Connecting An Equipotential Pe Cable - Huawei NetCol5000-C Series User Manual

NetCol5000-C030 In-row Chilled Water Smart Cooling
Product
User Manual (Simple Configuration)
Figure 3-35 Electric ports of NetCol5000-C030H7
(1) T/H sensor communication port
J128
(4) Teamwork communication port
J73
(7) PSU
(10) PE2 ground screw of the
electric control box
(13) X104 humidifier inlet/outlet
water valve, conductivity sensor,
high float, and temperature switch
terminals

3.14.3 Connecting an Equipotential PE Cable

If cables are routed from the top, connect the PE cable to the marked position in the upper part
of the cabinet, route the cable out of the hole on the top of the cabinet, and connect the cable
to the external ground system. The resistance between the equipotential PE cable and the
ground is 0.1 ohm.
Issue 09 (2020-01-10) Copyright © Huawei Technologies Co., Ltd.
(2) Display panel
communication port J72
(5) X1.1 and X1.2
remote switch wiring
terminals
(8) X107 water pump
and high/low float
wiring terminals
(11) Manual water drain
switch for the
humidifier
(14) Fan feedback and
control terminal X102
3 Installation
(3) Reserved USB port
(temporarily unavailable)
(6) X2.1 and X2.2 water
sensor switch wiring
terminals
(9) X103 power selection
switch wiring terminal
(12) FAN+ positive fan
wiring terminal, FAN-
negative fan wiring
terminal
(15) X101 temperature
sensor wiring terminal
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