MODEL 200c & MODEL 380c
MODEL 200c & MODEL 380c
OPERATION AND INSTALLATION
MANUAL
REVISED 7/11/02
Spectra Watermakers Inc.
20 Mariposa Rd San Rafael CA 949104
Phone 415-526-2780 Fax 415- 526-2787
E-mail: [email protected]
www.spectrawatermakers.com
page 1
Introduction
Thank you for choosing a Spectra Watermaker! It is our wish for you to be
completely satisfied with our product. We have inspected and tested all of the components
before shipping, and feel we have produced one of the finest products available.
Your long term satisfaction with this system will depend greatly on how the Spectra
system is installed. The unique performance is obtained not only by our new pressurization
process, but by careful attention to reducing flow restriction, mechanical friction and electrical
resistance. All of this is affected by the final installation, and that is ultimately up to you. By
reading, understanding and following this manual, even if you are not doing the installation
yourself, we are confident you will be happy with your new Spectra system.
With years of experience installing and repairing many different kinds of watermakers,
we have seen nearly everything that should or should not be done. This manual includes the
summation of that knowledge, tailored for Spectra Watermakers.
It is very important that you follow the instructions in this manual. They are designed
to help you "customize" the installation to your boat, while maintaining performance. If any
questions arise, please call us for help immediately. This is a unique product so be careful of
"experts," as they most likely will not have gone through the same learning curve as we have
during the development of the Spectra systems.
If someone else is installing the watermaker for you, review all aspects of the system
with them before the drilling and cutting begins. This will help avoid making mistakes. From
experience, there is a very good chance that a “Professional” installer will not have completely
read the instructions. If you have any doubts, please call us. We will be happy to help tailor
the system to your particular needs. As with any sophisticated device, there may be “bugs” or
minor problems. Please call us for consultation or advice before attempting to repair a new
system. It is very important that the system is completely run tested before accepting the
installation! See “New system start up” in this manual.
"Use it or lose it" really does apply to watermakers, but we prefer "use it or pickle it".
All watermakers will suffer damage if they are run and left without storage treatment or
"pickling". We have found that if the pickling and cleaning processes are made easy, there is a
higher probability of it happening. This is why we have included the 3 way service valves in
the Installation Kit. Even though the system can work without them, they are necessary for the
proper servicing of your system.
In conclusion, having an adequate and reliable watermaker can improve the quality of
life on board more than almost any other piece of equipment. It is our sincere desire that you
will be able to take full advantage of your new Spectra Watermaker, confirming that you
have indeed made the best choice! And don’t forget to tell all your friends!
Thank you from all of us at Spectra Watermakers.
page 2
Table of Contents
System and Start-Up Log
Shipping and Shopping Lists
Features
Specifications Model 200c
Specifications Model 380c
Component Description
Operating Procedures
Shutdown Procedures
Maintenance
Membrane Cleaning Procedures
Membrane Replacement
Installation Basics
General Plumbing
Component Placement
Clark Pump Diagram
Component Dimensions
Optional Component Dimensions
Plumbing Diagram (Spectra 200c)
Plumbing Diagram (Spectra 380c)
Salinity Control Plumbing Diagram
Automatic Fresh Water Flush System Diagram
Pre-filter Plumbing Diagram
Clark Pump Mounting Diagram
High Pressure Tube Instructions and Diagram
1/4” Tube Fitting Instructions Diagram
Spectra Panel Plumbing
Manual Fresh Water Flush System Diagram
Mounting Templates for Pumps
Mounting Templates for Panels
Electrical
200c & 380c Wiring Diagram
Power Control Module Wiring
Automatic Salinity Control & Flush Wiring
Troubleshooting
Salinity Control Recalibration
Warranty
page 3
page 4
page 5
page 7
page 8
page 9
page 10
page 15
page 18
page 20
page 22
page 24
page 25
page 26
page 28
page 34
page 35
page 36
page 37
page 38
page 39
page 40
page 41
page 42
page 43
page 44
page 45
page 46
page 47
page 48
page 49
page 50
page 51
page 52
page 53
page 56
page 57
System and Start-Up Log
System Information
Model Number
________________
Serial Number
________________
Date Purchased
________________
Purchased From
____________________________
____________________________
____________________________
Installation Date
________________
Start-Up Performance Readings
Measure during operation after 3 and 24 hours of pressurized run time in
similar conditions.
3 hrs
24 hrs
Feed Water Temperature
__________
__________
Voltage at Feed Pump(s)
__________
__________
Amperage Draw
__________
__________
Feed Pressure (psi)
__________
__________
Product Water Flow (gph)
__________
__________
page 4
Shipping List
(1) Operation and Installation Manual
(1) Clark Pump and mounting hardware
(1) Feed Pump and heat sink (model 200c)
(2) Pumps, heat sinks, cooling fan kits, and fittings (Spectra 380c)
(1) Accumulator Tank
(1) Membrane and Housing Assembly with mounts
(10’) High Pressure Tube
(1) Sea Water Strainer
(1) Pre-filter and Bracket
(1) Monitor Panel
(1) Hand Held Salinity Monitor
(1) Installation Kit
(1) SC-1 Storage/Cleaning Chemical & (1) SC-2 Cleaning Chemical
Options
Automatic Salinity Control,
Includes power control module, remote panel, salinity sensor, and reject valve
Automatic Fresh Water Flush System (Adds on to auto salinity control)
Includes a timer in the power control module, a switch in the remote control panel, a charcoal
filter, solenoid valve, check valve, and fittings
Manual Fresh Water Flush System
Includes charcoal filter, flush service valve, and fittings
Service Valve Mounting Bracket
Anodized aluminum bracket for service and manual flush valves
Clark Pump Bulkhead Mounting Bracket
Anodized aluminum pre-drilled bracket
20 micron Pre-filter Kit
Includes filter housing and bracket, 6 filter elements, and fittings
Basic Cruise Kit
Includes six 5-micron filters and 2 SC-1 storage chemical containers
Offshore Kit
Includes Clark pump seals, pump shaft, tools, 2 SC-2 cleaning chemical containers, instructions
Spare Feed Pump
Cooling Fan for 200c Feed Pump
page 5
Shopping List
In addition to the optional installation kit.
Refer to manual for wire size and type of fasteners
Fasteners/Hardware for mounting components to desired surfaces
Marine grade duplex wire, connectors, heat shrink, wire ties and mounts
One 5 gallon plastic container. 2 gallon with an optional flush system
One 15 amp fuse or circuit breaker switch for the Spectra 200c or
Two 15 amp fuses or circuit breakers for the Spectra 380c
One 25 amp fuse or circuit breaker for optional salinity control system
Recommended Tools
Wrench set to 7/8”
Adjustable wrench
3/8” drill, drill index and a hole saw set
Jig saw or coping saw
Screwdrivers
5/16” nut driver for hose clamps
Wire cutter
Wire stripper
Electrical crimping tool for insulated connectors
Heat gun
Soldering iron
page 6
Features
The new Spectra Watermaker systems are designed to meet the needs of a
wide range of cruising yachts. The Spectra 200c is ideal for the small yacht with
limited power, but will easily handle the water needs of medium size yachts. The
Spectra 380c is ideal for the larger sail and motor yachts.
Using the patented Clark Pump and paying careful attention to system
efficiency, the Spectra 200c operates on a fresh water-to-power ratio that
surpasses everything in the marine industry. The system makes an average of 8.3
gallons per hour on 8 amps @ 12.5 vdc, less than 13 watt hours per gallon! That
means that making one gallon of fresh water is like running only a small cabin
light for one hour!
The Spectra 380c with two fan cooled feed pumps produces 16 gallons per
hour using less than 20 amps. Most other components are the same as the 200c.
The system’s modular components allow for easy custom installations.
Component layout can be optimized for efficiency, ease of operation and
maintenance. The system’s feed pump is self priming and can be mounted up to 4
feet above the water line! The rest of the system can go even higher.
The production of fresh water is stable through the system’s normal
operating sea water temperature and salinity range. Only the working pressures
change with the water conditions. A typical leading brand "200 gallon per day"
unit running in 61 degree F water will only make 144 gallons per day. The
Spectra 200c will still be producing 200 gallons per day or more on a fraction of
the power.
Total water flow through the system has been minimized in order to extend
the life of the pre-filter and for energy efficiency, but is within membrane
manufacture’s operating limits.
Pressures are self-regulating, eliminating the need for adjustments, even
when operating in brackish waters. The feed pressure is limited to 125 psi
maximum for the both models The self priming multi-diaphragm feed pump is
all that drives the system. No additional boost pump is needed, or even helpful.
The Spectra 380c’s duplex pump system allows the choice of using one pump for
the same efficiency as the Spectra 200c or both pumps for maximum production.
Each pump includes a small low watt cooling fan.
A 5-micron pre-filter is provided for maximum system life, no extra boost
pump is needed to use this filter.
The system’s noise level is exceptionally low and unobtrusive, especially
compared to other systems of similar capacity. The feed pump has a smooth,
steady sound and almost no vibration, and can be placed almost anywhere on
board.
page 7
Spectra 200c Performance Specifications
Sea water temperature @ 50º F (10º C):
Voltage
12.5v
13.8v
14.4v
Feed flow
1.5 gpm (5.7 lpm)
1.6 gpm (6.0 lpm)
1.7 gpm (6.4 lpm)
Feed pressure
High pressure
76 psi (5.2 bar)
82 psi (5.6 bar)
84 psi (5.7 bar)
650 psi (44.2 bar)
685 psi (46.6 bar)
700 psi (47.6 bar)
Amperage
9.0
9.6
10.0
Product
8.0 gph (30.0 lph)
9.5 gph (35.2 lph)
10.0 gph (37.8 lph)
Sea water temperature @ 77º F (25º C):
Voltage
12.5v
13.8v
14.4v
Feed flow
1.5 gpm (5.7 lpm)
1.6 gpm (6.0 lpm)
1.7 gpm (6.4 lpm)
Feed pressure
High pressure
64 psi (4.3 bar)
68 psi (4.6 bar)
70 psi (4.8 bar)
550 psi (37.4 bar)
570 psi (38.8 bar)
580 psi (39.4 bar)
Amperage
8.0
8.5
8.8
Product
8.3 gph (31.4 lph)
9.3 gph (36.0 lph)
10.0 gph (37.8 lph)
Sea water temperature @ 90º F (32º C):
Voltage
12.5v
13.8v
14.4v
Feed flow
Feed pressure
High pressure
1.5 gpm (5.7 lpm)
1.6 gpm (6.0 lpm)
1.7 gpm (6.4 lpm)
64 psi (4.3 bar)
68 psi (4.6 bar)
70 psi (4.7 bar)
530 psi (36.0 bar)
550 psi (37.4 bar)
560 psi (38.0 bar)
Amperage
7.9
8.4
8.9
Product
8.5 gph (32.2 lph)
9.5 gph (35.9 lph)
10.3 gph (39.0 lph)
Sea water salinity @ 35,000 parts per million TDS
Salt rejection: 99.0% ~99.4% Typical purity test: < 400 mhos, 200 ppm, 99.4% pure
Performance Tolerance +/- 10%
Maximum Operating Temperature 113º F (45 degrees C)
System Specifications
Weights and Dimensions:
Clark Pump
18.0 lbs. (8.18 kg)
Membrane
13.0 lbs. (5.91 kg)
Feed Pump
6.5 lbs. (2.95 kg)
Panel
1.0 lbs. (0.45 kg)
Strainer
5 lbs. (0.23 kg)
Pre-filter
2.5 lbs. (1.14 kg)
Hose & Fittings 3.5 lbs. (1.60 kg)
Total weight
45.0 lbs. (20.46 kg)
Salinity Control System
Power Control Module
27.25" (69.2 cm) L
43.5" (110.5 cm) L
9.25" (23.5 cm) L
5" (12.7 cm) W
3.5" (8.9 cm) W
4.5" (11.4 cm) W
8.25" (21.6 cm) H
6.5" (16.5 cm) D
3.5" (8.9 cm) Dia.
