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Boiler BL-DW-350L

 

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CYLINDERS (heat sinks)

The cylinder role in a system is important. It is used to store hot water produced by solar panels or other energy sources (boiler, electrical resistance) that is converted to heat.

All cylinders “BL-S”, “BL-SW”, “BL-DW”, and “BL-ER” bear the CE marking that certifies and guarantees their safe use.

The construction of the cylinders is composed of pure deoxidized copper foil bonded with robotic technology.

For internal insulation ecological polyurethane insulation thermal conductivity k = 0,023 w / mk, density p = 40kg / m³ are used, and resistance to fire class: B3, which ensures heat retention even at very low temperatures.

The cylinder casing is made of stainless steel or pre-painted galvanised steel to protect the insulation and longevity of the internal tank of hot water.

Monophasic electrical resistance (elements) 3kw is used on the cylinders. In case of insufficient sunshine it is possible to use more than one electrical resistance (elements).

It is possible to place coil on the cylinders for the circulation of thermal fluid from the boiler of the central heating or solar system. Where necessary a second coil is used on the same cylinder.

During the construction of the cylinder, hydraulic pressure control is made on the 10 atmospheres (bar).

All types of cylinders “BL-S”, “BL-SW”, “BL-DW”, and “BL-ER” bear a warranty.

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Cylinder Technical Characteristics

boiler-categor

  • Ability to save 350L water
  • Construction of pure deoxidized copper foil (Cu-DHP) thickness 2,0[+0,1]mm
  • Cylinder cup thickness 2,0[±0,1]mm of pure deoxidized copper (Cu-DHP)
  • Jacket thickness 0,9[±0,1](mm) of pure deoxidized copper (Cu-DHP)
  • Stainless steel housing or pre-coated galvanized steel
  • Internal ecological polyurethane insulation thermal conductivity  λ=0,023W/mK , density p = 40kg/m3, and resistance to fire class: B3
  • Electrical resistance (element) 3kW
  • Coil connection to central heating

 

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350L Boilers-Double wall (High Pressure)

Type/Dimension
DW(mm)
E1(mm)
E2(mm)
D1(mm)
D2(mm)
Cylinder Thickness (mm)
Cylinder Cup Thickness (mm)
Jacket Thickness (mm)
BL-DW-300L
1000
1500
1800
480
580
2,0[±0,1]
2,0[±0,1]
0,9[+0,1]
BL-DW-350L
1250
1750
2050
480
580
2,0[±0,1]
2,0[±0,1]
0,9[+0,1]
BL-DW-400L
1500
2000
2300
480
580
2,0[±0,1]
2,0[±0,1]
0,9[+0,1]

 

9
Piping
Description
1
OUT to Collector Panel
2
IN Cold Water
3
OUT from Coil
4
IN Return
5
IN to Coil
6
IN to Jacket
7
Ventilation Jacket
8
OUT Hot Water
9
IN from Collector Panel
10
Thermostat Pocket
11
Pocket

 

Type/Pipe
1(mm)
2(mm)
3(mm)
4(mm)
5(mm)
6(mm)
7(mm)
8(mm)
9(mm)
BL-DW-300L
Ø22
Ø28
Ø22 or Ø28
Ø22
Ø22 or Ø28
Ø22
Ø22
Ø28
Ø22
BL-DW-350L
Ø22
Ø28
Ø22 or Ø28
Ø22
Ø22 or Ø28
Ø22
Ø22
Ø28
Ø22
BL-DW-400L
Ø22
Ø28
Ø22 or Ø28
Ø22
Ø22 or Ø28
Ø22
Ø22
Ø28 Ø22

 

Type/Pipe
10(mm)
11(mm)
Heating Element
Fuse / MCB
BL-DW-300L
Ø22
Ø22
3kW 240V/AC
20A
BL-DW-350L
Ø22
Ø22
3kW 240V/AC
20A
BL-DW-400L
Ø22
Ø22
3kW 240V/AC
20A

 

PART

DESCRIPTION

TECHNICAL SPECIFICATIONS

Casing

Pre-coated Galvanized steel / stainless steel

QCD-FIN-F14/V-5

Cylinder

Copper

CU-DHP (CW024A) / EN1652

Cylinder Cup

Copper

CU-DHP (CW024A) / EN1652

Insulation

Polyurethane (λ=0,023W/mK , ρ=40kg/m³, reaction to fire: class B3)

DIN 52612

Heating Element

BS699 / BS1566 / BS3198 /BS6141

Element Protection Cup

Galvanized sheet metal

QCD-FIN-F14/V-5

Weldments

MIG

L-CUP7 DIN EN CP202

PIPING

MATERIAL

TECHNICAL SPECIFICATIONS

CONNECTION

TECHNICAL SPECIFICATIONS

1

Copper

CU-DHP (CW024A) / EN1652 /EN1057

2

Copper

CU-DHP (CW024A) / EN1652 /EN1057

Check Valve & Expansion Tank

25Bar (-10÷90C)97/23/EC

3

Copper

CU-DHP (CW024A) / EN1652 /EN1057

4

Copper

CU-DHP (CW024A) / EN1652 /EN1057

5

Copper

CU-DHP (CW024A) / EN1652 /EN1057

6

Copper

CU-DHP (CW024A) / EN1652 /EN1057

7

Copper

CU-DHP (CW024A) / EN1652 /EN1057

Expansion Tank &
Ventilation Valve
97/23/EC

8

Copper

CU-DHP (CW024A) / EN1652 /EN1057

 Vacuum Valve

97/23/EC

9

Copper

CU-DHP (CW024A) / EN1652 /EN1057

10

Copper

CU-DHP (CW024A) / EN1652 /EN1057

11

Copper

CU-DHP (CW024A) / EN1652 /EN1057

 

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