US Water Systems L1-200, Руководство пользователя

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18 REVISION 1.0, 1-19-15
OPERATION AND MAINTENANCE
The reverse osmosis process causes the concentration of impurities. The impurities
may precipitate (come out of solution) when their concentration reaches saturation
levels.
NOTE: PRECIPITATION CAN SCALE OR FOUL MEMBRANES AND MUST BE PRE-
VENTED.
1. Periodically observe the quality and quantity of product water from the system.
NOTE: CHECK THE FEED WATER PRESSURE GOING INTO THE REVERSE OSMOSIS
MEMBRANE, A SIGNIFICANT DROP IN PRESSURE COULD INDICATE A FOULED
PRE-FILTER.
2. A 20% increase in TDS when checking the permeate water indicates possible membrane damage,
and the membrane may need to be replaced.
3. It is suggested that a hand held TDS digital meter is used once per week to monitor the water
quality.
NOTE: IF THE TDS OF THE FEED WATER EXCEEDS 1000 PPM, A HIGHER FLOW RATE
FLOW RESTRICTOR SHOULD BE USED TO EXTEND THE MEMBRANE LIFE.
4. It is important to maintain and/or replace the carbon block regularly since the Thin Film Compo-
site membranes are chlorine sensitive. Irreversible damage will occur with any chlorine present
in the feed water. For additional information, please review the manufacturer’s membrane specifi-
cation sheets.
5. The product line has a one way check valve installed. The check valve should be checked
regularly and replaced if it is not properly sealing.
6. Keep the feed water temperature above 4°C (36°F).
NOTE: EXTREMELY COLD FEED WATER WILL LOWER THE PRODUCT WATER
OUTPUT AND INCREASE PUMP PRESSURE.