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OPTIMA COIL – OC

Heat and hot water from heat pump without hot water priority

OPTIMA COIL – OC – covers the hot water requirement for approx. 6 people and the heat demand in homes up to approx. 400 m² in a single unit. OPTIMA COIL is very suitable for heat pumps where hot water prioritization is not used. The heat pump preheats the hot water efficiently via the stainless steel heat exchanger and the bottom of the hot water tank with a total heating surface of 1.4 m² integrated in the buffer tank. OPTIMA COIL is also available for high temperature systems and is a perfect replacement for oil boilers. All OPTIMA models have an electric element for the heating system and electric supplemental heat for the hot water, which further increases performance.

OPTIMA is the market’s most advanced and energy efficient tank-in-tank products, with foam insulation and patented solutions to increase hot water production from alternative energy sources. The OPTIMA series integrates both stainless steel buffer tank and heat exchangers in one unit, and takes up minimal space. The mixing valve lowers the outgoing hot water temperature and prevents the risk of scalding. OPTIMA is particularly well suited as preparation for heat pump installation in the future, and can supply both heat and hot water with electrical elements.

WHY CHOOSE OPTIMA COIL?

  • Save approx. 650 kWh / year in relation to good, insulated boilers (300 L)
  • Integrated heat exchanger for preheating hot water
  • Integrated stainless steel buffer tank saves approx. 1 m² floor space
  • Electrical element for both heating and hot water
Stainless steel hot water cylinder Optima Coil
Optima Coil OC 300 varmtvannsbereder
Optima Coil OC 300 varmtvannsbereder
Optima Coil OC 300 sikkerhetsventil
Stainless steel hot water cylinder Optima Coil
Optima Coil OC 300 varmtvannsbereder
Optima Coil OC 300 varmtvannsbereder
Optima Coil OC 300 sikkerhetsventil

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

IMPORTANT EQUIPMENT

  • Thermostat VV / Buffer – Adjustable 50 - 80 °C / see technical data
  • Mixing valve VV – Adjustable 40 - 75 °C
  • Safety v. VV / Buffer – 9 bar, G ¾ ”F overflow / 3 bar, G ½” M overflow
  • Heating element (s) – G 1.¼ "W / lime resistant
  • Pressure gauge – Disc gauge, 0 - 4 bar
  • Sensor pockets – 1 pc. for 6/8 mm. feel
  • Appliance feet – Adjustable 0 - 40 mm.
Weight 300 kg
Dimensions 5 cm
OPTIMA OC 300LT SECTION VIEW SIDE e1615456257503 OPTIMA OC 360LT SECTION VIEW SIDE e1615456268300
SpecificationsUNITOC 300 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 0,8 m²OC 360 - 3 + 15 kW / 1 / 3 + 230 V LT + HX 0,8 m²
Identification
Product no.OSO8000266 8000228
Product nameOC 300 - 3 + 9 kW / 1 / 3 × 230 V LT + HX 0,8 m² OC 360 - 3 + 15 kW / 1 / 3 + 230 V LT + HX 0,8 m²
UsageNot applicableNot applicable
PlacementFloorFloor
Dimensions
Diameter — ⌀mm595595
Height - Hmm18132131
Weightkg6275
Packagingmm 595 × 595 × 2000
Freight volumedm3651744
Technical/ErP information
Capacitypersons5,57,5
Capacity 40°CL203/92224/136
VolumeL163206
Heat-up time ΔT 65°ChoursN/A N/A
Thermostat set point°C75/4575/45
Heat loss-EN 12897watt5054
AEC (energy consumption)kW/yearNot applicableNot applicable
Energy efficiency%Not applicableNot applicable
Tapping profile3XS–XXLNot applicableNot applicable
Energy ratingA+–FB/BB/B

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.

Documents

Download OPTIMA COIL – OC manual
Assembly and spare parts
OSO Hotwater logo white

Ethical guidelines

Over 85 years OSO Hotwater has earned the trust from suppliers, co-workers and customers. We are still going to earn, and manage, this trust in an exceptionally good way, and value the opinion of our partners.

Our guiding targets:

  1. Safe products, manufactured by safe processes
  2. Class leading quality and efficiency
  3. Correct products delivered on-time
  4. Cost- and energy efficient processes
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OSO Hotwater AS

Organization number 936 603 947

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