Huawei SmartLi 2.0 User Manual page 70

SmartLi 2.0
User Manual
● Do not bend or twist the fire-trace tube or bind the tube using cable ties.
● Hold the pipe holding device close to the end to avoid bending the tube during
1.
2.
Step 6 Remove the valve positioning kit, open the valve, reinstall the positioning kit, and
secure it.
● Slowly open the valve. To avoid unexpected blowout, do not quickly open the
● The end pressure gauge of the cabinet is used to determine whether the
Issue 10 (2022-04-30)
WARNING
Otherwise, the tube may be damaged, causing extinguishant leakage.
pipe insertion.
Clamp the end of the fire-trace tube to the threaded nozzle using a pipe
holder or slip-proof gloves.
Tighten the connection nut to 7 N·m using an adjustable torque wrench.
Figure 4-32 Installing the fire-trace tube using a pipe holder
(1) Pipe holder
NO TICE
valve.
pressure of the fire extinguisher cylinder decreases during routine O&M
inspection.
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4 Installation and Cable Connection
(2) Fire-trace tube end (3) Nut
63