OSO OPTIMA TWINCOIL OTC
Energy flexibility with unique tank-in-tank design for HP+Solar
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 TWINCOIL — OTC is ideal for heat pumps with three way valve for DHW priority up to 12 kW in combination with solar collectors up to 12 m², and for heating demands in households up to 400 m². The smooth piped, scale-resistant heating coils are situated so that thermodynamics always ensure the most efficient use of energy source - solar is prioritized in the lower heating coil, heat pump in the buffer tank for heating, and for DHW in the upper heating coil. 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 TWINCOIL?
• Reduce heat loss by 300 kWh* / year with NANOPUR*
• Custom-designed for solar collectors up to 12 m² + heat pump up to 12 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
|Specifications||Unit||OTC 400 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 1,8 + 0,8 m²|
|Product series||OPTIMA TWINCOIL|
|Product name||OTC 400 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 1,8 + 0,8 m²|
|Diameter — ⌀||mm||580|
|Height — H||mm||2250|
|Packaging||mm||595 × 595 × 2230|
|Technical / ErP information|
|Capacity 40°C||L||Not applicable|
|Heat-up time |
|Thermostat set point||°C||75|
|Heat loss |
|AEC (energy consumption)||kW /year||Not applicable|
|Energy efficiency||%||Not applicable|
|Tapping profile||3XS–XXL||Not applicable|
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.
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.
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.
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.