14
Spectrum
TM
Operation & Maintenance
DO:
• Change the cartridge filters regularly
• Monitor the system and keep a daily log
• Run the system as much as possible on a continuous basis
• Adjust the system recovery to the recommended value
• Always feed the pump with filtered water
DON’T:
• Permit chlorine to enter or be present in the feed water
• Shut down the system for extended periods
• Close the throttle valve completely
• Operate the system with insufficient feed flow
• Operate the pump dry
The reverse osmosis process causes the concentration of impurities. The impurities may precipitate (come
out of solution) when their concentration reaches saturation levels.
Check the feed water chemistry and pre-treat the water and/or reduce the system’s recovery as required.
If necessary consult the local dealer or distributor.
Pre-filter Pressure Gauges
These gauges measure the feed water pressure when it enters and exits the pre-filter. A pressure differential
of 0.68 - 1 bar or more on the pressure gauge indicates the pre-filter requires servicing. For example, if the
inlet pressure is 2.75 bar the filter should be changed when the outlet pressure is 2 bar or below.
Permeate (product) Flow Meter and Concentrate (waste) flow meter
These flow meters indicate the flow rates of the permeate and concentrate water. The measurements, when
added together, also indicate the feed water flow rate or (total flow rate); if the system is not equipped with
a concentrate recycle valve.
NOTE:
Precipitation can scale or foul membranes and must be prevented.
NOTE:
Excessive recycling may cause premature fouling /scaling of the membrane elements.
Low Pressure Switch
The low pressure switch shuts off the system when the feed water pressure drops below 1 bar, preventing
damage to the pump. The system restarts automatically when there is a constant pressure of 2.4 bar or more.
NOTE:
If you notice the pressure fluctuating and the system cycling off and on, turn the
system off and ensure that proper feed flow and pressure are available to the system.
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