● In Auto mode, the Auto/Manual indicator is on. In Manual mode, the Auto/Manual
indicator is o.
● If the status is Manual, the re alarm control panel generates no electromagnetic valve
driving voltage when re alarms from the smoke detector and heat detector are
triggered.
Step 9 Blow smoke towards the smoke detector using a smoke pistol until the smoke
detector indicator changes from blinking once every 6s to steady on to trigger a
smoke detector re alarm.
When a re alarm is triggered:
● The re alarm indicator on the re alarm control panel turns from o to red, and the
re alarm bell rings.
● Do not clear the alarm and proceed to the alarm simulation for the smoke detector.
Step 10 Heat the heat detector using a heating device until the heat detector indicator
changes from blinking once every 6s to steady on to trigger a heat detector re
alarm.
● The re alarm indicator on the re alarm control panel stays red, and the re alarm bell
rings constantly.
● The re alarm horn/strobe is triggered, and the gas release countdown starts. (The
countdown time is congurable and is set to 30s by default.)
Step 11 After the countdown ends, use a multimeter to check the electromagnetic valve
drive voltage generated by the
re alarm control panel.
The re alarm control panel should generate a voltage of 24–27.5 V DC to activate the
electromagnetic valve, and the gas release indicator should turn on at the same time.
Figure 5-2 Measuring the voltage between the two terminals of the
electromagnetic valve
Step 12 Commission the pressure announciator.
FusionDC1000A Prefabricated All-in-One Data
Center
Commissioning Guide (IT Scenario) 5 System Commissioning
Issue 02 (2022-12-15) Copyright © Huawei Digital Power Technologies Co., Ltd. 68
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