BERMAD 400E-Y, Инструкция по установке, эксплуатации и обслуживанию

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11
400E-Y Pre-Action
Removal Instructions
WARNING:
When taking the Pre action System and its sprinkler network out of service, a roving fire patrol should
survey the system area. If automatic fire alarm signaling equipment is utilized, the proper authority should be
notified that the system is being removed from service. The insuring body and owner’s representative should also
be notified when the system is being taken out of service.
A.
Shut off the main supply-isolating valve.
B.
Close the pneumatic pressure supply to the system.
C.
Close the priming line valve to the Bermad valve control chamber.
D.
Open all drain valves to drain all the water from the system .
E.
Release the water pressure from the control chamber of the water control valve by pulling the manual
emergency release.
F.
If auxiliary power is used, disconnect all power supply and batteries.
G.
Place "Fire Protection System Out of Service" signs in the area protected by the system.
5.1 Inspection
5.1.1 Weekly Inspection
A. The system should be checked for Set Condition. See above “Set Condition (Normal condition)”.
B. Observe the upstream pressure gauge: it should indicate that the normal supply of water pressure to the
Water Control Valve is maintained.
5.1.2 Monthly Inspection and Test
A. Complete Weekly Inspection.
WARNING
: Manually activating the alarm affects the Control Panel, which in turn can cause a general alarm. Take
all of the necessary precautions in order to prevent causing a general false alarm.
B. Test the Electric Alarm Bell and the Water-Flow Alarm (if installed) by turning the Alarm-Test Valve (1A) to
the open position. The alarm should sound.
C. Depress the Drip Check (19B) to release any accumulation of water. The dripping should stop completely.
5.1.3 Annual Inspection and Test
A. Complete Weekly, Monthly and Semi-Annual inspections.
B. Close the Sprinkler-System Isolating Valve, to isolate the sprinkler system.
C. The Water Control Valve trim, releasing devices such as Solenoid valve, URV-M device and manual
release must be activated at full flow.
D. Trip test the Pre action System with the electric and pneumatic system activation. Operate Control Panel
by operating the Heat Detectors; also release air pressure to operate the URV-M. The Control Panel shall
be tripped according to the method suggested by the Panel manufacturer. Observe upstream Pressure
Gauge while full flow is on.
NOTE
: Water will be discharged to the drain. In cases where a Sprinkler- Piping Isolating Valve is not
installed, another arrangement must be made in order to perform the trip test without causing water
damage.
E. Place the system out of service. (See Removal instructions above).
F. Clean the priming strainer prior to resetting the Water Control Valve.
G. Place the system back in service (See instructions in the section "Placing the System in Service").
H. Take all additional measures as required by NFPA-25 "Standard for the Inspection Testing and
Maintenance of Water-Based Fire Protection Systems”.
5.2 Abnormal Conditions
5.2.1 Alarm Pressure Switch Fails to Sound
A. Check for obstructions in the alarm test line.
B. Clean the alarm-line strainer (if a water motor alarm is installed).
C. Make certain the alarm is free to operate.
D. Test the electrical circuit to the electric alarm (if utilized)
5.2.2 False Trip, Check for any of The Following Possible Causes:
A. Check and test the electrical circuit to the Solenoid Valve
B. Check for Malfunctioning resetting pilot valve/device.