4" (10.2 cm) H
4" (10.2 cm) W
5.5" (14.0 cm) H
3" (7.6 cm) D
5" (12.7 cm) H
2.75" (7.3 cm) D
12" (30.4 cm) H 4.875" (12.4 cm) D
4.0 lbs. (1.8 kg)
9.5” (24.1 cm) L
4.75” (12.0 cm) W
See component dimension drawing on page 35 & 36
page 8
4.75” (12.0 cm) D
Spectra 380c Performance Specifications
Sea water temperature @ 50º (10º C):
Voltage
12.5v
13.8v
14.4v
Feed flow
Feed pressure
High pressure
2.1 gpm (7.9 lpm)
2.3 gpm (8.7 lpm)
2.4 gpm (9.1 lpm)
104 psi (7.0 bar)
110 psi (7.5 bar)
112 psi (7.6 bar)
845 psi (57.5 bar)
880 psi (59.8 bar)
900 psi (61.2 bar)
Amperage
20.0
21.2
21.5
Product
14.0 gph (53.0 lph)
15.0 gph (56.8 lph)
15.5 gph (57.8 lph)
Sea water temperature @ 77º (25º C):
Voltage
12.5v
13.8v
14.4v
Feed flow
Feed pressure
High pressure
2.4 gpm (9.0 lpm)
2.6 gpm (9.8 lpm)
2.7 gpm (10.2 lpm)
92 psi (6.2 bar)
98 psi (6.6 bar)
102 psi (6.9 bar)
670 psi (45.6 bar)
700 psi (47.6 bar)
710 psi (48.3 bar)
Amperage
18.5
19.6
20.0
Product
15.0 gph (56.8 lph)
16.5 gph (62.4 lph)
17.0 gph (64.3 lph)
Sea water temperature @ 90º (32º C):
Voltage
12.5v
13.8v
14.4v
Feed flow
Feed pressure
High pressure
2.4 gpm (9.0 lpm)
2.6 gpm (9.8 lpm)
2.7 gpm (10.2 lpm)
92 psi (6.2 bar)
98 psi (6.6 bar)
100 psi (6.8 bar)
645 psi (43.9 bar)
665 psi (45.2 bar)
675 psi (45.9 bar)
Amperage
18.2
19.1
19.5
Product
15.3 gph (57.9 lph)
17.0 gph (64.3 lph)
17.5 gph (66.2 lph)
Sea water salinity @ 35,000 parts per million TDS
Salt rejection: 99.0% ~99.4% Typical purity test: < 400 mhos, 200 ppm, 99.4% pure
Performance Tolerance +/- 10%
Maximum Operating Temperature 113 degrees F (45 degrees C)
System Specifications
Weights and Dimensions:
Clark Pump
18.0 lbs. (8.18 kg)
Membrane
13.0 lbs. (5.91 kg)
Feed Pumps
14.5 lbs. (6.60 kg)
Panel
1.0 lbs. (0.45 kg)
Strainer
5 lbs. (0.23 kg)
Pre-filter
2.5 lbs. (1.14 kg)
Hose & Fittings 3.5 lbs. (1.60 kg)
Total weight
53.0 lbs. (24.11 kg)
Salinity Control System
Power Control Module
27.25" (69.2 cm) L
43.5" (112.4 cm) L
10.0" (25.4 cm) L
5" (12.7 cm) W
3.5" (8.9 cm) W
4.5" (11.4 cm) W
8.25" (21.6 cm) H
6.5" (16.5 cm)D
3.5" (8.9 cm) Dia.
4" (10.2 cm) H
4" (10.2 cm) W ea.
5.5" (14.0 cm) H
3" (7.6 cm) D
5" (12.7 cm) H
2.75" (7.3 cm) D
12" (30.4 cm) H 4.875" (12.4 cm) D
4.0 lbs. (1.8 kg)
9.5” (24.1 cm) L
4.75” (12.0 cm) W
See component dimension drawings on pages 35 & 36
page 9
4.75” (12.0 cm) D
Component Description
The Clark Pump
This is the heart of the system. The Clark Pump uses two opposing cylinders and
pistons that share a single rod through a center block. A reversing valve, controlled by a pilot
valve that is actuated by the pistons, allows the cylinders to alternate between driving and
pressurizing. Pressurization is achieved by the rod being driven into the other cylinder. As the
rod enters the cylinder, it pushes the piston which circulates the water out through the
membrane and back to the reversing valve. The valve directs the water back into the same
cylinder behind the piston, creating a closed loop. The rod displaces water as it enters the
cylinder, raising the pressure enough for reverse osmosis to occur in the membrane, thus fresh
water equal to the volume of the rod is produced on every stroke. The driving cylinder has feed
pressure pushing on the top of the piston which has ten times the surface area than the end of
the rod under it. The water under the piston (brine) is discharged overboard. This gives the
piston a 10-to-1 advantage over the rod, allowing it to drive the rod into the pressurizing
cylinder. When the piston bottoms out on the center block, it actuates the pilot valve and the
process is instantly reversed. High efficiency is achieved because there is no "back stroke,"
allowing one cylinder to always be under pressure.
The speed of this process is determined by the water flow from the feed pump. The
pump has a nearly constant flow rate at a given voltage so the production of fresh water is
nearly constant, only the pressures change with changes in sea water temperature and salinity.
(see "Membrane" section)
A pressure relief valve and a reset button are incorporated in the Clark Pump to
depressurize the system for priming and service and resetting the reversing valve if the Clark
Pump is stopped with the control valves at dead center. Refer to the Clark Pump diagram on
page 34.
Spectra 200c Feed Pump
The feed pump is the sole driving force in the system. It is a self priming, continuos
duty, multi-diaphragm water pump similar to the pumps used for domestic pressure water
systems. The pump has a flow rate of 1.6 gpm. Feed pressure averages 65 psi, drawing 8
amps @ 12.5 vdc. The feed pressure cut out switch is factory set at 125 psi.
Spectra 380c Dual Feed Pump System
The system is simply two identical self priming, multi-diaphragm, fan cooled, feed
pumps with that are plumbed in parallel. They are individually wired to separate circuits to
allow single or duplex operation. In dual pump mode, the feed flow rate is 2.6 gpm. Feed
pressure averages 95 psi, drawing less than 20 amps per hour @ 12.5 vdc. In single pump
mode, the performance is the same as the Spectra 200c. It is very important that the cooling
fans be operational when both pumps are running. Each pump is drawing almost 10 amps
which will generate too much heat for the cooling fins to dissipate adequately. The feed
pressure cut out switches are are factory set at 125 psi.
page 10
Component Description, cont.
The Reverse Osmosis Membrane
The “R.O.” membrane is where the magic happens. A semi-permeable membrane,
deposited over a capillary layer, is attached and wrapped with a separating layer around a center
catch tube, then encased in fiberglass. The ends of the windings are open, allowing the salt
water to freely pass from end to end. This "membrane element" is enclosed in a high pressure
housing that directs the pressurized salt water to flow through the membrane and lets the
product (fresh) water escape from the center catch tube. Threaded ports are provided for hose
connections in the end caps of the pressure housing.
In the Spectra 200c, approximately 85 gph of high pressure salt water flows across the
membrane as 8.5 gph of fresh water is forced through the membrane and lead by a capillary
layer to the catch tube. The excess salt water flowing out of the membrane is approximately
1/10th saltier and is called “brine.” No salts are collected in the membrane. Membrane
function is affected by sea water temperature and salinity. The warmer or less salty the water,
the easier it is for the fresh water to pass through the membrane. This means that since the
water production of the Spectra systems are nearly constant, warmer water lowers the operating
pressures. The membrane is carefully sized to handle typical sea water temperatures and
salinity, keeping the pressures within limits.
The R.O. membrane theoretically will not let microbes or viruses through with the
product water. This cannot be guaranteed, however, because of the possibility of microscopic
flaws in the membrane or the brine seals in the pressure housing that could let these
contaminates pass through. This is the reason that it is recommended that water made in a
possibly contaminated environment should not be directed into the tank. An optional ultra
violet sterilizer is available for additional protection.
The Sea Water Strainer
The strainer filters the salt water to the feed pump for its protection. It has a cleanable,
fine mesh, stainless steel element. The filter mesh is sized to stop debris that could jam in the
pump’s check valves. A coarse strainer should not be substituted.
The 5 Micron Pre-filter
The pre-filter does the essential job of cleaning the sea water before it gets to the Clark
Pump and R.O. membrane. A replaceable 5 micron pleated fiber filter is used. Filter
maintenance is crucial to the efficiency and life of the system. Operation with 5 micron filtered
sea water is very important. A reverse osmosis system running on 5 micron filtered water will
last much longer than one running on 20 or 30 micron filtered water.
Accumulator Tank
The accumulator tank is an air chamber divided by a rubber diaphragm. The top
chamber is pressurized with air to 10 psi below the expected feed pressure. For example, if the
feed pressure is 70 psi, the tank should be pressurized to 60 psi when the system is off. When
running, feed water will enter the lower chamber until the pressures equalize. It’s function
page 11
resembles a cushion to smooth out the feed pressure spikes when the Clark Pump “shifts.” This
will extend the life of the feed pump and quiet the shift between strokes.
Component Description, cont.
Standard Monitor Panel
The monitor panel gives information on the system’s status. The round gauge shows
feed pressure. This gauge is fluid filled and the air bubble is normal. The vertical flow meter
indicates product water flow in gallons per minute. The flow is read at the widest part of the
indicator ball.
Feed pressure is taken before the pre-filter so a rise in feed pressure can indicate a
clogged pre-filter.
Hand-held salinity monitor
The hand-held salinity monitor is used to test the product water. Readout is in “parts per
million” (ppm). The monitor must be calibrated periodically. Calibration solution is supplied.
Installation Kit
The installation kit includes 50 feet of 5/8”reinforced non-toxic feed and discharge
hoses, 10 feet of 1/2” high pressure tubing, 25 feet of 1/4” plastic product water tubing, special
3-way service valves for service procedures, and all of the required tube fittings, hose fittings,
hose clamps, and standard mounting brackets.
The 3 Way Service Valves (note: The common port is opposite the handle shaft)
The service valves are installed on the feed, brine discharge, and product lines to
provide easy access for proper maintenance. The service hoses should be able to lead to the
five gallon cleaning container. IMPORTANT: The intake and discharge service valves will
close off all the ports if the lever is moved to the middle position, i.e. half way between the
run and service positions. The smaller product service valve cannot close the ports when the
lever is moved half way. This precludes the possibility of blocking the product flow and
causing an over pressure condition that could burst the tube.
Remote Control Panel (optional)
The Spectra remote control panel is integrated with the Spectra power control module,
salinity control system, and the optional automatic flush system. The panel has switches for one
or two feed pumps, a switch to start a flush cycle, and lights that indicate when a feed pump is
on, the flush cycle is in progress, product water is being rejected, and when good product water
and going to the tanks. The remote panel is wired to the power control module.
Power Control Module (optional)
The Spectra power control module is a plastic enclosure that has all of the power relays
and electronics for the feed pumps and the salinity control system. It also can incorporate the
timer for the automatic flush system. The module is connected to the ships power from a single
breaker that is rated for all the system loads. The feed pumps or pumps, salinity and flush
solenoid valves, salinity probe and the remote paned are all wired to the power control module.
page 12
Component Description, cont.
Salinity Control System (optional)
The salinity control is integrated with the remote control system. The system includes
the Spectra power control module, a salinity probe that is mounted in a plastic pipe tee, an
electric three way solenoid valve, fittings, and the Spectra remote control panel. The probe and
diversion valve are plumbed into the product line, The salinity control continuously samples
the purity of the product water. If the probe detects non-potable product, the diversion valve
rejects the product overboard. The reject product water is combined with the brine discharge
after the brine service valve to avoid the possibility of excessive back pressure.
Manual Fresh Water Flush Kit (optional)
An easy way to flush the salt water out of the system for longer intervals between run
times. The manual system uses a 3 way service valve to switch from the sea water inlet to
charcoal filtered fresh water from the ship’s pressure water system, or direct from the tank. The
kit includes a charcoal filter and housing, service valve, and fittings for a typical installation.
