Cabinet HFC-227ea fire extinguishing Device User Book

《Safety Warnings》

The following safety requirements must be observed at all times to ensure safe handling, storage, and operation of the pressurized storage cylinders:

·  Cylinder Transportation: Cylinders must be kept in an upright position during transportation and securely fixed. Rolling or dragging cylinders on the ground is strictly prohibited. Use trolleys, forklifts, or similar safe handling tools for transportation.

 

·  Operation: Cylinders must not be dropped or subjected to direct, forceful impacts with each other.

 

·  Storage: When storing cylinders individually, they must be kept in an upright position, secured against potential impacts, and properly fixed in place.

Warning: Improper handling of pressurized storage cylinders is extremely dangerous and can result in violent discharge, causing personal injury and property damage. Before operating the product, operators must undergo professional training to understand the safety procedures for handling cylinders, including proper methods for installation, transportation, refilling, and connection to critical equipment.

 

Properly read, understand, and follow the operation and maintenance procedures outlined in this manual.
The following procedures must be followed step by step to prevent personal injury or property damage.

Safety Pin for Electromagnetic Actuator:

The safety pin is designed to prevent accidental valve activation caused by shocks or vibrations during transportation, installation, and commissioning.
Before commissioning and putting the system into use, the safety pin on the electromagnetic actuator must be removed, as failure to do so may result in the valve failing to start or becoming damaged.

Anti-Discharge Protection Cap for Container Valve:

The anti-discharge protection cap is designed to prevent accidental valve discharge caused by shocks or vibrations during refilling, transportation, installation, and commissioning.
Before commissioning and putting the system into use, the anti-discharge protection cap must be removed. Failure to remove the cap may result in the container valve failing to open properly, leading to malfunctions or even hazardous situations.

 

Additional Note:
The protective cap is secured to the valve body with a chain to prevent loss. Do not remove the chain intentionally.

The following installation procedures must be strictly followed at all times:

1. Securely install the storage cylinder in its designated fixed position.
2. Only after the cylinder has been securely fixed in place may the anti-discharge protection cap be removed. During maintenance, before removing the cylinder from the system or device, the anti-discharge protection cap must first be installed on the outlet of the container valve.
3. During the installation of the system or device, and prior to system commissioning, it is strictly prohibited to connect the electromagnetic actuator to the container valve (or activation piping). If accidental activation occurs, it can cause severe damage.

Warning: If the anti-discharge protection cap is lost, a new anti-discharge protection cap must be installed on the outlet of the container valve before removing the storage cylinder.

Warning: Failure to comply with these requirements may result in improper operation, leading to severe personal injury and property damage.

1、Introduction to the Cabinet-Type FM200 Fire Suppression System

1.1 System Overview

The Cabinet-Type FM200 fire suppression system uses FM200 (HFC-227ea), a "clean agent" gas, as the fire extinguishing agent. The fire suppression mechanism works by inerting the active free radicals in the flames, achieving chain interruption for fire suppression. The features of FM200 include being colorless, odorless, clean, non-conductive, having low toxicity, high fire suppression efficiency, and no harm to the protected objects, especially with no impact on the atmospheric ozone layer. FM200 has the best overall performance among the first-generation halon replacements.

The Cabinet-Type FM200 fire suppression system produced by our company is a pipe-free fire suppression system. It is a prefabricated system in which the fire extinguishing agent storage device, nozzles, pressure signal devices, and drive components are pre-assembled into a complete set. It is lightweight, movable, and flexible to install, with an aesthetically pleasing appearance that does not disrupt the cleanliness of the protected area.

This system can be directly installed in the protected area without the need for a separate cylinder room. It is characterized by simple installation, low construction costs, and ease of operation. Since the system has no pipeline loss of extinguishing agent, it can directly discharge the agent to the protected area when a fire occurs, resulting in high efficiency and fast response time.

1.2 Application Scope

This cabinet-type system does not require a dedicated cylinder room. The entire cabinet is set up within the protected area and is suitable for smaller protected spaces such as data rooms, archives, valuable item storage rooms, and communication equipment rooms. Multiple cabinet-type systems can be linked to protect larger areas. This system is ideal when a dedicated cylinder room cannot be set up in a building, or when a cylinder room exists but the transport distance is too long and cannot meet engineering design requirements, or when it is inconvenient to install a system pipeline in the protected area.

2. Working Principle

2.1 Working Principle

The cabinet-type fire suppression system is typically used in conjunction with fire detection devices, fire alarm and suppression controllers, emergency start/stop buttons, audible and visual alarms, discharge indicator lights, and other fire safety equipment.

