Sea Recovery Aqua Whisper DX 1400-2, Owner'S Manual

Page: 60 / 226

Aqua Whisper DX Modular 450-1800
Page 3-20
Pre-installa
tion
CAUTION : A flush inlet thru-hull fitting
will cause a vacuum as the boat is under
way, and will cause loss of feed water
flow, cavitation of the feed pump and
high pressure pump resulting in continual
system shut down.
CAUTION : If the thru-hull fitting is placed
in a position on the underside of the
hull that allows air to continually enter
the thru-hull fitting, it will cause the
system to continually shut down due to
loss of feed water.
NOTE
: The resulting failure of the system
to remain in operation is attributed to
improper installation, is the liability of the
installer, and is not covered by the Sea
Recovery warranty.
2. Sea Cock Valve ** is used in a ship installation for
safety reasons to close the feed water line during
repair, maintenance, and disuse of the system.
3. Sea Strainer has a clear bowl with bronze body
filter housing containing a cleanable monel
filter screen. The Sea Strainer filters out large
particulate matter and suspended particles that
would otherwise damage the Booster Pump and
prematurely foul the cartridge Prefilter Element.
4. Booster Pump supplies a positive pressure to the
Pre-filters and onward to the High Pressure Pump.
The Booster Pump has a performance curve of 85
Ft Head 35 PSI (2.41 BAR) @ 60 Hz with a feed
water flow of 4.5 GPM (17 LPM).
The resulting pressure at the High Pressure Pump
depends on the final installation configuration and
condition of Prefiltration elements.
5. Low Pressure Transducer #1 Booster Pump Outlet/
1st Prefilter Inlet for line pressure pick up from the
outlet of the Booster Pump to the 1st Prefiltration
component.
6. Plankton Filter *** This optional filter assembly
contains a cleanable ultra fine monel mesh screen.
The mesh screen removes suspended solids
or biological growth such as plankton. It also
provides longer life to the Pre-filter Elements and
in turn provides lower system maintenance costs.
The Plankton Filter is available as a single housing
or dual housing.
7. Multi Media Filter *** This optional filter assembly
contains a back-washable bed of sand and
gravel. The sand traps suspended solids larger
than 30 micron which provides longer life to the
pleated cartridge prefilter elements minimizing
maintenance intervals, maintenance labor, and
filter element cost.
WARNING - PREFILTER ELEMENT
: Do
not use third party prefilter elements, use
only Sea Recovery prefilter elements.
Third party prefilter elements do not
properly fit and the seams fall apart. They
also allow by-pass resulting in extensive
and very costly damage to the High
Pressure Pump as well as premature
fouling of the R.O. Membrane Element(s).
8. Commercial Prefilter takes the place of the Dual
Prefilter. The 5 micron Commercial Prefilter
cartridge element contains 37.5 sq. ft. (3.5 square
meters) of filtering surface area. This oversize
cartridge gives much longer filter element life
greatly extending the time interval between
required maintenance and reduces maintenance
labor and prefilter element replacement cost.
CAUTION - PREFILTER ELEMENT :
Do not use “string wound” or “fiber”
prefilter elements. String wound and
fiber filter elements are designed for the
Photographic Film Developing Industry.
When used in sea water, they will plug
up rapidly in 1/10th or less the time of a
Sea Recovery supplied prefilter cartridge
element. This will cause frequent shut
downs of the system and very frequent
changing which will result in very high
cost of maintenance, and user frustration.
9. Dual Pre-Filter removes suspended solids in two
stages. The feed water passes first through a 20
micron cartridge then a 5 micron cartridge. By
stepping the filtration, both prefilter elements gain
longer life and require less maintenance labor and
prefilter element replacement cost.
10. T-Connector Pressure Differential Pick-up *** is
included with Pressure Differential Transducer
#4 for line differential pressure pick up between
optional prefiltration components to the Low