Xylem hydrovar, Installation, Operation And Maintenance Manual

Page: 31 / 116

6.3 Wire type and ratings
• All wiring must comply with local and national regulations regarding cross section and
ambient temperature requirements.
• Use cables with a minimum heat resistance of +70 °C (158 °F); to obey the UL
(Underwriters Laboratories) regulations, it is recommended that all power connections
be made with a minimum 75°C rated copper wire of the following types: THW, THWN.
Table 2: Recommended power connections cables
HVL Power supply input cable + PE Motor output PE
Wire numbers x Max.
copper section
Wire numbers x Max.
AWG
Wire numbers x Max.
copper section
Wire numbers x Max.
AWG
2.015 3 x 2mm
2
3 x 14AWG 4 x 2mm
2
4 x 14AWG
2.022
2.030
3 x 6mm
2
3 x 10AWG 4 x 6mm
2
4 x 10AWG
2.040
3.015
4 x 2mm
2
4 x 14AWG 4 x 2mm
2
4 x 14AWG
3.022
3.030
4 x 6mm
2
4 x 10AWG 4 x 6mm
2
4 x 10AWG
3.040
3.055
3.075
4 x 16mm
2
4 x 5AWG 4 x 16mm
2
4 x 5AWG
3.110
4.015
4 x 2mm
2
4 x 14AWG 4 x 2mm
2
4 x 14AWG
4.022
4.030
4.040
4.055
4 x 6mm
2
4 x 10AWG 4 x 6mm
2
4 x 10AWG
4.075
4.110
4.150
4 x 16mm
2
4 x 5AWG 4 x 16mm
2
4 x 5AWG
4.185
4.220
Table 3: Tightening torques for power connections
HVL
Tightening torque
Mains and motor cable terminals
Earth conductor
Nm lb-in Nm lb-in
2.015 ÷ 2.022
3.015 ÷ 3.022
4.015 ÷ 4.040 0.8 7.1 3 26.6
2.030 ÷ 2.040
3.030 ÷ 3.055
4.055 ÷ 4.110 1.2 10.6 3 26.6
3.075 ÷ 3.110
4.150 ÷ 4.220 1.2 10.6 3 26.6
6 Electrical Installation
HVL 2.015-4.220 Installation, Operation, and Maintenance Manual 29