When a fire occurs in the protected area, fire detectors such as temperature and smoke sensors send the fire alarm signal to the controller. The controller then outputs a signal to trigger the related equipment and activates audible and visual alarms.After a delay of 10-30 seconds (adjustable by the controller as needed), the system sends a start signal to initiate the fire suppression procedure, which includes activating the solenoid valve

 

actuator, opening the container valve, and releasing the extinguishing agent to suppress the fire.

In emergency situations, personnel on-site can manually activate the fire suppression system by pressing the start button on the controller or the manual button located in the protected area.

FM200 fire suppression agents can be harmful to the human body above a certain concentration. Therefore, once the fire alarm signal is triggered, personnel inside the protected area should immediately evacuate. After the fire suppression is completed, the area should be properly ventilated before anyone is allowed to re-enter.

The working principle of the Cabinet-Type  FM200（HFC-227ea）fire suppression system 

2.2、Fire Suppression System Activation Control Procedure

3、Basic Performance Parameters of the System

3.1、System Appearance Diagram

3.2、Main Technical Parameters

4、Main Components of the Cabinet-Type FM200 Fire Suppression System

4.1 Enclosure

The cabinet is made of Q235 cold-rolled steel plate, with a surface finish of electrostatic powder coating in an off-white color (customizable upon user request).

 

The cabinet is designed to house components such as storage cylinders, high-pressure hoses, actuators, and cabinet nozzles. The base of the cabinet features anchor bolt holes for securing it in place, while the top has cable entry holes for connecting external equipment.

4.2、The container valve

The container valve is installed on the fire suppressant storage cylinder to seal the agent inside. In the event of a fire, it is typically opened by an electric actuator to release the suppressant and extinguish the fire.

Model_Schematic Diagram and Main Performance Parameters

The container valve can be activated in two ways: electromagnetically and manually. In electromagnetic activation, the solenoid actuator drives a cutter to pierce the valve's diaphragm, opening the container valve to release the extinguishing agent. Manual activation involves pressing the valve's manual button, which punctures the diaphragm to open the valve; this method is used in emergencies.

 

The container valve is equipped with a safety diaphragm (burst pressure of 5.9 MPa) to prevent excessive pressure within the suppressant storage cylinder by releasing pressure and ensuring the cylinder's safety. Under normal conditions, the safety diaphragm remains inactive and only operates under abnormal situations, such as overfilling or elevated ambient temperatures, where it may rupture to relieve pressure.

If the safety diaphragm activates and the cylinder depressurizes, it should be replaced immediately, followed by a sealing test and refilling of the suppressant.

 

When replacing the diaphragm, it is required to use a diaphragm provided by our company that matches the original model and specifications in terms of safety and performance, and has passed testing. Substitutes must not be used arbitrarily.

 

When filling the extinguishing agent, connect the filling port to the gas source, and loosen the compression screw to start filling. After filling is complete, the compression screw must be tightened before removing the filling connector. The filling process must be carried out by qualified professionals.

 

After the container valve has been activated, it must be manually reset and inspected to ensure there are no abnormalities before it can be used again.

4.3、Solenoid Valve

The solenoid valve is installed on the container valve. In the event of a fire, the controller sends an extinguishing command, activating the electromagnet inside the solenoid actuator. This action opens the container valve, releasing the extinguishing agent to carry out fire suppression.

Model_Schematic Diagram and Main Performance Parameters：

 

A safety pin is installed on the solenoid valve (as shown in the figure) to prevent accidental activation of the valve due to collision or vibration during transportation, installation, and testing, which could cause the container valve to leak or malfunction. After on-site installation is completed and before putting the system into operation, the safety pin must be removed; otherwise, the container valve may fail to activate or be damaged.

 

4.4、Nozzle 

The nozzle primarily consists of the nozzle body. The outline is shown below:

The nozzle is installed on the cabinet to spray atomized extinguishing agent, ensuring it is evenly distributed throughout the protected area.

4.5、Signal Feedback Device

The signal feedback device primarily consists of a housing, a connecting base, a microswitch, and a piston rod.

Working principle:
The signal feedback device is connected to the pipeline network. When the extinguishing agent is released, the pressure in the pipeline pushes the piston of the signal feedback device, activating the microswitch. This causes the indicator light on the fire alarm control panel to illuminate, indicating that the system has been activated.

The outline is shown below:

After each use, the signal feedback device must be maintained and inspected. It can only be used again after resetting.Reset procedure:Use a screwdriver to loosen the fixing screw and relax the steel ball spring. Remove the cover and press the piston to reset it. Then, tighten the screw and reinstall the cover.

After installation, the signal feedback device must be thoroughly inspected at least once a year. It can only be used if no abnormalities are found. The inspection must be carried out by qualified professionals.

4.6、Connecting Hose

The connecting hose is the pipeline between the container valve and the nozzle. A pressure signaler seat is welded at the elbow, allowing for the installation of a pressure signaler. It mainly consists of a steel wire braided hose and hose fittings.

The outline and dimensions of the connecting hose (which can be custom-made based on actual needs) are as follows:

4.7、Wiring Instructions

5、Operation and Maintenance of the Fire Suppression System

1、After the system installation is completed, it should be inspected, tested, and debugged according to the design specifications and national standards. It can only be put into use after passing the acceptance inspection.

 

2、The system should be regularly inspected and maintained by personnel who have received professional training and passed the qualification exam. Any issues identified during the inspection should be addressed promptly. The user unit should establish technical records for the system equipment, detailing usage conditions, maintenance, inspections, and tests.

 

3、Daily Maintenance of the FM-200 Fire Extinguishing System (during operation):

 

(1) Keep the protected area and control room clean, dry, and well-ventilated.

(2) Ensure that the fire extinguishing system and fire alarm control panel are clean and free of dust.

(3) The safety pin and lead seal of the actuator should be intact and undamaged.

(4) Inspect the system nameplate and warning signs, ensuring they are undamaged, clean, and clearly visible.

4、 The system should be inspected twice a month. The inspection contents and requirements should comply with the following provisions:

 (1) Perform an appearance check of all system components. The components should show no signs of collision, deformation, or other mechanical damage. The surface should be free from rust, the protective coating should be intact, the nameplate should be clear, and the protective cover, lead seal, and safety signs on the manual operation device should be complete.

(2) The installation positions of all system components should not be obstructed by other objects or interfere with their normal operation.

(3) The indicator lights on the control panel should function properly, all switches should be in the correct positions, and the wiring should be securely connected with no looseness.

(4) The surface of the fire detectors should be kept clean, free from any scratches, oil stains, or paint that may interfere with or affect the performance of the fire detectors.

(5) Perform an internal pressure check on the FM-200 extinguishing agent storage unit. The pointer on the pressure gauge should be within the normal range.

5、 The system should undergo a comprehensive inspection twice a year. In addition to the monthly inspection requirements, the following provisions should also be met:

 (1) The condition of openings in the protected area, the usage of the protected area, and the types, quantities, and distribution of combustible materials should conform to the design specifications. Evacuation passages outside the protected area should remain clear.

(2) Conduct a thorough inspection of the fire extinguishing system: ensure that all components are securely connected with no looseness, the extinguishing agent delivery pipes and nozzle orifices are free from blockages, and the system is kept clean.

(3) Remove the pressure signaler for inspection. Manually push the piston (simulating the pressurized discharge of the extinguishing agent). The discharge indicator light should illuminate, the signal should be correctly fed back, and it should be possible to reset manually.

(4) The high-pressure hoses should be free from deformation, cracks, and aging. If necessary, conduct hydrostatic strength tests and leak tests according to design requirements. Only if they pass these tests can they continue to be used.

(5) Ensure that there is no obstruction in the nozzle openings.

(6) Perform a simulated automatic start-up test for each protected area.

(7) Perform a simulation test on the fire alarm control panel for alarm and activation. Fire detection, alarm, extinguishing control, and other signals and actions should function normally. Check the automatic and manual control modes of the actuator (including emergency start and emergency stop), ensuring the device operates correctly.

 

• Remember: The electromagnetic actuator should be removed from the container valve during the simulation test.

6. Every five years, a comprehensive inspection and maintenance of the system, storage device, valve components, and pipes should be conducted, including strength tests, leak tests, functional tests, and replacement of seals, sealing diaphragms, and other consumables.

 

7. Before the system activates and discharges the extinguishing agent, all personnel must evacuate the site within the delay time. After the extinguishing is completed, the ventilation system must be started first. Once the exhaust gases are cleared, the staff can re-enter the site. If the exhaust gases have not been cleared and entry into the protected area is required, personnel must wear dedicated air respirators or oxygen respirators.

 

8. After the fire extinguishing system is activated, all system equipment must be inspected and maintained by a professional maintenance organization or qualified personnel. The system should be restored to its original working position and made to function normally before it can be used again.

 

9. If any issues are found during the inspection or maintenance, and assistance is needed, the user unit can contact our company by phone or in person.

 

10. Unauthorized personnel should not touch or tamper with any components of the fire extinguishing system to avoid accidents.