control the boiler’s temperature relating the indoor temperature;
- Remote home controlling systems (Android and IOS);
- Outdoor temperature sensors;
- External fan «Lemax» for forced rejection of exhaust gases;
- DHW and heating system pumps.
- Systems of protection against overheating, draft interruption and freezing.
- Resistant to voltage variations (180 - 245 volt) and gas pressure (6-25 mbar).
- LPG operation.
- Low noise.
- 2 years warranty.
| Parameter | Clever 20 | Clever 30 | Clever 40 | Clever 55 |
|---|---|---|---|---|
| Nominal heat capacity supply, kW | 20 | 30 | 40 | 55 |
| Efficiency coefficiency, no less than, % | 90 | 90 | 90 | 90 |
| Test pressure, MPa | 0,4 | 0,4 | 0,4 | 0,4 |
| Recomended pressure in the heating system, MPa | 0,2 | 0,2 | 0,2 | 0,2 |
| Heat-transfer fluid capacity in the heat exchanger, l | 43 | 41 | 62,5 | 66,5 |
| Vacuum range, to provide safe boiler operating, Pa | 4-25 | 4-40 | 4-40 | 4-40 |
| Average gas flow, m3/hr | 1,25 | 1,75 | 2,25 | 3,1 |
| Outlet water maximum temperature, °С | 90 | 90 | 90 | 90 |
| The diameter of the flue, mm | 130 | 130 | 140 | 200 |
| Outlet combustion products temperature, not less than, °C | 110 | 110 | 110 | 110 |
| Natural gas supply nominal pressure, Pa | 1300 | 1300 | 1300 | 1300 |
| Power supply voltage, volt | 220 | 220 | 220 | 220 |
| Network frequency, Hz | 50 | 50 | 50 | 50 |
| Electric power, W: | 15 | 15 | 15 | 15 |
| Mass net/gross, kg | 80/85 | 85/90 | 110/116 | 118/123 |
| Dimensions, mm: | ||||
| Height | 961 | 961 | 1016 | 1102 |
| Width | 470 | 470 | 532 | 581 |
| Depth | 556 | 556 | 608 | 656 |