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FusionCol8000-E240 Modular Indirect Evaporative
Cooling System
User Manual
7.4.2 (Optional) Setting the Pressure Difference Control
Prerequisites
If the differential pressure sensors are installed, perform the following operations
accordingly. If the differential pressure sensors are not installed, skip this section.
Procedure
Step 1 On the home screen, choose Settings > System Settings > Indoor fan, set Air-
side differential pressure sensor type to 0~125 Pa comm port.
Step 2 Set Indoor fan control type to Pressure diff ctrl.
Step 3 Change the other parameters based on the following instructions.
Parameter
Indoor fan control
type
Indoor fan pressure
difference setpoint
Air-side differential
pressure sensor type
Min indoor fan speed
Max indoor fan speed
----End
7.4.3 (Optional) Setting Teamwork Parameters
Prerequisites
The teamwork group number and addresses for the units have been set as follows:
●
Issue 03 (2021-04-20)
Teamwork group No.: Group the units in same aisle or adjacent areas as one,
that is, assign one teamwork group number for them. At most four teamwork
groups can be assigned (1–4).
Copyright © Huawei Digital Power Technologies Co., Ltd.
Description
● Return/supply air temperature difference proportion
control: controls the indoor fan speed based on the
proportion of temperature difference between
return air and supply air.
● Return/supply air temperature difference control:
controls the indoor fan speed based on the
temperature difference between return air and
supply air.
● Pressure difference control: controls the indoor fan
speed based on the pressure difference.
Specifies the control value of indoor fan pressure
difference.
Select the proper differential pressure sensor type
based on the measurement range of the differential
pressure sensor.
Specifies the minimum rotational speed of the indoor
fan.
Specifies the maximum rotational speed of the indoor
fan.
7 Power-On Commissioning
116
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