Huawei FusionModule1000A40 ICT Solution Maintenance Manual page 156

FusionModule1000A40 ICT Solution
Maintenance Guide
Preparations
Tools: protective gloves, step ladder, Phillips screwdriver
Materials: spare heat detector
Document: fire extinguishing device layout diagram (CE)
Skill requirement: fire engineer
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Procedure
Step 1 Disconnect the battery cables, and switch off the input circuit breaker of the extinguishant
control panel.
Step 2 Hold the heat detector, and rotate it counterclockwise to remove it from the base.
Figure 4-95 Removing a heat detector
Step 3 Remove cables from the base using a Phillips screwdriver.
Step 4 Remove the screws on the base using a Phillips screwdriver, and remove the base.
Step 5 Install the new base to the same position, and reconnect the cables.
Step 6 Insert the new heat detector into the base, and rotate it clockwise until it locks in.
Issue 01 (2019-03-05)
For the diagrams, see the initial configuration parameter manual for the solution in use.
Before replacing the heat detector, inform the related administration department of the
temporary downtime of the fire control system. After the replacement, inform the
administration department that the system has become operational.
As a terminal resistor is connected to the last heat detector in the loop in parallel, remove the terminal
resistor from the faulty heat detector, and connect the resistor to the new heat detector when you replace
the heat detector.
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4 Parts Replacement
149