Xylem Bell & Gossett e-80SCXL Series, Инструкция по эксплуатации

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4 Installation
4.1 Preinstallation
Precautions
WARNING:
• When installing in a potentially explosive environment, make sure that the motor is
properly certified.
• You must ground (earth) all electrical equipment. This applies to the pump equipment,
the driver, and any monitoring equipment. Test the ground (earth) lead to verify that it is
connected correctly.
• Motors without built-in protection must be provided with contactors and thermal overload
protection for single-phase motors, or starters with heaters for three-phase motors. (See
the nameplate on the drive unit to select properly-sized overloads.)
NOTICE:
Supervision by an authorized Xylem representative is recommended to ensure proper
installation. Failure to do so may result in equipment damage or decreased performance.
Evaluate the installation in order to determine that the Net Positive Suction Head Available
(NPSH
A
) meets or exceeds the Net Positive Suction Head Required (NPSH
R
), as stated by
the pump performance curve.
4.1.1 Pump mounting guidelines
Series e-80SCXL pumps can only be mounted with the motor shaft vertical (motor shaft
down).
CAUTION:
The pump and motor assembly must be properly supported during this procedure to prevent
the pump unit or motor assembly from falling. Failure to properly support the pump and
motor assembly could result in personal injury and or property damage.
4.1.2 Pump location guidelines
WARNING:
Assembled units and their components are heavy. Failure to properly lift and support this
equipment can result in serious physical injury and/or equipment damage. Lift equipment
only at the specifically identified lifting points. Lifting devices such as eyebolts, slings, and
spreaders must be rated, selected, and used for the entire load being lifted.
Guideline Explanation/comment
Keep the pump as close to the liquid source as
practically possible.
If the pump is not on a closed system, locate the
pump so that the fewest number of bends or elbows
in the suction pipe are needed.
This minimizes the friction loss and keeps the
suction piping as short as possible.
Make sure that the space around the pump is
sufficient.
This facilitates ventilation, inspection, maintenance,
and service.
If you require lifting equipment such as a hoist or
tackle, make sure that there is enough space above
the pump.
This makes it easier to properly use the lifting
equipment and safely remove and relocate the
components to a safe location.
Protect the unit from weather and water damage
due to rain, flooding, and freezing temperatures.
This is applicable if nothing else is specified.
4 Installation
Series e-80SCXL INSTRUCTION MANUAL 11