H2O ECONOX, Руководство по эксплуатации

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15
Pure water permeation (PWP) factor calculation
Procedure

Rinse membrane with permeate.

Adjust pressure to 150 psi

Take permeate flow rate reading

Take water temperature reading

Correct permeate flow at 13 °C (55 °F).
Please see annex 1: Temperature correction factor chart
Data
Initial PWP = 7 GPM (to be taken when membrane is new, after 12 to 24 hours of use
and at 13 °C).
If today's readings are:
Pressure =I50 psi at 20 °C Permeate flow = 6 GPM
PWP calculation
Initial flow rate (7 GPM) - current flow rate (compensated at 13 C) 5 GPM* = Flow rate
loss (2 GPM) / Initial flow rate (7 GPM) = 71 % vs the initial 100 %. So 100% - 71%= 29
% lost
FLOW RATE LOSS IS OVER 20% THEREFORE YOU MUST PROCEED TO A WASH
CYCLE.
* See page 27
Rinse cycle
General outlook
Maple sap contains a good amount of sugar and bacteria. The spiral-type membrane
collects sugar and bacteria deposits on its surface and in the wound mesh. That's why it
is absolutely necessary to regularly and thoroughly rinse the reverse osmosis system.
This cycle is carried out in two stages:
First: all concentrated water must be flushed away, using permeate, towards the
concentrate tank B-4.