WET GRO, Инструкция по установке, эксплуатации и обслуживанию

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System Maintenance
Pre-Filters
Check the pre-filter inlet/outlet pressure gauges for pressure drop. If the differential pressure increases by
more than 10 PSI (0.7 Bar) from the ORIGINAL pressure at the time of installation, then either clean or
replace the cartridge.
Activated Carbon
Chlorine will rapidly degrade the performance and life expectancy of the RO membranes. Check for
chlorine breakthrough by testing with a chlorine test kit.
To test for free chlorine residual, fill a test jar with water downstream of the activated carbon tank. If
chlorine is indicated, replace the activated carbon tank immediately. On chlorinated water supplies the
activated carbon should be replaced every 6 MONTHS OR SOONER to prevent chlorine break-through.
Blending Valves
Installations that are using blending valves to mix hot and cold water going to the GRO unit should be
checked for the maximum temperature of the hot water, particularly during the winter. Hot water leaking
by the blending valve could result in leaking RO membrane assembly and fittings. Feed water
temperature should be kept below 100 degree F (37.5 degrees C).
Membranes
Always keep moisture in the membrane pressure vessel, and always keep the ends plugged (be careful
not to cross thread or over tighten, as a cracked end plug may result). If freezing weather conditions
exist, drain water from the RO membrane assembly during shutdown periods and plug the holes.
Pump
DRIVE COUPLING
Check the “V” clamp connecting the motor to the pump at least once per month. Motor and pump
should move as one unit. Any play between the pump and the motor will cause the coupling to wear
excessively, damaging the motor and pump bearings. “Butterfly” wear of the shaft coupling and
resultant bearing failure may not be covered under warranty.
INLET PRESSURE
Minimum desired feed water pressure should be 20 PSI (1.4 Bar) after the prefilter.
OUTLET PRESSURE
Check pump outlet pressure weekly (or more often if use warrants) and adjust or clean as indicated.
Consistent high pressures may indicate blockage or severe membrane fouling.
RO pump outlet pressure should not exceed 200 PSI (GRO 150 – GRO 700). Pressures
in excess of those shown will reduce the useful life of the membranes and system
components and may cause a hazardous situation resulting in injury or death.