OPERATING INSTRUCTIO NS

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 SPRINKLER SYSTEM

OPERATING INSTRUCTIONS

The system provided is an automatic detection and actuation system. In case of

fire, the rapid rise in temperature will cause the liquid inside the frangible glass

bulb (Quick response 68 deg Quartzite bulb) to expand. Since the co-efficient of

expansion of the liquid is very high, it will cause the glass bulb to shatter and the

Water under pressure will escape through the orifice.

As a result of the above, the pressure in the pipe network will fall. Water will flow

through the pipe network and will be sprayed to the protected area. The exact

location of fire can be identified from the Sprinkler Annunciation Panel (not part of

our scope), through the signal received from the flow switch provided in the

sprinkler network.

Due to the pressure drop in the sprinkler network, the pumps shall start

automatically as described earlier. After extinguishing the fire, switch off the

pumps which are running. Replace all the sprinklers, which had burst during

detection. Start the jockey pump manually. After attaining the system pressure of

7.0 kg/cm2, stop the pump and keep all the pumps in “Auto” mode. Ensure the

Flow switch signal is reset at the annunciation panel.

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 IN CASE OF FIRE

SPRINKLER SYSTEM:

1.1. It shall be ensured that the system is pressurized always.

1.2. Once in a week the test drain in the pump house should be opened to

stimulate the system.

1.3 Once in a month, drain valve for the individual floors/cores should be opened

to stimulate the system operation and ensure that the flow switches and sprinkler

alarm valve are activating properly.

Disconnection during Testing and Maintenance:

During testing or maintenance as much of installation as possible shall be

kept in the normal operation condition. If sprinklers are removed from the

installation for testing & repairs, replacement of sprinkler should be provided

immediately or separate provision should be made for surveillance of the

unprotected area. Disconnection or failure of an installation or part of installation,

which are likely to leave the areas unprotected for 12 hours or more, shall be

intimated to the statutory body immediately.

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 ADDRESSABLE FIRE DETECTION AND ALARM SYSTEM

OPERATING INSTRUCTIONS

The Fire alarm system is used for protection of life by automatically indicating the

necessity for evacuation of the building or fire area and for protection of property

through the automatic notification to responsible persons for actuation of fire safety

functions. The system primarily intended to provide notification of fire alarm,

supervisory and trouble conditions to alert the occupants and to control the fire

safety functions. The main equipment of this system is the FACP, Fire Alarm

Control Panel, consisting of CPU, network card, addressable controller card,

initiating device, circuit module etc. The use of intelligent and addressable initiating

devices and modules provide with precise information on the location of the alarm

or trouble, as well as what type of device is reporting the activity. The FACP has a

alphanumeric LCD display, diagnostic LED’S and control switches, event scroll

switches for review etc. The FACP is connected to a number of Loops and each of

which is capable of supporting over a hundred addressable initiating devices.

Sitting of the notification devices is on the Loop and powered separately.

A fire alarm is initiated by activation of the following devices.

a) Intelligent Multisensor detector.

b) Manual fire alarm pull point located though out the protected area.

c) A pressure supervisory signal-initiating device from a sprinkler system

activated with the drop in pressure. The operator on duty will acknowledge the

audiovisual fire / trouble / supervisory alarm signal. The alphanumeric display will

give the exact location of the initiating device or the supervisory signal origination.

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Upon receipt of an alarm signal the supervisory operator shall initiate action to

perform the following:

1) Immediately notify the fire department.

2) Promptly dispatch a runner to the alarm location.

3) Restore the system as soon as possible after disposition of the cause of the

alarm signal.

4) Notify the maintenance personal if it is a false alarm.

Upon the receipt of a sprinkler system and over supervisory signal, the

supervising operator shall initiate action to perform the following..

a) Communicate immediately with the designated person to ascertain the reason

for the signal.

b) Dispatch a runner or maintenance personnel to investigate.

c) Notify the fire department.

d) Notify the authority having jurisdiction of sprinklers.

Upon receipt of a trouble signal or over signal pertaining safety to matters of

equipment maintenance of the fire alarm system, the supervising operator shall

initiate action to perform the following:

i) Notify the authority having jurisdiction when interruption of service.

ii) Communicate immediately with the designated persons to ascertain the reason

for the signal.

iii) Dispatch a runner or maintenance personnel to investigation.

The supervisory operator upon receiving an Alarm signal shall ascertain if a

general evacuation for the building is required or not.

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 PUBLIC ADDRESS SYSTEM

OPERATING INSTRUCTIONS

The Public Addressing System is used to play Music or to make announcements

through the speakers, which are spread over the entire building. The speakers are

grouped in zones. The speakers are designed to serve multi purpose. The music can

be played in NORMAL conditions. The ALERT tone or the announcement can be sent

through the same speakers under FIRE conditions. Each one of this is designed with

different levels of priorities.

The priority is as follows

1. Emergency or General announcement.

2. Fire Tone

3. Music

THE SYSTEM:

The Public addressing system comprises of

1. Public Addressing Amplifiers

2. Ceiling ring speakers

SYSTEM DESCRIPTION:

The speakers are getting different signals through the different sources by switching

circuits. The speakers in the building are divided into zones. The zones are switched

on through the control console.

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CABLE ARRANGEMENTS:

From each zone one pair of cable (Two-core-cable) shall run to the Main Distribution

Box. Switching circuit is provided through which the signal can be transmitted. From

the amplifier two-core cable has to be laid to the main distribution box. Twenty core

cable carrying the zone signal to be laid between the console and the main

distribution box. One microphone shield cable to be laid between the music source

and the main distribution box, microphone shielded cable laid between the console

and the main distribution box.

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