Page 2of 8TOTALPAC®X
Integrated Fire Protection System
Mechanical Section -Deluge System -Hydraulic Release
FM-076G-0-58A
1.3 Placing the system in service
1. Verify that the main water supply valve (D1) is CLOSED.
Verify that the system has been properly drained.
2. Verify that all system piping auxiliary drain valves are
CLOSED.
3. CLOSE main drain valve (D3). Verify that the manual
emergency release valve (B10) is CLOSED.
4. OPEN priming valve (B1). Verify that the pressure
indicated at the priming pressure gauge (B11) is equal
to, or greater than the pressure indicated at the water
supply pressure gauge (B12).
5. OPEN flow test valve (B6).PARTIALLY OPEN main water
supply valve (D1).
6. When full flow develops from the flow test valve (B6),
CLOSE the flow test valve. Verify there is no flow from
drip check valve (B7) when the plunger is pushed.
7. FULLY OPEN the main water supply valve (D1).
8. Verify that the alarm test valve (B5) is CLOSED and that
all other valves are in their "normal" operating position
(see paragraph 2.1NORMAL CONDITION of the current
section).
9. Check and repair all leaks.
10. On new installation, system that has been placed out of
service, or where new equipment has been installed,
trip test the system to verify that all equipment functions
properly (see paragraph 1.7.1FULL FLOW TRIP TEST of
the current section).
11.Notify the AUTHORITY HAVING JURISDICTION, remote
station alarm monitors, and those in the affected area
that the system is in service.
Note: When a valve has been removed from service and is
subject to freezing or will be out of service for an extended
period of time, all water must be removed from the priming
chamber, trim piping, water supply piping and any other
trapped areas.
1.4 System Operation
1.4.1 In the SET condition
System water supply pressure enters the priming chamber
of the deluge valve (A1) through the priming line which
includes a normally open priming valve (B1), strainer (B2),
restricted orifice (B3) and spring loaded check valve (B4).
Water pressure is trapped in the priming chamber of the
deluge valve (A1) and the hydraulic release piping network
(pilot line) by aspring loaded check valve (B4),PORV (B9)
(pressure operated relief valve) and manual emergency
release valve (B10). The pressure in the priming chamber
holds the deluge valve clapper closed, keeping the outlet
chamber and system piping dry.
1.4.2 In a fire condition
When a releasing device operates,it releases the pressure
from the hydraulic release piping network (pilot line) and
the priming chamber of the deluge valve (A1).
Pressure from the priming chamber of the deluge
valve (A1) is released to the open drain manifold faster
than it is supplied through the restricted orifice (B3). The
deluge valve clapper opens to allow water to flow into the
piping network and alarm devices, causing water flow
alarms connected to the alarm pressure switch (C1) and
the optional water motor alarm (C2) to activate. Water will
flow from all open sprinklers/spray nozzle on the system
piping network.
When the deluge valve (A1) opens, the sensing end of the
PORV (B9) is pressurized, causing it to open. It then
continually vent the priming chamber, preventing the
closure of the deluge valve. The deluge valve can only be
reset after the system is taken out of service.
Note: If a releasing device from the hydraulic release piping
network (pilot line) operates due to mechanical damage or
malfunction, the deluge valve (A1) will open. Alarm
devices (C1 and optional C2) will operate. Water will flow
from the system piping network and flood the protected
area.
1.4.3 Manual operation
Anytime the handle of the manual emergency release
valve (B10) is triggered, pressure is released from the
priming chamber of the deluge valve (A1) causing deluge
valve to open. Water will flow into the system piping
network and alarm devices (C1 and optional C2) will
operate. The PORV (B9) will keep the deluge valve (A1)
open. Water will flow from all open sprinklers/spray nozzle
on the system piping network.
