GE E4LE - Manual (Page 21)

2.17 Operation and Maintenance
The operation and maintenance of an E-Series RO machine requires regular data
recording and routine preventative maintenance. It cannot be emphasized enough
the importance of filling out the Daily Log Sheet (Technote 106) during each operat-
ing shift. A Start-Up Data Sheet (Technote 105) should have been completed at start-
up containing pertinent facts on the operation of your machine. These two records
are invaluable in diagnosing the performance of the equipment, and must be kept for
reference. If you have questions concerning the operation of your machine or the
method of data recording, contact the manufacturer.
Three preventative maintenance procedures, which must be done on a regular basis,
are as follows:
1. Change the pre-filter cartridges as needed. Pressure drop across the pre-fil-
ters should not exceed 8 psi (0.6 bar).
2. Clean the RO membrane elements with approved cleaners at least quarterly,
depending on feed water quality.
3. Flush the RO machine daily.
2.17.1 Daily Flushing for the Economy Model
If your E4-Series machine is an ECN Model it needs to be manually flushed
daily. The DLX E4-Series machine is equipped with an Autoflush Timer
(Section 2.15, Autoflush Timer). A daily manual flush must be performed. To
flush the machine:
1. With the machine running, open the concentrate valve 1/2 - 3/4 turn.
NOTE: During flushing procedure, the machine must be running.
2. Allow the machine to operate with the concentrate valve open (Step 1)
for 10 - 15 minutes.
3. After 10 - 15 minutes, return the concentrate valve to its previous set-
ting, and return to normal operation.
CAUTION: When opening the concentrate valve, never allow the
machine’s primary pressure to drop more than 10%
below normal operating pressure.
2.17.2 Daily Flushing for the Deluxe Model
The DLX Model machine includes an Autoflush Timer Option. The Autoflush
Timer Option automatically flushes the machine at preset
intervals.
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