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OSO Ecoline Twin Coil RI TC

- Combining high- and low temperature energy sources

The Ecoline Twin Coil is a purpose-designed unvented cylinder for combining alternative heat sources. A low temperature heat source in combination with a high temperature heat source is the optimal combination. The Ecoline Twin Coil has an electric immersion heater as backup in the lower part of the cylinder. High performance fully flooded design, with expansion vessel supplied with the cylinder.

The upper heating coil on the Ecoline Twin Coil is somewhat smaller than the lower. Ideally, the Ecoline Twin Coil utilizes a low temperature heat source, such as solar, in the lower coil, while using a boiler in the upper coil. This combination will provide hot water without the use of electricity. Other combinations are also possible. Solar or heat pump installations using the Ecoline Twin Coil can be eligible for government backed Renewable Heat Incentive.

The Twin coil can be used with inverter technology heat pumps up to 12 kW, or the equivalent in solar collectors, for a high performance system.

The positioning and size of the coils in the Ecoline Twin Coil maximizes the use of the alternative heat source, whilst supplying plenty high temperature hot water. An electric immersion heater is fitted in the bottom of the cylinder for back-up heating. The fully flooded design offers a superior hot water performance, and the separate external expansion vessel is supplied with wall bracket and flexible hose.

Key advantages:

  • Specifically designed for low- and high temperature heat sources in combination.
  • Immersion heater for electric back-up heating when necessary.
  • OSO ECO Foam insulation and 25 year guarantee.
Ecoline Geo RI HP
Optima EPCI
Downloads
Technical Specifications
ERP
Choose volume

Ecoline Twin Coil is available in 4 different volumes, estimated to be suitable for the no. of people designated in the table below. The table shows suitable volumes based on experience from average hot water usage in a normal household. If the household has a large hotwater usage, for instance due to large bathtubs, steamshowers etc., one should choose higher volume than designated in the table. Hotwater capacity is calculated by instant tapping at 40°C. at 40°C a normal shower uses approx. 60 l., bathtubs 180 l. and bubblebaths 400 l. Capacity is also dependant upon the heat source's size and performance.

 

 

