● Provides a signal input port for gas release conrmation (onsite pressure
feedback). The gas release conrmation mode can be set by users. There are
two modes available: onsite pressure feedback and electromagnetic valve
drive.
● Allows the system to identify states such as fault, re alarm, and gas release,
and provides the gas release indicator drive, re alarm horn/strobe drive, and
alarm bell drive.
● Provides the single-point test function for detectors, making the working
status and test data of detectors intuitive.
● Allows you to set the working status of the area control unit to manual or
automatic.
● Provides a 4.3-inch color LCD, and working status printer.
Table 7-3 Fire alarm control panel
specications
Item Specications
AC input power ≤ 120 W
AC input voltage 220 V AC±20%
DC backup
power
Voltage 24 V DC
Electrical energy 7.0 Ah
Capacity Number of detector
loops
Two loops: one loop connected to the
common heat detector and the other
connected to the smoke detector
Number of detectors
connected to each
loop
≤ 20 (common detectors)
Wire system of the detector loop Two-wire system
Length of the detector loop ≤ 1000 m
Relay contact capacity 7 A, 24 V DC for all relays
Output loop current limiting for the
electromagnetic valve
≤ 3 A
Output loop current limit for other
drivers
≤ 1 A
7.3.2 Heptauoropropane Automatic Fire Extinguisher
When the FusionDC1000 catches re, a lot of smoke is generated and the
temperature rises sharply. The smoke detector and heat detector send
re alarm
signals to the re alarm control panel, which generates an electromagnetic valve
start voltage to start the electromagnetic valve of the
re cylinder. Then the re
cylinder valve is opened, and extinguishant is released into the protected zone.
FusionDC1000A Prefabricated All-in-One Data
Center
Product Description (IT Scenario) 7 Fire Extinguishing System
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 96
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