Figure 5-31 Connecting T/H sensors in series
NO TE
● Each unit supports a maximum of twelve T/H sensors outside the unit, including a
maximum of six cold aisle T/H sensors and six hot aisle T/H sensors.
● It is recommended that the total length of the cable required for the T/H sensors
outside the unit be less than or equal to 150 m. If the cable length is greater than 120
m, obtain 12 V DC power from the site to supply power to the T/H sensors that are 120
m or further away from the cabinet. Ensure that the input voltage of each T/H sensor
ranges from 9 V to 16 V.
Step 3 Set DIP switches of the T/H sensors.
Table 5-5 DIP switch settings on T/H sensors
Locatio
n
Display Name
Addre
ss
DIP Switch No.
1
2
3
4
5
6
Air
return
side
Return air 2 temp/
humid
1
ON
OFF
OFF
OFF
OFF
OFF
Outdoor
intake
air
Outdoor intake air
1 temp/humid
31
ON
ON
ON
ON
ON
OFF
Outdoor intake air
3 temp/humid
32
OFF
OFF
OFF
OFF
OFF
ON
Cold
aisle
Cold aisle 1 temp/
humid
11
ON
ON
OFF
ON
OFF
OFF
Cold aisle 2 temp/
humid
12
OFF
OFF
ON
ON
OFF
OFF
Cold aisle 3 temp/
humid
13
ON
OFF
ON
ON
OFF
OFF
Cold aisle 4 temp/
humid
14
OFF
ON
ON
ON
OFF
OFF
Cold aisle 5 temp/
humid
15
ON
ON
ON
ON
OFF
OFF
Cold aisle 6 temp/
humid
16
OFF
OFF
OFF
OFF
ON
OFF
FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
5 System Installation (FDC Scenario)
Issue 03 (2021-04-20) Copyright © Huawei Digital Power Technologies Co., Ltd.
95
