Xylem e-1532 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.
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 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.
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.
Do not install and operate the equipment in closed
systems unless the system is constructed with
properly-sized safety devices and control devices.
Acceptable devices:
• Pressure relief valves
• Compression tanks
• Pressure controls
• Temperature controls
• Flow controls
If the system does not include these devices, consult the
engineer or architect in charge before you operate the pump.
Take into consideration the occurrence of unwanted
noise and vibration.
The best pump location for noise and vibration absorption is
on a concrete floor with subsoil underneath.
If the pump location is overhead, undertake special
precautions to reduce possible noise transmission.
Consider a consultation with a noise specialist.
When possible, locate the pump below the fluid
level.
This facilitates priming, ensures a steady flow of liquid, and
provides a positive suction head on the pump.
4 Installation
12 Series e-1531 and e-1532 INSTRUCTION MANUAL