Huawei FusionModule1000A20 Commissioning Manual page 57

FusionModule1000A20 Prefabricated All-in-One
Data Center
Commissioning Guide
Figure 7-4 Short-circuiting ZONE2+ and ZONE2−
Figure 7-5 Loop 2 FIRE RELAY indicator on
Step 8 Check whether the electrical actuator has been activated.
Step 9 Commission the pneumatic switch.
1.
Issue 03 (2022-12-15)
NO TE
If no heating device is available, you can also short-circuit ZONE2+ and ZONE2− terminals
on the extinguishant control panel using a 470-ohm resistor delivered with the
extinguishant control panel to simulate and trigger a heat detector FIRE RELAY alarm. After
short-circuiting the ZONE2+ and ZONE2− terminals, remove the resistor if an alarm has
been triggered.
NO TE
A heat detector loop alarm is triggered, and the loop 2 fire alarm indicator on the
extinguishant control panel is steady on. The horn strobe is triggered, and the warning sign
blinks. The Release Imminent indicator on the extinguishant panel turns on, and the
release countdown starts.
Pull up the reset button on the pneumatic switch to short-circuit the cables
within to simulate an extinguishant release.
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7 System Commissioning
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