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13-11-608 Page 67
SECTION 12
TROUBLESHOOTING THE RO FILTRATION SYSTEM
Problem: None or low water production
Reasons:
Solutions:
Raw water feed (gg) turned off. ...........................
Open raw feed water valve.
Pre-filters (ll, hh) fouled or plugged. .....................
Replace cartridges.
Raw water feed pressure below 50psig................
Improve pressure condition.
Back pressure regulator (
jj
) plugged. ...................
Cleanse or replace.
Membrane fouled or plugged. .............................
Fast-flush or replace.
Storage tank (
nn
) under pressurized....................
Adjust membrane air pressure (15-20 psi).
Storage tank membrane ruptured. .......................
Replace storage tank.
Isolation valve (
pp)
turned off. .............................
Open isolation valve.
Fill valve (tt) leaking or stuck open.......................
Cleanse or replace
Problem: High TDS product water
Reasons:
Solutions:
Membrane fouled. ..............................................
Fast-flush or replace.
TDS increased in raw water feed.........................
Check that TDS < 1800 ppm.
Membrane fouled. ..............................................
Fast-flush or replace.
Prefilter housings not flushed. .............................
Repeat housing cleansing and flushing.
Problem: Cloudy water
Reasons:
Solutions:
Dissolved oxygen in feed water is concentrated
In product water.................................................
Oxygen dissolves from water over time
Summary of Contents for PUREAIR EWD99E
Page 7: ...13 11 608 Page 2 Figure 1 2 PACKAGE ILLUSTRATION AIR COOLED 302EWD797 A Ref Drawing...
Page 8: ...13 11 608 Page 3 Figure 1 3 PACKAGE ILLUSTRATION WATER COOLED 303EWD797 A Ref Drawing...
Page 9: ...13 11 608 Page 4 Figure 1 4 WATER COOLED SCHEMATIC 300EWD797 D Ref Drawing...
Page 10: ...13 11 608 Page 5 Figure 1 5 AIR COOLED SCHEMATIC 301EWD797 D Ref Drawing...
Page 30: ...13 11 608 Page 25 Figure 4 2 FLOW CHART FOR SETUP PROGRAMMING 300EWC1255 Ref Drawing...
Page 44: ...13 11 608 Page 39 301EWD546 B Ref Drawing Page 2 of 2...
Page 46: ...13 11 608 Page 41 302EWD546 B Ref Drawing Page 2 of 2...
Page 48: ...13 11 608 Page 43 303EWD546 B Ref Drawing Page 2 of 2...