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

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Aqua Whisper DX Modular 450-1800
Page 9-10
Troubelshooting
receive a specific flow at a minimum pressure
else cavitation will occur. Check to ensure that
the Booster Pump is delivering at least 4.5 U.S.
Gallons (17 Liters) Per Minute of feed water at 10
to 40 PSI (69 to 276 kPa) at the Inlet of the High
Pressure Pump. Note: Systems operating on 50 Hz
power will deliver 3.75 U.S. Gallons (14.2 Liters)
Per Minute of feed water.
Solutions
: If Feed Water Flow and Pressure into
the High Pressure Pump are within minimum
specifications, and if the electric motor is rotating
at the proper rotation (the proper cycles are
present from the power source) yet the High
Pressure Pump has lost Flow and or Pressure then
return the High Pressure Pump to Sea Recovery
for servicing.
f) Leaks between Pump and Motor
The High Pressure Pump leaks water between the
pump and motor.
The HP Pump has a ceramic and carbon seal.
Ceramic and carbon seals will weep if the pump is
not operated for extended periods of time. When
used regularly the seal will give approximately
8,000 hours of use. The seal continually wears
during use and must be replaced approximately
every 8,000 hours or at the sign of leakage.
Solution
: Return the High Pressure Pump to Sea
Recovery for service and Seal replacement.
g) Knocking Noise
The High Pressure Pump makes an unusual “very
loud knocking” noise.
All positive displacement pumps will make a
very loud knocking noise if they do not receive
sufficient flow at a positive pressure. This
knocking noise results from cavitation which
is caused by insufficient feed water flow at an
insufficient pressure.
Solutions : Service the Prefiltration Section
(Low Pressure Section) of the System. Check all
components between the Inlet Thru-Hull Fitting
and the Inlet of the High Pressure Pump to
determine what is causing the loss in feed water
flow and pressure to the High Pressure Pump.
21) HIGH PRESSURE HOSE
The High Pressure Hose has been assembled with crimp
fittings by Sea Recovery. The High Pressure Hose is NOT
The pump will make a grinding noise if its drive
shaft has been forced into the pump body. The
Electric Motor and Pump are coupled with a “Flex
Coupler” specially designed for use with this
specialized pump. Never replace the Flex Coupler
with another make or style. ALWAYS leave 3/32
in. (2mm) spacing between the two mating Flex
Couplers. ALWAYS ensure that the Safety Bell
Housing attached to the electric motor and the
pump seats evenly on both ends.
Internal spacing of moving components within the
High Pressure Pump hold to very tight tolerance.
Any debris larger than 10 micron entering the
High Pressure Pump will cause abrasion to the
pump’s internal parts, and will cause an audible
grinding noise. Hard debris, such as sand or metal,
will cause the pump to “freeze up” and will cause
extensive damage to the internal parts of the pump.
If the System incorporates a Multi Media Filter
use caution to not allow sand to enter the High
Pressure Pump. When changing Prefilter Elements
use caution to not allow debris to enter the High
Pressure Pump.
Damage to the High pressure Pump caused
by debris is the responsibility of the person
performing maintenance to the System, is the
liability of the person performing maintenance
to the System, and is not covered by the Sea
Recovery warranty.
Solutions
: Check spacing between the motor’s and
pump’s flex coupler. Spacing must be minimum
3/32 in. (2mm) and maximum 1/8 in. (3mm).
Check Safety Bell Housing to ensure it is flush and
secured to both the motor and pump.
Check Pump for signs of foreign debris entering
the inlet.
e) Decreased Pressure
The High Pressure Pump flow and or pressure
have decreased from normal.
As with all High Pressure Pumps, over time of
operation flow and pressure will decline due to
internal wear. Under normal use and care no
significant pressure or flow loss will occur for
8,000 hours of operation or longer.
Do not confuse low feed water flow and low
feed water pressure with a High Pressure Pump
problem. All positive displacement pumps must