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Delta Twincoil – DTC

  – Ultimate energy flexibility

DELTA TWINCOIL – DTC – is extremely versatile and utilizes dual energy sources, ideally solar (up to 10 m²) in the lower heating coil, and a high temperature energy source such as boiler (up to 25 kW) in the upper heating coil.

It comes standard with an INCOTEC immersion heater for peak load or as backup for increased reliability. The D-DESIGN platform boasts class leading insulation capabilities, sleek design, and ErP* A-rating. The DELTA GEO COIL utilizes Vacuum Insulation Panels to minimize heat loss, and save more energy than ever before. Exceptional lifetime economy, unparalleled efficiency and outstanding quality makes OSO products the natural choice.

* Energy related Products Directive – 2009/125/EC

 

Key advantages:

  • ErP energy efficiency rating “A” – unique in its class
  • The ultimate in energy flexibility for the future
  • 10 year warranty on the stainless steel cylinder
Delta Coil – DC
Optima Coil – EPC
Product Data Sheet
  – click to expand   – click to collapse
 
Indirect Unit Type Type
Product Delta Twincoil DTC 200 DTC 300
Product No. OSO no. 800 03 06 800 03 08
Product Capacity Persons 4 6
Product Segment   Domestic Domestic
Product
Weight - Net kg 53 63
Height - Max mm. 1270 1750
Diameter mm. 595 595
Volume - Actual ltr. 192 282
Usable hot water draw off at 40°C (ltr) ltr.
Hot Water / hour at 40°C (ltr) ltr. Heat Source Heat Source
Heat Up Time - 15°C - max Temp. hours Heat Source Heat Source
Standing Heat Loss - 24 hours kWh/24 hours
Dimensions - Cardboard Box LxWxH mm. 595x595x1305 595x595x1755
Volume - Cardboard Box 0.46 0.62
Materials
Inner Cylinder Stainless Steel LDX LDX
Coil(s) Stainless Steel LDX LDX
Electric Element(s) Stainless Steel Incoloy 825 Incoloy 825
Electric Box and Lid(s) Plastic V0 Plastic V0 Plastic
Insulation PUR ECO Foam ECO Foam
Outer Casing Steel Epoxy Coated Epoxy Coated
Energy Source   Suggested Suggested
Type - Primary   Solar Solar
Type - Secondary   Boiler Boiler
Temperature - Primary / Lower   Low Temp. Low Temp.
Temperature - Secondary / Upper   High Temp. High Temp.
Heating Coil(s)
Surface area - Primary / Lower 0.80 0.80
Surface area - Secondary / Upper 0.80 0.80
Recommended Flow Rate ltr./min. Solar/boiler Solar/boiler
Heat Source Buffer Volume ltr. - -
Electric
Immersion Heater Booster - Capacity kW 3,00 3,00
Immersion Heater Backup - Capacity kW
Immersion Heater - Phase Phase 1 1
Immersion Heater - Voltage Volt 230 230
Thermostat Type   Surface Surface
Upper Working Thermostat - Temp. Range °C 60-90 60-90
Upper Working Thermostat - Set Temp. °C 75 75
Lower Working Thermostat - Temp. Range °C - -
Lower Working Thermostat - Set Temp. °C - -
Electrical Installation   Regulations Regulations
IP Classification   IP 21 IP 21
Connections
Cold Feed / Hot Water Draw Off Location Side/side Side/side
Cold Feed / Hot Water Draw Off BSP thread 3/4 - female 3/4 - female
Safety Valve (Drain Connection) " (inches) 3/8 - Female 3/8 - Female
Safety Valve (Overflow Connection) " (inches) 3/4 - Female 3/4 - Female
T&P Valve (Overflow Connection) Compression 15mm 15mm
Secondary Return / Hot Water w/o mixing " (inches) - -
Immersion Heater(s) " (inches) 5/4 5/4
Primary Coil Flow / Return " (inches) 3/4 - Female 3/4 - Female
Secondary Coil Flow / Return " (inches) 3/4 - Female 3/4 - Female
Sensor Connection w/ PG nipple mm. 8mm 8mm
Safety
Safety Valve - Opening Pressure +/- 5 % Bar 9 9
T&P Valve - Opening Pressure/Temp. Bar/°C 10/95 10/95
Safety Thermostat - Cut-out Temp. °C 98 98
Inner Cylinder - Design Pressure /Temp. Bar/°C 10/99 10/99
Coil(s) - Design Pressure Bar 10 10
Certifications / Approvals
Product Certifications Certificates CE / NEMKO / KIWA / WRAS
Manufacturing Plant Approvals Standards ISO 9001:2008 / ISO 14001:2008 / OHSAS 18001
Environment
Environmental Declaration 100 % Recyclable / >60 % Recycled Materials / ODP of 0 / GWP of 1
Warranty - Water Quality EN 98/83EC
Water - Chloride Content Max - Cl ppm 250 250
Water - Sulphate Content Max - So4 ppm 250 250
Water - Chloride/Sulphate Content Max ppm 250 250
Warranty Period - Inner Cylinder / Parts Years 10 / 2 10 / 2