Automatic Fresh Water Flush Systems (optional)
An automatic fresh water flush system allows the operator to start a timed flush cycle
from the remote control panel. The automatic system incorporates an electric solenoid valve,
controlled by an adjustable timer, a power relay to run one feed pump, and a check valve.
When the timer is initialized the valve opens to let pressurized charcoal filtered fresh water into
the feed system and one feed pump starts. The check valve prevents the fresh water from going
out the intake thru-hull. The system will run until the salt water is flushed then automatically
shuts down. The timer is adjusted at installation.
Purging the system with nonchlorinated fresh water is advisable every time the system is
shut down, especially in hot climates.
The pressure relief valve does not have to be opened during the flush because the
Spectra’s unique high pressure system will not generate membrane damaging excessive
product flow when brackish or fresh water is introduced into a pressurized system. The length
of time to flush the system depends on the installation. Longer hose runs and extra pre-filters
will lengthen the flush time. The feed pump is run during the flush. The flush time is
determined by recording the time it takes for the feed pressure to drop and then stabilize as the
salt water leaves the membrane, and then adding at least 1 more minute.
Bulkhead Mounting Bracket (optional)
A black anodized pre-drilled aluminum “L” bracket for easy bulkhead mounting of the
Clark Pump.
Service Valve Mounting Bracket (optional)
A black anodized pre-drilled aluminum “L” bracket for mounting the three service
valves and the manual fresh water flush valve in various configurations. Labels are included.
page 13
Component Description, cont.
Second 20-micron Pre-filter Kit (optional)
Add a second 20-micron pre-filter assembly before the 5-micron pre-filter for longer
intervals between filter service. Recommended for systems that will run for long periods of
time and may be operated in turbid sea water conditions. Six 20-micron filters and plumbing
fittings are included.
Ultraviolet Sterilization Filter (optional)
The “UV filter” is placed in the product line between the watermaker and the tank for double
protection of the product water purity.
Basic Cruise Kit (optional)
The kit includes six 5-micron filters and the SC-1 storage and scale cleaning compound
(pickling) for 4-6 storage procedures.
Offshore Kit (optional)
The kit includes all the seals, valve sleeves, tools, and rebuild instructions for the Clark
Pump and the SC-2 alkaline membrane cleaning chemical compound.
Cooling Fan Kit (optional)
The kit includes a low watt DC muffin fan mounted on a plastic shroud that slips over
the cooling fins of the feed pump and instructions.
Spares, Accessories and Supplies
Spare feed pump
Cooling clip for feed pump
SC-1 membrane cleaning and storage compound
SC-2 alkaline membrane cleaning compound
5-micron pre-filters
20-micron pre-filters
Charcoal flush filters
UV light bulbs
page 14
Operating Procedures
New System Start-Up
Caution: Avoid running the system if the vessel is in contaminated water, as in a harbor or canal,
membrane damage and pre-filter clogging may result. Move the vessel to cleaner water. If the
boat cannot be moved and a manual fresh water flush system is installed, run the system with the
flush valve on “flush”and the pressure relief valve open for 30 minutes. Close the pressure relief
valve and continue flushing for another 30 minutes with the product water diverted. With an auto
flush, flush the system 10 times with the pressure relief valve open and 10 times with the pressure
relief valve closed. This will flush the storage solution from the membrane using fresh water from
the tank. Add water to the ships tank if necessary. The system can now be run using a clean
source of sea water in the cleaning container or divert flush water to the container and mix with
aquarium salt. Use the intake, brine, and product service hoses to recirculate the salt water to and
from the container. Salt water must be used to fully test the system.
1. Check battery voltage. A nominal 12.8 vdc to 14.4 vdc should be indicated.
2. Check that the accumulator tank is pre-charged to 60 psi
3. Confirm that the intake thru-hull is open and the strainer is clear.
4. Have the intake and brine discharge service valves in the normal position and the product
service valve in the service position. Direct the product alternate tube to a container or into the
bilge.
5. Open the pressure relief valve 1/2 turn and start the system. On standard systems, the
pump is started using the owner supplied breaker or switch. For systems with the power control
module the pumps are started from the remote control panel. Listen for the feed pump to prime
itself and the Clark Pump start to “shift.” Check the brine discharge for water flow. The
Spectra 380c’s two feed pumps must be primed separately. Start one pump and run until
there is good water flow. Shut down the first pump and start the second pump. After the
second pump is primed, the first pump can be restarted. Check the feed pressure, about 18 psi
should be indicated with one pump running (for both the 200c & 380c systems), and about 35
psi with two pumps running (the 380c system) between “shifts” of the Clark Pump.
6. Check the feed pump high pressure cut out switch set point. For the Spectra 380c do one
pump at a time. With the system primed and running unpressurized, block the brine flow by
moving the brine discharge service valve lever to the center position, half way between the run
and service positions. This will stop the water flow and cause the feed pump to shut off. Check
the feed pressure gauge, it should be holding steady at about 120 to 125 psi. The pressure can
be adjusted by tightening (higher pressure) or loosening (lower pressure) the Allen head set
screw on the pump switch (at the very bottom of the pump head) using a 5/64” Allen wrench.
Repeat for the second pump on the Spectra 380c. Now is a good time to check for leaks in the
feed and brine connections as they are now pressurized to maximum. The membrane housing
end caps have a vent that will show if there is a possible leak between the salt and product
water.
page 15
Operating Procedures, cont.
7. Run the system unpressurized for 30 minutes after start-up to purge the pickling
solution in a new membrane. Make sure that the product water is diverted then close the
pressure relief valve to pressurize the system. Re-check the whole system for leaks, especially
the high pressure hose connections. If any are found, turn off the system and repair them before
continuing. Run the system under pressure for at least one hour while rejecting the product
water. Compare the voltage, feed pressure, water temperature and amp draw to the
specification table. The feed pressure should not spike more than 5 to 10 lbs. over normal when
the Clark Pump shifts and should stay under 85 psi at all times for the Spectra 200c and under
100 psi for the Spectra 380c. The feed pump(s) should never be allowed to cycle their high
pressure cut out switch on and off during the shift. The pump sound should remain almost
steady. If the pressure
spikes are high and/or the pump stops momentarily during the shift, re-check the accumulator
pre-charge and/or check the high pressure cut out set point. If the feed water is around 55 deg.
or colder and/or is extra salty, the 380c’s feed pressure might go high enough to cycle one
pump on and off even when all else is normal. In those conditions only run one feed pump.
8. After one hour, use the hand held salinity meter to check the product water. The salinity
meter reads in parts per million (ppm) of total dissolved solids (TDS). Readings should be
below 500 ppm. Typical readings are 200 ppm - 300 ppm. If the water is good, the product
service valve can now be switched to the run position to direct the flow to the water tank. If an
optional automatic salinity control is installed, watch the “reject” and “good” product water
indicator lights on the remote panel after the product water service valve is turned to the run
position. The green light should go on and the diversion solenoid valve directing the product
water to the tank. Break open the product line to the tank to see if the water is flowing. If not
recheck the solenoid valve plumbing and electrical connections. Check voltage at the feed
pump while the system is running. There should be less than 1/2 volt drop at the feed pump.
9. At 3 & 24 hours of pressurized run time, re-check for leaks. Take note of the system feed
pressure, product flow, feed pump voltage , amp draw, and enter them into the start up log.
Normal Start-Up
1. For normal start-up (meaning the unit has been run within the last 2 days, or has been
flushed with fresh water only), reject the product water by switching the product service valve
to the service position and start the system. It is not necessary to open the pressure relief valve.
The first two pints of product water may be brackish. Wait a few minutes then test the water.
If it is OK, switch the service valve to the run position. If the system has the automatic salinity
control system there is no need to switch the service valve. Any brackish product water will
automatically be diverted to the brine discharge. When the salinity probe detects potable water,
the diversion valve sends it to the tank. Periodically check the product water with the hand-held
salinity probe to test the the automatic system.
2. If air is in the system and the feed pump has lost it’s prime, open the pressure relief valve to
allow the air to purge from the system. The feed pump cannot prime if it’s output is under
pressure. Remember to prime the Spectra 380c’s pumps separately.
3. After starting and pressurizing the unit, check for leaks and wait for it to stabilize, then
check for proper readings (see Specifications pages 8 & 9). Air in the system will cause erratic
shifts and readings until it is purged out of the system. This may take up to 10 minutes.
page 16
Operating Procedures, cont.
Pickled System Start-Up (CAUTION! Open the pressure relief valve before starting)
If the system has biocide in it (also known as “pickling” or storage solution), open the
pressure relief valve 1/2 turn and run the system unpressurized for 30 minutes to purge the
biocide. Direct the product line to a bucket or into the bilge by switching the product service
valve to the service position. Close the pressure relief valve to pressurize the system.
Manually reject the product water. Do not rely on the salinity control system at this point. Run
for another 30 minutes, then test the water by using the hand held salinity probe even if the
automatic salinity control system is installed. If the water is OK, switch the service valve back
to the run position. Pressurizing the system with biocide in it will clog the membrane! The
system will have to be cleaned with SC-2 to restore the membrane.
Unknown Condition Start-Up (CAUTION! Do not start the system yet!)
If the system has been left unpickled for an extended length of time or the history is
unknown, perform this simple test:
Before starting the system, open the pre-filter(s) and inspect its condition. If the filter is
black and smells bad it’s an indicator that the system is fouled. Install a new or cleaned prefilter then open the pressure relief valve and direct the brine discharge into a bucket. Start the
system and watch the brine that first comes out. If the water is discolored and smells bad,
perform an alkaline cleaning on the system before pressurizing (see cleaning instructions).
Pressurizing a system with a fouled membrane will compact the biological growth into the
membrane and make it harder to clean. If the water is only slightly discolored and smells OK,
perform a Pickled System Start Up. Compare the system readings to the performance
specifications and start up log to see if the system is performing properly.
Normal Operation
For best performance and longevity, especially in tropical climates, run the system until
the tanks are full then fresh water flush the system before shut down. In moderate climates,
running the system for an hour twice a day without flushing is acceptable. Always divert the
product water at startup and test the quality after a few minutes. Running the unit during
charging cycles will produce more water because of the higher voltage (see Performance
Specifications). Run both of the 380c’s feed pumps (high output mode) during a charge cycle
and use one pump (efficiency mode) when running direct from the batteries. System readings
should be periodically checked and compared to the start-up log readings and performance
specifications. Look for asymmetrical readings and listen for any change in the sound of the
system that may indicate potential problems.
If the system has the automatic salinity control, manually diverting the product water at
start up is unnecessary, but periodically test the water manually to see if the automatic system is
working properly.
If too much air is introduced into the system when the system is running and
pressurized, the feed pump will cavitate and water flow will stop. This will not damage the
system. Open the pressure relief valve to allow the feed pump to re-prime. Remember to reprime the Spectra 380c’s feed pumps separately.
All reverse osmosis watermakers are affected by water temperature and salinity. The
Spectra operating pressures will rise with colder temperatures and/or higher salinity, and fall
with warmer temperatures and/or lower salinity, but the product flow is effected very little.
page 17
Shutdown Procedures
Biological growth in the membrane when it’s not in use, is the leading cause of
membrane fouling. A warm environment will cause faster growth than a cold environment. The
following procedures assume a warm environment, such as in the tropics. In colder conditions,
the day count could be safely doubled.
Normal Shutdown
Ideal operation is to run system to fill the tanks then fresh water flush. Leaving the system with
salt water in it is acceptable if the system is run again within one day in moderate temperatures
or half a day in hot temperatures. Leaving salt water in the system can invite biological
membrane fouling.
For standard systems, make 5 gallons of water allowing it to flow into the service
container using the product service valve. Do not use tap water or chlorinated water! If
making its own water is not an option, using the ships tank water is OK if there is only product
water in it. Distilled or charcoal filtered chlorinated tank water is also acceptable . Open the
pressure relief valve one half turn. Draw the fresh water through the system using the intake
service valve. Service the pre-filter(s) and strainer, leave them empty and dry if possible.
