he Leading Manufacturer of Air Compressors Designed for All Types of Dry Pipe Sprinkler Systems Quality & ...
he Leading Manufacturer of Air Compressors Designed for All Types of Dry Pipe Sprinkler Systems Proud Mem...
Dry Air Pac For Critical Applications•Basics of Compressed Air•Ice Plugs•Primary Components•A Closer Look At TheIntegrate...
Dry Air Pac For Critical Applications Basics ofCompressed Air
Basics of Compressed Air Air CompressorsCompressed Air: Atmospheric air compressed by a mechanical device to increaseits ...
Basics of Compressed Air Compression RatioIt takes 7.8 Ft3 of atmosph...
Basics of Compressed AirCompression Ratio
Dry Air Pac For Critical Applications Ice Plugs
The Problem - Ice Plugs• Ice Plug formation causespartial and eventually completeblockage of the dry-pipe system.•Factory ...
The Cause - Ice Plugs• Evaporating Priming Water• Water left in the lines afterannual trip test.• The Major Culprit, moist...
The Solution …Dry Air Pac For Critical Applications • Freezer Rooms • Cold Storage • Parking Garages • Potential MIC...
Dry Air Pac For Critical Applications Primary Components
FM Approvaleliminates requirementto connect air intake tofreezer room.
Industrial Duty Compressor Pump
Removable Intake Filterwith Weatherhood
Compact Air Cooled Aftercooler
Pressure Switch
Check Valve
ASME / NB Tank (30 Gallons)
Integrated Electronic Drain
Vibration Isolation Pads
Prefilter with Differential Pressure Gauge
SAEJ10 Towers
Purge Pressure Gauge
Oversized Mufflers for quietdischarges and lowbackpressure
UL Listed / FM Approved Air Maintenance Device
Combination Afterfilter & Regulator
Dry Air Outlet
Dewpoint Test Port
Dry Air Pac Test Kitgives visual indication if moisture is present(Available as option).
Fully Integrated Control Panel ensures package performs tospecification.
A Closer Look at the Fully Integrated Control Panel
Fully Integrated Control Panel –Performance Lights
Fully Integrated Control Panel –•Reset Button•Control Panel Power•Incorporated AutomaticDrain Controls
Fully Integrated Control Panel –Hour Meter
Fully Integrated Control Panel –Receiver Pressure Gauge
Fully Integrated Control Panel –Left Tower Pressure Gauge
Fully Integrated Control Panel –Right Tower Pressure Gauge
Fully Integrated Control Panel –Outlet Pressure Gauge
Inside the Control Panel
Inside the Control Panel –Magnetic Line Starter(NEMA Rated)
Inside the Control Panel –Control Circuit Transformer(with primary and secondary fusing)
Inside the Control Panel –Cam Timer
Inside the Control Panel –Solenoid Valves
Dry Air Pac For Critical ApplicationsTroubleshooting
Troubleshooting the Dry Air PacProblem Probable Cause SolutionPoor Dewpoint Low pressure on ...
Troubleshooting the Dry Air PacProblem Probable Cause SolutionExcessive Switching valve C...
Troubleshooting the Dry Air PacProblem Probable Cause SolutionSwitchover Electric power loss ...
Troubleshooting the Dry Air PacProblem Probable Cause SolutionRepressurization Purge flow control...
he Leading Manufacturer of Air Compressors Designed for All Types of Dry Pipe Sprinkler Systems Call Toll Free ...
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Prevent Ice Plugs with the FM Approved Dry Air Pac for Freezer Room Fire Protection

The Dry Air Pac from General Air Products is an FM Approved air compressor, desiccant dryer package designed to eliminate ice plugs in freezer room fire protection sprinkler systems. The Dry Air Pac can also be used to slow the effects of corrosion in dry pipe sprinkler systems and is used frequently in critical applications where a moisture free environment is a must.
Published on: Mar 4, 2016
Published in: Business      Technology      
Source: www.slideshare.net


Transcripts - Prevent Ice Plugs with the FM Approved Dry Air Pac for Freezer Room Fire Protection

