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

Page: 128 / 226

Aqua Whisper DX Modular 450-1800
Page 8-4
Maintenance
the cause or else the replacement or repaired motor will
fail again.
Failures of the electric motor may be:
Winding failure. Generally caused by low or
high power, below or above the
specified voltage requirements
of the system. This is Not
economically repairable.
Capacitor failure. Generally caused by low power
feeding the motor and or low
cycles from the power source.
Also caused by rapidly repeating
starting and stopping of the motor.
Field replaceable.
The Electric Motor is 1/2 horse power, Totally Enclosed
Fan Cooled, 2 pole, dual Cycle, and dual Voltage.
WARNING : The Booster Pump MUST
rotate in the COUNTER CLOCKWISE
DIRECTION ONLY Rotating the Booster
Pump in the clockwise direction will
cause extensive damage to it. Never
operate the Booster Pump in the
clockwise direction.
WARNING : When switching from Three
Phase Generator power to Three Phase
Shore power ALWAYS check phases prior
to operating the System else Reverse
Rotation along with extensive damage to
the Booster Pump will occur should the
power be out of phase.
Problems and Symptoms appearing and caused
by the Booster Pump or its Electric Motor:
1. The Single Phase (115 or 230 VAC) Electric Motor
“hums”, pulls starting current (locked rotor)
amperage, does not rotate, and trips the supply
power circuit breaker when attempting to operate
the System.
The Single Phase Electric Motor is a capacitor start
motor. If the motor was started with low voltage,
a drop in voltage during starting, and if this
was repeated several times in rapid concession
the capacitor will short out. Without the aid of
a working capacitor the motor will “hum”, pull
starting current (locked rotor) amperage, not
rotate, and trip the supply power circuit breaker
when attempting to operate the System.
and is not covered by the Sea Recovery
warranty. Plumb the Sea Recovery System
to the “bottom” of such feed water
arrangements to ensure a continual air free
supply of feed water to the system.
2. Sea Cock Valve: Non Sea Recovery component.
The packing and connections of the Inlet Sea Cock
Valve must be tight and must properly seal. Clean
the valve cavity of debris or replace the seal and
seat or the entire valve, as required. This section
is under a vacuum condition while operating the
system. Loose fittings or a worn seal will allow
air to enter the Sea Recovery system causing
continual shut down due to subsequent low feed
water pressure.
3. Inlet Connection: Replace if damaged.
4. Inline Vacuum / Pressure Gauges: If the Vacuum/
Pressure gauge needle does not move; or does not
register proper vacuum or pressure this may be
caused by a plugged orifice. The Vacuum/Pressure
Gauges have a very small orifice at the bottom
of the pipe fitting end. This orifice can become
plugged with debris or corrosion. Using a small
diameter wire clean the debris from the orifice.
Replace the gauge if cleaning of the orifice does
not restore functionality.
5. Sea Strainer: Keep the mesh screen free and clear
of debris. When the mesh screen is clogged, it
results in a low-pressure condition causing system
shut off. This section is under a vacuum condition
while operating the system. If the Sea Strainer’s
bowl is loose or if the O-ring seal is worn or not
properly seated, air will enter the system causing
continual shut down due to subsequent low feed
water pressure.
6. Booster Pump: (centrifugal; counter clockwise
rotation as viewed from volute end {front end}
of pump)
A. Electric Motor:
Troubleshoot electric motor failure to ensure that any
abnormality from the power, wiring, connections,
contactors, or control circuit are not at fault or at cause.
If the electric motor has failed, it will require repair.
However, depending upon failure, replacement may be
more cost effective than repair. If failure of the motor is
due to external source, not the motor itself, then correct