If a manual fresh water flush system is installed, switch the flush service valve to the
service position while the system is running and pressurized. Watch for the feed pressure to fall
and stabilize, wait 1 minute more and then shut down the system. Return the flush service valve
to the run position. Service the pre-filter(s) and strainer.
If an automatic flush system is installed, stop the system, make sure that the ships
pressure water system is on, and then start the flush cycle. When the system turns itself off,
service the pre-filter(s) and strainer if necessary.
Extended Shutdown, two days - one week
If the system has been properly flushed, it can be left without further treatment up to
three days in warm temperatures and up to one week in moderate temperatures. If there is any
uncertainty that the system may be left for a longer period, do a storage treatment.
Storage Shutdown or "Pickling," one week to one year
The Spectra SC-1 Storage Compound is specially formulated to be used
as a system preservative. Sodium bisulfite or metabisulfite should not be used
as a preservative in the Spectra systems. Sodium bisulfite will attack
materials used in the Spectra systems.
The SC-1 Storage Compound has to be mixed at 1 Spectra container to 3 gallons of fresh
water to have the proper solution. An average of two gallons of water is in the Spectra
system. This water has to be figured in the mixture. For short term storage of less than one
month, 1/3 of a container can be used.
Note that the compound may not dissolve completely.
1. For standard systems, make 5 gallons of water into a clean container using the product
service valve. Do not use tap water or chlorinated water! Distilled or charcoal filtered water is
acceptable if making its own water is not an option. With manual or auto flush see § 2b or c.
Shutdown Procedures, cont.
page 18
2.
a. Open the pressure relief valve one half turn to depressurize the system. Flush the
first 4 gallons through the system using the intake service valve. Leave 1 gallon in the
container. Now mix 1/3-1/2 container of SC-1 into the 1 gallon that is left. Do not let skin,
eyes, or lungs have any contact with the storage chemical.
b. If a manual flush system is installed, a 2 gallon container may be used. Perform a
normal flush, then divert the brine discharge into the container using the discharge service valve
to get the 1 gallon of filtered fresh water needed. Open the pressure relief valve and mix in
1/3-1/2 container of Spectra SC-1.
c. If the automatic flush is installed, a 2 gallon container may be used. Start the flush
cycle. When the system stops, divert the brine discharge into the container and restart the flush
cycle to get the 1 gallon needed. Stop the system by the main power breaker or return the brine
discharge service valve to the run position and let it stop automatically. Open the pressure
relief valve and mix in 1/3-1/2 container of Spectra SC-1.
3. Direct the brine discharge into the container with the discharged service valve. Run the
system, recirculating the solution for 10 minutes to completely mix the chemical and saturate
the membrane. (Check the prime on both feed pumps on a 380c). Light discoloration of the
solution is acceptable. After 10 minutes return the discharge service valve to the run position
and empty the container.
4. Close the intake thru-hull and switch the intake service valve back to the run position. If the
system shares an intake thru-hull, move the intake service valve lever midway between run and
service positions. This will close off both ports and isolate the watermaker.
5. Remove and clean the sea water strainer screen and pre-filter. Reassemble dry.
6. When returning the system to service after pickling, check the intake thru-hull and service
valves, then run unpressurized for at least 30 minutes to purge the system. Discard the product
water for another 30 minutes after pressurizing.
7.
To winterize, Flush 5 gallons of potable water system antifreeze straight through the
system instead of using the normal SC-1 storage procedures. The antifreeze will prevent
biological growth as well as freeze protection.
page 19
Maintenance
The Seawater Strainer
The sea water strainer’s stainless steel element should be inspected, removed and cleaned
as needed. Be careful to ensure that the thru-hull is closed before disassembly and the seal and
element are in place on reassemble. When the system is put into storage, remove, rinse and
reassemble dry to impede corrosion. Check frequently during operation.
The Micron Pre-filter(s) Caution! The final pre-filter must be 5-micron. Do not use
any kind of charcoal elements as pre-filters
The pleated pre-filter(s) will need the most attention. Clogged filters will cause higher
than normal feed pressure readings. A very clogged filter will cause the feed pump(s) to cycle
off and on. The easiest way to service the filter is to first shut off the thru-hull, open the housing,
discard the old filter, remove the O-ring to prevent loss, and clean the housing. Reinstall the
O-ring and reassemble the pre-filter with a new 5-micron filter element in a single filter system
and 20 and 5-micron elements in a duel filter system. Leave dry until the next start-up.
Used pleated elements can be carefully cleaned if they are not too compacted. Do not use
full pressure from a garden hose or scrub with a hard brush on the pleats. Gently spray the
outside with water and then plug one end with your hand, filling from the other end to flush from
the inside. Be careful to not distort the pleats. Another way is to tow them behind the boat until
clean, 4 knots maximum. Slip a line through the filter and tie a stopper knot. Elements that
show any signs of deterioration should be replaced. Check for leaks on the first run after a filter
service. 20-micron filters can be cleaned more often than the 5-micron as they are not as critical.
The Membrane
The membrane needs to be cleaned only when it has lost up to 10% of its capacity due to
fouling. This can be observed through a 10% rise in power consumption in normal conditions.
Excessive discoloration of the storage solution indicates a need for cleaning. The leading cause
of fouling is from biological growth that occurs when the system is left unused without flushing
or pickling. Fouling from mineral scaling can happen under certain sea water conditions, and
from rust. Higher than normal pressures and amp draw for the sea water temperature and salinity
conditions are the main indicators of membrane fouling. Other conditions can cause high
pressure (such as in very cold water). Low product flow is usually due to low voltage or a
clogged pre-filter. Look for all other causes before cleaning the membrane.
There are two types of cleaners: acid and alkaline. The acid cleaner (SC-1) will remove
mineral scaling and kill live microbes and is also used for storage. The alkaline (SC-2) cleaner is
used to remove biological byproducts, oil and dirt particles that get past the pre-filters. If
membrane performance is reduced and has not been pickled recently, cleaning with both
chemicals is recommended. The acid cleaner should be used first. The acid cleaner is also used
as the storage solution so scale is automatically reduced when the system is “pickled”. If
biological growth is suspected the alkaline cleaner can be used on the next start up after the unit
has been “pickled”
If the membrane fails to respond to both cleanings, this is an indication of another
problem with the system, or that it is time to replace the membrane. Call Spectra Watermakers
before removing a membrane.
Maintenance cont.
Hand-held Salinity Monitor
page 20
Periodically recalibrate the hand-held salinity monitor. Make sure the batteries are good
and use the calibrating solution and instructions supplied.
Automatic Salinity Control
Check the calibration of the automatic salinity control monitor every 6 months.
Compare it against the hand held monitor that has good batteries and been recently calibrated.
Recalibrate if there is a difference of more than 100 ppm. See the calibration procedure section
of this manual. If the system will not calibrate properly, remove and clean the salinity sensor.
Ultraviolet Sterilization Filter
Periodically check the indicator light on the power supply while the UV filter is on. If
no light is visible, check the power to the unit. If power supply is OK, replace the bulb. The
quartz sleeve needs to be periodically cleaned and the bulb replaced once a year. Follow the
instructions that come with the UV filter option.
Product Flow Meter
The product flow meter may become dirty over time, especially if the system is left with
salt water in it regularly. To clean, remove the meter from the panel, slide off the small clear
cover on the top of the meter to expose a clear plastic plug. Use a 1/4” Allen wrench to remove
the plug, being careful to not loose the indicator ball. Remove the ball and clean the chamber
with a pipe cleaner or equivalent and rinse thoroughly. Clean the indicator ball and reassemble
the meter. Do not over tighten the plug. An O-ring makes the seal so just screw it in snug.
Clark Pump
Some dry salts may appear around the seams of the pump and are normal. Any wetness
indicates a leak that should be fixed. Rinse the Clark pump with fresh water periodically to
remove any salts, especially on the SS return tubes and fittings. The only parts affected by salt
water in the Clark pump are the return tubes and fittings. Fresh water flushing and external
rinsing will increase the tubes service life.
Feed pump(s)
Periodically check for leaks, cutout switch setting, and tighten all 6 screws that hold the
pump head together.
Electrical
The main reason for poor system performance is excessive voltage drop in the wiring to
the feed pump(s). Periodically check all the connections and check the voltage at the feed
pump with the system running under pressure with a good digital volt meter. There should be
less than 1/2 volt difference between the power source and the feed pump.
Membrane Cleaning Procedures
We do not recommend cleaning unless you are sure that it is indicated. With a Spectra System
cleaning is required when higher than normal pressures are encountered and the water
page 21
production has fallen. Always check the prefilters first.
For normal cleaning, the SC-3 Acid Cleaning Compound is used first, then the SC-2 Alkaline
Cleaning Compound. If known bio-fouling is present, the SC-2 may be used first.Using hot
water if possible, 120º, is highly recommended as it greatly enhances the ability of the cleaners
to do their jobs.
If the history of the system is unknown or has been left “unpickled” for an extended length of
time and biological growth is present, it is recommended that the system is cleaned with the SC2, using an alternate source of unchlorinated fresh water before the system is run under
pressure. A simple test can be performed to see if biological growth has occurred: Before
running the system, remove the pre-filters and examine their condition. If the housings are full
of discolored smelly water, the system was not properly stored. Install clean pre-filters if they
were bad. Next check the membrane. Attach the brine discharge service hose and lead to a
container. Open the pressure relief valve 1 turn and turn the brine discharge service valve to the
“Service” position. Manually run the system for 30 seconds. Examine the brine water; if it’s
discolored and smells bad, perform a SC-2 cleaning with an alternate source of unchlorinated
water before running the system pressurized. If the brine is fairly clean, the system can be
purged, run normally, and checked for performance. Clean the membranes only if performance
is reduced.
Heating the water is preferable. One way to do this is find a camp stove and use a large SS pot
to heat the solution in. The cleaning solution throughout the system will heat as it circulates in
and out of the pot. An alternative is to heat the one or two gallons of initial water in the
cleaning container to 120° F on the main stove before mixing in the cleaner and circulating it
into the system. Periodically stop and reheat the solution.
Perform the cleaning procedures while the ship is in acceptable sea water for purging and
testing.
Cleaning Procedures
Note: procedures are the same for the SC-3 and SC-2 cleaners
A Spectra Cleaning Compound (SC-2 or SC-3) must be mixed with fresh water at a ratio of
1 Spectra container to 3 gallons to have the proper solution. An average of two gallons of
water is in the system. This water has to be figured in the mixture. SC-3 and SC-2 are never
mixed together. Do not use them for storage.
Warning! The pressure relief valve on the Clark pump must be open for
this procedure or membrane damage may result. Maximum pressure 50 psi.
Note: Triple the run/soak times if the solution is not heated
Membrane cleaning, cont.
•
Attach the service hoses to the three way valves and direct them to the cleaning container.
page 22
Make sure the domestic water pressure system is on then start the automatic flush system.
When the flush cycle stops, move only the brine discharge to the “Service” position and
restart the flush cycle. Allow one gallon of flush water to flow into the container, then stop
the system with the Start/Stop button.
Do not use tap water or chlorinated water!
Distilled or charcoal filtered water is acceptable if using the flush water is not an option.
Start heating the water.
•
With the system flushed and unchlorinated fresh water in the container, thoroughly mix the
proper amount (see above) of the chosen cleaning chemical into the mixing container.
Warning! Re-check that the pressure relief valve is open or membrane damage may
result. Turn all the “Service” valves to the service position. Start the main feed pump
manually using the manual switch on the MPC control box. Do not use the remote control
panel.
•
Run the system unpressurized for one hour while maintaining the solution at warm if
possible then turn off for one hour to let the membrane soak. Don’t forget to turn off the
stove. Run the system again for 1 hour while heating the solution, then turn off for one hour.
Do not let the water get above 120º F! Triple the run soak times if the water is not heated.
•
Turn the brine discharge service valve to the “Run” position. Restart the system, the
solution will now drain from the container.
•
Place the intake service valve to the “Run” position. Run the system unpressurized on sea
water for at least 30 minutes to purge the cleaning solution.
