Page 2of 6TOTALPAC®X FIRECYCLE®III
Integrated Fire Protection System
Mechanical Section - Wet Pipe System - FIRECYCLE®III Release
FM-076G-0-55A
1.3 Placing the system in service
1. Verify that the main water supply valve (D1) is CLOSED.
2. Verify that all system piping has been properly tested.
Note: For proper operation of the wet pipe system and to
minimize unwanted (false) alarms, it is important to
remove trapped air from the system when filling it with
water. Consider installation of auxiliary vents to facilitate
bleeding.
3. Verify that the manual emergency release valve (B10) is
OPEN.
4. If applicable, reset the release control panel (supplied
by others). Solenoid valve (F1) should CLOSE.
5. SLOWLY OPEN main water supply valve (D1) until fully
open.
Note: By opening the inspector's test valve and slowly fill
the system piping network, it can reduce the apparition of
false alarms during normal supervisory condition.
6. CLOSE the manual emergency release valve (B10).
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).
7. Verify that valves are in their "normal" operating position
(see paragraph 2.1NORMAL CONDITION of the current
section).
8. Check and repair all leaks.
9. 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).
10.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 flow control valve (A1) through the priming line which
includes strainer (B2), restricted orifice (B3) and spring
loaded check valve (B4).
Water pressure is trapped in the priming chamber of the
flow control valve (A1) by a spring loaded check
valve (B4), normally closed solenoid valve (F1), normally
open solenoid valve (F2) and manual emergency release
valve (B10). The pressure in the priming chamber holds
the flow control valve clapper closed.
The entire system piping network is filled with water.
1.4.2 In a fire condition
When aFIRECYCLE®detector is activated, the remote
release control panel energizes both the normally closed
solenoid valve (F1)and normally open solenoid valve (F2).
Pressure from the priming chamber of the flow control
valve (A1) is released faster than it is supplied through the
restricted orifice (B3). The flow control valve clapper
opens. When an automatic sprinkler fuses, water will flow
from the system piping network, causing the water flow
switch (C3) to activate.
Note: If the detection system operates due to mechanical
damage or malfunction, the flow control valve (A1) will
open. When an automatic sprinkler fuses, water will flow
from the system piping network, causing water flow water
flow switch (C3) to activate.
Note: If the system piping network or an automatic sprinkler
is damage, the water flow condition will activate the water
flow switch (C3). The release control panel will energize
the normally open solenoid valve (F2). The flow control
valve (A1) will close after a short delay.
1.4.3Cycling discharge stop
Water discharges until all FIRECYCLE®detectors have reset
(cooled below their set point). The release control panel
then activates a soak timer, allowing the system to flow
water for a preset period of time (soak timer).
When the soak timer has elapsed, the remote release
control panel de-energizes the normally closed solenoid
valve (F1), allowing it to close. The normally open
solenoid (F2) remains energized closed. It rebuilds
pressure in the priming chamber of the flow control
valve (A1), allowing it to close and stop discharge.
Should a FIRECYCLE®detector go into alarm, the remote
release control panel energizes once again the normally
closed solenoid valve (F1), and the entire discharge cycle
repeats.
