Care and Maintenance
56 Operating Instructions Arium
®
Comfort I, Comfort II
9.1 System Cleaning
If consumable materials are to be replaced in addition to system cleaning,
we recommend replacing these once cleaning has been completed.
System cleaning removes scaling and organic soiling in the ultrapure water
purification stage. Moreover, it removes blockages in the RO modules.
System cleaning comprises a two-stage cleaning process. In the initial
cleaning process, the system is rinsed with an alkaline cleaning solution
(Alkaline Cleaner Solution 1). The cleaning agent contains non-foaming
tensides that dissolve organic compounds and allow colloids to disperse.
In the second cleaning step, the system is rinsed with an acid cleaning agent
(Acid Cleaner Solution 2). The acid cleaning agent contains chelate and
reducing agents to remove scaling organic | metallic deposits.
The system cleaning is designed so that all cleaning agents are flushed out
of the Arium
®
Comfort system at the end.
The interval for system cleaning can be 2 – 4 months. This depends on the
water hardness of the feed water. Sartorius distinguishes between hard
(every 2 months), medium (every 3 months) and soft (every 4 months). The
water hardness entered for the iJust function determines the interval. If the
iJust function is deactivated, the interval is 3 months.
We recommend that you perform a maximum of 5 system cleaning cycles
for the RO module, e.g. replace the RO modules after the 5th system
cleaning. The system cleaning timer is deactivated after the 5th time.
The following components are required to perform system cleaning:
Cleaning kit with order no. H2O-CCS (see Chapter "13 Accessories and
Replacement Parts", page 93)
1.5–2 liter container for preparing the cleaning solution
1 liter water (RO water recommended)
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