Parker AQUA DUO - A455C User manual

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AQUA DUO –A455C
(2800 –6800 GPD)
Technical Manual
Parker –Water Purification
2630 E. El Presidio Street
Carson, CA 90810
www.parker.com/waterpurification

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REVISION HISTORY
REV
DATE
DESCRIPTION
AUTHOR
-
March, 2022
INITIAL RELEASE
OM
A
October, 2022
DIAGRAM AND DRAWING
UPDATES
OM & JT
The following are the types of flags used in this technical manual. They designate safety related items and
important operational instructions and should be given special attention when they appear in the text:
Text formatted in this manner concerns an operating procedure or practice that, if not
strictly observed, can result in injury to personnel or loss of life.
Text formatted in this manner concerns an operating procedure or practice that, if not
strictly observed, can result in damage to or destruction of equipment.
Text formatted in this manner concerns an operating procedure or condition
that warrants special attention.
WARNING
CAUTION
NOTE

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TABLE OF CONTENTS
Contents
1.0 SYSTEM DESCRIPTION:.................................................................................. 5
1.1. SYSTEM SPECIFICATIONS:......................................................................5
1.2. UTILITY REQUIREMENTS .........................................................................5
1.3. RECOMMENDED SPARE PARTS LIST.....................................................6
1.4. SPECIAL TOOLS LIST................................................................................6
1.5. PHYSICAL CHARACTERISTICS ………………………………………...…….7
2.0 PRE-INSTALLATION NOTES........................................................................... 9
2.1 PRECAUTIONS...........................................................................................9
2.2 RO SYSTEM LOCATION............................................................................9
2.3 INSTALLING THE SYSTEM...................................................................... 10
2.4 COMPONENTS......................................................................................... 12
2.5 MOUNTING COMPONENTS ....................................................................19
2.6 ELECTRICAL CONNECTIONS................................................................. 31
2.7 PLUMBING CONNECTIONS .................................................................... 31
3.0 THEORY OF OPERATION AND GENERAL DESCRIPTION ......................... 35
3.1 REVERSE OSMOSIS THEORY................................................................ 35
3.2 PRODUCT WATER QUALITY STANDARDS............................................36
3.3 FACTORS AFFECTING PERMEATE PRODUCTION............................... 37
3.4 TEMPERATURE CORRECTION FACTOR...............................................38
3.5 CONTROLS AND INSTRUMENTATION................................................... 39
3.6 RO FILTRATION SYSTEM DESCRIPTION.............................................. 39
3.7 REVERSE OSMOSIS SYSTEM................................................................ 39
3.8 PRODUCT MONITORING SYSTEM......................................................... 40
3.9 FRESH WATER FLUSH SYSTEM............................................................ 40
3.10 HUMAN-MACHINE INTERFACE (HMI)..................................................... 40
4.0 COMMISSIONING ........................................................................................... 41
4.1 COMMISSIONING CHECKLIST................................................................ 41
4.2 Pressure Changes..................................................................................... 44
5.0 OPERATIONS ................................................................................................. 48

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5.1 System Operation Notes............................................................................ 48
5.2 Operation Cautions.................................................................................... 48
5.3 Startup Procedure ..................................................................................... 49
5.4 High/Low Pressure Fault Lamp Explanation.............................................. 49
5.5 Controller Operations ................................................................................ 50
6.0 MAINTENANCE & REPAIR............................................................................. 53
6.1 GENERAL ................................................................................................. 53
6.2 MICRON FILTER ELEMENT REPLACEMENT.........................................53
7.0 TROUBLESHOOTING..................................................................................... 54
7.1 System Shuts Down During Operation...................................................... 54
7.2 Product Water Flow and Product Water Quality........................................56
7.3 3-way Product Water Diversion Valve Abnormalities................................. 58
7.4Booster Pump Abnormalities.....................................................................60

