DELTA TWINCOIL

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OSO DELTA TWINCOIL
DTC

Ultimate solar energy efficiency

DELTA TWINCOIL series is the most efficient solar thermal cylinder available, uitilising unique Vacuum Panel Insulation enabling ErP* B-rated cylinders available from 200 - 300 L. DELTA boasts 30 - 50% higher efficiency than rivals, translating into direct SAP gains. DELTA series can save enough energy to pay for the entire cylinder over its lifetime. Delta has holiday and anti-legionalla finctionality. * Energy-related Products Directive – 2009 / 125 / EC.

DELTA TWINCOIL— DTC is ideal for domestic hot water production from solar collectors up to 12 m² in combination with boilers, with the smooth piped, scale-resistant heating coil.
DELTA TWINCOIL is the most efficient solar cylinder available and can provide up to 60 % of annual DHW requirements from solar collectors. DELTA uses a high performance fully flooded design, with separate expansion vessel, and an ultra-grade INCOTEC immersion heater as booster (or back-up) between the heating coils. A complete set of inlet control valves comes standard. The DTC units can be controlled either via its own digital thermostat or using thermistor probe(s). DELTA TWINCOIL is compatible with both S & Y plan systems, displays the water temperature and offers holiday and anti-legionella modes.

WHY CHOOSE DELTA TWINCOIL?
•  Reduce heat loss by 400 kWh* / year with NANOPUR and VIP*
• Hot water from alternative energy sources for ultimate flexibility
• 25 year warranty on the stainless steel pressure tank
* Compared to 200 L cylinder with EPS insulation
• Supported by BIM, see more by clicking BIM here

Advantages
DELTA DESIGN - Elegant and functional
NANOPUR - Class-leading insulation
VACUUM - Ultimate performance
ULTRAWELD -Superior corrosion resistance
INCOTEC -High durability in hard water
ECO–HOTWATER - DHW from alternative energy
Components
Immersion thermostat - Adjustable 20–70 °C — Preset  60 °C
Cylinder thermostat - Electronic dual cylinder thermostat
T&P relief valve - Reliance 10 bar —90-95°C
G3 kit - Strainer / PRV / exp.relief / drain cock / tundish
Motorized valve - Honeywell V4043H1056C
Expansion vessel - 12 - 24 L supplied
Appliance feet - Adjustable — Factory fitted
SpecificationsUnitDTC 200 - 3 kW / 1 × 240 V + HX 0,8 + 0,8 m²DTC 250 - 3 kW / 1 × 240 V + HX 0,8 + 0,8 m²DTC 300 - 3 kW / 1 × 240 V + HX 0,8 + 0,8 m²
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Identification
Product no.OSO102116001021170010211800
Product seriesDELTA TWINCOILDELTA TWINCOILDELTA TWINCOIL
Product nameDTC 200 - 3 kW / 1 × 240 V + HX 0,8 + 0,8 m²DTC 250 - 3 kW / 1 × 240 V + HX 0,8 + 0,8 m²DTC 300 - 3 kW / 1 × 240 V + HX 0,8 + 0,8 m²
UsageHot waterHot waterHot water
PlacementFloorFloorFloor
Dimensions
Diameter — ⌀mm595595595
Height — Hmm127015401750
Weightkg475158
Packagingmm595 × 595 × 1305595 × 595 × 1555595 × 595 × 1765
Freight volumedm3462551625
Technical / ErP information
Capacity Persons3.04.05.0
Capacity    40°CLNot applicable Not applicable Not applicable
VolumeL190242281
Thermostat set point°C606060
Heat loss 
 EN 12897
Watt495458
Heat loss / 24 hrs - EN 12897kWh/day1.181.31.39
AEC (energy consumption)kW /yearNot applicable Not applicable Not applicable
Energy efficiency%Not applicable Not applicable Not applicable
Tapping profile3XS–XXLNot applicable Not applicable Not applicable
Energy ratingA+–FBBB
Primary Heating PowerkWNot applicable Not applicable Not applicable
Heat-up time ΔT 55°C CoilMinsNot applicable Not applicable Not applicable
Heat-up time ΔT 55°C upper elementMinsNot applicable Not applicable Not applicable
Heat-up time ΔT 55°C lower elementMinsNot applicable Not applicable Not applicable
Recovery time ΔT 55°C coil 70%MinsNot applicable Not applicable Not applicable
Recovery time ΔT 55°C upper element 70%MinsNot applicable Not applicable Not applicable
Recovery time ΔT 55°C lower element 70%MinsNot applicable Not applicable Not applicable
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.