•
After purging, close the pressure relief valve to pressurize the system. Manually divert the
product water with the product service valve into the cleaning container. After 30 minutes,
check the feed pressure, product flow, and quality, to determine if the membrane is
functioning normally. If the cleaning solution became very discolored during the cleaning
process, it is recommended to repeat the process. If the first cleaning did not affect the
membrane enough, repeat the cleaning process using the other cleaner. Always manually
reject the product water for 30 minutes after cleaning.
page 23
Membrane Element Replacement
Do not remove the membrane from the housing unless absolutely necessary.
Troubleshoot for all other causes of poor performance and try the recommend procedures first.
Caution: membranes must be kept wet to prevent permanent damage. Do not open the new
membrane packaging until ready to install.
Disassembly:
Flush the system. Disconnect the high pressure tubes, cut the housing mount bands, and
move the membrane housing to a work area that can handle water spillage. Clean off any
deposits on the ends with a stiff brush and fresh water. Note which end goes where so it can be
reinstalled the same way later. Inlet and outlet are marked on the housing. The housing end
caps are plastic and are held on by anodized aluminum retainer rings threaded to the pressure
vessel.
Loosen the retainer rings by tapping with a hard plastic or wood punch and a mallet on
the slot provided. As the retainer rings unscrew, twist and pull the black plastic end caps, to
follow the rings out. This way they can be removed with the factory plumbing fittings in place
as a ring/end cap assembly. Inspect the end caps and O-rings for damage, replace if necessary.
There are three O-rings per end cap, two are in the center bore of the end cap with a tiny vent
hole to the outside between them. Both of these O-rings must be in place and the vent clear.
Push the membrane element out of the housing by first pushing on the outlet end. If it
resists, try pushing on the other end. If the membrane is going to be kept for any reason, seal it
in plastic before it dries out.
Assembly:
Install the inlet end cap first. Lubricate all the O-rings and the housing with soapy water
or with a very thin layer of a pure silicone lubricant and start threading on the ring/end cap
assembly. As the end caps large O-ring comes into contact with the housing, twist and push on
the end cap to properly insert the O-ring, then continue tightening the retainer ring. If the tube
fittings were removed from the end cap, lubricate and insert the end cap, then install the retainer
ring, and then the plumbing fittings. See “Installation Basics”.
Check that the new element has a black rubber lip seal (brine seal) in a groove on one end
only. Check that the small product catch tubes that stick out from both ends of the membrane are
smooth and free of scratches and nicks. If there are scratches, dress them with 400 grit
sandpaper if they are not too deep. The product tube surface condition is important because the
O-ring seal on the tubes separate the high pressure salt water from the product water.
Lubricate the element brine seal and wet the whole inside of the housing. Insert the brine
seal end of the element into the outlet end of the housing. A gentle push with a slight rocking
motion and help with fingers should compress the brine seal lip so it slips inside. Push the
element into the housing, the brine seal will give some resistance, until it completely engages the
inlet end plug. The element’s product catch tube engaging and passing through the small O-rings
in the end cap center bore can be felt. The element brine seal should now be next to the inlet
plug.
Install the outlet end plug the same way as the inlet. It will go in harder because of the
center bore O-rings engaging the element’s product catch tube.
A new membrane has a pickling solution in it and should be thoroughly flushed
before use. Follow the “New System Start-Up” procedures.
page 24
Installation Basics
The Spectra Watermakers are designed for energy efficiency. All aspects of the system
have been optimized for this goal, therefore any changes in the basic layout or components will
most likely reduce this efficiency. Electrical power to the feed pump is one of the most critical
aspects of the installation. Wiring must be done to minimize voltage drop to the pump. If there
is any doubt, go oversize on the wire size. Larger wine will only help, marginal wiring will
reduce performance significantly.
The overall length of the feed, discharge and high pressure hoses have little effect on
performance but that every sharp turn absorbs power. Avoid adding 90 degree fittings. Use
gentle hose bends where possible. Careful consideration of the direction of water flow through
the pre-filters and boost pump in relation to how they mount will minimize hose lengths and
turns.
Thru-hulls
It is recommended that a designated 3/4” intake thru-hull and seacock be installed for the
system as far below the water line as possible . Sharing a thru-hull with another system is
acceptable, but can introduce unforeseen problems such as intermittent flow restriction, air
bubbles and contaminates. If the system is sharing an intake thru-hull, the intake service valve
can be used to shut off water to the system.
Do not install the intake close to or down stream of a head discharge. Install as far below
the water line and as close to center line as possible to avoid contamination and air induction.
We recommend that a reputable boatyard install any underwater thru-hulls.
The discharge thru-hull should be mounted above the waterline, in or just above the boot
stripe to minimize water lift. Having the discharge feed into a cockpit or sink drain will work,
but can make an unpleasant gurgle sound.
Double clamp all hose connections below the water line if possible.
Fittings
Metal pipe fittings that are to thread into plastic should be coated with 3-4 wraps of
Teflon tape. To avoid cracking the plastic, tighten until only 1/2 of the threads are buried. This
may not seem tight, but they will not, and should not, bottom out like a metal to metal
connection.
Metal to metal pipe connections should have 1-1/2 to 2 Teflon wraps only.
Plastic to plastic pipe connections should have 3-4 wraps of Teflon tape and be threaded
almost all the way in.
Be very careful to avoid getting any tape over the end of the fitting that might get into the
system. To insure this does not happen, leave the very first thread uncoated.
General Plumbing
page 25
Follow the Plumbing Diagrams on pages 37 or 38 for hose and tube connections. All
feed and discharge hoses are made of 5/8" reinforced nylon. The high pressure tubing is 1/2”
OD connected with 1/2” tube to pipe 316 SS compression fittings. The 90 degree high pressure
SS tube fittings mounted in the high pressure in and out on the Clark Pump can be rotated up to
1/2 turn for better tube runs. Straight SS tube fittings can also be used. The product water lines
are 1/4" black plastic tubing with plastic connectors. Feed water operating pressure up to 125
psi requires vigorous hose clamp tightening. It is recommended to lubricate the clamp screw
and use a nut driver for the final tightening. Re-tighten all hose clamps and check for leaks
after the first few hours of running.
Where hose runs are through areas that could get hotter than normal cabin temperatures,
use hose that is rated for the temperature expected.
If you use feed hose or product tubing that is not supplied by Spectra Watermakers, it
is mandatory to use products with a minimum burst pressure of 250 psi. If other types of prefilter housings are used, they must be rated to at least 125 psi maximum working pressure.
Feed and Discharge Hoses
Route the 5/8" hose smoothly between the components. Use straight hose fittings and
gentle turns in the hose where possible. Minimum hose bend radius is 6”. Tightly secure
hoses with tie wraps to avoid chafe.
High Pressure Tubes
Be sure to follow the Clark Pump and Plumbing Diagrams for proper connection
between the Clark pump and the membrane housing. Membrane water flow direction is marked
on the housing. Rotate the 90 deg. high pressure tube fittings on the Clark Pump for ideal tube
runs. The high pressure tubes are usually made in place. Loosely route the tubes between the
Clark pump and the membrane and cut long. Minimum tube bend radius is 6”. Follow the tube
connection instructions on page 40. Connect the tubes to one of the components, secure the
tube runs, and then trim and connect to the other component. A 90 degree bend in a hose is
better than a 90 degree fitting. A tube, when mounted, should have at least one gentle bend to
allow for expansion. Do not connect a tube straight between hard mounted fittings.
If other than the Spectra supplied tube and fittings are used, they need to be at least
1/2" ID if hose, 1/2” OD if tube, with non-ferrous 1/2” high pressure fitting,s and have a
working pressure of at least 2000 psi.
When connecting the tubes to the components, be sure to hold fitting body during the
final tightening. See the High Pressure Tube Fitting Instructions on page 43.
General Plumbing, cont.
page 26
Product Water Tubing
The product water lines are 1/4" plastic tubing. Minimum tube bend radius is 3.”
Connection can be made to either end of the membrane housing. Refer to the tube fitting
assembly diagram on page 41. IMPORTANT: The product water flow should not be
restricted in any way. If the line gets blocked, the pressure will build until the line fails.
Restricting the flow will reduce efficiency and may cause damage to the membrane.
Adding manifolds to the product line that could inadvertently stop the flow is prohibited
and will void the warranty. If more that one tank has to be filled, use more of the Spectra
product service valves. Do not substitute.
Connect to the water tank at or near the top. The ideal spots are to tee into the tank fill
hose or tap into the tank top or upper side. Do not feed into the bottom of the tank or a tank
feed manifold no matter how much you might want to. Air can be pulled through the
membrane and affect the domestic water system and pushing against head pressure will affect
system performance.
Service Valves
Carefully study the function of the service valves before committing to a plumbing plan.
It is easy to design a clean looking layout only to find out that it doesn’t work. The stem of the
tee shape is the common port so the valve will always introduce a 90 degree turn in the line.
Try to mount the valves so that the run positions of the handles are the same, such as all vertical
or all to the right. The service port 5/8” hoses can be attached to the service valves using hose
barbs or brass garden hose couplings for easy removal and storage. The product service tube
can be easily removed by unscrewing the plastic gland nut.
Fittings
Metal pipe fittings that are to thread into plastic should be coated with 3-4 wraps of
Teflon tape. To avoid cracking the plastic, tighten until only 1/2 of the threads are buried. This
may not seem tight, but they will not, and should not, bottom out like a metal to metal
connection. If it leaks, take another turn. If it still leaks, remove and re-wrap, adding an extra
wrap.
Metal to metal pipe connections should have 1-1/2 to 2 Teflon wraps only.
Plastic to plastic pipe connection should have 3-4 wraps of Teflon tape and be threaded
almost all the way in.
Be very careful to avoid getting any tape over the end of the fitting that might get into
the system. To insure this does not happen, leave the very first thread uncoated.
Component Placement
page 27
Refer to the Plumbing Diagrams on pages 37 and 38
Sea Water Strainer
Mount the sea water strainer between the intake thru-hull valve and the intake service
valve in a protected, accessible and visible spot that is not above water sensitive equipment.
Secure the upper section with the black plastic mount and tie provided. Allow a minimum of 11/2" space below for the strainer bowl removal. Mounting the strainer before the service valve
will give better protection, for normal operation mounting it after the service valve will allow it
to be flushed and pickled with the rest of the system. Note the direction of flow on the housing
and mount to minimize hose lengths and bends.
Intake Service Valve (Note: The intake(common) port is opposite the handle shaft)
Install the 1/2” intake service valve between the strainer and the feed pump. Use the
“U” clamps provided. It is ideal to have the intake, discharge and product service valves
accessible from a single position. The extra hose runs that may be needed are worth it. The
hose attached to the service port should reach a cleaning container that is positioned in a stable
area that can handle water spillage. The lever will move 180°. Moving the lever to the center
position half way between the run and service positions will close all the ports. The lever can
be removed and repositioned if necessary as long as it will still have its 180° throw.
Feed Pump (Note: Cooling fins can snap or slide off the motor for mounting access)
Pull or slide off the cooling fins and mount the feed pump in a vertical position, pump
head down, in a dry area and as far below the water line as practical to provide positive feed
pressure. Snap the cooling fins back on after fastening. Do not mount over water sensitive
equipment. The pump is self priming and can be mounted up to 4 feet above the water line, but
keep it as low as possible. Note the direction of flow through the pump and mount to minimize
hose lengths and bends. Use the feed pump mounting hole template taped into place, see page
47, to mark and drill for the fasteners. Avoid mounting the pump on large unsupported panels
to help reduce noise. For quieter operation, do not mount the pump with the rubber feet, instead
hang the pump by the hoses and secure the motor with large wire ties with a piece of foam
underneath Do not mount the pump horizontally, priming problems can occur. If the pump
has to be mounted in a hot area, installing the optional cooling fan is recommended. To install
the optional fan, slip the split plastic shroud over the cooling fins, with the split on the mount
side, till the fan touches the end of the motor. Make sure the pump wiring is clear. Leave a
minimum of 1”clearance above the cooling fan.
Dual Feed Pump System (Spectra 380c)
Mount the two fan cooled pumps in the same manner as specified in the last paragraph.
