Specifications

23G-Series RO System
3024270 Rev G 60 14Oct13
CAUTION:
Do not operate the machine with more than 30% additional concentrate
flow without prior approval from Mar Cor Purification. Operation above
this flow rate may damage the pump and motor.
2. Use the AUTO-ON commands in the Timer Presets Menu (03) of
the ECM-100, to flush the machine automatically during extended
shutdown periods (over 4 hours). If using the AUTO-ON command,
the machine must be in the AUTO mode. The AUTO-ONACTIVE
LED will illuminate when the AUTO-ON period and duration timers
are set above zero.
5.8 Step-Wise Cleaning
NOTE:
Mar Cor Purification recommends sanitizing your machine after cleaning.
Foulants such as minerals, silt, and organic substances may collect on the
membrane element surface and cause the membrane element to foul and
diminish in its function. Many of these foulants are prevented by proper
selection of pre-treatment equipment, while others are treatable with more
sophisticated designs. Regardless of the foulant, it is essential to clean the
membranes promptly once cleaning is indicated. The longer a foulant is
allowed to remain in contact with the membrane element, the more difficult
it will be to remove.
Routine cleaning of the membrane elements in conjunction with regular
sanitizing and flushing will keep bacteria counts at a minimum and
membrane element performance at its best. Cleaning removes the silt,
organic, and mineral deposits that collect on the membrane surface, which
if left untreated, encourage bacteria growth. It will eventually impair the
membrane elements’ ability to perform.
There are a variety of indications for cleaning membranes. The most
common is a reduced product flow rate. Remember that a reduction in
inlet water temperature can also result in a reduced flow rate. Refer to the
“Temperature Correction Factor” (Technote 113) to determine the
reduction in flow that can be attributed to reduced water temperature.
Clean the membranes whenever the temperature compensated flow rate
drops by 10%. A loss in the membrane performance (percent rejection) or
increase in TDS of the product water may also be an indication to clean
the membranes. Observation of the decrease in either permeate flow rate
or salt rejection, or an increased pressure drop across the machine also
indicates when cleaning is required. A good preventative maintenance
practice is to clean the membranes every 30 - 60 days, and more often if
needed.