Xylem AquaBoost CS and VS Pumping Packages - Manual (Page 32)

Check Checked
Check that the pump rotation is correct.
Final piping checklist
Check Checked
Check that the bypass valve is closed, if used.
Check that the piping is properly supported. This prevents strain on the unit.
Electrical wiring and control checklist
WARNING:
• Electrical shock hazard. Conduit grounds are not adequate. You must attach a separate
earth (ground) wire to the earth (ground) lug provided in the enclosure in order to avoid
potential safety hazards. Failure to follow these instructions can result in serious personal
injury, death, or property damage.
• Always disconnect and lock out power to the package and the driver before you perform
any installation or maintenance tasks. Failure to disconnect and lock out driver power will
result in serious physical injury.
NOTICE:
Electrical connections must be made by certified electricians in compliance with all
international, national, state, and local rules.
Check Checked
Check that the feeder line voltage corresponds to the unit voltage. Check the unit
nameplate or motor terminal connection.
Check that the feeder wires are correctly sized according to local and NEC codes.
Final adjustments
Make the final adjustments on these adjustable devices in order to match the exact system
requirements.
Low-suction pressure switch (optional)
WARNING:
Always disconnect and lock out power to the package and the driver before you perform
any installation or maintenance tasks. Failure to disconnect and lock out driver power will
result in serious physical injury.
The pressure switch is piped into the suction line. An adjusting dial is located inside of the
control. This adjustment controls the low-suction cutout. The differential pressure setting is
fixed at 1.5 psi. Therefore cut-in pressure will be the switch setting plus 1.5 psi.
Although the scale is calibrated in psi, it may not correspond exactly to the actual suction
gauge indication. Therefore, for critical installations, the setting should be adjusted
according to the gauge reading. The approximate settings should be set prior to placing
the unit in operation in order to suit the pressure conditions at the installation.
Commissioning, Startup, Operation, and Shutdown
30 AquaBoost CS and VS Pumping Packages Installation, Operation, and Maintenance Manual