Mounting the pumps close to each other allows for easier plumbing but is not necessary. The
pumps are plumbed in parallel using the 5/8” tees supplied. Orient the tees so that if the feed to
a pump is straight through the top if a tee, that the discharge goes into the stem of the tee and
turning a right angle. The other pump will be opposite. This helps balance the flow through the
pumps. Follow the Plumbing Diagram on page 38 for proper tee connections.
Component Placement, cont.
page 28
Pre-filter
Refer to pre-filter plumbing on page 41. Use the bracket as a template for the mounting
fasteners. The bracket can be mounted with the angle down by first mounting the bracket, then
attaching the filter it to with the screws provided. Mount the pre-filter in an accessible location
that can be reached with both hands, as the bowl can get tight. Wrenches designed for filter
removal are available. 6” of clearance around the pre-filter are needed for the filter tool. Salt
water will be spilled during servicing so do not mount the pre-filter above any sensitive
equipment. Note the flow direction and mount to minimize hose lengths and bends, allowing
room for the hose fittings and gentle hose bends. Allow 1-1/2” of space below the filter for
housing removal. The feed pressure gauge tubing is attached to a tee before the pre-filter. The
tee is usually hard plumbed directly to the pre-filter inlet but can be installed anywhere between
the feed pump and the pre-filter.
Clark Pump
Refer to the the Clark Pump Mounting Diagram on page 42 to install the mounting
brackets and shock mounts. Bolt the mounting brackets to the base of the center block with the
short 5/16” SS bolts and washers, sandwiching the plastic washers in between the center block
and the brackets. The brackets will over hang from the front and back of the center block.
Moisten the rubber shock mounts and slip them into the bracket holes, then install the plastic
inserts into the rubber mounts
The Clark Pump can be mounted on any horizontal surface that will support it’s weight
and is not subjected to excessive vibration. Height above or below the water line is unrestricted.
Allow for easy access to the pressure relief valve for system servicing. Mounting on a vertical
surface can be expedited by using the optional "L" bracket. For hanging from overhead, the
rubber mounts can be used upside down. If necessary the Clark pump can be hard mounted,
using the bolt pattern in the base, to mount in any position. Avoid mounting in the middle of a
large unsupported flat surface that could amplify the sound of the pump “shift”.
Allow room in the front and back for access to the high pressure tube and hose
connections. If mounting up against a bulkhead, attach the high pressure tubes before
mounting. The 90 degree fittings supplied are acceptable for the feed and high pressure tube
connections to the unit and can be rotated for easy tube runs. Straight fittings can also be used.
The brine discharge hose connection to the reversing valve body should be straight if possible,
and can be connected to either end of the reversing valve. Plug the unused port.
Make sure that the area around and under the pump does not have any water sensitive
equipment. Water will be spilled during any repairs or if a leak occurs.
Use the Clark Pump mounting hole template, see page 47, to mark and drill for the
fasteners. 1/4" bolts and Nylock nuts are preferred, but lag bolts are acceptable if they penetrate
at least 1" into solid material. Drill pilot holes for lags bolts.
Caution: Tighten the fasteners until there is light pressure on the plastic inserts. The
plastic inserts will collapse if over tightened. The 1/4” fender washer must be on top to prevent
the mounting brackets from slipping out of the rubber mounts under adverse conditions.
Do not mount the Clark Pump in an area that is subject to sustained temperatures over
120 deg. F.
Component Placement, cont.
page 29
Membrane and Housing Assembly
Mount the membrane and housing assembly as close to the Clark Pump as possible,
using the black plastic brackets and heavy duty black tie wraps provided. The plastic tie wraps
allow the membrane housing to expand and contract with pressure changes without damage.
The membrane housing is marked for water flow direction and can be mounted at an angle or
vertical, but the brine outlet end should be up to help purge air. If the Inlet and Outlet labels
are lost, refer to the membrane housing assembly instructions to remove the membrane element
and check for the brine lip-seal on one end of the membrane. The high pressure inlet and
membrane brine seal go on the same end.
Route the high pressure tubing to and from the membrane housing as smoothly as
possible. Avoid clamping the tubes tightly to any surfaces for sound dampening. "Hanging"
the tubes away from a surface with wire ties so that they are neither tight nor completely loose
is best.
The product water tube can be connected to either end of the membrane. Plug the
unused 1/8” pipe product port.
Do not mount the membrane in an area that is subject to sustained temperatures over
120 deg. F.
Brine Discharge Service Valve
Mount the brine discharge service valve between the Clark Pump and discharge thruhull, within reach of the other service valves if possible. Use the “U” clamps provided. The
service hose should easily reach the cleaning container. The lever will move 180°. Moving the
lever to the center position half way between the run and service positions will close all the
ports. The lever can be removed and repositioned if necessary as long as it will still have its
180° throw.
Spectra Monitor Panel
Mount the panel vertically in an easily visible area that can be reached by the feed
pressure and product water tubing. Use the Spectra Panel cut-out template, page 48, taped
into position, to mark and drill for the fasteners and cut-out. Since keeping tabs on the system
is vital for longevity, mount the panel where you will see it often. Make sure there is room
behind the panel for the tube connections. If the mounting area is finished wood, tape the
outside perimeter of the cutout and use a reverse tooth saw blade to prevent splintering.
Refer to the drawings on pages 37 and 45. The product water tube from the membrane
is connected to the bottom of the flow meter. The top port is connected to the product service
valve, and finally to a tee in the tank fill or a fitting tapped into the tank top or top side. The
feed pressure gauge is connected to a tee in the line between the Clark Pump and the pre-filter.
Use the 1/4” black tubing and fittings. If access to the back of the panel is limited, leave
enough extra tubing to allow the connections to be made before the panel is secured. Route the
tubes so they won’t kink when the panel is pushed into place. Fasten with # 4 screws.
Component Placement, cont.
page 30
Product Water Service Valve
The 1/4” product water service valve can be placed anywhere between the Spectra Panel
and the tank. The ideal location is within reach of the other service valves. Use the “U” clamps
provided. The service line should be long enough to reach the cleaning container for servicing.
The lever can move only 90°. Moving the product service valve lever to the center cannot close
the ports. This feature is important! Do not substitute other valves for use in the product line.
The lever can be removed and repositioned if necessary as long as it will still have its 90°
throw.
Accumulator Tank
Refer to the plumbing diagram on page 34. The accumulator tank connects to a tee
placed in the hose between the pre-filter and the Clark Pump. Mount in any position that allows
access to the air valve. Do not place the tee before the pre-filter. Connect one port to the tee
using the fittings supplied and the 5/8” feed hose. The other port is plugged.
Manual Fresh Water Flush System (optional)
The optional manual fresh water flush system uses a charcoal filter that is in the same
type of housing as the micron pre-filter and the same type of service valve as the intake and
brine service valves. They mount the same way. The flush service valve can be placed
anywhere between the intake strainer and the feed pump but is usually mounted between the
intake service valve and the feed pump. Mount is a convenient spot at it will be accessed often.
See the Manual Fresh Water Flush Diagram on page 46. The fresh water is normally drawn
from the tank in the same manner as the domestic water pressure pump. Water from the
pressure side of the domestic system can be used but there is a higher chance of leaks.
Power Control Module (optional)
(For automatic salinity control with remote panel and optional automatic fresh water flush )
The power control module ideally should be mounted between the ships power panel
and the feed pump(s). Mount in a dry area preferably on a vertical surface with the wires down.
It can also be mounted horizontally. Refer to the wiring diagram on page 48 for proper
breaker and wire sizing. Do not scrimp on the wire size. Run all the wires through the hole in
the bottom side leaving enough extra to make the connections to the electrical boards.
Remote Control Panel (optional)
The remote control panel is designed to fit just above or below the monitor panel but
can be mounted anywhere that’s dry and convenient. Use the cut-out template on page 48 .
The dotted lines show where the sides of the panel will be. If the mounting area is finished
wood, tape the outside perimeter of the cutout and use a reverse tooth saw blade to prevent
splintering. Run the multi-conductor cable through the panel cut out to the power control
module. Connect the wires to the terminal strips on the power control module, matching colors.
The cable may be shortened if desired. If access to the back of the panel is limited, leave a loop
cable behind the panel for service access. Fold the extra cable back through the cut-out and
secure the panel with # 4 screws.
Component Placement, cont.
page 31
Automatic Salinity Control Sensor and Diversion Valve (optional)
Follow the Salinity Control Plumbing diagram page 36. The sensors assembly and the
diversion valve are usually mounted together as illustrated. They can be mounted separately
but the sensor must be up stream of the diversion valve. The sensor assembly must be mounted
with the sensor on the bottom so any trapped air will not affect the system. Mount the sensor
and valve between the product service valve and the water tank. Plumb the reject port on the
diversion valve to the small check valve and then to a tee in the brine discharge line between
the brine discharge service valve and the brine thru-hull. Do not have a shut off valve in the
brine discharge line down stream of where the diverted product tees into that line. The
diverted product water flow must not be blocked in any way. The tee can be hard plumbed
to the brine service valve or the thru-hull if desired. Do not mount the tee up stream of the
brine discharge service valve or damage to the membrane and diversion valve will result.
Orientation of the diversion valve is not critical and the ports are labeled. Follow the
Installation Basics section and 1/4” tube connection instructions in this manual for proper pipe
and tube connections. Caution: Do not over tighten the pipe fittings to the solenoid valve
or cracking may result!
Follow the 380c with Salinity Control and flush Options Wiring Diagram on page 52
for proper wire connections. For 200c models, pump 2 and the fans are omitted.
Automatic Fresh Water Flush System (an option for the salinity control)
Follow the automatic flush plumbing diagram on page 40. The check valve must be
mounted vertical with flow upwards to prevent the possibility of it sticking open and the
solenoid valve must be plumbed down stream of the charcoal filter to prevent salt water
contamination of the filter element. The components can be mounted separately if desired. The
system is usually teed into the intake hose between the intake service valve and the feed pump.
Use tie mounts and wire ties to fasten to a vertical surface. Follow the 380c with salinity
control and flush options wiring diagram on page 42 for proper wiring. The flush time is
factory set. After installation check if the timing is correct. Run the system normally then shut
down. Make sure the ships pressure water system is on then activate the flush system and
watch the feed pressure at the monitor panel. The feed pressure will drop and stabilize. The
system should continue run for 30 to 90 seconds after the feed pressure stabilizes then turn itself
off. To adjust, open the power control module and adjust the flush trim pot that is wired to the
timer. Turn clockwise to increase flush duration, counter-clockwise to decrease.
Service Valve Panel
Mount the service valves in the panel as shown in the directions that come with the
panel. The panel is designed to mount hanging from the overhead, along a wall, or sticking up
from a horizontal surface. After placement, label the valves with the stick-on labels provided.
Use this option to place the service valves and the manual flush valve in a convenient location.
Any extra hose runs are worth the effort to have the service valves easily accessible.
