Xylem Goulds AquaBoost VS, Инструкция по эксплуатации

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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 ground (earth) wire to the ground (earth) 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.
5.1.2 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.
System pressure switches for constant speed units
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 simplex unit has one switch and the duplex unit has two switches: one for each pump.
Each switch is piped to the discharge piping.
Two adjusting screws are located on the top of the control. Facing the switch, the screw
on the right-hand side sets the cutout pressure. Make this adjustment first.
5 Commissioning, Startup, Operation, and Shutdown
22 AquaBoost VS Pumping Packages INSTRUCTION MANUAL