7
400E-DP-Y
Ensure that the following Set Conditions are met.
Table No.2: Set Conditions (Normal Conditions) Table
Item Status
All Main Isolating Valves
OPEN
and sealed with tamperproof seals
All Manual Releases
CLOSE
position and sealed
Alarm Shut-Off Valve (11A)
OPEN
position
Priming Ball Valve (18B)
OPEN
Control-Chamber Gauge
OPEN
gauge valve, the gauge indicates control-chamber pressure
Upstream Pressure Gauge
OPEN
gauge valve, the gauge indicates the supply pressure
Drip-Check Device (19B)
VENTED
: Push the knob to confirm that there is no seat leakage
Alarm Panel (if installed)
In service and are stand-by
Supervised Air System
The pressure gauge shows 2.5 ± 0.1 barg (36.5 ±1.5 psi) and stable
Releasing Devices
CLOSED
with no leaking
5.
Maintenance
Bermad Dry Pipe Valve requires no lubrication, packing or tightening and requires minimum maintenance.
WARNING:
Do not turn off the water supply to make repairs without placing a roving fire patrol in the area covered by the
system. The patrol should continue until the system is back in service.
A.
Prior to turning off any valves or activating any alarms, notify local security guards and the central alarm station, if used, so
that a false alarm will not be raised.
B.
In any of the following inspections or testing procedures, if an abnormal condition exists, see "Abnormal Conditions" for
possible cause and corrective action.
C.
See NFPA Pamphlet No. 25 and also relevant publications by authorities having jurisdiction.
5.1
Removal Instructions
WARNING:
When taking the Dry-Pipe Valve 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.
Close the pneumatic pressure supply to the system.
Close the priming line valve to the Bermad valve control chamber.
Open all drain valves to drain all the water from the system .
Release the water pressure from the control chamber of the water control valve by pulling the manual emergency release.
Place "Fire Protection System Out of Service" signs in the area protected by the system.
5.2
Inspection
5.2.1
Weekly Inspection
B.
The system should be checked for Set Condition. See above “Set Condition (Normal condition)”.
C.
Observe the upstream pressure gauge: it should indicate that the normal supply of water pressure to the Deluge Valve
is maintained
.
5.2.2
Monthly Inspection and Test
D.
Complete Weekly Inspection.
WARNING
: Manually activating the alarm may affect the Detection System 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.
E.
Water-Flow Alarm: By turning the Alarm-Test Valve (1A) to the open position. The alarm should sound.
F.
Open the downstream drain valve to release any accumulation of water. The dripping should stop completely
.
