I N S T A L L A T I O N
Installation – step 5
Power supply installation
Electrical Warning
Risk of electric shock
.
Disconnect power supply before installa on or service.
Power supply connec on must be done by a trained and qualified electrician.
Any work related to power supply installa on of this humidifier must comply with local code
and regula on regarding safety and preven on of accidents.
General guidelines for power supply installation
Power supply wiring conductors must be copper only and rated for 105 °C.
Refer to the above current rated to determine the appropriate wire sizes as well as conduit
size and fused disconnect requirements.
The earth must be made by solid metal to metal connec ons.
Ground wire should be same size as power wiring.
L
N
GND
Figure 31 – 1 phase power supply
connec on
L1
L2
L3
GND
Figure 32 – 3 phases power supply connec on
L1
L2
L3
GND
(by others)
Max size wire
gauge: 2/0
AWG
Figure 33 – 3 phase power supply connec on
for IER24-208/3; IER34-208/3 and IER31-480/3
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