Tank on Tank
Single Heat Exchanger with Buffer Tank / 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
Pre plumbed DHW tank and buffer tank
The buffer is built into the tank which adds to its attractive aesthetics and system efficiency an improving system flow rate that allows for the heat pump to run for longer reducing the number of times it needs to turn on and off
A tank with coil and buffer is one of the most efficient solutions for DHW and buffer tanks
The benefits include a smaller environmental footprint, a reduction of pipe work and labor
Technical informations
| Capacity (l) | 260L | 290L | 390L | |||
| Dimensions (mm) | ||||||
| A - Diameter | 550 | 580 | 620 | 660 | 620 | 660 |
| B - Height | 1980 | 2010 | 1700 | 1730 | 2150 | 2180 |
| Connections | ||||||
| 1 Cold Water Inlet | 1''F | 1''F | 1''F | |||
| 2 Hot water Outlet | 1''F | 1''F | 1''F | |||
| 3 Secondary Return | ¾''F | ¾''F | ¾''F | |||
| 4 Heat Exchanger Inlet - Heat Pump | 1''F | 1''F | 1''F | |||
| 5 Heat Exchanger Outlet - Heat Pump | 1''F | 1''F | 1''F | |||
| 6 Immersion heater | 1½''F | 1½''F | 1½''F | |||
| 7 Direct Connection | 1''F | 1''F | 1''F | |||
| 8 Temperature Sensor | ½''F | ½''F | ½''F | |||
| 9 Air bleed | ½''F | ½''F | ½''F | |||
| Technical Data | ||||||
| Tank Construction *1 | Stainless steel DUPLEX LDX 2101 (1.4162) | |||||
| Rated DHW storage tank (l) | 200 | 200 | 300 | |||
| Rated Buffer storage tank (l) | 60 | 90 | 90 | |||
| Heat Exchanger Material | Stainless steel tube AISI 316L (1.4404) | |||||
| Heat Pump Heat Exchanger Surface area (m²) | 2,5 | 2,5 | 3 | |||
| Heat Pump Heat Exchanger Volume (l) | 11,4 | 11,4 | 13,6 | |||
| Heat Pump Heat Exchanger Rated Output (kW) *2 | 12 / 70 | 12 / 70 | 14 / 80 | |||
| Electrical Backup (W x 230V AC) - OPTIONAL | 1500 | 2000 | 3000 | |||
| Insulation – Rigid Polyurethane (mm) | 50 | 65 | 50 | 70 | 50 | 70 |
| Outer Casing | Powder Coated Galvanized Steel | |||||
| Max. Working pressure - tank (bar) | 6 | 6 | 6 | |||
| Max. Working pressure - heat exchanger (bar) | 6 | 6 | 6 | |||
| Max. Working temperature - tank (°C) | 80 | 80 | 80 | |||
| Max. Working temperature - heat exchanger (°C) | 95 | 95 | 95 | |||
| ErP Label | C | B | C | B | C | B |
| Standby Losses | 80W | 63W | 90W | 66W | 98W | 76W |
*1 - Other Alloys Available
*2 - Heat Pump: Primary 65-60°C; Secondary 59-15°C / Boiler : Primary 80-65°C; Secondary 60-15°C
