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SmartLi 1.0
User Manual
8.5.5 Replacing a Fire Extinguisher Cylinder
Prerequisites
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Procedure
Step 1 Check the new fire extinguisher cylinder.
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Step 2 Open the front door of the cabinet and switch off the battery circuit breaker. Press
and hold the POWER ON/OFF button on the BCU for more than 5s to power off
the cabinet.
Step 3 Remove the fire extinguisher cylinder based on the cabinet installation mode.
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Step 4 Turn off the ready switch on the BCU, remove the bolts that secure the BCU, and
pull it out for about 10 cm.
Issue 09 (2023-03-26)
Tools: insulated socket wrench, insulated gloves, Phillips insulated torque
screwdriver, key to the cabinet door, adjustable torque wrench, pipe cutter,
and pipe holder
Materials:
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Check the fire extinguisher cylinder and all components for any damage,
abrasion, or corrosion. If there is any visible abrasion or corrosion, replace
the damaged components and all corroded components.
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Check that the valve is closed (vertical to the cylinder).
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Fill the fire extinguisher cylinder with extinguishant. The recommended
extinguishant is heptafluoropropane or perfluorohexanone.
NO TICE
Before the replacement, ensure that the loads are not affected or a
written consent is obtained from the customer.
Check that the valve is closed (vertical to the cylinder).
Check that the pointer of the pressure gauge on the fire extinguisher cylinder
is in the green zone.
If the cabinet is installed against a wall, remove the fire extinguisher cylinder
from the front of the SmartLi cabinet by performing
If the cabinet is not installed against a wall, remove the rear cover from the
SmartLi cabinet and remove the fire extinguisher cylinder from the rear of the
SmartLi cabinet by performing
Copyright © Huawei Digital Power Technologies Co., Ltd.
Step 8–Step 14
and
8 Maintenance
Step 4–Step
18.
Step 17–Step
18.
116
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