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1.0 SYSTEM DESCRIPTION:
1.1. SYSTEM SPECIFICATIONS:
PART
NUMBER
VOLTAGE
50/60 HZ - 1/3PH
PRODUCT
CAPACITY
GPD/LPD
PRODUCT
CAPACITY
GPH/LPH
DRY
WEIGHT
WET
WEIGHT
MEMBRANE
P/N
A455C-2800
110/220/380/440
AC
2800 GPD
(10599 LPD)
117 GPH
(441 LPH)
570 lbs.
(258 kg)
591 lbs.
(269 kg)
4x
2724011333
A455C-3600
110/220/380/440
AC
3600 GPD
(13627LPD)
150 GPH
(568 GPH)
601 lbs.
(272 kg)
591 lbs.
(269 kg)
4x
2724011433
A455C-4400
110/220/380/440
AC
4400 GPD
(19684 LPD)
183 GPH
(694 GPH)
601 lbs.
(272 kg)
623 lbs.
(283 kg)
6x
2724011333
A455C-5200
110/220/380/440
AC
5200 GPD
(19680 LPD)
217 GPH
(820 GPH)
650 lbs.
(296 kg)
676 lbs.
(307 kg)
6x
2724011433
A455C-5800
110/220/380/440
AC
5800 GPD
(21198LPD)
241 GPH
(883 GPH)
700 lbs.
(319 kg)
728 lbs.
(331 kg)
8x
2724011333
A455C-6800
110/220/380/440
AC
6800 GPD
(25741LPD)
283 GPH
(1073 GPH)
750 lbs.
(342 kg)
780 lbs.
(355 kg)
8x
2724011433
Table 1.0 - Performance Specification
*Production May Vary +-20%|GPD: Gallons per Day, LPD: Liters per day, GPH: Gallons per Hour, & LPH:
Liters per Hour
Parameter for All Aqua Duo Systems
Specification
Sea Water Feed Inlet water quality
Open Ocean
Sea Water Feed TDS:
Less than 42,000 ppm TDS
Product Water TDS:
<500 PPM TDS, WHO standard
Seawater Temperature Range:
0 °C to 32 °C (32-90°F)
Design Product Water Pressure:
2.07 BAR (30 PSI)
Max. Operating Pressure:
70 BAR (1000 PSI)
Table 1.1: Parameter Specification
1.2. UTILITY REQUIREMENTS
TIE
DESCRIPTION
CONNECTION
1001
FEED WATER INLET - UNIT A
3/4"NYLON PVC HOSE BARB
1002
PRODUCT WATER OUTLET –UNIT A
3/8" PP TUBE CONNECT
1003
REJECT OUTLET
3/4" NYLON PVC HOSE BARB
1004
FRESH WATER INLET –UNIT A
3/8" PP TUBE CONNECT
1005
FEED WATER INLET - UNIT B
3/4" NYLON PVC HOSE BARB
1006
PRODUCT WATER OUTLET- UNIT B
3/8" PP TUBE CONNECT
1007
FRESH WATER INLET- UNIT B
3/8" PP TUBE CONNECT
1008
MEDIA FILTER REJECT OUTLET
3/4"NYLON PVC HOSE BARB
1009

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TIE
DESCRIPTION
CONNECTION
1010
1011
1012
Table 1.2: TIE CONNECTIONS
System
Single Unit Operation of
HP Pump
[Horsepower/Kilowatts]
Single Unit Operation of
Booster Pump
[Horsepower/Kilowatts]
A455C-2800
2.5 HP / 1.84 kW
0.5 HP / 0.37 kW
A455C-3600
2.5 HP / 1.84 kW
2 HP / 1.47 kW
A455C-4400
5 HP / 3.68 kW
2 HP / 1.47 kW
A455C-5200
5 HP / 3.68 kW
2 HP / 1.47 kW
A455C-5800
5 HP / 3.68 kW
2 HP / 1.47 kW
A455C-6800
5 HP / 3.68 kW
2 HP / 1.47 kW
Table 1.3: Pump Horsepower Requirement
NOTE
System contains two units. Operating both units simultaneously will require double the
Horsepower/Kilowattage.
1.3. RECOMMENDED SPARE PARTS LIST
Table 1.4: Recommended Spare Parts
1.4. SPECIAL TOOLS LIST
Table 1.5: Special Tools
Spare Parts and Special Tools
Description
Part Number
Filter, 32.5 Ft2, 5-Micron
0801063357
Filter, 32.5 Ft2, 20-Micron
0801133257
Carbon Flushing Filter
33-0311
Filter, AIR/OIL & WATER SERPARTOR
08020723KD
Vessel Membrane for 2800, 4400, & 5800 GPD Systems
2724011333
Vessel Membrane for 3600, 5200, & 6800 GPD Systems
2724011333
SPECIAL TOOLS
Part No.
Solution, Calibration, 30,000 PPM
90-1301
Meter, Ultra, 4p, TDS
3131420156

