Potter Releasing Systems - Manual (Page 2)

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Contents
Foreword ................................................................................................................................................................................3
Introduction ............................................................................................................................................................................4
Glossary/Definitions ..............................................................................................................................................................5
Symbols ...............................................................................................................................................................................10
Codes and Standards ............................................................................................................................................................13
Fire Alarm Signals ...............................................................................................................................................................15
Types Of Sprinkler Systems .................................................................................................................................................15
Wet Pipe Sprinkler Systems .................................................................................................................................................16
Straight Pipe Riser .................................................................................................................................................17
Wet System With An Alarm Check Valve .............................................................................................................18
Wet System With Maintained Excess Pressure .....................................................................................................22
Straight Riser With Maintained Excess Pressure ..................................................................................................22
Wet System With Alarm Check Valve And Maintained Excess Pressure .............................................................24
Dry Pipe Systems .................................................................................................................................................................26
Typical Wet System Waterflow Switch Selection Guide Fig. 8 ...........................................................................................28
Dry Pipe System Waterflow And Air Supervisory Switch Selection Guide Fig. 9 ..............................................................29
Valve Supervision (Tamper Switch) Selection Guide Fig. 10 .............................................................................................30
Installation Of Waterflow Switches .....................................................................................................................................31
Installation Of Valve Supervisory Switches.........................................................................................................................34
Other Types Of Supervision .................................................................................................................................................35
Test Procedures ....................................................................................................................................................................36
Smoke/Heat Detector Replacement .....................................................................................................................................51
Ceilings ...............................................................................................................................................................................51
Release Systems General Information and Terminology .....................................................................................................53
Pre-Action Systems ..............................................................................................................................................................54
Deluge Systems ....................................................................................................................................................................58
System Installation ...............................................................................................................................................................60
Battery Calculations .............................................................................................................................................................60
Data Sheets ...........................................................................................................................................................................64