Component Placement cont.
page 32
Ultraviolet Sterilization Filter
The “UV filter” is plumbed in the product tube going to the water tank, typically after
the service and diversion valves but can go anywhere between the membrane and the water
tank. The unit is designed for the Spectra’s product flow only. Do not place it in the vessel’s
domestic water system. Do not install a valve in the product system that could cause the
product flow to be inadvertently blocked. High pressure damage could result to the UV filter
and the product tubing. Follow the mounting and service instructions that are supplied with the
unit.
page 33
End block B
Valve block
End block A
Composite cylinder
and base
Brine out
Pressure relief valve
Center block
Feed in
Stainless steel tube
Cylinder ring
Clark Pump Front View
End Cap
End block A
Valve block
End block B
Socket for MPC 3000
stroke sensor
Composite cylinder
and base
Alternate brine out
High pressure in
Test port
Center block
High pressure out
Stainless steel tube
Cylinder ring
End cap
Clark Pump Rear View
page 34
3 1/2"
Membrane and Housing
(8.9cm)
43 1/2"
(112.5cm)
Remote panel
Clark Pump
8 1/2"
3"
(7.6cm)
5 1/4"
27 1/4"
(13.3cm)
6.5" (16.5cm) with fittings
(69.3cm)
Feed pump
Sea strainer
Pre-filter
Add 1" (2.54cm) in length for cooling fan
3 1/2"
4 7/8"
4 1/2"
Accumulator tank
(12.4cm)
(11.4cm)
(8.9cm)
4"
(10.4cm)
Spectra
Components Dimensions
4"
(10.4cm)
(22.7cm)
8 15/16"
12"
2 7/8"
(7.3cm)
(30.5cm)
9 1/4"
(11.4cm)
(23.5cm)
5"
4 1/2"
(12.7cm)
page 35
5"
(12.7cm)
(12.6cm)
5 1/2"
(14.0cm)
SPECTRA
16"
4 3/4"
By 4 3/4" deep
Mounting board or area dimensions
Spectra Power Control Module
12"
6 1/2"
Flush solenoid valve
To feed pump
4.0"
To tank
8"
9 1/2"
From charcoal
filter
Fuses
Check
valve
6 1/4"
Pump 1
8"
- DC Ground
8.0"
10 1/2"
+ DC Input
Pump 2
Diversion valve
Diversion Valve
Product in
3"
Salinity sensor
From sea water strainer
Valve Mounting Bracket
10"
5 1/4"
SPECTRA
WATERMAKERS
Pump 1
Backflush
Reject
Good
7 1/2"
Salinity
Pump 2
7 1/2"
2"
page 36
Power Control Module, Fresh Water Flush, and Salinity Control
Diversion Valve with Sensor in a compact layout configuration
Remote Control Panel
6 5/8"
Clark Pump Bulkhead Mounting Bracket
Optional Component Layout and Dimensions
Product out
Brine outlet
Membrane and housing
High pressure inlet
1/2" H.P. tube to top H.P. inlet
1/2" H.P. tube from bottom H.P. outlet
Accumulator tank
Remote monitor panel
Rear view
Pressure Gauge
Plug
Flow meter
Product service
valve
5/8" hose
Vent
1/4" Black tubing
page 37
To pressure gauge
12 VDC
Discharge service valve
Fresh water tank
Brine discharge
Sea strainer
5/8" hose
Feed pump
Hose barbs and clamps
Intake
Intake service valve
Cleaning bucket
Pre-filter
Spectra 200c Plumbing Diagram
Product out
Brine outlet
Membrane and housing
High pressure inlet
1/2" H.P. tube to top H.P. inlet
1/2" H.P. tube from bottom H.P. outlet
Accumulator tank
Remote monitor panel
Rear view
Pressure Gauge
Plug
Flow meter
Product service
valve
5/8" hose
Vent
1/4" Black tubing
page 38
To pressure gauge
12 VDC
Discharge service valve
Fresh water tank
Brine discharge
See manual for
tee orientation
5/8" hose
Hose barbs and clamps
Sea strainer
Intake
Intake service valve
Cleaning bucket
Pre-filter
Spectra 380c Plumbing Diagram
Product out
Flow meter
Membrane
Remote monitor panel
Rear view
Diversion solenoid valve
Tank Fill
page 39
Tank port
Salinity sensor
Product service valve
Reject port
Wire must point down
Manual by-pass for
service and cleaning
Fresh water tank
Note: The reject product water
can be plumbed into the brine discharge
line anywhere between the discharge service
valve and the discharge thru-hull
Check valve
To brine discharge thru-hull
Do not install a valve in this line
From brine discharge
service valve
Spectra Salinity Sensor and Diversion Valve Plumbing
Fresh water from ships
pressure system
Charcoal filter
Solenoid valve
Actuated from timer control
To feed pump
1/2" Check valve
Mount vertical with
flow upwards
page 40
Optional: Place valve
between intake strainer
and intake service valve
Spectra Automatic Fresh Water Flush Plumbing
Connector for 1/4" black tubing lead
for feed pressure gauge
3 to 4 Teflon tape wraps
5 Micron
From feed
pump
Pre-filter plumbing
25 Micron
From feed
pump
Dual pre-filter
option plumbing
page 41
5 Micron
Lag or screw
mounting
Bolt mounting
1/4" SS Bolt
2"-1/4" SS Lag bolt or
# 14 sheet metal screw
Caution: Do not over tighten,
the plastic inserts may crush.
1/4" SS
Fender Washer
Plastic Insert
Rubber
Grommet
Center Block
1/4" SS
Fender Washer
Plastic Insert
Plastic washers
Rubber
Grommet
5/16"-3/4"
Mount Bolts
Pre-Drill
Mounting Surface
Plastic washers
Bottom view
Clark Pump Mounting
page 42
Aluminum
brackets
Note: Remove aluminum
mounts before shipping the
Clark Pump.
Spectra High Pressure Tube Fitting Assembly
Carefully fit and measure the tubing before cutting with a sharp razor knife or hose cutter
and remove any burrs. Minimum tubing bend radius is 6”. Route tubing away from excessive
heat sources and secure from vibration and chafe. Have at least one shallow bend in a tube
assembly after it is installed.
Refer to figure 1. If a fitting has been dissembled, reassemble as illustrated. The notch
on the ferrule must engage the inside of the nut properly for the nut to seat down fully. Once the
tube is inserted, the ferrule and nut will naturally align.
Refer to figure 2. Insert tube fully into the fitting, it should go in 0.9”. Tighten the nut
finger tight while moving the tube around to prevent binding. One thread should be showing
under the nut. Secure the tube so it won’t back out when tightening.
Refer to figure 3. Use 13/16” wrench to hold a straight body fitting or a 3/4” wrench for
a 90º body, and a 7/8” wrench for the nut. Hold the body, recheck the tube insertion, then tighten
the nut 1-2/3 turns (10 flats) after a good finger tight. Use the index mark on the nut as a guide.
The threads should be completely covered by the nut.
The tube connectors can be disconnected and re-tighten several times. To reconnect,
insert the tube and ferrule into the body then hand tighten the nut. Hold the body and tighten the
nut with a wrench a little past where resistance is encountered. When correct, the nut should be
tightened a little past where it was before disassembly. Always check for leaks.
Index mark
Straight thread
Figure 1.
Ferrule
Nut
Body
Cut tube square
Figure 2.
Black high pressure tubing
Tighten 1 2/3 turns (10 flats)
with a 7/8" wrench after finger tight.
Use index mark as guide
Figure 3.
Insert tube 0.9" until it stops
page 43
No threads showing
Body
O-ring
Spacer
Grab Ring
Nut
Step 1:
Dissemble fitting components
1/2" max
Step 2: Install the Nut first then use the bevelled side of the Spacer to push the
Grab Ring onto the tube no more than 1/2". Slip the O-ring over the tube
to hold the Spacer in place. If the Grab Ring is pushed too far, trim back
the tube so about 1/4" of tube extends past the O-ring.
Step 3: Gently fit the tube into the body and loosely thread on the nut.
Step 4: Push the tube into the body until it bottoms out then hand tighten the nut.
DO NOT OVER TIGHTEN!
1/4" Tube Fitting Assembly
page 44
Tubing
Rear view
Flow meter
To product service valve
Feed pressure
guage
From membrane
From tee upstream
of all pre-filters
Use 1/4" black tubing and straight
or 90 deg. tube fittings
Monitor Panel Plumbing
page 45
To feed pump
Connect to pressure water system
or direct from a water tank
Charcoal filter
Optional: Place valve
between intake strainer
and intake service valve
Flush valve
Place valve in a convenient location
page 46
From intake service valve
Manual Fresh Water Flush Plumbing
REMOVE FOR USE
Side
Drill for
# 10 Machine Screws
# 10 SM Screws
Feed Pump
Mounting template
Side
2.250"
Top
Bottom
3.194"
Drill for 1/4" bolts,
1/4" lags,
# 14 SM Screws
6.500"
Under
Cylinder
Clark Pump
Mounting Template
IMPORTANT! Check actual measurements of
templates for printing errors before use
Front
page 47
Under
Cylinder
4.000"
Back
Drill 1/4" holes
to start cut out
Remove for use
1.500"
Top
Spectra Remote Control Panel
Cut Out Template
Cut line
4.750"
Drill for # 4 screws
to mount panel
Dotted lines are actual panel dimensions
Top
5.000"
Drill 3/8" holes
to start cut out
SpectraMonitor Panel
Cut Out Template
IMPORTANT! Check actual measurements of
templates for printing errors before use
Bottom
4.750"
page 48
Cut line
ELECTRICAL
See the wiring diagrams on the following pages.
A robust electrical connection is crucial to the proper operation of the system. Examine
your electrical system carefully to determine the proper place from which to draw power. If
power will be drawn from a breaker(s) on the main distribution panel, make sure the panel has at
least #8 gauge wire for panel positive feed and ground. Check all connections for tightness,
including the ground buss. Refer to the wiring diagrams on pages 50, 51, & 52 .
If the panel is inadequate or too far away, a direct connection to a battery is advisable.
An in-line fuse (15 amp-slow blow) next to the battery and a switch (15 amp minimum rating)
will be necessary for each pump on standard 200c and 380c models. If the system has the Power
Control Module-Remote Control Panel option, a 25 amp fuse is required. For 24 VDC systems
use 7 amp breakers for the feed pump wiring and a 15 amp breaker for the Power Control
Module.
For standard 12 VDC systems with individual pump wiring, use a 15 amp breaker and
#10 gauge up to 10 feet, and #8 gauge up to 25 feet. A terminal strip mounted next to the feed
pump can help connect the large wire to the #14 gauge wire from the pump. For 24 VDC
systems use a 7 amp breaker and use #12 gauge to 10 feet and #10 gauge to 25 feet.
For systems with a Power Control Module, use a 25 amp breaker and #8 gauge to 10 feet,
and #6 gauge to 25 feet from the power source to the module and follow the individual pump
wiring directions in the last paragraph for the feed pump wiring from the Power Control Module.
For 24 VDC systems use a 15 amp breaker and use #10 gauge up to 10 feet and #8 up to 25 feet.
Use marine grade insulated double-crimp connectors that match the wire gauge. Size
ring terminals to the size of the fasteners. Crimp the connectors with a crimper designed for
insulated connectors using both hands as hard as you can for the main crimp, and a little easier
for the insulation crimp. Pull on the connector to test the strength of the crimp, you should not
be able to pull it off. If butt connectors are used to connect #10 gauge wire to #14 gauge wire,
strip twice the amount of insulation from the small wire, then fold the bare wire back on itself
before inserting into the connector. Solder and heat shrink all connections where possible.
Remember to slip the heat shrink onto the wires before connecting.
If the optional cooling fan is used, or in the Spectra 380c, insert the fan wires in the
connectors along with the pump wires, positive with positive, negative with negative.
An optional UV filter is typically powered by it’s own switched 5 amp circuit so it can be
used only when desired but can be wired directly with one of the feed pumps. If wired direct to a
feed pump, it will only be operational when that pump is running. Use #16 gauge wire.
Follow the pattern of the original factory wiring when adding a new circuit. When
adding a new wire to an existing wire bundle, remove all the old tie wraps where possible, run
the new wire, then tie at even intervals. This will result in a clean and "original" look.