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1.5. PHYSICAL CHARACTERISTICS: INCHES [MILIMETER]
Figure 1.0: 2800-3600 GPD RO System Dimensions
Figure 1.1: 4400 & 5800 GPD RO System Dimensions

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Figure 1.2: 5200 & 6800 GPD RO System Dimensions
Figure 1.3: Mounting and Lifting lugs Dimensions of RO System

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2.0 PRE-INSTALLATION NOTES
2.1 PRECAUTIONS
Reverse Osmosis (RO) System storage prior to uncrating:
CAUTION
DO NOT store in direct sunlight.
DO NOT store above 103 degrees F (39 degrees C).
DO NOT freeze.
CAUTION
If the RO system has been shipped new with Reverse Osmosis Membrane Elements installed,
the System must be commissioned within 3 months. This is to avoid drying out or biological
fouling of the RO membranes.
2.2 RO SYSTEM LOCATION
The RO unit should be installed in a dry, sheltered location protected from direct weather.
Some type of drainage should be provided beneath the RO unit to allow standing water to
drain when performing maintenance or repair.
The following two diagrams that show the RO System located relative to the seawater level. The
first shows the RO System installation below water line and the second shows the RO System
installation above water line.
Figure 2.1 –RO Below Water Line

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Figure 2.2: RO System Above Water Line
2.3 INSTALLING THE SYSTEM
Since every installation is unique, the mounting instructions are provided for guidance
only. It is recommended that you use your own discretion as to the exact method of
mounting and placement of any mounting bolts.
1) Mount the RO unit securely. Secure each skid in place using vibration isolators as
required. Follow the maintenance envelope provided in the General Arrangement
drawing.
CAUTION
All mounting surfaces must be flat to avoid warping of brackets and frames. Grind flat or
use of appropriate shims on uneven surfaces to ensure that mounting of the system
components does not cause bending or warping. Any damage caused by attaching the
system or its components to an uneven surface is attributed to improper installation, is
the liability of the installer, and is not covered by the Parker Hannifin warranty.
2) Make the following plumbing connections to the RO unit's piping interfaces provided on
the General Arrangement drawing.
CAUTION
Inlet and discharge interconnecting lines must be constructed of a NON-FERROUS
material. Examples of some suitable materials are PVC, copper-nickel, 316 stainless steel
pipe or a reinforced non-collapsing hose. Ferrous piping produces rust that will
irreversibly foul the membrane and void the RO unit warranty.
a) Connect the sea water supply to a clean seawater source using a flexible
connection to the unit.

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CAUTION
Avoid connecting the inlet piping to any water line that services any other piece of
equipment. Air could be drawn through the RO unit causing damage to the RO unit's
pumps. Any air suction leaks coming into the system feed line may cause the system to
shut down due to low feed pressure. If possible, plumb the feed line at the bottom of the
Sea Chest. This ensures an uninterrupted supply of air free seawater.
b) Connect the reject discharge (concentrate flow), to an unobstructed line using a
flexible connection. The reject should be discharged overboard above the
waterline.
CAUTION
The use of galvanized steel for product piping should be avoided as small amounts of rust may
form that can be drawn back into the RO when the system is off.
c) Connect the product water discharge using a flexible connection to an unobstructed line
that is connected to the TOP of the product water storage tank. If the storage tank water
is chlorinated, a check valve or air gap should be installed in the product line as a
precaution to prevent chlorine damage of the RO membranes. The air gap is often
accomplished by teeing the product connection to a tank vent or tank fill line of suitable
size.
CAUTION
Exposing the membranes to chlorinated water may cause irreversible damage and will void the RO
unit warranty.
3) Connect the following RO unit's electrical interfaces:
CAUTION
Strictly observe all applicable electrical codes and regulations governing the installation
and wiring of electrical equipment. Never connect the RO unit to a line that services
another electrical device. The RO unit should have its own dedicated power supply and
breaker.
WARNING
DISCONNECT ELECTRICAL POWER TO RO UNIT AND THE POWER SOURCE BEFORE
WORKING ON THE RO UNIT. FAILURE TO DO SO CAN CAUSE SERIOUS INJURY OR
DEATH TO PERSONNEL.
4) Motor rotation. The Booster Pump and the High-Pressure Pump has proper markings to
determine rotation.

