Bell & Gossett P2000452 Series 580 - Manual (Page 13)

Installation
Preinstallation
Precautions
WARNING:
• When installing in a potentially explosive environment, make sure that the motor is properly certified.
• You must earth (ground) all electrical equipment. This applies to the pump equipment, the driver, and
any monitoring equipment. Test the earth (ground) 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 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.
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.
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.
Installation
Series 580 Installation, Operation, and Maintenance Manual 11