Sea Recovery SRC Aqua Matic 450-1 Owner's Manual page 125

Aqua Matic Modular 450-1800
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.
Low voltage will also cause the same symptom.
Low voltage is caused by an undersized power
supply or generator, undersized power lead
wires to the System or motor, loose power wire,
or connection at the motor or within the power
supply line, and "burnt" contacts on the motor
starter relay (contactor).
Solutions:
a) Check wiring size and connections to,
from, and in between the Power Supply
and the electric motor. Correct wire size or
any loose wires.
b) Check the capacitor on the motor, and replace
it if it has shorted out.
c) Measure voltage at the motor during attempt
to start it. If voltage drops more than 10%
locate and correct the reason.
d) Check the motor starter relay (contactor) for
"burnt" contacts.
B. The Three Phase (230/380/460 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 Three Phase Electric Motor requires all three
power lines (all three phases) to be operative else
it will "single phase" causing extensive damage to
the motor's internal windings.
Low voltage will also cause the same symptom.
Low voltage is caused by an undersized power
supply or generator, undersized power lead
wires to the System or motor, loose power wire,
or connection at the motor or within the power
supply line, and "burnt" contacts on the motor
starter relay (contactor).
Solutions:
a) Check wiring size and connections to,
from, and in between the Power Supply
and the electric motor. Correct wire size
or any loose wires.
Page 8-10
b) Measure voltage at the motor during attempt
to start it. If voltage drops more than 10%
locate and correct the reason. Cross check
voltage across all 3 power leads.
c) Check the motor starter relay (contactor) for
"burnt" contacts.
C. The Electric Motor makes an unusual "grinding"
sound when operated.
Solutions:
a) Check and replace as necessary the front and
rear bearings.
b) Check to see if the fan is rubbing against the
fan guard.
B) High Pressure Pump:
This High Pressure Pump is a Quintiplex Radial Axial
Positive Displacement Plunger Pump made of high
grade Duplex material specifically designed for sea
water Reverse Osmosis applications. This Pump is
not commercially available. This pump is specifically
manufactured to Sea Recovery specifications.
WARNING: Two similar Pumps are
commercially available. One has a higher
flow rate and the other has a lower flow
rate. Both of these pumps will cause
damage to the Sea Recovery System
because of excess flow or under flow.
The use of any similar pump, not supplied
by Sea Recovery, will either cause
the Electric Motor to fail, or the R.O.
membrane element to prematurely foul.
USE ONLY SEA RECOVERY SUPPLIED
PARTS AND COMPONENTS FOR THE
SEA RECOVERY SYSTEM.
As with all Positive Displacement pumps it must
receive a specified minimum amount of water at a
positive pressure. A vacuum at the inlet of the pump
will cause cavitation and damage. This pump does not
use oil, it is self lubricated with the feed water. Internal
components are designed for 8,000 hours of continual
service in sea water. As with any component exposed
to sea water, use is best.
The Pump is manufactured to very tight tolerance
spacing between moving parts. Any debris entering the
Pump will cause extensive and expensive damage to the
internal parts. The Sea Recovery Prefilter will stop any