Optional) Installing Signal Cables - Huawei FusionCol8000-E240 User Manual

FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
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3.4.2 (Optional) Installing Signal Cables

Prerequisites
Signal cables must be routed through protective tubes for protection.
The device can be connected to a smoke sensor, remote startup/shutdown signal,
public alarm signal, and water sensor. The following describes how to connect a
water sensor.
Context
Figure 3-16 Signal cable terminal (using X501 as an example)
Table 3-8 Signal table
No.
1
2
3
Issue 01 (2021-01-30)
Before connecting cables, use a multimeter to measure the input voltage and
ensure that the power supply is disconnected.
All smart cooling products must be securely grounded before being powered
on.
Cables should be securely connected and free of contact with components,
such as the fan.
When laying out cables, ensure that the power cables and signal cables are
reliably separated and that electric and extra low voltage (ELV) cables are
bound separately.
Cable colors in this document are for reference only.
NO TE
The preceding figure shows the arrangement of signal terminals X502, X504, and X505.
X501 X502
Smoke Water sensor
sensor
Smoke Water sensor
sensor
Remote Fresh air
startup/ damper 24 V
shutdown DC
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Copyright © Huawei Technologies Co., Ltd.
3 System Installation (Building Scenario)
X504
Outdoor exhaust air
damper 24 V DC
Outdoor exhaust air
damper GND
Outdoor exhaust air
damper U (feedback)
X505
Indoor return air
damper 24 V DC
Indoor return air
damper GND
Indoor return air
damper U
(feedback)
46