Rev. 4.00 December 2014
Software version 1.04
Part 1 • Page 1-2 Safety
Part 1 – Operating Instructions
EcoRO Dia I/II (HT)
Part 1 • Chapter 1
1.2 Functional safety
1.2.1 Pre-treatment
The system must be connected to an upstream pre-treatment stage.
The instructions of use are given with a separate document.
Depending on the raw water (drinking water) conditions the pre-treatment includes essentially:
• Back flow prevention (PPBA) or vacuum breaker
• Temperature mixing valve if raw water temperature exceeds range of 6–30°C or 42.8…86°F.
• Booster pump if raw water pressure is lower than 3 bar (43,5 psi) → required operating pressure
3–6 bar (43,5 to 87 psi)
• Sediment filter if SDI15 (silt density index) exceeds 5 → see part 1, chapter 2.4 “Water quality
requirements”
• De-Ironer if Iron content exceeds 0.1 mg/l → see part 1, chapter 2.4 “Water quality requirements”
• Softener if hardness is determined → see part 1, chapter 2.4 “Water quality requirements”
Main features:
– Only use twin alternator systems to keep dialysis operation independedly to regenerating
process of softener à 24h operation possible
– Diligent monitoring of hardness daily or prior RO operation (manually or automatically with
Aquaboss Softcontrol II)
• Activated Carbon tanks to eliminate chlorine and chloramines
Main features:
– two tanks in series with sampling point in between
– EBCT of min. 10 minutes
– Use only new activated carbon with iodine number > 900
– Label tanks with “Only for pre-treatment of water prior R:O!
• Pre-Filter 5µm
Variable feed water characteristics (e.g. iron…) may affect the capacity of the softener resin.
It is necessary to monitor the carbon filter effluent daily/prior RO operation.
Do NOT use regenerated carbon!
Exhausted or contaminated carbon should be discarded and replaced with new beds.
Variable feed water characteristics (e.g. pH, deposits…) may affect the adsorption capacity
of the carbon granulates. It is necessary to monitor the carbon filter effluent daily/prior
RO operation.
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