LIMITED WARRANTY
page 49
Spectra 200c & 380c
Standard Wiring Diagram
Cooling fans
Main Electrical Panel
Positive buss
page 50
UV Filter
5 amp breaker
Optional Duplex Boost Pumps
Alternate UV filter power connection
Use 5 amp inline fuse
15 amp breakers 12VDC
7 amp 24VDC
Wire size for each pump
12VDC
# 10 gauge to 10 feet
# 8 gauge to 25 feet
Negtive buss
+
Cooling fan
Wire size for each pump
24VDC
# 12 gauge to 10 feet
# 10 gauge to 25 feet
_
To battery, #8 gauge or larger
Boost Pump
Spectra Power Control Module
Main Electrical Panel
Power feed wire size
for 12VDC systems:
25 amp breaker required
# 8 gauge to 15 feet
# 6 gauge to 25 feet
page 51
15 or 25 amp breaker
+ DC Input
Positive buss
- DC Ground
Pump 1
Pump 2
Diversion Valve
Power feed wire size
for 24VDC systems:
15 amp breaker required
# 10 gauge to 15 feet
# 8 gauge to 25 feet
Negtive buss
To battery, #8 gauge or larger _ +
12 or 24 VDC
Power Control Module Wiring Diagram
Power feed wire size
for 12VDC systems:
25 amp breaker
Power feed wire size
for 24VDC systems:
15 amp breaker
# 8 gauge to 15 feet
# 10 gauge to 15 feet
Backflush timer
For 200c models omit
pump 2 and both fans
Reject
Cooling fan
Cooling fan
Good
Pump wire size
for 12VDC systems:
# 10 gauge to 15 feet
TS-1
PUR
BRN
YEL
SHD
RED
GRN
BLK
BLU
GRY
WHT
ORG
YEL
# 8 gauge to 25 feet
GRY
Adjusting pot
Connect fan wiring with
feed pump connections
Backflush
Salinity
Pump 2
# 8 gauge to 25 feet
Power Control Module enclosure bottom
+ DC
Pump 1
GRN
WHT
# 6 gauge to 25 feet
SPECTRA
WATERMAKERS
Remote control
cable connector
Pump 2
Pump 1
Push in
connectors
# 12 gauge to 15 feet
Hanna salinity
controler
P1 P2 P3 P4 P5
Pump wire size
for 24VDC systems:
# 10 gauge to 25 feet
- DC
page 52
Underside of enclosure top
Interconnect wiring not shown
K1
Pump 1 relay
+ Pump 1
TS-2
Solenoid wire size
for 12 or 24VDC
systems: #16 gauge
Main power connects to
studs on enclosure face
+ DC Input
25 amp
- Pump 1
Salinity sensor
Flush valve
- DC Input
+ Pump 2
K2
Pump 2 relay
- Pump 2
Pump 1 breaker
+ Flush
valve
K3
Backflush relay
- Flush
valve
+ Diversion
valve
Pump 2 breaker
Diversion valve breaker
Run seperately from other
wires to avoid interference
- Diversion
valve
Automatic Salinity Control and Auto Fresh Water Flush Wiring Diagram
Diversion valve
Troubleshooting Guide-Basic System
Symptom:
Feed pump start but shuts down on
high pressure. (over 100 psi)
Cause:
Remedy:
page 53
A. Pre-filters excessively clogged
A. Service pre-filters
B. Brine service valve in mid (off) position
B. Open brine service valve
C. Clark pump stalled
C. Press reset button
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Pump(s) do not run and
A. Tripped breaker, blown fuse, or bad connection A. Check voltage at motor then search back
no feed pressure
B. Bad pump motor
B. Replace
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Feed pump runs but no fresh
A. Thru-hull closed
A. Check system, then open thru-hull
water flow
B. Pressure relief valve open
B. Close relief valve
C. Pump air-locked
C. Open relief valve to purge air, then close
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Lower water production, high amp
A. Pre-filter clogged
A. Service pre-filters
draw, high feed pressure, pump cycles
B. Very cold water
B. Use one pump (380c)
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Low water production, low amp draw,
A. Low voltage at feed pump(s) under load
A. Check battery and wiring
low feed pressure
B. Relief valve partially open
B. Tighten hand tight only
C. Leak in high pressure hoses or fittings
C. Tighten or replace fitting and/or hose
D. Debris in feed pump check valves
D. Disassemble pump head and clean
E. Internal leakage in the Clark Pump
E. See Clark Pump Repair Manual
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Water production normal, feed
A. Cold sea water temperature
A. Normal operation
pressure high, high amp draw
B. Membrane starting to foul
B. Clean membrane
C. Pre-filters starting to clog
C. Service pre-filters
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Water production normal, feed
A. Warm sea water temperature
A. Normal operation
pressure low, amp draw low
B. Brackish water
B. Normal operation
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Water production high, poor
A. Seal failure inside membrane housing
A. Disassemble and check for bad seals
water quality
B. Membrane failure
B. Replace membrane
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------Asymmetrical pressure and flow
A. Reversing valve seal leaking
A. See Clark Pump Repair Manual
readings between shifts or no
B. Shaft seal leaking
pressure and flow generated
C. Pin seal leaking
D. Check valve leaking
Troubleshooting Guide - Auto Salinity Control System W/ Remote Panel:
REV 7/00
Symptom:
Cause:
Remedy:
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------No pump action, no LED’s activate.
A. No power to control box.
A. Check supply circuit breaker / fuse / wiring.
B. Disconnected remote control
Wiring harness.
page 54
B. Check 10-pin remote panel plug for damage
or corrosion. Also check remote panel connections
at 10-pin terminal strip inside control box, and at
rear of control panel.
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------Pump 1 / 2 LED’s activate,
A. Tripped breaker on control box,
A. Reset breaker, or try switching K3 relay into
but no pumping action.
or defective K1 / K2 relay.
K1 / K2 position. If pumps then operate, replace
defective relay[s].
B. Loose / broken wire between
B. Check for voltage at each feed pump. Should be
control box and pumps.
within 1/2 volt of the input voltage at control box.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------Reject LED stays on, diversion valve
A. Tripped breaker on control box,
A. Replace fuse, or try switching K1 relay into
stays in reject mode.
or defective K3 relay.
K3 position. If diversion valve then operates,
replace defective relay.
B. Salinity sensor control out of
B. Run system in normal mode for at least 15 min,
calibration
check product water salinity with a recently
calibrated hand held tester. If PPM on hand held
tester is over 800 PPM, then control is OK; call
for assistance with testing the rest of the system.
See below to calibrate control.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------------‘Good’ & ‘Reject’ LED’s do not light,
A. Blown mini glass fuse on circuit
A. Replace with 1 amp mini glass fuse or equivalent.
diversion valve stays in reject mode.
board for salinity sensor control.
Symptom:
Cause:
Troubleshooting Guide – Continued:
Remedy:
page 55
Pump 1 / Pump 2 LED’s stay on,
A. One or both pumps pressure
A. Refer to “New system startup” section
One or both pumps cycle on / off,
switches out of adjustment,
.
of operation and installation manual for
Erratic operation of ‘good’ &
causing pumps to short cycle
proper pump switch adjustment procedure.
‘reject’ LED’s
B. System fault
B. See Troubleshoot Basic System
-----------------------------------------------------------------------------------------------------------------------------------------------------------------No flush operation
A. No fresh water available
A. Turn on ships’ fresh water pump,
‘pump 1’ & ‘good’ LED come on.
verify that water pressure is available.
B. Clogged flush charcoal
B. Replace charcoal filter element.
Filter element.
C. Defective flush solenoid
C. Disconnect hose from solenoid valve,
and activate flush switch, if no
water flows, then replace solenoid valve.
D. Loose / broken wire between
D. Check wiring connections between control
control box and solenoid.
box and solenoid valve. Check for voltage at
solenoid during flush cycle.
E. Low voltage to control box.
E. Control box must have at least 12.5 [24.9] volts
in order to open valve under pressure.
*NOTE: On Gulfstream 400 models, step #C above will not apply, consult factory for flush testing procedure.
-----------------------------------------------------------------------------------------------------------------------------------------------------------------No flush operation
A. No power to control box
A. Check supply circuit breaker / fuse / wiring.
‘pump 1' or ‘good’ LED do not come on.
B. Blown F4 on relay board
B. Unsolder & replace F4 with 3 amp, slow blow
Fuse. [any similar fuse may be substituted]
-----------------------------------------------------------------------------------------------------------------------------------------------------------------More [or less] flush cycle time
A. Adjust timer [orange cube].
A. Adjust small screw on blue potentiometer
desired
CW for more time, or CCW for less time.
-----------------------------------------------------------------------------------------------------------------------------------------------------------------NOTES:
1. When ordering replacement parts, or calling for assistance with the salinity control system, we need to know the system voltage and the
serial number on the bottom of the control box.
2. Be sure to carefully test all components before ordering replacement items, electrical parts are NOT returnable.
The automatic salinity control system must be periodically recalibrated to ensure proper operation. At a minimum, the salinity probe
pins must be periodically cleaned as described below to remove mineral deposits, scale, etc.
1.
2.
3.
4
5.
1.
page 56
2.
3.
4.
5.
6.
7.
8.
Calibrating salinity control: [Serial numbers 2000 – 5541] with internal adjustment knob]
The salinity sensor is the only device with just ONE wire connected. All other solenoids, etc, have TWO wires. Unplug the sensor wire from
the control box and carefully remove the salinity sensor from the diversion tee [or manifold on Gulfstream 400 models] Be careful not to
twist the sensor wire!
Trim away the plastic ‘fins’ around the probe pins, and clean the pins with fine sandpaper or a stainless steel wire brush. The pins must be
bright and shiny clean for proper calibration.
Reconnect the sensor wire to the control box, turn on one feed pump, and insert the sensor into the package of 800 PPM calibration solution.
Turn the black shaft at the top of the salinity circuit board until the diversion valve & ‘reject’ LED just activate. Try this adjustment several
times to be sure.
Reassemble the diversion tee [or manifold on Gulfstream 400 models] and sensor, and retest the system.
Calibrating salinity control system: [serial numbers 6000 – 6999] with digital readout on front of control box.
The salinity sensor is the only device with just ONE wire connected. All other solenoids, etc, have TWO wires. Unplug the sensor wire from
the control box and carefully remove the salinity sensor from the diversion tee [or manifold on Gulfstream 400 models] Be careful not to
twist the sensor wire!
Trim away the plastic ‘fins’ around the probe pins, and clean the pins with fine sandpaper or a stainless steel wire brush. The pins must be
bright and shiny clean for proper calibration.
Reconnect the sensor to the control box, turn on the system, and insert the sensor into the package of 800 PPM calibration solution. Push the
“meas” button to display the actual PPM at the sensor.
Use a thermometer to determine the approximate temperature of the sensor and calibrating solution. Refer to the temperature compensation
chart on the package of the calibration solution, to determine the actual salinity value of the solution. For example, if the thermometer reads
80 degrees F, then the solution value is 832 PPM. If no thermometer is available, use the baseline value of 800 PPM.
Use a small screwdriver to turn the “cal” adjusting screw until the display reads the calibrating value determined in step #3.
Remove the sensor from the solution, display should read ‘000’.
Verify the reject set point by pressing the “set” button on the display readout. Value should be 500 PPM.
Reassemble the diversion tee [or manifold on Gulfstream 400 models] and sensor, and retest the system.
Spectra Watermakers warrants to the original purchaser that all components, except for the
Clark Pump, are free from any defects in material and/or workmanship for a period of one year
from the date of purchase.
Spectra Watermakers warrants to the original purchaser that the Clark Pump is free from
any defects in material and/or workmanship with a limited life time warranty from the date of
purchase.
If any such defect is discovered and reported within the warranty period, Spectra
Watermakers will repair or replace the affected component free of charge, subject to
verification of the defect or malfunction upon inspection at Spectra Watermakers. The
customer is responsible for all costs incurred for removal, shipping to and from our facility, and
reinstallation.
This warranty does not apply to malfunctions or physical damage resulting from abuse, neglect,
accident, alteration, modification, feed pump substitution, submersion, shipping damage, hoses
and fittings not supplied by Spectra Watermakers, improper membrane maintenance, oil and
chlorine damage, use of sodium bisulfite or sodium metabisulfite, or improper installation.
Consumables such as pre-filter elements are not covered.
Spectra Watermakers, under no circumstances, shall be liable for any consequential damages
arising out of, or in any way connected with, the failure of the product to perform as set forth
herein. This limited warranty is in lieu of any and all other expressed or implied warranties.
Spectra Watermakers reserves the right to make changes or improvements on its products
without incurring the obligation to retrofit such changes or improvements on previously
manufactured units.
If a possible warranty problem is detected, please contact one of our service representatives
before any disassembly for assistance, and to receive a Return Authorization number if a
component is to be returned for a warranty repair.
Proof of purchase, return address, and a Return Authorization number are required for all
warranty repairs.
Ship to:
Spectra Watermakers
A Division of Edinger Marine Service, Inc.
298 Harbor Drive Sausalito, CA 94965
Phone 415.332.3780
Fax 415.332.8527
E-mail: [email protected]
page 57
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