Village LW-160, User Manual And Reference Manual

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MAINTENANCE
17
VMT- v. JUNE 2008
STEPS FOR CLEANING CHEMICALS #1, #2, AND #3 (CARTRIDGE FORM)
NOTE: For resuming normal RO operation (unpreserving or “unpickling”), install a FIVE MICRON filter
into the prefilter housing. Begin system Start Up Procedures by referring to Section 4.0.
NOTE: When single use chemical cartridges are not available, the LW watermaker can be treated with
powdered VMT cleaners. In step 3 above, substitute 10 tablespoons of cleaner #1 or 10
tablespoons of cleaner #2 or 3 tablespoons of preservative #3. Leave the 5 micron filter in place,
and dissolve the powder in enough water to fill the filter housing.
Step 1. Step 1.
Step 2. Remove 5 micron prefilter from housing. Step 2. Remove 5 micron prefilter from housing.
Step 3. Step 3.
Step 4. Step 4.
Step 5. Step 5.
Step 6. Step 6.
Step 7. Step 7.
Step 8. Step 8.
Step 9. Step 9.
Step 10. After 5 minutes running, close the bypass valve to
bring the unit up to pressure. Record production
flow rate before and after cleaning to determine
effectiveness.
To use Cleaning Chemical #2 (Red Stripe) return to
Step 1 to follow steps 1 to 8 with the #2 cartridge.
Run the unit with seawater feed for 5 minutes to
clear out cleaner #1.
Unit is now preserved and can be left as is for 6
months in temperate climates or 4 months in the
tropics. After that, flush unit and represerve.
Make sure the High Pressure Bypass Valve is in
Cleaning position.
Prior to preserving the RO, complete a freshwater
flush to the system.
(REFER TO SECTION 5.1)
Place preservation filter Chemical # 3 (Green
Stripe) into prefilter housing and fill with water.
Screw housing back into place.
Single Use Cleaning Cartridges:
Chemical #1 and Chemical #2
Prior to cleaning the RO, complete a freshwater
flush to the system.
(REFER TO SECTION 5.1)
Single Use Preservative Cartridge:
Chemical #3
Place cleaning filter Chemical # 1 (Blue Stripe) into
prefilter housing and fill with water. Screw housing
back into place.
Make sure the High Pressure Bypass Valve is in
the Cleaning position.
Turn Unit OFF after running for 20 minutes.
Leave all valves in position they are now in.
Turn cleaning valve to clean/recirculate position.
Turn Unit OFF after running for 30 minutes;
Turn cleaning valve to clean/recirculate position.
Start RO unit and let unit run for 20 minutes, in the
recircluate mode. Start RO unit and let unit run for 30 minutes, in the
recircluate mode.
Place cleaning valve to overboard position;
Remove the cleaning chemical cartridge from the
prefilter housing;
Install a 5 micron prefilter cartridge in housing and
resecure housing place.