GE EZ2 Series - Manual (Page 13)

2.12 Operation and Maintenance
The operation and maintenance of an E2/EZ2-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 operating shift.
A Start-Up Data Sheet (Technote 101) should have been completed at start-up. The Start-
Up Data Sheet contains 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.
2. The machine needs to run and flush for at least 10 minutes every 72 hours, clock
time.
3. Clean the RO membrane elements with approved cleaners at least quarterly,
depending on feed water quality.
2.13 Pre-filter Cartridge
A 1 micron pre-filter cartridge is factory installed to protect the membrane elements and
valves from particles, which may be in the feed water. To order replacements, see the
Spare Parts List (Technote 109).
A pressure drop across the filter of 8 psi (0.55 bar) or more during operation indicates that
the pre-filter cartridge(s) need changeing. Use only GE approved filters rated at 2 microns
or less. Refer to Technote 109 (Spare Parts List) for pre-filter cartridge replacements. Do
not attempt to clean used pre-filter cartridges.
NOTE: Failure to perform normal preventative maintenance procedures will void
machine warranty.
2.14 Daily Flushing
A manually flush of the E2/EZ2-Series must be done machine daily.
To flush the machine:
NOTE: During flushing procedure, the machine must be running.
STEPS
1. With the machine running, open the concentrate valve 1/2 -3/4 of a turn
(Figure 2.1, Flow Control Center).
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