The MAXI series is the class-leading commercial range of hot water calorifiers, built to the high standards of design and efficiency that is synonymous with OSO Hotwater products. The MAXI range has been manufactured with EVERLAST™ high-alloy stainless steel in combination with ULTRAWELD™ technology for optimal corrosion resistance. Not only is the MAXI range extremely efficient, with industry-leading performance it can also be modified according to customer requirements.
MAXI ACCU HEAT – MA is an ideal accumulator tank for storage of hot water from heat pump / solar collectors, ensuring optimal working conditions for the energy source and providing stable temperature to the system.
Other sizes and specifications are available to order.
WHY MAXI ACCU HEAT?
Superior energy-efficiency
Accumulator provides a stable hot water temperature for the system
6 bar design pressure
Advantages
Components
 |  |  | ||
| Specifications | UNIT | M 400 | MA 1000 HEAT | MA 600 HEAT |
|---|---|---|---|---|
| Identification | ||||
| Product no. | OSO | 1 1 009 866 | 1 1 003 345 | 1 1 003 351 |
| Product name | M 400 | MA 1000 HEAT | MA 600 HEAT | |
| Usage | N/A | Heat | N/A | |
| Placement | Floor | Floor | Floor | |
| Dimensions | ||||
| Diameter — ⌀ | mm | 595 | 1000 | 800 |
| Height - H | mm | 2180 | 2100 | 1900 |
| Weight | kg | 78 | 178 | 98 |
| Packaging | mm | 595 × 595 × 2240 | 1020 × 1020 × 2200 | N/A |
| Freight volume | dm3 | 0.81 | N/A | N/A |
| Technical/ErP information | ||||
| Capacity | persons | N/A | N/A | N/A |
| Capacity 40°C | L | N/A | N/A | N/A |
| Volume | L | 376 | 885 | 550 |
| Heat-up time ΔT 65°C | hours | N/A | N/A | N/A |
| Thermostat set point | °C | N/A | N/A | N/A |
| Heat loss-EN 12897 | watt | 89 | 140 | 119 |
| AEC (energy consumption) | kW/year | N/A | N/A | N/A |
| Energy efficiency | % | N/A | N/A | N/A |
| Tapping profile | 3XS–XXL | N/A | N/A | N/A |
| Energy rating | A+–F | C | C | C |
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.
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:
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