Optional) Connecting The T/H Sensors Outside The Unit - Huawei NetCol8000-E220 User Manual

NetCol8000-E220 Modular Indirect Evaporative
Cooling System
User Manual
Figure 4-43 Connecting communications cables
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4.11.6 (Optional) Connecting the T/H Sensors Outside the
Unit
Context
The T/H sensors outside the unit are used to detect the temperature and humidity
of the cold and hot aisles. The installation position can be determined based on
the site requirements. It is recommended that the sensors be deployed near heat
sources, or near places that lack cooling air. Do not let the sensors face the air
outlet vent of the unit.
Procedure
Step 1 Connect the cable of T/H sensor 1 outside the unit to the RS485/12V port on the
main control module.
Step 2 Connect other T/H sensors outside the unit in series to the port of T/H sensor 1
outside the unit.
Figure 4-44 Connecting T/H sensors in series
Issue 10 (2024-01-30) Copyright © Huawei Digital Power Technologies Co., Ltd.
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