FLYGT Flygt 3069, Installation, Operation And Maintenance Manual

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NOTICE:
Thermal contacts must never be exposed to voltages higher than 250 V, breaking current
maximum 5 A.
The single phase pumps must be equipped with a starter which has start and run
capacitors.
A specially Flygt designed starter is required for the operation of single phase pumps.
The connection of the motor cable to the starter is shown in the wiring diagram.
1. If thermal contacts are included in the pump installation, then connect the T1 and T2
control conductors to the MiniCAS II monitoring equipment.
If the temperature of the pumped liquid is above 40°C (104°F), then do not connect
the T1 and T2 leads to thermal contacts.
2. Connect the mains leads (L1, L2, L3, and ground (earth)) to the starter equipment.
For information about the phase sequence and the color codes of the leads, see Cable
charts.
3. Check the functionality of the monitoring equipment:
a) Check that the signals and the tripping function work correctly.
b) Check that the relays, lamps, fuses, and connections are intact.
Replace any defective equipment.
4.2.6 Cable charts
Description
This topic contains general connection information. It also provides cable charts that show
connection alternatives for use with different cables and power supply.
WS000509E
L2
L3 L1
L1 L3 L2 T1 T2
Figure 6: Phase sequence
Connection locations
The figures in this section illustrate how to interpret the connection strip symbols.
4 Installation
Flygt 3069 Installation, Operation, and Maintenance Manual 25