APPLICATIONS GUIDE Aspirating Smoke Detection APPLICATIONS GUIDE: ASPIRATING SMOKE DETECTION Aspirating Smoke Detection Contents Aspirating Smoke Detection ...............................................................................3 Design Best Practices .......................................................................................21 Codes and Standards .......................................................................................4 More on Hot Aisle/ Cold Aisle Configurations .................................................22 Definitions ............................................................................................................4 Coordination and Interface with other Systems ..............................................26 United States Definitions and Requirements .....................................................4 Common Issues / Application Troubleshooting .............................................26 Requirements of SFD systems according to NFPA 72 .....................................4 Telecommunications .......................................................................................28 Requirements of EWFD systems according to NFPA 76 .................................4 Application Overview.........................................................................................28 Requirements of VEWFD systems according to NFPA 76 ...............................5 Benefits of Aspirating Smoke Detection ..........................................................29 European EN 54-20 Requirements ....................................................................5 Design Best Practices .......................................................................................30 Principles of Aspirating Smoke Detection (Airflow Dynamics) .................7 Common Issues / Application Troubleshooting .............................................36 Sampling Pipe Network .......................................................................................7 Duct and Return Air Monitoring ....................................................................38 Aspirating Smoke Detector .................................................................................8 Application .........................................................................................................38 ASD Exhaust Principles .......................................................................................9 Benefits of ASD ..................................................................................................38 ASD Sampling Methods ......................................................................................9 Best Design Practices ......................................................................................38 Considerations for ASD Systems Based on Their Operating Principles .........9 Common Issues .................................................................................................41 Transport Time .....................................................................................................9 Clean Rooms ....................................................................................................42 Benefits for ASD Systems Based on Their Operating Principles ..................10 Application Overview.........................................................................................42 Aspirating Smoke Detection Benefits for Benefits of Aspirating Smoke Detection ..........................................................44 Diverse Applications ..........................................................................................11 Design Best Practices .......................................................................................45 Installation, Commissioning and Maintenance ..........................................12 Common Issues / Application Troubleshooting .............................................48 Installation ...........................................................................................................12 Large Volume Spaces .....................................................................................50 Fittings.................................................................................................................12 Application Overview.........................................................................................50 Capillaries and Sampling Holes .......................................................................12 Benefits of Aspirating Smoke Detection ..........................................................51 Installation Materials and Pipe Hangers ..........................................................13 Design Best Practices .......................................................................................51 Installing Sampling Pipe Network .....................................................................14 Ceiling Temp. 80° F, 90s Timeframe ................................................................51 Commissioning ..................................................................................................15 Ceiling Temp. 108° F, 90s Timeframe ..............................................................51 Testing and Maintenance ..................................................................................16 Common Issues / Application Troubleshooting .............................................58 Troubleshooting Guide ...................................................................................18 References .........................................................................................................59 Data Centers / Electronic Equipment Installations ..............................................................20 Application Overview.........................................................................................20 Benefits of Aspirating Smoke Detection ..........................................................20 2 SYSTEM SENSOR Prisons and Restricted Areas ........................................................................60 Benefits of Aspirating Smoke Detection ..........................................................70 Application Overview.........................................................................................60 Best Design Practices .......................................................................................70 Benefits of Aspirating Smoke Detection ..........................................................60 Common Issues / Application Troubleshooting .............................................74 Design Best Practices ......................................................................................61 Do’s .....................................................................................................................74 Common Issues / Application Troubleshooting ...............................................62 Don’ts .................................................................................................................74 Do’s .....................................................................................................................63 References .........................................................................................................74 Don’ts ..................................................................................................................63 Transportation Facilities .................................................................................75 References .........................................................................................................63 Application Overview.........................................................................................75 Extreme Temperatures ....................................................................................64 Benefits of Aspirating Smoke Detection ..........................................................76 Application .........................................................................................................64 Design Best Practices .......................................................................................76 Cold Storage Facilities .....................................................................................64 Common Issues / Application Troubleshooting .............................................78 Best Design Practices for Cold Storage ..........................................................65 Do’s and Don’ts ..................................................................................................79 Common Issues for Cold Storage ....................................................................68 References .........................................................................................................79 Hot Aisle Containment Area ..............................................................................68 Historic and Cultural Buildings .....................................................................80 Do’s .....................................................................................................................69 Application Overview.........................................................................................80 Don’ts .................................................................................................................69 Benefits of Aspirating Smoke Detection ..........................................................81 Dirty