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OSO Maxi Combi - 17RVE

  - Large capacity units for boilers

The Maxi Combi units are manufactured from stainless steel up to 1,000 liters or copper lined steel when up to 5,000 liters. The Combi is suitable for pure electric operation through its 15 kW electric immersion heaters, and/or boiler operation through the integrated heating coil. All units manufactured to the international standard ISO/DIS 2694 (BS 5500). Maxi Combi units can also be manufactured to individual specification.

The stainless steel heating coil comes standard with a surface of 0,6m². Capacity is 25 kW with ΔT 50°C. The coil can be customized to required specifications up to 2,6m². Double pumps and safety are fully integrated in the installation kits. The cold water inlet set and mixing valve are delivered separately, with dimensions depending on the required flow rate. The installation kits are fitted directly on the cylinders’ front, along with the mandatory safety valve and Pressure & Temperature Relief valve. Units are fully insulated within a protective steel casing.

 

Key advantages:

  • Stainless steel pressure vessel for working pressures up to 10 bar
  • Cold water inlet set and mixing valve fitted in front
  • Stainless steel heating coil and 15kW electric as standard
Maxi Turbo - 17R
Maxi Eco - 17RTVE
Technical Specifications
Quick Facts
Choose volume

Maxi Universal is available in 4 volumes, and is suitable for high temperature heat sources with the option of using electricity. The Maxi Universal has electric boosters already installed. For dimensioning of these units, we recommend that you contact OSO sales office, to ensure correct choice of unit. The table below provides a quick view of technical data. We are at your service should you wish to enquire for these units.

 

 

 
Prod. nr. Product description Capacity Hot water - 40°C Hot Water / hour - 40°C Heat-up Time - 15 - 75°C: Heat loss - 24 hours Dia x H mm. Weight - kg
On request Maxi Combi 17RVE 300 - 15 kW/3x230V + coil 0,6m² Dimensioning 580 l. Dimensioning Heat Source 3,2 kWh ø580x1600 65
On request Maxi Combi 17RVE 400 - 15 kW/3x230V + coil 0,6m² Dimensioning 760 l. Dimensioning Heat Source 4,3 kWh ø580x2085 85
On request Maxi Combi 17RVE 600 - 15 kW/3x230V + coil 0,6m² Dimensioning 1100 l. Dimensioning Heat Source 6,5 kWh ø780x1900 139
On request Maxi Combi 17RVE 1000 - 15 kW/3x230V + coil 0,6m² Dimensioning 1800 l. Dimensioning Heat Source 8,9 kWh ø1000x2100 244
Technical Data Sheet
  - click to expand   - click to collapse
 
Indirect Unit Type Type Type Type
Product Maxi Combi 17RVE 300 17RVE 400 17RVE 600 17RVE 1000
Product No. OSO no. On Request On Request On Request On Request
Product Capacity Persons Dimensioning Dimensioning Dimensioning Dimensioning
Product Segment   Commercial Commercial Commercial Commercial
Product
Weight - Net kg 65 85 139 244
Height - Max mm. 1600 2085 1900 2100
Diameter mm. 580 580 780 1000
Volume - Actual ltr. 287 380 550 900
Usable hot water draw off at 40°C (ltr)) ltr. 580 760 1100 1800
Hot Water / hour at 40°C (ltr) ltr. Dimensioning Dimensioning Dimensioning Dimensioning
Heat Up Time - 15°C - max Temp. hours Heat Source Heat Source Heat Source Heat Source
Standing Heat Loss - 24 hours kWh/24 hours 3,2 4,3 6,5 8,9
Dimensions - Cardboard Box LxWxH mm. 595x625x1620 595x625x2250 820x930x2040 1040x1140x2240
Volume - Cardboard Box 0,64 0,79 1,57 2,71
Materials
Inner Cylinder Stainless Steel Ferritic Ferritic Ferritic Ferritic
Coil(s) Stainless Steel Ferritic Ferritic Ferritic Ferritic
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 Mineral Wool Mineralull Mineralull Mineralull
Outer Casing Steel Epoxy Coated Epoxy Coated Epoxy Coated Epoxy Coated
Energy Source
Type - Primary   Boiler Boiler Boiler Boiler
Type - Secondary   - - - -
Temperature - Primary / Lower   High Temp. High Temp. High Temp. High Temp.
Temperature - Secondary / Upper   - - - -
Heating Coil(s)
Surface area - Primary / Lower 0,4 0,4 0,5 0,6
Surface area - Secondary / Upper - - - -
Recommended Flow Rate ltr./min. 20 20 20 20
Heat Source Buffer Volume ltr. - - - -
Electric
Immersion Heater Booster - Capacity kW - - - -
Immersion Heater Backup - Capacity kW 15 (3x5) 15 (3x5) 15 (3x5) 15 (3x5)
Immersion Heater - Phase Phase 3 3 3 3
Immersion Heater - Voltage Volt 230 230 230 230
Thermostat Type   Surface Surface Surface Surface
Upper Working Thermostat - Temp. Range °C - - - -
Upper Working Thermostat - Set Temp. °C - - - -
Lower Working Thermostat - Temp. Range °C 60-90 60-90 60-90 60-90
Lower Working Thermostat - Set Temp. °C 75 75 75 75
Electrical Installation   Regulations Regulations Regulations Regulations
IP Classification   IP 21 IP 21 IP 21 IP 21
Connections
Cold Feed / Hot Water Draw Off Location Side Side Side Side
Cold Feed / Hot Water Draw Off " (inches) 2 x 5/4 - Female 2 x 5/4 - Female 2 x 1 1/2 - Female 2 x 1 1/2 - Female
Drain Connection " (inches) 3/4 - Female 3/4 - Female 3/4 - Female 3/4 - Female
Safety Valve (Overflow Connection) " (inches) - - - -
T&P Valve Connection " (inches) - - - -
Secondary Return / Hot Water w/o mixing " (inches) 2 x 3/4 - Female 2 x 3/4 - Female 2 x 3/4 - Female 2 x 3/4 - Female.
Immersion Heater(s) " (inches) 5/4 5/4 5/4 5/4
Primary Coil Flow / Return " (inches) - - - -
Secondary Coil Flow / Return " (inches) - - - -
Sensor Connection " (inches) 2 x 3/4 - Female 2 x 3/4 - Female 2 x 3/4 - Female 2 x 3/4 - Female
Safety
Safety Valve - Opening Pressure +/- 5 % Bar - - - -
T&P Valve - Opening Pressure/Temp. Bar/°C 10/95 10/95 10/95 10/95
Safety Thermostat - Cut-out Temp. °C 98 98 98 98
Inner Cylinder - Design Pressure /Temp. Bar/°C 10/99 10/99 10/99 10/99
Coil(s) - Design Pressure Bar 10 10 10 10
Certifications / Approvals
Product Certifications Certificates CE / NEMKO
Manufacturing Plant Approvals Standards ISO 9001:2008 / ISO 14001:2008 / OHSAS 18001
Environment
Environmental Declaration  
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 10 / 2 10 / 2 10 / 2 10 / 2