Dual Coil
Dual Heat Exchangers / Vertical Floor Standing
- Made from high grade AISI 444 stainless steel, extremely resistant to pitting corrosion
- All welds are butt welded
- Made by high quality welding process TIG (GTAW), eliminating the possibility of crevice corrosion
- The complete tank is pickled and passivated both inside and outsider
- No sacrificial anodes required
- Thick insulation polyurethane foam layer - λ = 0,022 W/mK
In-house manufactured rigid tube (for the heat exchangers)
Guarantee of quality, performance and longevity
Indirect tanks are designed mainly for alternative energies (boiler, solar, heat recovery, etc.)
Technical informations
| Capacity (l) | 150L | 200L | 300L | 400L | 500L | |||||
| Dimensions (mm) | ||||||||||
| A - Diameter | 550 | 580 | 550 | 580 | 620 | 660 | 710 | 760 | 710 | 760 |
| B - Height | 1120 | 1145 | 1420 | 1475 | 1570 | 1700 | 1560 | 1580 | 1910 | 1940 |
| Connections | ||||||||||
| 1 Cold Water Inlet | ¾''F | ¾''F | ¾''F | 1''F | 1''F | |||||
| 2 Hot Water Outlet | ¾''F | ¾''F | ¾''F | 1''F | 1''F | |||||
| 3 Secondary Return | ¾''F | ¾''F | ¾''F | ¾''F | ¾''F | |||||
| 4 Solar Heat Exchanger Inlet | ¾''F | ¾''F | ¾''F | ¾''F | ¾''F | |||||
| 5 Solar Heat Exchanger Outlet | ¾''F | ¾''F | ¾''F | ¾''F | ¾''F | |||||
| 6 Solar Sensor | Ø7 mm | Ø7 mm | Ø7 mm | Ø7 mm | Ø7 mm | |||||
| 7 Boiler Heat Exchanger Inlet | ¾''F | ¾''F | ¾''F | 1''F | 1''F | |||||
| 8 Boiler Heat Exchanger Outlet | ¾''F | ¾''F | ¾''F | 1''F | 1''F | |||||
| 9 Temperature Sensor | ½''F | ½''F | ½''F | ½''F | ½''F | |||||
| 10 Immersion heater | 1½''F | 1½''F | 1½''F | 1½''F | 1½''F | |||||
| Technical Data | ||||||||||
| Tank Construction *1 | Stainless Steel 444 (1.4521) | |||||||||
| Heat Exchanger Material | Stainless steel tube AISI 316L (1.4404) | |||||||||
| Solar Heat Exchanger Surface Area (m²) | 0,67 | 0,77 | 1,32 | 1,73 | 2,13 | |||||
| Solar Heat Exchanger Volume (l) | 3,1 | 3,5 | 6,0 | 7,9 | 9,8 | |||||
| Solar Heat Exchanger Rated Output (kW) *2 | 21 | 23 | 36 | 52 | 60 | |||||
| Boiler Heat Exchanger Surface Area (m²) | 0,55 | 0,67 | 0,83 | 1,0 | 1,4 | |||||
| Boiler Heat Exchanger Volume (l) | 2,5 | 3,1 | 3,8 | 5,9 | 8,2 | |||||
| Boiler Heat Exchanger Rated Output (kW) *2 | 19 | 21 | 28 | 29 | 43 | |||||
| Electrical Backup (W x 230V AC) - OPTIONAL | 1500 | 1500 | 2000 | 3000 | 3000 | |||||
| Insulation – Rigid Polyurethane (mm) | 50 | 65 | 50 | 65 | 50 | 70 | 50 | 75 | 50 | 75 |
| Outer Casing | Powder Coated Galvanized Steel | |||||||||
| Max. Working Pressure – Tank (bar) | 8 | 8 | 8 | 8 | 8 | |||||
| Max. Working Temperature - Tank (°C) | 85 | 85 | 85 | 85 | 85 | |||||
| Max. Working Pressure – Heat Exchanger (bar) | 8 | 8 | 8 | 8 | 8 | |||||
| Max. Working Temperature – Heat Exchanger (°C) | 95 | 95 | 95 | 95 | 95 | |||||
| ErP Label | C | B | C | B | C | B | C | B | C | B |
| Standby Losses | 63W | 48W | 77W | 56W | 94W | 68W | 102W | 73W | 111W | 82W |
*1 - Other Alloys Available
*2 - Primary 80-65°C; Secondary 60-15°C
