FCI Watermakers MAX-Q+, Руководство пользователя и инструкция по установке

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FCI WATERMAKERS, INC. 105 Maintenance & Repair
LOW PRESSURE PUMP / MAINTENANCE & REPAIR
LOW PRESSURE PUMP - ELECTRIC MOTOR
Pump is centrifugal, with a counter clockwise rotation
as viewed from volute end (front) of pump.
Troubleshoot electric motor failure to ensure that any abnormality from
the power, wiring, connections, contactor, 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 the cause or else the replaced or repaired motor will fail again.
FAILURES OF THE ELECTRIC MOTOR MAY BE:
A Bearing failure: Bearings are field replaceable.
B Winding failure: Generally caused by low or high power,
below or above the specified voltage requirements of the
system. This is NOT economically repairable.
C Internal centrifugal switch: Generally caused by mechanical
failure of the switch. Field replaceable.
D Capacitor failure: Generally caused by low power feeding the
motor 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
• Dual voltage.
WARNING
: The feed pump MUST rotate in the COUNTER CLOCKWISE
DIRECTION ONLY Rotating the feed pump in the clockwise direction will cause
extensive damage to it. Never operate the feed 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 feed pump will occur should the power be out of phase.
PROBLEMS & SYMPTOMS APPEARING AND CAUSED
BY THE FEED 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”,