INDEX

SYSTEM DESCRIPTION
CONSTRUCTION
THEORY OF OPERATION
PREVENTIVE MAINTENANCE
TROUBLE SHOOTING
SAFETY INDUCTION

1. SYSTEM DESCRIPTION

A. SPRINKLER SYSTEM
An Integrated system of piping designed in accordance with fire protection
engineering standards (NFPA - 13). The portion of the Sprinkler system above
ground in a network of specially sized OR hydraulically designed piping installed
in a building, structure, OR area, generally overhead and to which sprinklers are
attached in a systematic pattern. The valve controlling each system riser is located
in the system riser OR in its supply piping. The system is activated by heat from a
fire and discharges water over the fire area.

B. PRO-INERT SYSTEM
A Total Flood ProInert Fire Extinguishing System uses IG-55 as the fire
extinguishant. IG-55 is an inert gas mixture consisting nominally of 50% argon
and 50% nitrogen. t shall include all mechanical and electrical installation, all
detection and control equipment, IG-55 storage cylinders, system actuation
equipment, discharge nozzles, pipe and fittings, manual release and abort stations,
audible and visual alarm devices, auxiliary devices and controls, shutdowns,
alarm interface, caution/ advisory signs all other operations necessary for a
functional ProInert Fire Extinguishing System.

2. CONSTRUCTION

A. SPRINKLER SYSTEM
Sprinkler System consists of the following devices,

i. Pendent Type Sprinkler : Used in Concealed Pipe Area

Make
Model

:
:

ii. Upright Type Sprinkler : Used in Non-Concealed Pipe Area

Make
Model

:
:

iii. Zone Control Valve :

It is installed in each sprinkler zone to control and monitor each
Zone.
It consists of four Devices as below :
a. Butterfly Valve : To open and shut each floor sprinkler system
for
maintenance and repair. If the valve is closed an
indication is given on the Main Fire Alarm Panel
Make
Model

b
.

: SHIELD
: SDBV-G

Flow Switch : To activate fire alarm control on the Main Fire

Alarm
panel in case of a Sprinkler head discharge.
Make

: POTTER

Model

: VSR-F

c. Test and Drain Valve : To check the working of the Flow Switch
and also to drain the sprinkler system for Maintenance and
Repair.
Make
Model

d
.

: SHIELD
: SD-A25

Pressure Gauge : To check the water pressure at each sprinkler

zone.
Make
Model

:
:

iv. Alarm Check Valve : To gives mechanical alarm in case even

one of the Sprinkler head is operated.
Make
Model

: SHIELD
: SD-DVA

B. PRO-INERT SYSTEM
Pro-inert System consists of the following devices:

i. Agent Storage Cylinder Assembly : Cylinder to store the IG-55

Fire Extinguishant along with pressure gauge, pneumatic actuator
assembly and discharge hose.
Make
Model

: FIKE
: IG71-090

ii. Master Actuator Assembly : Its consists of a electrically activated

solenoid valve connected to a rechargeable nitrogen cylinder.
Make
Model

: FIKE
: 70-202

iii. Discharge Nozzle : It controls the flow and distribution of the

agent into the protected room.
Make
Model

: FIKE
:

iv. Selector Valve Assembly : It allows a single agent supply to be

utilized for protection of multiple hazards.
Make
Model

v
.

: FIKE
:

Discharge Pressure Switch Assembly : It is used to provide a

latching electrical input to the control system.
Make
Model

: FIKE
: IG71-202

vi. Extinguishing Panel : Its an addressable fire suppression control

system
Make
Model

: FIKE
:

vii. Photoelectric Smoke Sensor : Its an addressable smoke detector

with on activation gives fire signal on the Extinguishing Panel.
Make
Model

: FIKE
:

viii. Manual Pull Station : It is a dual actuation device which provides

a means of manually discharging the automatic fire extinguishing
system when used in conjunction with the Extinguishing Panel.
Make
Model

: FIKE
:

ix. Abort Switch : It provides a temporary manual means by which

the system actuation circuit may be interrupted, when operated
prior to the agent release.
Make
Model

x
.

: FIKE
:

Bell : It is activated on receiving of the fire signal on the

Extinguishing Panel.
Make
Model

: FIKE
:

xi. Horn : It is activated on receiving of the Pre-dischareg signal on

the Extinguishing Panel.
Make
Model

: FIKE
:

xii. Flash : It is activated on receiving of the Gas Discharge signal on

the Extinguishing Panel.
Make
Model

: FIKE
:

3. THEORY OF OPERATION

A. SPRINKLER SYSTEM
When a fire occurs in any floor, heat rising from the fire breaks the glass built in
the sprinkler head, releasing water into the fire. As a result of which there is a
drop in the system water pressure and the fire pump starts feeding water to the
system. At this stage the Alarm Check Valve and/or Flow Switch gets operated
indicating a water flow in that particular floor / section which is relayed to the
Main Fire Alarm Panel and the Fire Alarm gets activated.

ALARM CHECK VALVE

B. PRO-INERT SYSTEM

Total Flooding Clean Agent Extinguishing System is manufactured by Fike

Protection System U. S. A.

The System includes Mechanical and Electrical Installation, Detection and

Control Equipment, Agent Storage Cylinders, Clean Agent as IG-55.

Nozzles, Pipes and Fittings, Manual Release and Abort Stations, Audible and
Visual Alarm Devices, Auxiliary Devices and Control, Shut Down, Alarm
Interface, Caution/Advisory Signs and Functional Checkout testing.

The system shall be actuated by a Optical Smoke Installed in the protected .

The automatic operation of each protected area shall be as follows:

a.

