2 electrical installation, 1 important notes, Installation – Lenze 8240 HVAC Series User Manual

Page 28

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Installation

4-4

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4.2

Electrical installation

4.2.1

Important notes

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Mains

Operation of the controller

Notes

With grounded neutral

No restrictions

Observe controller ratings

With isolated neutral

(IT mains)

Operation with recommended mains

filters is not possible

D

Mains filter will be destroyed if ”earth fault”

occurs.

D

Contact Lenze.

With grounded phase

Operation only possible with one

variant

Contact Lenze

DC supply via +U

G

/-U

G

DC voltage must be symmetrical to PE

Controller will be destroyed when grounding

+U

G

conductor or -U

G

conductor.

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