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FusionCol8000-E260 Modular Indirect Evaporative
Cooling System
Quick Guide (FDC Scenario)
Tab
System
Settings
Issue 01 (2022-06-30)
Parameter
Contact type for
exhaust air damper
open
Exhaust air damper
close mechanism
Exhaust air bypass
damper
Dual power supply
setting
Copyright © Huawei Digital Power Technologies Co., Ltd.
11 Power-On Commissioning
Description
● Closed: dry contact signal for an air
damper exception alarm; closed:
normal; open: alarm (For a
normally open air damper, set
Contact type for exhaust air
damper open to Closed.)
● Open: dry contact signal for an air
damper exception alarm. Closed:
alarm; open: normal (For a
normally closed air damper, set
Contact type for exhaust air
damper open to Open.)
NOTE
This parameter is displayed when
Exhaust air damper is set to DO Ctrl.
● Close for fans: The fire dampers
and air dampers are open or closed
depending on whether fans are
started or shut down.
● Close for system shutdown: The fire
dampers and air dampers are open
or closed depending on whether the
unit is started or shut down.
● Close for fire: The fire dampers are
closed only when a smoke or fire
alarm is generated. By default, the
fire dampers are open.
NOTE
This parameter is displayed when AO
Ctrl or DO Ctrl is selected for Exhaust
air damper.
● Disable: The antifreezing function
of the heat exchanger core is
disabled.
● AO Ctrl: The antifreeze function of
the heat exchanger core will be
enabled if you select AO Ctrl.
● Primary power only: Only the active
power supply is available.
● Primary power first: The active
power supply is preferred.
● Backup power first: The standby
power supply is preferred.
● Mutual backup: Two power supplies
are in mutual backup mode.
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