Replacing A Fire Extinguisher Cylinder - Huawei SmartLi 1.0 User Manual

SmartLi 1.0
User Manual

8.5 Replacing a Fire Extinguisher Cylinder

Prerequisites
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Procedure
Step 1 Check the 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 down the POWER ON/OFF button on the battery control unit for more
than 5s to power off the cabinet.
Step 3 Turn off the ready switch on the battery control unit, remove the bolts that secure
the battery control unit, and pull out the module for about 10 cm.
Issue 08 (2022-11-15)
Tools: insulated socket wrench, insulation gloves, Phillips screwdriver, key to
the cabinet door, adjustable torque wrench, pipe cutter, and pipe holder
Materials:
– 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.
– Check that the valve is closed (vertical to the cylinder).
– Fill the fire extinguisher cylinder with extinguishant. The recommended
extinguishant is heptafluoropropane or perfluorohexanone.
NO TICE
Before the replacement, ensure that the load services are not affected or
obtain written consent 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.
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8 Parts Replacement
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