Water heater from the MAXI series has shown class-leading operational durability for commercial hot water systems through the last 50 years. MAXI has been constructed with EVERLAST™ high-alloy stainless steel in combination with ULTRAWELD™ technology for optimal corrosion resistance. MAXI series can be modified according to customer requirements.
The water heater MAXI STANDARD — MS is suitable for most commercial hot water demands, and is heated either with the integrated electric INCOTEC immersion heaters, or via an external energy source and the TURBOSYSTEM with a plate heat exchanger (optional capacity) and double sets of pumps for extra operational safety. The electric immersion heaters has optional effect 2.5–15 kW, 230–400 V + N 3-phase, and is thermostat controlled 50–75 °C in three steps with separate safety thermostats. Contactors are not required and the support cable is connected directly to the central.
Installation kits for cold water inlet with shut-off valve, hot water outlet with mixing valve, plate heat exchanger with pumps (TURBOSYSTEM) and piping for connecting multiple units has been custom-made to fit directly on the MAXI series, with double sealing for an added layer of safety.
WHY CHOOSE MAXI STANDARD?
Advantages
Components
 |  |  | ||
| Specifications | UNIT | MS 1 000 – 2×7.5 kW/3x400V | MS 400 – 2×7.5 kW/3x230V | MS 600 – 2×7.5 kW/3x400V |
|---|---|---|---|---|
| Identification | ||||
| Product no. | OSO | 1 1 009 897 | 1 1 008 985 | 1 1 009 827 |
| Product name | MS 1 000 - 2x7.5 kW/3x400V | MS 400 - 2x7.5 kW/3x230V | MS 600 - 2x7.5 kW/3x400V | |
| Usage | N/A | N/A | N/A | |
| Placement | Floor | Floor | Floor | |
| Dimensions | ||||
| Diameter — ⌀ | mm | 1000 | 595 | 800 |
| Height - H | mm | 2120 | 2172 | 2030 |
| Weight | kg | 180 | 79 | 105 |
| Packaging | mm | N/A | N/A | N/A |
| Freight volume | dm3 | N/A | 0.81 | N/A |
| Technical/ErP information | ||||
| Capacity | persons | N/A | N/A | N/A |
| Capacity 40°C | L | N/A | 771 | N/A |
| Volume | L | 885 | 372 | 570 |
| Heat-up time ΔT 65°C | hours | N/A | N/A | N/A |
| Thermostat set point | °C | 75 | 75 | 75 |
| Heat loss-EN 12897 | watt | N/A | 90 | N/A |
| 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 | N/A | C | N/A |
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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