  • 1. he Leading Manufacturer of Air Compressors Designed for All Types of Dry Pipe Sprinkler Systems Quality & Service Since 1936
  • 2. he Leading Manufacturer of Air Compressors Designed for All Types of Dry Pipe Sprinkler Systems Proud Member of
  • 3. Dry Air Pac For Critical Applications•Basics of Compressed Air•Ice Plugs•Primary Components•A Closer Look At TheIntegrated Control Panel•Inside the Control Panel•Troubleshooting
  • 4. Dry Air Pac For Critical Applications Basics ofCompressed Air
  • 5. Basics of Compressed Air Air CompressorsCompressed Air: Atmospheric air compressed by a mechanical device to increaseits pressure.• Compressed air is an energy source – often considered the 4th utility. MoistureDewpoint: Temperature at which moisture will occur.• Example: 75ºF, 75 RH, 25 CFM = 4.5 gallons of water per day Air Dryers• Refrigerated, 30ºF – 39ºF dewpoint• Chemical, down to -100ºF dewpoint
  • 6. Basics of Compressed Air Compression RatioIt takes 7.8 Ft3 of atmospheric air (14.69 PSIA) to make one actual cubic foot of air at 100 psig. (psia / atmosphere)
  • 7. Basics of Compressed AirCompression Ratio
  • 8. Dry Air Pac For Critical Applications Ice Plugs
  • 9. The Problem - Ice Plugs• Ice Plug formation causespartial and eventually completeblockage of the dry-pipe system.•Factory Mutual, after severalyears of study, found that 50% to70% of the dry pipe systemsinspected were plagued with IcePlug problems.
  • 10. The Cause - Ice Plugs• Evaporating Priming Water• Water left in the lines afterannual trip test.• The Major Culprit, moistureladen compressed air meetingfreezing temperatures in theDry Pipe System. (Contrary to popular belief, using air from the freezer room for the dry pipe system Will not solve the ice plug problem)
  • 11. The Solution …Dry Air Pac For Critical Applications • Freezer Rooms • Cold Storage • Parking Garages • Potential MIC Effected Areas • Anywhere Dry Air is Essential
  • 12. Dry Air Pac For Critical Applications Primary Components
  • 13. FM Approvaleliminates requirementto connect air intake tofreezer room.
  • 14. Industrial Duty Compressor Pump
  • 15. Removable Intake Filterwith Weatherhood
  • 16. Compact Air Cooled Aftercooler
  • 17. Pressure Switch
  • 18. Check Valve
  • 19. ASME / NB Tank (30 Gallons)
  • 20. Integrated Electronic Drain
  • 21. Vibration Isolation Pads
  • 22. Prefilter with Differential Pressure Gauge
  • 23. SAEJ10 Towers
  • 24. Purge Pressure Gauge
  • 25. Oversized Mufflers for quietdischarges and lowbackpressure
  • 26. UL Listed / FM Approved Air Maintenance Device
  • 27. Combination Afterfilter & Regulator
  • 28. Dry Air Outlet
  • 29. Dewpoint Test Port
  • 30. Dry Air Pac Test Kitgives visual indication if moisture is present(Available as option).
  • 31. Fully Integrated Control Panel ensures package performs tospecification.
  • 32. A Closer Look at the Fully Integrated Control Panel
  • 33. Fully Integrated Control Panel –Performance Lights
  • 34. Fully Integrated Control Panel –•Reset Button•Control Panel Power•Incorporated AutomaticDrain Controls
  • 35. Fully Integrated Control Panel –Hour Meter
  • 36. Fully Integrated Control Panel –Receiver Pressure Gauge
  • 37. Fully Integrated Control Panel –Left Tower Pressure Gauge
  • 38. Fully Integrated Control Panel –Right Tower Pressure Gauge
  • 39. Fully Integrated Control Panel –Outlet Pressure Gauge
  • 40. Inside the Control Panel
  • 41. Inside the Control Panel –Magnetic Line Starter(NEMA Rated)
  • 42. Inside the Control Panel –Control Circuit Transformer(with primary and secondary fusing)
  • 43. Inside the Control Panel –Cam Timer
  • 44. Inside the Control Panel –Solenoid Valves
  • 45. Dry Air Pac For Critical ApplicationsTroubleshooting
  • 46. Troubleshooting the Dry Air PacProblem Probable Cause SolutionPoor Dewpoint Low pressure on Reset Pressure SwitchPerformance desiccant dryer . Excessive water or oil in Check coalescing filter & dryer automatic drain operation Low purge flow Check purge pressure setting Desiccant contamination Check the date of the last desiccant change. Recommended change every 1 to 2 years High inlet temp. to dryer Clean aftercooler
  • 47. Troubleshooting the Dry Air PacProblem Probable Cause SolutionExcessive Switching valve Check tower-operatingPressure Drop failure . sequence to verify and identify . which valves are operating. Desiccant breakdown Change desiccant Clogged filters Change filter elements
  • 48. Troubleshooting the Dry Air PacProblem Probable Cause SolutionSwitchover Electric power loss Turn dryer off; checkFailure . . connections to cam timer and inlet to unit. Solenoid valve failure Check valve operative sequence. Replace valve.
  • 49. Troubleshooting the Dry Air PacProblem Probable Cause SolutionRepressurization Purge flow control valve Clean orFailure or Purge orifice clogged. replace. .Failure Failed check valve. Replace. Purge exhaust solenoid Turn dryer off, check valve failure. connections to cam timer, inspect valve and solenoid, replace if necessary. . Purge exhaust muffler Clean or replace. clogged.
  • 50. he Leading Manufacturer of Air Compressors Designed for All Types of Dry Pipe Sprinkler Systems Call Toll Free 1-800-345-8207 Or visit our web site www.GeneralAirProducts.com

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