Village LW-160 User manual

THE LITTLE WONDER FRAME
LW-160 LW-200
USER GUIDE &
REFERENCE MANUAL
Village Marine Tec.
Fresh Water from the Sea
Corporate Sales Office/Manufacturer
2000 W. 135th St., Gardena, CA 90249
[phone] / [phone] Fax: [phone]
http: www.villagemarine.com
e-mail: [email protected]
FACTORY SHOWROOM AND SERVICE FACILITIES
SAN DIEGO, CALIFORNIA FT. LAUDERDALE, FLORIDA WEST PALM BEACH, FLORIDA
2820 Shelter Island Drive 802 S.E. 17TH Street Causeway 155 Blue Heron Blvd.
San Diego, CA 92106 Ft. Lauderdale, FL 33316 Riviera Beach, FL 33404
[phone] / [phone] [phone] / [phone] [phone] / [phone]
Fax: [phone] Fax: [phone] Fax: [phone]
SEATTLE, WASHINGTON PORTSMOUTH, VIRGINIA HONOLULU, HAWAII
1540 N.W. 46TH Street 100 Seventh Street, Suite 102 296 Mokauea Street, Suite 101
Seattle, WA 98107 Portsmouth, VA 23704 Honolulu, HI 96819
[phone] / [phone] [phone] / [phone] [phone] / [phone]
Fax: [phone] Fax: [phone] Fax: [phone]

TABLE OF CONTENTS
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1.0 INTRODUCTION 1
1.1 UNPACKING AND HANDLING 2
1.2 PERFORMANCE SPECIFICATIONS 2
1.3 ENVIROMENTAL REQUIREMENTS 2
1.4 CONSUMABLES 3
1.5 MAINTENANCE EQUIPMENT 3
2.0 TO INSTALL THE LITTLE WONDER FRAME 160 OR 200 4
2.1ALOCATION AND MOUNTING 4
2.1BTO CONNECT PLUMBING 4
2.1CTO CONNECT THE ELECTRICAL 7
3.0 GENERAL THEORY OF OPERATION 8
3.1 REVERSE OSMOSIS THEORY 8
3.2 APPLICATION OF REVERSE OSMOSIS 8
3.3 PRODUCT WATER QUALITY STANDARDS 9
3.4 FACTORS AFFECTING PERMEATE PRODUCTION 10
3.4ATEMPERATURE CORRECTION FACTOR 11
4.0 OPERATION 12
4.1ATO START THE LITTLE WONDER FRAME UNIT 12
4.1BTO SHUT DOWN THE UNIT 13
5.0 MAINTENANCE 14
FRESHWATER FLUSH / SHORT TERM STORAGE 14
5.1 TO FLUSH THE LITTLE WONDER FRAME UNIT 15
5.2 MEMBRANE CLEANING 15
5.3 CLEANING CHEMICALS 15
5.4 WHEN TO CLEAN 16
STEPS FOR CLEANING CHEMICALS #1, #2, AND #3 (CARTRIDGE FORM) 17

TABLE OF CONTENTS
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5.5 OIL CHANGE PROCEDURE 18
6.0 MEMBRANE REPLACEMENT 20
6.1 PRESSURE VESSEL DISASSEMBLY 20
6.2 PRESSURE VESSEL ASSEMBLY 21
7.0 FREEZE PROTECTION 22
8.0 TROUBLESHOOTING 24
9.0 PLUMBING DIAGRAMS 25
10.0 PARTS REFERENCE 26
11.0 MANUFACTURER’S LITERATURE 27

SYSTEM START UP LOG
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Village Marine Tec.
Fresh Water from the Sea
SYSTEM START UP LOG
SYSTEM INFORMATION:
MODEL NUMBER:
SERIAL NUMBER:
DATE OF PURCHASE:
PURCHASED FROM:
INSTALLATION DATE:
START UP PERFORMANCE READINGS:
MEASURE AFTER 3 AND 24 HOURS OR PRESSURIZED TIME IN SIMILAR CONDITIONS
3 Hours 24 Hours
FEED WATER TEMPERATURE:
FEED WATER SALINITY (IF KNOWN):
BATTERY VOLTAGE:
VOLTAGE AT UNIT:
AVERAGE AMP DRAW (IF KNOWN):
OPERATING PRESSURE:
PRODUCT WATER FLOW: (GPH)(GPH)
REJECT WATER FLOW (IF KNOWN): (GPH)(GPH)
PRODUCT WATER QUALITY (IF KNOWN): (ppm)(ppm)

