TotalPacÂ®2 Dry - FIREFLEX SYSTEMS

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Page 12 of 14TOTALPAC2TOTALPAC2 Integrated Fire Protection SystemMechanical Section - Dry Pipe System3 - High-Pressure Dry Pipe System (HP®)3.1 GeneralThe TOTALPAC2 HP ® Dry Pipe System with the Viking HighPressure (HP ® ) Dry Pipe Trim utilizes a Viking Model EDeluge Valve (A1). The system piping from the Dry PipeValve to the fusible sprinklers is filled with pressurized air ornitrogen. A riser check valve is required to isolate the systemair pressure from the outlet chamber of the deluge valve.An air check system is a small dry system which is directlyconnected to a wet pipe system. The air check system usesa dry valve and an air supply but does not have a separatealarm. The alarm is provided by the main alarm valve.Dry Pipe TOTALPAC2 Systems are commonly used to protectunheated structures or areas where the system is subject tofreezing conditions. High pressure dry systems arecommonly used where sprinkler system supply pressures areabove 175 psi (12 bar), small systems where anti-freezesolutions are undesirable and smaller conventional dry pipevalves are not available.Note: The TOTALPAC2 Trim is provided with a contractor'shydrostatic test water supply port handily located on thepriming trim (see trim schematic for exact location).Simply remove the plug of the Tee connection and connectthe test pump between this port and the system side portlocated on the air trim (refer to AIR SUPPLY SECTION forexact location).3.2 Normal condition.1 Valves.a Main water supply control valve (D1) is OPEN..b All upstream water supply valves are OPEN..c Priming valve (B1) is OPEN..d Flow test valve (B6) is CLOSED..e System main drain valve (D3) is CLOSED..f Alarm test valve (B5) is CLOSED..g Manual emergency release valve (B10) is CLOSED(handle in vertical position)..h Air supply is OPEN (see AIR SUPPLY section)..i All gauge valves are OPEN..2 Gauges.a Water supply (B12) - at water supply pressure.b Priming chamber (B11) - should be equal to, orhigher than, water supply pressure (B12)..c Sprinklers air pressure (E3) – as per Table 1 below..3 Pressure switches.a Alarm switch (C1) - should activate whenpressurized higher than 5 psi..b Low air pressure switch (E2) - – as per Table 1below.TABLE 1MaximumAir Pressure SettingWater Pressure Minimum MaximumPSI kPa PSI kPa PSI kPa50 345 15 103 25 17275 517 20 138 30 207100 690 25 172 35 241150 1034 35 241 45 310175 1207 40 310 50 345200 1380 50 345 55 380250 1725 55 380 60 414REFER TO TRIM SCHEMATIC.FM-086G-0-26C
TOTALPAC2 Page 13 of 14Trim Schematic:TOTALPAC2 Integrated Fire Protection SystemMechanical Section - Dry Pipe SystemHigh-pressure Dry Pipe System (HP®)Trim Components:A. Valve:A1 Deluge valveB. Viking Trim for Deluge Valve:B1 Priming valveB2 StrainerB3 1/16" Restricted orificeB4 Spring loaded check valveB5 Alarm test valveB6 Flow test valveB7 Drip check valveB8 Drain check valveB9 Pressure Operated Relief valve (PORV)B10 Emergency release valveB11 Priming pressure water gauge & valveB12 Water supply pressure gauge & valveB13 Clapper check valveC. Water Flow Alarm Equipment:C1 Alarm pressure switchC2 Connection to water motor gong (strainer suppliedby contractor)D. Valve:D1 Water supply control valveD2 Riser check valveD3 Main drain valveE. Supervisory Air Supply:E4 Air pressure supervisory switchF. Release System:F3 Anti-flood deviceF4 Anti-flood device pressure gaugeF5 Spring Loaded Check ValveFM-086G-0-26C
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TotalPacÂ®2 Dry - FIREFLEX SYSTEMS

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