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Positive Displacement Chillers

Positive Displacement Chillers. Magnetic Bearing Chillers. Business Portfolio. Revenue $12.2 B . Chemicals 10 %. Others 3%. HVAC 87%. HVAC $10.3 B. Chemicals $885M. Semiconductor Etching. Residential. HFC-Gas. Commercial. Others $380M. Oil & Water Repellants.

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Positive Displacement Chillers

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  1. Positive Displacement Chillers Magnetic Bearing Chillers

  2. Business Portfolio Revenue $12.2 B Chemicals 10 % Others 3% HVAC 87% HVAC $10.3 B Chemicals $885M Semiconductor Etching Residential HFC-Gas Commercial Others $380M Oil & Water Repellants Marine Container Fluor-o-resin Coating Stone Protect ant Medical Equipment Convenience Pack Piston Pumps Fluor-o-resin Gaskets, O Rings, Fuel Line Electronics/Software PTFE Raw Material Ultra High Performance Air filters Defense System Division Precision Aircraft components & Ammunition Hydraulics & Multilevel Parking Systems 2

  3. Investing in the Future New $50 million, 49,000 square-foot Daikin McQuay Applied Development Center Is the world’s most advanced facility for HVAC research and development. 3

  4. Introducing Daikin McQuay Pathfinder 4

  5. Magnitude™Chillers • Two models, from 145 to 550 tons • Magnetic bearing compressor system eliminates the efficiency losses inherent with traditional compressors • McQuay was first in the chiller industry to utilize magnetic bearing technology, in 2004 5 Magnitude™ WME Magnitude™ WMC 5

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  7. Innovative Compressor Design Magnetic bearings No contact = No friction = Greater efficiency Oil-free design No contact surfaces = No oil or oil handling equipment Integrated variable frequency drive VFD VFD Magnitude™ WME Compressor Magnitude™ WMC Compressor 7 7

  8. Compressor Components 2 Stage Direct Drive Centrifugal Impellers Inverter speed control Inlet Guide Vanes Motor and Bearing Controls Permanent Magnetic Bearings and Shaft 8

  9. How does it work? • Magnets Levitate Shaft and Impeller • Electromagnets Position Shaft 100K times/sec • Position Held within .00002 inches • Permanent Magnets Support Most of Load • Direct Drive 97% Efficient Synchronous Motor • Dual Two Stage Compressors with VFDs and Inlet Guide Vanes • Capacitors Provide Coast Down Protection 9

  10. Turbocor compressor has permanent magnetic shaft and bearings, position is “trimmed” with electromagnets. 10

  11. Magnetic Bearing System • Even with a hole saw plug, the Auto-Balance feature kept the shaft and impeller precisely in the center of the bearings. 11

  12. Does this Compressor Handle a Power Outage? Yes • Motor becomes a generator • After the compressor comes to a complete stop, the rotor de-levitates normally onto touchdown bearings. 12

  13. Sustainability of Performance 13

  14. Industry Leading Performance 14

  15. Industry-Leading Performance What this means for owners... • Energy savings at non-peak loads • LEED Energy and Atmosphere Credit 1 (EAC1), Optimize Energy Efficiency, for 1 to 19 possible points • Potential qualification for rebate programs 15 15

  16. Oil-Free Design • Compare to normal centrifugal chiller • NO Oil heater • NO Oil cooler • NO Oil pump and starter • NO Reservoir • NO Oil relief valves • NO Oil piping • NO Oil Sensors and controls • Greater reliability • “Fewer things to break” • Reduced maintenance costs 16

  17. Tremendous flexibility • Single refrigerant circuit with two compressors • Oversized vessels with one compressor operating • One compressor running with entire vessel active up to 60 percent of load • Standard compressor isolation valves • Improved serviceability • Allows easy compressor removal 17

  18. Great Unloading • Chiller unloads to 10% • Each compressor unloads to 20%. • Variable frequency drives • Inlet vanes for severe duty • Great choice for applications requiring small capacities • Hot gas bypass is not needed • Unloads by slowing the compressor speed • Built in variable frequency drives 18

  19. