Operation Procedures for Pipeline-Type Heptafluoropropane

　　The piped-type heptafluoropropane system, a type of heptafluoropropane fire suppression system, not only boasts rapid extinguishing speed, non-corrosiveness, and non-conductivity—characteristics unique to heptafluoropropane gas—but also offers exceptional versatility in application scenarios. It can simultaneously protect multiple protected areas, making it ideal for wide-ranging applications; however, it does require the installation of a separate cylinder room.

　　Although the heptafluoropropane fire suppression system can autonomously detect fires and activate automatic extinguishing via smoke and temperature detectors, we still need to understand its activation methods and related operational procedures. This way, in the event of an unexpected incident, we can swiftly put out the fire, prevent it from spreading further, and minimize damage—something we’ll explore today, focusing specifically on the piped-type heptafluoropropane operating system.

　　We need to understand that the piped-type Heptafluoropropane fire suppression system offers three distinct activation methods: automatic control, manual control, and mechanical emergency operation. Additionally, the pre-fabricated fire suppression units installed within the protected area should feature both automatic and manual activation options. Notably, the automatic control system must be equipped with functions for automatically detecting fires and initiating the system accordingly.

　　The automatic control of the fire suppression system should only activate after receiving two independent fire alarm signals from within the protected area. When the automatic control is initiated, a 30-second delay can be set to allow personnel inside the protected area to evacuate and to ensure that fire dampers in the ventilation ducts are closed.

　　In protected areas equipped with raised floors and suspended ceilings, if the spaces beneath the raised floors and within the suspended ceilings also require protection, fire detectors should be installed in these areas.

　　Each protected zone should be equipped with a manual/automatic selection switch, and the manual and automatic positions on the switch must be clearly marked. When the selection switch is in the manual position, a conspicuous warning indicator light should be provided. An emergency stop-and-release device should also be installed at the entrance of the protected zone, complete with measures to prevent accidental operation.

　　The selector valve of the combined distribution system should be opened either before or simultaneously with the discharge of the extinguishing agent. When using gas-driven cylinders as the initiating power source, it is essential to ensure that the system has sufficient gas pressure and meets the required gas consumption for operation and control.

　　The drive control panel for the fire suppression system should be installed in areas frequently occupied by people and positioned as close as possible to the protected zone. The drive control panel must comply with the "General Technical Specifications for Drive and Control Devices of Fixed Fire Suppression Systems" (GA 61—2010).

　　When fire detectors installed within the protected area are directly connected to the drive control panel, the drive control panel should be capable of transmitting the fire alarm signal from the protected area, the extinguishing agent discharge signal, and the system fault signal back to the fire control center. Within the protected area, audible and visual fire alarms should be provided, while outside the protected area, an indicator signal for extinguishing agent discharge should be installed.

　　The installation height for manual operation devices should be 1.5 meters from the ground centerline. The driver control panel must ensure that the front-facing signal display is positioned 1.5 meters above the floor. Sound and light alarm devices are recommended to be installed above the doorframe at the entrance or exit of the protected area.