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400E-DP-Y
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The information herein is subject to change without notice. BERMAD shall not be held liable for
any errors. All rights reserved. © Copyright by BERMAD
.
PCSP4E-T-DP_26.02.12
5.2.3
Annual Inspection and Test
A.
Complete Weekly and Monthly and inspections.
B.
Close the Sprinkler-System Isolating Valve, to isolate the sprinkler system.
C.
The Water Control Valve trim, releasing devices such as manual release must be activated at full flow.
D.
Trip test the Dry Pipe Valve with the Control Panel. Operate the detecting system by operating both the Heat
Detectors and the Low-Pressure Switch (P2). The release should be tripped according to the method suggested by the
manufacturer of the Control Panel.
E.
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, other
arrangement must be made in order to perform the trip test without causing water damage.
F.
Place the system out of service. (See “Removal instructions”).
G.
The interior of the Deluge Valve should be cleaned and inspected.
H.
The interior of the URV-M, including its diaphragm and seal, should be inspected and cleaned.
I.
Place the system back in service. (See instructions "Placing the System in Service").
J.
Take all additional measures as required by NFPA-25 "Standard for the Inspection Testing and Maintenance of
Water-Based Fire Protection Systems."
K.
Clean the priming strainer prior to resetting the valve.
5.3
Abnormal Conditions
5.3.1
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
).
5.3.2
False Trip
Check for any of the following possible causes:
A.
Check for Malfunctioning Manual Emergency Release device.
B.
Check and test the URV-M activation.
5.3.3
Leakage through Water Control Valve
Check for any of the following possible causes:
C.
Check for clogged priming strainer.
D.
Leaking control trim system.
E.
Damaged main valve internal elastomer or seat
.
5.3.4
Water Control Valve Will Not Reset
Check for any of the following possible causes:
F.
The Manual Emergency Release device is clogged or not reset properly.
G.
Check for clogged priming strainer, the screen should be properly cleaned.
H.
Closed priming valve.
I.
Check for Foreign object lodged between seal and valve seat.
5.3.5
Difficulty in Performance
Where difficulty in performance is experienced, the manufacturer or his authorized representative should be
contacted if any field adjustment is to be made.
