Steel Gas Boilers of the CLEVER Series

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 (exposure temperature 950 °C) and treatment with inhibitory composition, the heat exchanger is protected from aggressive factors, solutions of salts and mineral oils.

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Description

Description

The model range is from 20 to 55 kW.

Operating pressure up to 3 atm.

Improved safety systems against overheating of the heat exchanger, interruption of traction, soot formation, freezing of the boiler

Work in a heating system with forced and natural circulation of the coolant.

Efficient operation with a minimum ratio of the volume of water in the boiler to the weight and area of the heat exchanger.

Continuous smooth power modulation that minimizes energy consumption.

The possibility of connecting: an indirect heating tank, a thermostat with which you can adjust the boiler temperature relative to the indoor temperature, a Lemax monitoring and control device together with the Lemax OpenTherm module for monitoring and controlling comfort in the house (Android and iOS), outdoor temperature sensors, External Fan of the Lemax Comfort series for forced exhaust gas removal, heating and hot water pumps.

It is resistant to voltage drops (180 - 245 V) and gas pressure (6 - 25 mbar).

Low noise level.

Ease of maintenance of the boiler due to the use of an easily removable top panel.

Parameter	CLEVER 20	CLEVER 30	CLEVER 40	CLEVER 55
Maximum heat capacity supply, kW	20	30	40	55
Efficiency coefficiency, no less than, %	90	90	90	90
Maximum service 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	4-40	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	150
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:	9	9	9	9
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

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