Huawei FusionModule1000A20 Maintenance Manual page 132

FusionModule1000A20 CT Solution
Maintenance Guide
Preparations
Tools: Phillips screwdriver, protective gloves
Materials: spare extinguishant control panel
Documents: delivered with the extinguishant control panel
Skill requirement: fire engineer


Figure 5-55 Position of the 2ND STAGE NO terminal
Procedure
Step 1 Switch off the input circuit breaker on the extinguishant control panel.
Step 2 Remove the cables from the battery, and take out the battery.
Step 3 Remove all cables connected to the terminals on the extinguishant control panel.
Step 4 Remove the corrugated pipes and cables from the extinguishant box.
Step 5 Remove the screws using a Phillips screwdriver, and take out the faulty extinguishant control
panel.
Issue 01 (2019-02-25)
For the diagram, see the initial configuration parameter manual for the solution in use.
Before replacing the extinguishant control panel, inform the related administrative
departments of the temporary downtime of the fire extinguishing system. In addition,
remove the cable connected to the 2ND STAGE NO terminal on the extinguishant control
panel to disable the linkage control function. After the extinguishant control panel is
replaced, reconnect the cable to the 2ND STAGE NO terminal on the extinguishant
control panel to enable the linkage control function, and inform the administrative
departments that the system has become operational.
While removing the cables, label the cables with their corresponding port numbers for later connection.
Copyright © Huawei Technologies Co., Ltd.
5 Parts Replacement
125