OSO OPTIMA COIL OC
OPTIMA COIL
The ultimate tank-in-tank unit for heat pumps up to 15kW
OPTIMA series are tank-in-tank units with unique and patented solutions to increase Seasonal Performance Factor (SPF) for heat pumps vs. traditional tank-in-tank units. The buffer tank and domestic hot water tank (both made in stainless steel) are integrated in a single unit, increasing efficiency, reducing footprint as well as installation time. The smooth piped, scale-resistant heating coil is another advantage. OPTIMA boasts class-leading insulation capabilities, while maintaining a higher temperature than others (75 °C) in the DHW tank for unbeatable performance and more hot water in a smaller unit.
OPTIMA COIL — OC 300 / 360 is ideal for heat pumps without three way valve for DHW priority up to 12 / 15 kW, and for heating demands in households up to 300 / 400 m². The smooth piped, scale-resistant heating coil in the buffer tank increases available surface area for heat transfer dramatically vs. traditional tank-in-tank units, and increases SPF. OPTIMA COIL has full electric back-up for the heating system for ultimate peace of mind, as well as ultra-grade INCOTEC immersion heater as booster for the domestic hot water unit. Adjustable hot water draw-off temperature (prevents scalding) to the taps is ensured by the factory fitted UX mixing valve with maximum water flow rate of 0,7 L/s.
WHY CHOOSE OPTIMA COIL?
• Reduce heat loss by 300 kWh* / year with NANOPUR*
• Custom-designed for heat pumps without DHW priority up to 15 kW
• Higher heat transfer for DHW and increased heat pump performance
• DHW and buffer tank with full electric back-up in one footprint
• 5 year warranty on the stainless steel pressure tank
* Compared to 300 L cylinder with EPS insulation
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| Specifications | Unit | OC 300 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 0,8 m² | OC 360 - 3 + 15 kW / 1 / 3 + 230 V LT + HX 0,8 m² |
| Compare | |||
| Identification | |||
| Product no. | NRF | 8000266 | 8000267 |
| Product series | OPTIMA COIL | OPTIMA COIL | |
| Product name | OC 300 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 0,8 m² | OC 360 - 3 + 15 kW / 1 / 3 + 230 V LT + HX 0,8 m² | |
| Usage | N/A | N/A | |
| Placement | Gulv | Gulv | |
| Dimensions | |||
| Diameter — ⌀ | mm | 580 | 580 |
| Height — H | mm | 1760 | 1990 |
| Weight | kg | 70 | 85 |
| Packaging | mm | 595 × 595 × 1765 | 595 × 595 × 2000 |
| Freight volume | dm3 | 651 | 744 |
| Technical / ErP information | |||
| Capacity | Persons | 5.0 | 7.0 |
| Capacity 40°C | L | N/A | N/A |
| Volume | L | 163 | 206 |
| Heat-up time ΔT 65°C | Hours | N/A | N/A |
| Thermostat set point | °C | 75 | 75 |
| Heat loss EN 12897 | Watt | 52 | 59 |
| AEC (energy consumption) | kW /year | N/A | N/A |
| Energy efficiency | % | N/A | N/A |
| Tapping profile | 3XS–XXL | N/A | N/A |
| Energy rating | A–G | B/B | B/C |
| Price | |||
| Suggested retail price ex. VAT | EUR | 1750 | 2000 |
| Suggested retail price inc. VAT | EUR | N/A | N/A |
MORE HOT WATER
Substantially higher temperature (70°C+), highly efficient mixing valve (no scolding), minimal heat loss and optimal design features gives up to 20 % more hot water and class leading capacity.
PRO INSULATION
The use of NANOPUR™ with insulation values far surpassing Pentane, often in combination with VACUUM panels, ensures minimum heat loss and class leading energy efficiency.
STRONGER
EVERLAST™ titanium alloyed stainless steel in combination with OSO’s unique ULTRAWELD™ system and state-of-the-art passivation process equals class leading corrosion resistance.
LIGHTER
EVERLAST™ titanium alloyed, high tensile strength, stainless steel equals lower weight and efficient use of resources. OSO products are more than 40 % lighter than enameled products.
BUILT TO LAST
INCOTEC™ el. immersion heaters with ultra high-grade Incoloy 825 stainless, DZR brass, zinc-free soldering and carefully calculated surface loads results in maximum durability in hard water.
