Danfoss iSave 21, User Manual

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Instruction Membrane cleaning of the RO-system with iSave unit
4 180R9214 / 521B1165 / DKCFN.PI.003.G2.02 / 03.2011
P&ID no. 2
10. Flush RO permeate or deionised water into the “full flow cleaning” adapter (7) on the feed side of
the membrane. Flush out the cleaning solution.
It is essential that the water used for the final pre-flush is pre-filtered to a level described in the
datasheet.
11. Remove plug (9). Water will flow out of the iSave and the iSave may start to rotate backward – this
is OK.
12. Continue to flush the iSave until no chemicals are coming out of the iSave.
13. When flushing is finalised – Close the high pressure “full flow cleaning” valve (7) and close valve (16).
14. Connect the high pressure pipe to joint (9) again.
Normal operation mode
Membrane cleaning mode