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CAUTION
Do not run high-pressure pump without water adequate flow and pressure. High-pressure
pump will be damaged.
5) Connect a suitable ground to the RO unit skid, as determined by the specifics of your
installation.
CAUTION
The pumps may be isolated from the ship’s bonding system because of the protective
coating applied to the pumps and their attached motor. As such, there may be no
continuity between the pumps and the ship’s bonding system. The path of stray current
from the electric motors may be through the Feedwater Line. This is especially true if
the electric motor grounding wire is insufficient. If left unbonded, the pumps become
sacrificial and corrosion by electrolysis takes effect and destroys the pump manifolds,
chambers, and impellers. Such destruction can render these pumps inoperable within
just a few short months. The System Warranty does not cover damage resulting from
electrolysis or improper or inadequate grounding.
2.4 COMPONENTS
All components supplied by Parker, both standard and optional, are described in this section
along with items required or desired by the installer. The location, operation, and purpose of each
major component are briefly explained in this section.
Each component in this manual is given an ID-number or “CALLOUT.”A components list of the
Aqua Duo which details the function and description of each “CALLOUT” can be found in Table 2.1.
In addition, a detailed Piping & Instrumentation Diagram of each system capacity can be found in
Figure 2.4 through 2.7.
NOTE
THE AQUA DUO IS DESIGNED AS A TWO-UNIT REDUNDANCY SYSTEM. BOTH RO UNITS (A & B) ARE
INDEPENDENT OF EACH OTHER AND CAN RUN SIMULTANEOUSLY TOGETHER OR SEPARATELY FROM ONE
ANOTHER.
NOTE
TO PRODUCE THE FULL CAPACITY OF THE SYSTEM, THE TWO UNITS (UNIT A & UNIT B) MUST OPERATE
SIMULTANOUSLY.

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Figure 2.3: Illustration of Unit A and Unit B Controls
Components List:
CALLOUT
DISCRIPTION
FUNCTION
AWPC-1 & AWPC-2
MAIN CONTROLLER
CONTROLS OPERATION OF UNIT
BP-1
BOOSTER PUMP MOTOR ASSY FOR
UNIT A
PROVIDES INLET PRESSURE TO UNIT
BP-2
BOOSTER PUMP MOTOR ASSY FOR
UNIT B
PROVIDES INLET PRESSURE TO UNIT
CF-1
CHARCOAL FILTER FOR UNIT A
REMOVES CHLORINE AND ORGANIC
COMPOUNDS
CF-2
CHARCOAL FILTER FOR UNIT B
REMOVES CHLORINE AND ORGANIC
COMPOUNDS
CV-1
CHECK VALVE TEE- FOR UNIT A
STOPS BACK FLOW OR ALLOWS FLOW IN ONE
DIRECTION
CV-2
CHECK VALVE TEE- FOR UNIT B
STOPS BACK FLOW OR ALLOWS FLOW IN ONE
DIRECTION
FIL-1
5-MICRON PRE-FILTER- FOR UNIT A
REMOVES PARTICLES LARGER THAN 5-
MICRONS
FIL-2
5-MICRON PRE-FILTER- FOR UNIT B
REMOVES PARTICLES LARGER THAN 5-
MICRONS

