Replacing A Fire Cylinder - Huawei SmartLi User Manual

SmartLi
User Manual

8.5 Replacing a Fire Cylinder

Prerequisites
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Before the replacement, ensure that the load services are not affected or obtain written consent
from the customer.
Procedure
Step 1 Check the fire cylinder.
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Step 2 Open the front door of the cabinet and switch off the battery circuit breaker. Press and hold
down the POWER ON/OFF button on the battery management module for more than 5s to
power off the cabinet.
Step 3 Turn off the ready switch on the battery management module, remove the bolts that secure the
battery management module, and pull out the module for about 10 cm.
Issue 04 (2019-09-16)
Tools: insulated socket wrench, insulation gloves, Phillips screwdriver, key to the cabinet
door, torque wrench, pipe cutter, and pipe holder
Materials:
Check the fire cylinder and all components for any damage, abrasion, or corrosion.
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If there is any visible abrasion or corrosion, replace the damaged components and
all corroded components.
Check that the valve is closed (vertical to the cylinder).
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− Fill the fire cylinder with extinguishant. The recommended extinguishant is
heptafluoropropane or perfluorohexanone.
Check that the valve is closed (vertical to the cylinder).
Check that the reading of the pressure gauge on the fire cylinder is greater than 1.6 MPa
and that the pointer is in the green zone.
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8 Replacing Parts
88