Steel Gas Boilers of CLEVER L Series 40-90kW

The CLEVER L series boiler with an open combustion chamber can operate in heating systems with forced circulation and operating pressure up to 6 atm.

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Description

Description

The model range is from 40 to 90 kW

The "high-speed water-tube" heat exchanger (water circulates inside the pipe) is made of 3.2 mm thick high-quality steel, complying with the European standard EN 10130:2006, the American standard ASTM A 1011 and the Russian standard GOST 16523-97 and GOST 9045-93

Equipped with original gas burner components and automatic safety controls as well as with а micro-flame injector burner

Thyristor control with high resource potential

Corrosion-proof enamel coating (operating temperature up to 950°C) and treatment with an inhibitive compound protect the heat exchanger against aggressive factors and saline solutions

Smooth power modulation in a ratio of 1:3, ensuring minimal load on heating system components and minimizing gas consumption

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

Low power consumption

Improved protection system against freezing, heat exchanger overheating, reverse draft in the flue and excess heat transfer medium pressure in the heating circuit

Resistance to changes of voltage (180-245 V) and gas pressure (6-25 Mbar)

Connectivity options:

- indirect heating tank

- outdoor temperature sensor

- boiler circulation pump and/or indirect heating tank loading

- thermostat for high-precision indoor temperature regulation

- systems of remote control and comprehensive monitoring of heating system components using the Rs485 protocol

Simple boiler maintenance due to easily removable panels

Parameter	Clever L40 (KVA-0.04H)	Clever L50 (KVA-0.05H)	Clever L80 (KVA-0.08H)	Clever L90 (KVA-0.09H)
Rated heat output in 80/60 heating mode,kW	Rated heat output in 80/60 heating mode,kW 40	Rated heat output in 80/60 heating mode,kW 50	Rated heat output in 80/60 heating mode,kW 80	Rated heat output in 80/60 heating mode,kW 90
Minimum heat output in 80/60 heating mode	Minimum heat output in 80/60 heating mode,kW 13	Minimum heat output in 80/60 heating mode,kW 17	Minimum heat output in 80/60 heating mode,kW 27	Minimum heat output in 80/60 heating mode,kW 30
Efficiency, up to,%	Efficiency, up to,% 92	Efficiency, up to,% 92	Efficiency, up to,% 92	Efficiency, up to,% 92
Rated natural gas flow,m3/h	Efficiency, up to,m3/h 4,6	Efficiency, up to,m3/h 5,8	Efficiency, up to,m3/h 9,2	Efficiency, up to,m3/h 9,8
Gas type,-//-	Gas type,-//- natural gas GOST 5542-2014
Rated gas pressure,Pa	Rated gas pressure,Pa 1700-2500
Maximum operating heat transfer medium pressure at the boiler inlet, max.	Maximum operating heat transfer medium pressure at the boiler inlet, max.,MPa 0,6
Minimum operating heat transfer medium pressure	Minimum operating heat transfer medium pressure,MPa 0,15
Nominal flow rate of heat transfer medium (water) through the heat exchanger, (min.)*	Nominal flow rate of heat transfer medium (water) through the heat exchanger, (min.)*,l/min 33	Nominal flow rate of heat transfer medium (water) through the heat exchanger, (min.)*,l/min 37	Nominal flow rate of heat transfer medium (water) through the heat exchanger, (min.)*,l/min 60	Nominal flow rate of heat transfer medium (water) through the heat exchanger, (min.)*,l/min 67
Flow resistance	Flow resistance,MPa 0,020		Flow resistance,MPa 0,025
Fuel-air ratio in exhaust gases	Fuel-air ratio in exhaust gases,– 1,5-1,8
Flue diameter	Flue diameter,mm; 200
Temperature of exhaust gases at minimum heat output, min.	Temperature of exhaust gases at minimum heat output, min.,°С; 80
Exhaust gas temperature at maximum heat output	Exhaust gas temperature at maximum heat output,°С; 165
Boiler rarefaction	Boiler rarefaction,Pa; 5-12
CO content in combustion products, max.	CO content in combustion products, max.,mg/m3; 100
NOx content in combustion products, max.	NOx content in combustion products, max.,mg/m3; 200
Mass flow of combustion products at rated heat output	Mass flow of combustion products at rated heat output,kg/s 0,023	Mass flow of combustion products at rated heat output,kg/s 0,027	Mass flow of combustion products at rated heat output,kg/s 0,045	Mass flow of combustion products at rated heat output,kg/s 0,05
Mass flow of combustion products at minimum heat output	Mass flow of combustion products at minimum heat output,kg/s 0,011	Mass flow of combustion products at minimum heat output,kg/s 0,014	Mass flow of combustion products at minimum heat output,kg/s 0,02	Mass flow of combustion products at minimum heat output,kg/s 0,022
Water volume in heat exchanger	Water volume in heat exchanger,I 10		Water volume in heat exchanger,I 14
Heat transfer area	Heat transfer area,m2 5	Heat transfer area,m2 6	Heat transfer area,m2 9	Heat transfer area,m2 10
Combustion chamber volume	Combustion chamber volume,m3 0,07		Combustion chamber volume,m3 0,12
Maximum output water temperature taking into account control properties:	Maximum output water temperature taking into account control properties:,°С 100
Temperature controller operating range	Temperature controller operating range,°С 50-95
Connection dimensions along the water circuit	Connection dimensions along the water circuit,– G-2''		Connection dimensions along the water circuit,– DN50 flange connection
Gas connection dimensions	Gas connection dimensions,inch G-3/4''		Gas connection dimensions,inch G-11/4''
Exhaust gas pipe connection dimensions	Exhaust gas pipe connection dimensions,mm 198
Power supply network parameters	Power supply network parameters,V/Hz 230/50
Power consumption (without optional equipment, when operating at nominal mode)	Power consumption (without optional equipment, when operating at nominal mode),W 34		Power consumption (without optional equipment, when operating at nominal mode),W 42
Service life	Service life,years 10
Dimensions:	Dimensions:,mm see Fig. 2,1/ 2,2
Weight: - net weight	Weight: - net weight,kg 77	Weight: - net weight,kg 80	Weight: - net weight,kg 135	Weight: - net weight,kg 140
- gross weight	- gross weight,kg 87	- gross weight,kg 90	- gross weight,kg 155	- gross weight,kg 160

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