INTRODUCTION
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VMT-v. JUNE 2008
1.0 INTRODUCTION
SYSTEM DESCRIPTION
Village Marine Tec’s (VMT) Little Wonder watermakers are well-engineered reverse osmosis (RO) system, designed
and built for simple operations and maintenance for the cruising sailor, or sport fisherman, or where space is at a
premium. These 12/24 Volts DC desalination systems will produce seven to eight gallons per hour (GPH) of
freshwater from the sea (gallon production will vary based upon water temperature, salinity, and model of the RO
system).
The Little Wonder unit produces water, meeting or surpassing drinking water guidelines with seawater salt
concentrations as high as 32,000 parts per million (ppm).
HOW TO USE YOUR MANUAL
This User Guide & Reference Manual contains important information about the safe operation and maintenance of
your Little Wonder Vertical units.
We advise you to please read through the entire User Guide & Reference Manual carefully to ensure you familiarize
yourself with the operation of your RO system and follow the recommendations within the manual, to help make your
water producing experiences trouble-free and enjoyable.
SAFETY WARNINGS
Throughout this User Guide & Reference Manual you will see many important statements or labels indicated on the
product with the following words:
Indicates a strong possibility of severe personal injury or death if
warning instructions are ignored.
Indicates hazards or unsafe practices of product may cause
minor personal injury or may cause property damage.
NOTE:Text specifies useful information.

INTRODUCTION
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1.1 UNPACKING AND HANDLING
The Little Wonder reverse osmosis units are shipped pre-assembled. There are no special instructions
towards unpacking and handling of the watermaker system. Inspect the RO unit to verify it was not
damaged in transit. Also, please refer to the plumbing diagram to verify all components for the
watermaker are shipped prior to installation.
DO NOT EXPOSE THE RO UNIT TO FREEZING TEMPERATURES WITHOUT PROPER STEPS TO
TREAT THE RO UNIT FOR SUB-FREEZING TEMPERATURES.
1.2 PERFORMANCE SPECIFICATIONS
Parameter Specification
Raw water temperature (minimum) 33°F (1°C)
Raw water temperature (nominal) 77°F (25°C)
Raw water temperature (maximum) 113°F (45°C)
Min. raw water inlet pressure Flooded suction pressure
Max. raw water inlet pressure* 30 psi
Flush water recommended max. pressure* 35 psi
Design RO element pressure 800 psi
Max. RO element pressure 1000 psi
Max. feedwater chlorine residual < 0.1 ppm
Cleaning solution pH range 10-11 (chem. 1), 2-3 (chem. 2)
Membrane type Thin film composite
Table 1.0 -Performance Characteristics
*For inlet pressure greater than recommended limits, install pressure regulator.
NOTE:REGARDING WATER PRODUCTION:
The RO series number (i.e. LW160, LWM350, or LWV 200) refers to gallons per day (GPD) production
produced with new membranes at design optimum conditions.
To achieve optimum production:
(1) The feed flow must be unrestricted (positive water pressure at the inlet to high pressure pump).
(2) Seawater temperature at 77°F (25°C).
(3) Seawater salinity at 32,000 parts per million (ppm) total dissolved solids (TDS).
(4) Direct current (DC) units should be at charging voltage (13.8 volts for a 12 volt system) and wire
size should be 6 gauge.
Variation of conditions (environmental, temperature, and frequency of use) and normal aging of
membranes will decrease production. Normal membrane fouling will be partially recovered by chemical
cleaning, but 100% recovery should not be expected. Production rates from membrane to membrane
can vary +15%.
1.3 ENVIROMENTAL REQUIREMENTS
Parameter Specifications
List (Permanent):
Trim (Fore and Aft):
Pitch:
Roll:
15°
+ 30°
6108(6 sec cycle)
6308(12 sec cycle)
Table 1.1 -Nominal Operating Conditions

Village Marine Tec.
Freshwater From the Sea
Little Wonder Frame
Plumbing Diagram
2008