Unbranded ASAT Calculator Sales and Marketing Introduction Presentation

8/10/2019 Unbranded ASAT Calculator Sales and Marketing Introduction Presentation

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Introduction to the

ASD Suppression ActuationThreshold (ASAT) Calculator

July 2007

13574_03_ASAT Calculator Sales and Marketing Introduction Presentation


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Agenda

1. Background

2. Functions & Use

3. Benefits

4. Package & Support


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Background

Mission Critical Facilities Protection

Protection of mission critical facilities against a fire

event is achieved through:

- Early intervention (initiated by VEW)

- Suppression (initiated by VEW/EW)

Conventional practice for suppression system

actuation:

- Conventional spot-type smoke detectors in a

Coincidence Detection arrangement


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Example of Conventional Coincidence

Detection

Suppression actuation through Coincidence Detectionof cross-

zoned spot-type smoke detectors


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FM Official Listing

ASATCalculatoris officially listed as an approved

design tool in the FM Approval Guide, Chapter 14

(Electrical Signalling)


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Agenda

1. Background

2. Functions & Use

3. Benefits



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Use ofASATCalculator

ASATCalculatoris applicable for ceiling and floorvoid protection in enclosures with continuous or

periodic air circulation with different airflow patterns

and magnitudes

Telecommunication facilities, base-stations

Computer/server rooms

Offices etc.


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Use ofASATCalculator

ASATCalculatorFirethreshold value

predominantly used for Suppression system

actuation with a pre-engineered VESDA

coincidence detection scheme

But it may also be used for:

Evacuation annunciation and procedure

Fire Brigade notification

HVAC system shutdown or conversion to

smoke mode

Automated equipment shutdown


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VESDA Coincidence Detection Schemes

VESDA Detector 1 VESDA Detector 2

Alternating

VESDA pipe

VESDADetector 1

VESDADetector 2

CoincidenceDetectionCylinder

CoincidenceDetection Detector

(CDD)

VESDA exhaust

sampling

VESDA Detector

Hybriddetection

NormalProtection

Group OverReturn Air

Vent

VESDA ceiling

(floor void) / AHU

sampling

Single ASD

detector with

staged alarms


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Design:ASATCalculator

Required Inputs for the Calculator

1. Project name

2. Units (Metricor Imperial)

3. Entire enclosure floor area (m2or ft2)

4. Average ceiling height (mor ft)

5. Floor void height (if applicable) (mor ft)

6. Spot-type smoke detector nominal sensitivity (%/mor %/ft)

7. VESDA sampling hole spacing (m or ft)

8. Enclosure air change rate (air change/hour)

9. Ventilation scheme


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Design:ASATCalculator Inputs & Outputs


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Agenda

1. Background

2. Functions & Use

3. Benefits



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Benefits of Using ASD for both VEWSD and

Suppression Actuation

Detect smoke early enough to allow time to:

Investigate and respond before disruption to businesscontinuity, loss of assets or risks to lifeAvoid costly suppression releaseAvoid the costs of nuisance alarms

Ensure the most timely and reliable actuation of suppression:

High sensitivity overcomes the smoke detectionchallenges presented by smoke dilution (air movementand the scrubbing of filters)

Cumulative sampling ensures reliable detection in highairflow environments

Active sampling of ASD ensures consistent performance

in a range of airflows

Avoid duplication of detection schemes by using ASD for bothveryearly detection of smoke in high airflow environments andthecontrol of suppression releaseAvoid the current practice in Datacom facilities of usingASD for VEWSD in addition to spot-type smokedetectors for suppression actuation


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Benefits of Using theASATCalculator

Proven equivalence to industry-standard spot-typesmoke detector sensitivities (but improved

performance)

Thresholds calculated to specific environmental

parameters

Supported as manufacturers recommendations and

validated by verification procedure as part of

commissioning FM Approved method of calculating fire thresholds

for suppression actuation


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Agenda

1. Background

2. Functions & Use

3. Benefits



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Package

ASATCalculatorsoftware tool(Microsoft Excel)

Part No.: VSW-088

File No.: 13625

Technical Data SheetPart No.: 21188, DOC No.: 13583

ASATCalculatorProduct GuidePart No.:21187,DOC No.: 12748

ASATVerification & Commissioning Procedure DOC No.: 12746

Marketing White PaperWhat A Coincidence! Very Early

Warning Smoke Detection Together With Suppression

Actuation DOC No.: 11843

Design Guide for Telecommunications and Data ProcessingFacilitiesDOC No.: 11782

Detailed technical reports(available on request)


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Availability & Support

Release of the ASATCalculatorto channel

partners and to end users by request (August

2007)

Channel training by requestApplications Engineering Group (AEG) support

on major projects by request

Unbranded ASAT Calculator Sales and Marketing Introduction Presentation

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