Bell & Gossett 176R0649C Technologic 502 Series Pump Controller - Manual (Page 29)

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Inspection Prior to Start Up
Before applying power to the unit, inspect the entire
installation as detailed in Table 4-1.
Table 4-1. Inspection Prior to Start Up
CHECKED BY:__________________________ DATE:__________________
Inspect For Description
3
Auxiliary equipment
Look for auxiliary equipment, switches, disconnects, or input fuses/circuit
breakers that may reside on input power side of drive or output side to motor.
Examine their operational readiness and ensure they are ready in all respects
for operation at full speed. Check function and installation of pressure
sensors or encoders (etc.) used for feedback to drive. Remove power factor
correction caps on motor(s), if present.
Cable routing
Ensure that input power, motor wiring and control wiring are in three separate
metallic conduits for high frequency noise isolation. Failure to isolate
power, motor and control wiring could result in less than optimum drive and
associated equipment performance.
Control wiring
Check for broken or damaged wires and connections. Check the voltage
source of the signals, if necessary. The use of shielded cable or twisted pair
is recommended. Ensure the shield is terminated correctly.
EMC considerations Check for proper installation with regard to electromagnetic capability.
Environmental conditions See equipment label for the maximum ambient operating temperature limits.
Temperature is not to exceed 104F (40ºC). Humidity levels must be less than
95% non-condensing.
Fan clearance Cooling fan are located below the drive and require sufficient clearance for
fan removal. See the installation drawing supplied with the unit for clearance
requirements.
Proper clearance Units require top and bottom clearance adequate to ensure proper air flow for
cooling in accordance with the unit size.
Fusing and circuit
breakers
Check that all fuses are inserted firmly and in operational condition and that
all circuit breakers are in the open position.
Grounding The equipment requires a dedicated ground wire from its chassis to the
building ground. It is highly recommended that the motor be grounded to
the backpanel chassis. The use of conduit or mounting of the backpanel to
a metal surface is not considered a suitable ground. Check for good ground
connections that are tight and free of oxidation.
Input and output power
wiring
Check for loose connections. Check for proper fusing or circuit breakers.
Panel interior Equipment interior must be free of dirt, metal chips, moisture, and corrosion.
Check for harmful airborne contaminates such as sulfur based compounds.
Switches Ensure that all switch and disconnect settings are in the proper position.
Vibration Look for any unusual amount of vibration the equipment may be subjected to.
The panel should be mounted solidly or use shock mounts as necessary.