Actuation of one (1) detector, within the system, shall:

Illuminate a ALARM lamp on the control panel.
Energize an alarm bell inside the hazard area (1st Stage Alarm)

b.

Actuation of a second detector, within the system, shall:

Illuminate a PRE-DISCHARGE lamp on the Control Panel
Energize an alarm Horn/Device (2nd Stage Alarm)
Start time-delay sequence (set for 30 seconds)
Enable system abort sequence.
Shut down the HVAC system or close dampers wherever
applicable.

c.

After completion of the time-delay sequence the agent shall be

discharges and following shall occurred.
Illuminate a RELEASE lamp on the control panel.
Energize visual indicator outside the hazard in which the discharge
occurred along with alarm horn/device.

d.

The system shall be capable of being actuated by manual discharge devices

located at exit of each hazard. Operation of a manual device shall duplicate
the Cross Zone Detection sequence described above except the time delay
and abort functions shall have the provisions for monitoring initiating devices
circuits, alarm circuits for open or different audio visual signal. Panel shall

have battery charger (inbuilt) to keep the standby battery in charged

condition.

4. PREVENTIVE MAINTENANCE

A. SPRINKLER SYSTEM
Sr.
No.

EQUIPMENT

FREQUENCY

Gauge

Quarterly

Visual inspection to be carried out to

identify if any damages on the gauge

Control Valve

Quarterly

Visual inspection to be carried out to

identify if any damages on the gauge

TASK DESCRIPTION

Alarm device

Control Valve

Quarterly

Visual inspection to be carried out to

identify if any damages on the gauge

Annually

Close the Butterfly valve and check

whether the fault signal is received in the
control panel

Alarm device

Annually

Open the Test Valves and check whether

the signal from Flow Switch / Alarm
check reaches the Fire Alarm Panel

Hangers

Annually

Visual Inspection on the installation and

damages if any starting from the floor
level to the top.

Pipe and
Fittings

Annually

Visual Inspection on the installation and

damages if any starting from the floor
level to the top.
Visual Inspection on the installation and
damages if any starting from the floor
level to the top.

Sprinklers

Annually

Check Sprinklers so that they are free of

any signs of leakage, corrosion, foreign
materials, paint and physical damage and
installed in the proper orientation (eg)
Upright or Pendant.
Re-fix or repair any sprinklers having
signs of leakage , corroded ,damaged or
in the improper orientation
Correct the unacceptable obstructions to
spray patterns.

B. PRO-INERT SYSTEM

Sr.
No.

EQUIPMENT

Cylinders

FREQUENCY

TASK DESCRIPTION

Monthly

Check the cylinder pressure gauge for

required pressure. If reading shows more
than a 10% loss in pressure from
required name plate, replace or refill the
cylinder.

Actuator
Cylinders

Monthly

Check the cylinder pressure gauge for

required pressure. If reading shows more
than a 10% loss in pressure from
required name plate, replace or refill the
cylinder.

Pipe and
Fittings

Monthly

Visual Inspection on the installation and

damages if any.

Pipe Support

Monthly

Visual Inspection on the installation and

damages if any.

Initiating
Device

Monthly

Visual Inspection on the installation and

damages if any.

Monthly

A thorough maintenance check is

required on the circuits of the signalling
device to identify if the connection is
proper or not. If any damages to be
replaced.

Monthly

A thorough maintenance check is

required on the circuits of the signalling
device to identify if the connection is
proper or not. If any damages to be
replaced
A thorough maintenance check is
required on the circuits of the signalling
device to identify if the connection is
proper or not. If any damages to be
replaced

Extinguishing
Panel

Smoke
Detectors

Input Devices
signal

Monthly

Output Devices
Signal

Monthly

A thorough maintenance check is

required on the circuits of the signalling
device to identify if the connection is
proper or not. If any damages to be

replaced

External Relay
Signals

10

Monthly

A thorough maintenance check is

required on the circuits of the signalling
device to identify if the connection is
proper or not. If any damages to be
replaced

5. TROUBLE SHOOTING

A. SPRINKLER SYSTEM

Sr.
No.

Component/Checkpoint

Corrective Action

Sprinkler Damage

Replace

Leak

Repair

Hanger support Damage

Replace

Alarm Check Valve Not Operating

Replace or Repair

Alarm Check Valve No Signal

Check Fire Alarm Wiring

Butterfly valve Not Operating

Replace or Repair

Butterfly valve No Signal

Check Fire Alarm Wiring

Flow Switch Not Operating

Replace or Repair

Flow Switch No Signal

Check Fire Alarm Wiring

10

Test and Drain Valve - Not Operating

Replace

11

Pressure Gauge Not Operating

Replace or Repair

B. PRO-INERT SYSTEM

Sr.
No.

Component/Checkpoint

Corrective Action

Cylinder Pressure loss

Refill

Cylinder - Damage

Replace

Actuator Cylinder Pressure loss

Refill

Actuator Cylinder - Damage

Replace

Nozzle - Damage

Replace

Gas Extinguishing Panel Not

operating

Replace or Repair

Smoke Detectors Not operating

Replace or Repair

Smoke Detectors No signal

Check Wiring

Audible and Visual Devices Not

operating

Replace or Repair

10

Audible and Visual Devices No signal

Check Wiring

11

Control Device Not operating

Replace or Repair

12

Control Device No signal

Check Wiring

6. SAFETY INDUCTION

Use Safe Ladder while doing the maintenance.

Close the Butterfly valve / Isolation Valve and release the Zone/Floor pressure before
replacing any component
Use of ladder should not damage the installed sprinklers and other system devices.
Use proper means to remove the residual water in the system while components
replacement so as to avoid any water damages.
Disconnect the Main Power Supply and Secondary Power Supply to Replace or
Repair damaged devices.