Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 10)

10
Section 2 Pre-installation
1. Compare model number to what was
ordered.
2. Ensure each of the following are rated for
same voltage:
• Power line
• Drive
• Option panel
• Motor
3. Ensure that option panel output rating is
equal to or greater than motor total full
load current for full motor performance.
• Motor power size and option panel must
match for proper overload protection.
• If panel rating is less than motor, full motor
output cannot be achieved.
4. Check motor wiring:
• Any disconnect between drive and motor
should be interlocked to drive safety
interlock circuit to avoid unwanted drive
trips.
• Do not connect power factor correction
capacitors between drive and motor.
• Two speed motors must be wired
permanently for full speed.
• Y-start, -run motors must be wired
permanently for run.
Pre-installation Check Installation Site Check
• Because the option panel relies on the
ambient air for cooling, it is important to
observe the limitations on ambient air
temperature. Derating starts above 40°C
(104°F) and 3300 feet (1000m) elevation
above sea level.
• It is important with backpanel mounted units
to check support strength. Make sure that
the proper mounting screws or bolts are
used.
• Keep the option panel interior free from dust
and similar dirt. In construction areas, if the
unit is not powered, provide a protective
covering. It is important to ensure that the
components stay as clean as possible. It
may be necessary to clean the interior once
construction is completed.
• Keep wiring diagrams, drawings and
manuals accessible for detailed installation
and operation instructions. It is important
that the manuals be available for equipment
operators.