Xylem Aquavar, Instruction Manual

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4 Mechanical Installation
4.1 Pre-installation
4.1.1 Installation site checklist
• The frequency converter relies on the ambient air for cooling. Observe the limitations
on ambient air temperature for optimal operation.
• Ensure that the installation location has sufficient support strength to mount the
frequency converter.
• Keep the manual, drawings, and diagrams accessible for detailed installation and
operation instructions. It is important that the manual is available for equipment
operators.
• Locate equipment as near to the motor as possible. Keep motor cables as short as
possible. Check the motor characteristics for actual tolerances.
– For installations with motor leads longer than 50 feet, use the output filter option to
protect the motor.
• Ensure that the ingress protection rating of the frequency converter is suitable for the
installation environment. IP55 (Type 3R/12) or IP66 (Type 4X) enclosures may be
necessary.
CAUTION:
Ingress protection. IP54, IP55 (Type 3R/12) and IP66 (Type 4X) ratings
can only be guaranteed if the unit is properly closed.
– Ensure all cable glands and unused holes for glands are properly
sealed.
– Ensure that the unit cover is properly closed. Do not leave the
frequency converter uncovered.
– For outdoor enclosures ensure that NEMA 3R drive units are
properly covered with IPC NEMA 3R COVER. Part number 9K715 for
D1 Frame and 9K716 for D2 Frame.
4.1.2 Frequency converter and motor pre-installation check list
• Compare the model number of the unit on the nameplate to what was ordered to
verify the proper equipment.
• Ensure each of the following are rated for same voltage:
– Mains (power)
– Frequency converter
– Motor
• Ensure that the frequency converter output current rating is equal to or greater than
motor service factor current for peak motor performance.
– Motor size and frequency converter power must match for proper overload
protection.
– If frequency converter rating is less than motor, full motor output cannot be
achieved.
4.1.3 General considerations
Tools needed
To perform the mechanical installation, the following tools are needed:
• Drill with 0.39 or 0.47 in (10 or 12 mm) drill.
• Tape measure
• Wrench with relevant metric sockets (0.28–0.67 in (7–17 mm))
4 Mechanical Installation
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