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Table 2.1: Components Table List
FIL-3
Optional 20-MICRON PRE-FILTER- FOR
UNIT A
REMOVES PARTICLES LARGER THAN 20-
MICRONS
FIL-4
Optional 20-MICRON PRE-FILTER- FOR
UNIT B
REMOVES PARTICLES LARGER THAN 20-
MICRONS
FWF-1
FRESH WATER FILTER- FOR UNIT A
REMOVES CHLORINE
FWF-2
FRESH WATER FILTER- FOR UNIT B
REMOVES CHLORINE
HP-1
HIGH PRESSURE PUMP MOTOR ASSY-
FOR UNIT A
PROVIDES MEMBRANES WITH HIGH
PRESSURE
HP-2
HIGH PRESSURE PUMP MOTOR ASSY-
FOR UNIT B
PROVIDES MEMBRANES WITH HIGH
PRESSURE
M1
HIGH PRESSURE MOTOR FOR UNIT A
ROTATES HIGH PRESSURE PUMP
M2
HIGH PRESSURE MOTOR FOR UNIT B
ROTATES HIGH PRESSURE PUMP
M3
BOOSTER MOTOR FOR UNIT A
ROTATES BOOSTER PUMP
M4
BOOSTER MOTOR FOR UNIT B
ROTATES BOOSTER PUMP
MF-1
MANIFOLD ASSY-1 FOR UNIT A
CONNECTS UNIT PLUMBING AND
INSTRUMENTATION
MF-2
MANIFOLD ASSY-2 FOR UNIT B
CONNECTS UNIT PLUMBING AND
INSTRUMENTATION
MMF-1
MEDIA FILTER ASSY-1 FOR UNIT A
PROVIDES PREFILTERATION FOR LARGE
PARTICLES
MMF-2
MEDIA FILTER ASSY-2 FOR UNIT B
PROVIDES PREFILTERATION FOR LARGE
PARTICLES
OWS-1
AIR/OIL WATER SEPARATOR- FOR
UNIT A
SEPARATES OIL AND AIR FROM THE INLET
WATER
OWS-2
AIR/OIL WATER SEPARATOR- FOR
UNIT B
SEPARATES OIL AND AIR FROM THE INLET
WATER
P1
HIGH PRESSURE PUMP FOR UNIT A
PROVIDES SYSTEM WITH HIGH PRESSURE
P2
HIGH PRESSURE PUMP FOR UNIT B
PROVIDES SYSTEM WITH HIGH PRESSURE
P3
BOOSTER PUMP FOR UNIT A
PROVIDES SYSTEM WITH INLET PRESSURE
P4
BOOSTER PUMP FOR UNIT B
PROVIDES SYSTEM WITH INLET PRESSURE
PG-1-1 & PG-2-1
LOW PRESSURE GAGE
MEASURES INLET PRESSURE WITH RANGE 0-
300 PSI
PG-1-2 & PG-2-2
HIGH PRESSURE GAGE
MEASURES HIGH PRESSURE OF SYSTEM WITH
RANGE OF 0-2000
PV-1 & PV-2
PRESSURE VESSELS (ALL CAPACITIES) -
FOR UNIT A
PRESSURIZES AND STORES MEMBRANES TO
PRODUCE POTABLE WATER
PV-3 & PV-4
PRESSURE VESSELS- FOR UNIT A
(4200-6800 GPD SYSTEMS)
PRESSURIZES AND STORES MEMBRANES TO
PRODUCE POTABLE WATER
PV-5 & PV-6
PRESSURE VESSELS (ALL CAPACITIES) -
FOR UNIT B
PRESSURIZES AND STORES MEMBRANES TO
PRODUCE POTABLE WATER
PV-7 & PV-8
PRESSURE VESSELS- FOR UNIT B
(4200-6800 GPD SYSTEMS)
PRESSURIZES AND STORES MEMBRANES TO
PRODUCE POTABLE WATER
ST-1
STRAINER- FOR UNIT A
STRAINES AWAY THE IMPPURTIES AT THE
INITIAL STAGE
ST-2
STRAINER- FOR UNIT B
STRAINES AWAY THE IMPPURTIES AT THE
INITIAL STAGE
UV-1
OPTIONAL UV STERILIZER- FOR UNIT A
KILLS BIOLOGICAL GROWTH USING UV
RADIATION
UV-2
OPTIONAL UV STERILIZER- FOR UNIT B
KILLS BIOLOGICAL GROWTH USING UV
RADIATION

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Figure 2.4: Piping and Instrumentation Diagram 2800-3600 GPD

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Figure 2.5: Piping and Instrumentation Diagram 2800-3600 GPD (with Optional 20-Micron Prefilter)

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Figure 2.6: Piping and Instrumentation Diagram 4800-6200 GPD

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Figure 2.7: Piping and Instrumentation Diagram 4800-6200 GPD (with Optional 20-Micron Prefilter)

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2.5 MOUNTING COMPONENTS
Mounting and plumbing components Inlet and discharge interconnecting lines should be constructed
of a NON- FERROUS material. Examples of some suitable materials are PVC, copper-nickel, 316 stainless
steel pipe or a reinforced non-collapsing hose.
Figure 2.8: Component & TIE Point Connection Callouts

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Figure 2.9: Tie Point Connection Callouts
1) Sea Strainer (ST-1 & ST-2) - Optional: This filter helps protect the RO system by removing large particles and
debris coming in from seawater. Parker recommends mounting a sea strainer BELOW the vessel’s waterline.
The strainer can be installed before or after the Feed Water Inlet as long as it is below the waterline.
Figure 2.10: Optional Strainer (ST-1 & ST-2) included in Installation KIT
KIT
PART NUMBER
INSTALLATION KIT 2800-6800 GPD
61012126