
INTRODUCTION
1.1
UNPACKING AND HANDLING
The Pure Water 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 in
Section 9.0: DRAWINGS AND
DIAGRAMS
to verify all components for the watermaker are shipped prior to installation. Note some
units will be customized with bulkhead mount “Big White” filters. Also when ins
pecting delivery, check
for either manual or automatic flush systems as shown on your order. See figures 2.8 and 2.9. Be sure
to mark and record all hose locations for reference, if disconnection of hoses become necessary.
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)
Minimum raw water inlet pressure
Flooded suction pressure
Maximum raw water inlet pressure*
30 psi
Flush water recommended maximum pressure
35 psi
Design RO element pressure
800 psi
Maximum RO element pressure
1000 psi
Maximum feedwater chlorine residual
< 0.1 ppm
Cleaning solution pH range
10-11 (Chemical #1), 2-3 (Chemical #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. PWSM800, or PWM2000) 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 be at 77
F (25
C).
(3) Seawater salinity at 32,000 parts per million (ppm) total dissolved solids (TDS).
Variation of conditions (environmental, temperature, and frequency of use) and normal aging of the
membranes will decrease RO 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
10
(6 sec cycle)
30
(12 sec cycle)
Table 1.1 - Nominal Operating Conditions
Summary of Contents for Pure Water Series
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Page 3: ...THE PURE WATER SERIES 400 2000 GPD USER GUIDE REFERENCE MANUAL ...
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Page 63: ...TROUBLESHOOTING Figure 8 0 Troubleshooting Flow Diagram CONTINUED T ...
Page 64: ...DRAWINGS AND DIAGRAMS 38 VMT v JUNE 2008 9 0 DRAWINGS AND DIAGRAMS ...
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Page 124: ...MANUFACTURER S LITERATURE 92 VMT v JUNE 2008 Drawing upgrade as of 4 1 2015 ...
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Page 165: ...708 Series High Pressure Titanium Positive Displacement Pump 26 ...
Page 166: ...708 5 DRAWINGS ...