 
Prod. nr. Product description Capacity Hot water - 40°C Heat-up (best) - 15°C - max. Recovery (best) - after 75% ERP Rating Heat loss - 24 hours/W Dia x H mm.
RITC200 3 kW/1X240V + coil 0,9+0,5m² 2-3 pers. 284 ltr. 33 min. 25 min. C 1,77 kWh/ 73W ø580x1150
RITC250 3 kW/1x240V + coil 0,9+0,5m² 3-4 pers. 351 ltr. 39 min. 29 min. C 2.0 kWh/ 84W ø580x1400
RITC300 3 kW/1x240V + coil 0,9+0,5m² 4-5 pers. 426 ltr. 51 min. 38 min. C 2,2 kWh/ 92W ø580x1600
RITC380 3 kW/1x240V + coil 0,9+0,5m² 5-6 pers. 538 ltr. 44 min. 33 min. C 2,5 kWh/ 104W ø580x2010
Product Data Sheet
- click to expand - click to collapse
Direct Electric Unit Type Type Type Type
Product Ecoline Twin Coil RI TC 200 RI TC 250 RI TC 300 RI TC 380
Produkt No. OSO no. 1 323 410 1 324 510 1 324 610 1 324 760
Product Capacity Persons 1-3 2-4 3-5 4-6
Product Segment Domestic Domestic Domestic Domestic
Product Cost Estimate - Rating - £/££/£££ OSO Standard ££ ££ £££ £££
Product
Weight - Net kg 56 68 74 91
Height - Max mm. 1150 1400 1600 2010
Diameter mm. 580 580 580 580
Volume - Actual ltr. 192 242 287 370
Usable hot water draw off at 40°C (ltr) ltr. 284 351 426 538
Heat Up - 1 element - 15°C - max Temp. minutes 146 199 232 296
Heat Up - 2 elements - 15°C - max Temp. minutes - - - -
Heat Up - Coil(s) - 15°C - max Temp. minutes 33 39 51 44
Recovery - 1 elements after 75% draw off minutes 133 189 221 285
Recovery - 2 elements after 75% draw off minutes - - - -
Recovery - Coil(s) - 15°C - max Temp. minutes 25 29 38 33
Standing Heat Loss - 24 hours kWh/24 hours 1,77 1,95 2,19 2,55
Standing Heat Loss - Watts Watts 73 84 92 104
ERP Rating C C C C
Expansion Solution External External External External
Dimensions - Cardboard Box LxWxH mm. 585x585x1165 585x585x1415 585x585x1620 625x625x2280
Volume - Cardboard Box 0.399 0.484 0.554 0.891
Materials
Inner Cylinder Stainless Steel Duplex Duplex Duplex Duplex
Coil(s) Stainless Steel Duplex Duplex Duplex Duplex
Electric Element(s) Stainless Steel Incoloy 825 Incoloy 825 Incoloy 825 Incoloy 825
Electric Box and Lid(s) Plastic V0 Plastic V0 Plastic V0 Plastic V0 Plastic
Insulation PUR ECO Foam ECO Foam ECO Foam ECO Foam
Outer Casing Steel Epoxy Coated Epoxy Coated Epoxy Coated Epoxy Coated
Energy Source
Type - Primary Solar Solar Solar Solar
Type - Secondary El. / Gas / Oil El. / Gas / Oil El. / Gas / Oil El. / Gas / Oil
Temperature - Primary / Lower Low Temp. Low Temp. Low Temp. Low Temp.
Temperature - Secundary / Upper High Temp. High Temp. High Temp. High Temp.
Heating Coil(s)
Surface area - Primary / Lower 0,92 0,92 0,92 0,92
Surface area - Secondary / Upper 0,47 0,47 0,47 0,72
Dedicated Volume ltr. 67 97 97 128
Recommended Flow Rate ltr./min. 20 20 20 20
Electric
Immersion Heater - Capacity kW 3 3 3 3
Immersion Heater - Phase Phase 1 1 1 1
Immersion Heater - Voltage Volt 240 240 240 240
Thermostat Type Surface Surface Surface Surface
Upper Working Thermostat - Temp. Range °C 40-70 40-70 40-70 40-70
Upper Working Thermostat - Set Temp. °C 60 60 60 60
Lower Working Thermostat - Temp. Range °C 40-70 40-70 40-70 40-70
Lower Working Thermostat - Set Temp. °C 60 60 60 60
Electrical Installation IEEE regs IEEE regs IEEE regs IEEE regs
IP Classification IP 24 IP 24 IP 24 IP 24
Connections
Cold Feed / Balanced Cold / Hot Water Compression 22mm 22mm 22mm 22mm
Pressure Reducing Valve " (inches) 3/4 - Female 3/4 - Female 3/4 - Female 3/4 - Female
Safety Valve " (inches) 3/4 - Male 3/4 - Male 3/4 - Male 3/4 - Male
P&T Valve (factory fitted) " (inches) 1/2 - Male 1/2 - Male 1/2 - Male 1/2 - Male
Drain Valve " (inches) 3/4 - Female 3/4 - Female 3/4 - Female 3/4 - Female
Secondary Return Use T-piece Use T-piece Use T-piece Use T-piece
Immersion Heater(s) (factory fitted) " (inches) 5/4 - Male 5/4 - Male 5/4 - Male 5/4 - Male
Expansion Vessel External External External External
Primary Flow / Return " (inches) 3/4 - Female 3/4 - Female 3/4 - Female 3/4 - Female
Secondary Flow / Return " (inches) 3/4 - Female 3/4 - Female 3/4 - Female 3/4 - Female
Sensor Connection " (inches) 1/2 - Female 1/2 - Female 1/2 - Female 1/2 - Female
Safety
Safety Valve - Opening Pressure +/- 5 % Bar 8 8 8 8
P&T Valve - Opening Pressure/Temp. Bar/°C 10/90 10/90 10/90 10/90
Safety Thermostat - Cut-out Temp. °C 85 85 85 85
Inner Cylinder - Design Pressure /Temp. Bar/°C 10/99 10/99 10/99 10/99
Coil(s) - Design Pressure Bar 50 50 50 50
Certifications / Approvals
Product Certifications Certificates CE / KIWA / WRAS
Manufacturing Plant Approvals Standards ISO 9001:2008 / ISO 14001:2008 / OHSAS 18001
Environment
Environmental Declaration 100 % Recyclable / >60 % Recycled Materials / Ozone Depletion Potential of 0 / Global Warming Potential of 1
Warranty - Water Quality EN 98/83EC
Water - Chloride Content Max - Cl ppm 250 250 250 250
Water - Sulphate Content Max - So4 ppm 250 250 250 250
Water - Chloride/Sulphate Content Max ppm 250 250 250 250
Warranty Period - Inner Cylinder / Parts Years 25 / 2 25 / 2 25 / 2 25 / 2