Huawei FusionDC1000A Installation Manual page 90

FusionDC1000A Prefabricated All-in-One Data
Center
Installation Guide (IT Scenario)
Step 4 Screw the pressure switch to the container valve.
Figure 8-20 Installing the pneumatic switch
Step 5 (Optional) Install the electrical actuator.
Do not install the electrical actuator when installing the fire cylinder for the first time. Install
the electrical actuator when commissioning the fire extinguishing system.
1.
Issue 01 (2021-04-20)
Figure 8-19 Positions of the threaded adapter and high-pressure hose
(1) Threaded adapter
NO TE
Wrap the pneumatic switch connector with sealing tape to ensure air tightness.
NO TE
Verify that the electrical actuator ejector is reset. If the ejector is not reset,
press down the ejector, as shown by (1) in the figure. (2) in the figure shows
the effect after the ejector is pressed down.
NO TICE
– If the ejector is not pressed down, extinguishant may be released.
– The electrical actuator ejector is 11 mm long before being pressed down,
and 7 mm long after being pressed down.
Copyright © Huawei Technologies Co., Ltd.
8 Installing Devices Inside the Pre-fab. Module
(2) High-pressure hose
83