Installation and Service Manual – L Series Reverse Osmosis System
Systems and Components
Membranes
,
Filters
,
Chemicals
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Page 16
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10. Adjust the Throttle Valve (CV-1) to get the specified permeate flow (if
applicable).
11. Adjust the Control Valve (CV-2) and Recycle Valve (CV-3) until the
specified permeate flow and recycle flow are obtained. It may be
necessary to readjust the Throttle Valve (CV-1).
Caution:
Do not exceed the rated permeate flow or the rated recycle flow – otherwise
membranes may be irreversibly fouled.
Caution:
Do not operate the system with the control valve closed.
Note:
By setting the feed pressure as low as possible to meet the application requirement, the service
life of the pump and RO elements will be optimized. The system should be run continuously when
possible, rather than go through frequent start/stop cycles.
12. Run unit and check again for leaks, repair prior to placing unit in service.
13. Test the operation of the pressure switch by slowly closing the inlet water supply valve. The unit should shut off
after a short 5 second time delay.
Caution:
If the unit does not shut off, turn the unit OFF immediately to prevent pump damage.
Disconnect the electrical power source, then check the wiring and replace or adjust the switch if
necessary. (Pressure switch adjustment instructions in maintenance on page 24.)
14. Once all the desired flows are set, allow the system to run for approximately 30 minutes. Then record the
performance information using the system operation data log on page 18. The values recorded at startup will be
important for determining system performance at a later date.
Operating DO’s & DON’Ts
DO:
1. Change the cartridge filters regularly
2. Monitor the system and keep a log daily
3. Run the system, as much as possible, on a continuous basis.
4. Adjust the system recovery to the recommended value
DON’T
1. Permit chlorine in the feed water.
2. Shut down the system for extended periods.
3. Close the throttle valve completely.
4. Operate the system with insufficient feed flow.
