OPTIMA GEOCOIL

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OSO OPTIMA GEOCOIL
OGC

The ultimate tank-in-tank unit for heat pumps up to 12kW

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 GEOCOIL — OGC is ideal for heat pumps with three way valve for DHW priority up to 12 kW, and for heating demands in households up to 300 m². The smooth piped, scale-resistant heating coil in the DHW tank has a is carefully calculated surface area for efficient DHW production from the heat pump. OPTIMA GEOCOIL 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 GEOCOIL?
• Reduce heat loss by 300 kWh* / year with NANOPUR*
• Custom-designed for heat pumps with DHW priority up to 12 kW
• 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

Advantages
NANOPUR - Class-leading insulation
ULTRAWELD - Superior corrosion resistance
INCOTEC - High durability in hard water
DUO STAINLESS - Tank-in-tank all stainless
HEATING+DHW - Two funtions, one footprint
ECO–HOTWATER - DHW from alternative energy
Components
Mixing valve — Adjustable 45–80 °C — Preset 55 °C — ⌀ 15 mm *
Thermostat DHW — Adjustable 60–90 °C — Preset 75 °C
Thermostat buffer —Adjustable 30–60 °C — Preset 45 °C
Safety valve —9 bar + 3 bar — ¾" to drain
Appliance feet — Adjustable — Included
Buffer connection —4 × 1" female BSP threads
Coil connection—2 × ¾" female BSP threads
SpecificationsUnitOGC 360 - 3 + 15 kW / 1 / 3 × 230 V LT + HX 1,8 m²
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Identification
Product no.OSO8000277
Product seriesOPTIMA GEOCOIL
Product nameOGC 360 - 3 + 15 kW / 1 / 3 × 230 V LT + HX 1,8 m²
UsageNot applicable
PlacementFloor
Dimensions
Diameter — ⌀mm580
Height — Hmm1990
Weightkg88
Packagingmm595 × 595 × 2000
Freight volumedm3744
Technical / ErP information
Capacity Persons5.0
Capacity    40°CLNot applicable
VolumeL244
Heat-up time 
 ΔT 65°C
HoursN/A
Thermostat set point°C75
Heat loss 
 EN 12897
Watt71
AEC (energy consumption)kW /yearNot applicable
Energy efficiency%Not applicable
Tapping profile3XS–XXLNot applicable
Energy ratingA+–FC/C
Advantages: 

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.