WaterLine RO – 
Reverse osmosis systems.

Reverse osmosis water treatment is an effective protection for all air humidification and cooling systems. It reduces salts and lime that exist in nature and prevents the formation of viruses and bacteria in the duct systems.

Before our drinking water is fed into the water pipes, it flows through numerous different layers of rocks. Depending on the region, it therefore contains more or less minerals such as calcium and magnesium. If this water is used, for example, in steam humidifiers for air humidification, it can accumulate in the form of lime and salt deposits on the heating elements and damage them.

For this reason, we recommend precautionary water treatment with a WaterLine reverse osmosis system from a hardness level of 18.8 °e (268 ppm). Harmful deposits can be reduced by up to 95%.

The maintenance effort and thus the operating costs of air humidification and cooling systems can be noticeably reduced by water treatment and the average operating time is significantly extended.

But not only lime and salt crystals are removed from the water by the cleaning process. The water treatment with a WaterLine RO system is also a very effective protection against viruses and bacterial contamination in air humidification and cooling systems.

Viruses and bacteria present in the water are filtered out by the process of reverse osmosis – even before they reach the air humidification systems. This prevents them from spreading and being released into the room air.

For this reason, the integration of a system for water treatment using reverse osmosis is particularly recommended when planning air humidification systems in hygienically sensitive application areas.

In the reverse osmosis process, the water to be treated is forced under high pressure through a semi-permeable membrane with pores less than 0.001 μm. This makes it possible to separate undesirable components of tap water, such as viruses, bacteria, minerals, pesticides, hormones and heavy metals from the water molecules.

Result: Permeate - water with an above average high degree of purity.

MANY FUNCTIONS – SIMPLE OPERATION

The integrated control and operating unit with its clearly laid out display enables convenient and simple operation of the WaterLine ROC system.

• Display of fault and operating messages
• Maintenance indicator and operating hours counter
• Conductivity display (permeate) with adjustable limit value of maximum permissible water conductivity (safety shutdown of the system can be capitalised if the limit is exceeded)
• External release via potential-free contact possible
• Programmable forced flushing
• Integrated pressure switch

Optional functions and components:

• Adjustable blending unit to increase permeate conductivity
  (when used with electrode steam humidifier and optional conductivity sensor)
• External UV disinfector for maximum hygiene
• Pressure expansion tank for constant pressure between 2 - 4 bar, volume optionally 18 or 40 litres
  (with wall bracket – stand pressure expansion tank possible on request)

SPACE-SAVING WALL MOUNTING AND QUICK INSTALLATION

The WaterLine ROC can be mounted on a load-bearing wall in the tightest of spaces. To make the installation as quick and easy as possible, the entire system is supplied on a corrosion-resistant mounting plate ready for connection. It is attached to a load-bearing substructure via 4 mounting points (Ø 10 mm).

MAINTENANCE-FRIENDLY AND COMPACT SYSTEM DESIGN

Despite the compact system design, the change of the pre-filter as well as the membrane can be done quickly and easily.
The WaterLine ROC system is also characterised by long maintenance intervals. With optimum water quality (drinking water up to 25.0 °e with maximum salt content [TDS] 357 ppm (>1000 µS/cm)). The membrane can be used for up to one year.

water pretreatment

In order to protect the membrane of the WaterLine ROC system from excessive wear caused by lime deposits, additional water pretreatment should be planned, depending on the water hardness of the raw water:

• Up to 25 °e (357 ppm): Possible without water pretreatment
• Above 25 °e (357 ppm): Water softening with softening unit (e.g. WaterLine Double)
• Exception up to 35 °e (500 ppm): Dosing pump for antiscalant possible
• Dosing pump optional available for WL-ROC-140

MANY FUNCTIONS – SIMPLE OPERATION

The integrated control and operating unit with its clearly laid out display allows convenient and simple operation of the WaterLine ROL system.

• Display of fault and operating messages
• Maintenance indicator and operating hours counter
• Conductivity display for permeate and untreated water with adjustable limit value of the maximum permissible water conductivity (safety shutdown of the plant if this is exceeded)
• External release and alarm message possible via potential-free contact
• Programmable forced flushing
• Integrated pressure switch
• Pressure tank selection

 Optional functions and components:

• External UV disinfector for maximum hygiene
• Pressure expansion tank with stand (volume optionally 80 to 500 litres)

QUICK INSTALLATION

The WaterLine ROL is supplied completely pre-assembled on a stable support frame and is thus prepared for quick installation and commissioning.

water pretreatment

In order to protect the membrane of the WaterLine ROL system against rapid wear caused by lime deposits, additional water pretreatment has to be planned, depending on the hardness of the raw water:

• Up to 35 °e (500 ppm):
  Optionally with integrated dosing pump, injection point and empty canister for antiscalant or softening system
• Above 35 °e (500 ppm):
  Water softening with softening unit (e.g. WaterLine Double)