Xylem GOULDS e-AB Series, Instruction Manual

Page: 21 / 56

4.3.2 Wire types and ratings
• All cables must comply with local and national standards in terms of section and ambient
temperature.
• To ensure compliance with UL (Underwriters Laboratories) regulations, all power supply
connections must be completed using the following types of copper cables with minimum
resistance 167°F (+75°C): THW, THWN
• Cables must never enter into contact with the motor body, the pump, or the piping.
• The wires that are connected to the power supply terminals and the fault signal relay
(NO, C) must be separated from the other wires by reinforced insulation.
Table 3: Electric connection cables
Smart motor
models
Power supply input cable + PE Tightening torque
Wire numbers x
Max. copper
section
Wire numbers x
Max. AWG
Mains and motor
cable terminals
Earth conductor
103, 105, 107, 111,
115
3 x 0.0032 sq. in
3 x 2.08 mm²
3 x 16 AWG with
ferrules 14 AWG
without
Spring connectors Spring connectors
303, 305, 307, 311,
315, 322
4 x 0.0032 sq. in
4 x 2.08 mm²
4 x 16 AWG with
ferrules / 14 AWG
without
7.1 lbf·in
0.8 Nm
26.6 lbf·in
3 Nm
Control cables
External volt free contacts must be suitable for switching < 10 VDC.
NOTICE:
• Install the control cables separate from the power supply cables and the fault signal relay
cable
• If the control cables are installed in parallel with the power supply cable or the fault signal
relay, the distance between the cables must exceed 8 in (200 mm)
Do not intersect the power supply cables; should this be necessary, a 90° intersection angle
is permitted.
Table 4: Recommended control cables
Smart motor control
cables
Wires number x Max.
copper Section
AWG Tightening torque
All I/O conductors 0.00012–0.0023 sq.in
0.75–1.5 mm²
18–16 AWG 5.4 lbf·in
0.6 Nm
4.3.3 Power supply connection
Electrical Hazard:
Contact with electric components may cause death, even after the unit has been switched
off. Before any interventions on the unit, the network voltage and any other input voltages
must be disconnected for 5 minutes.
CAUTION:
Once powered the system will automatically run and attempt to satisfy the 50 PSI preset
value. To prevent ramp up press the power button directly after connecting power to put into
standby mode.
4 Installation
Smart Pump Range INSTRUCTION MANUAL 19