Huawei FusionModule1000A40 Commissioning Manual page 46

Prefabricated all-in-one data center

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FusionModule1000A40 Prefabricated All-in-One Data

Center

Commissioning Guide

Figure 7-9 Loop 1 FIRE RELAY indicator on

Step 7 Heat the heat detector using a heating device until the heat detector indicator changes from

blinking once every six seconds to steady on to trigger a heat detector FIRE RELAY alarm.

If 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.

Figure 7-10 Short-circuiting ZONE2+ and ZONE2−

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.

Issue 04 (2020-01-17)

7 System Commissioning

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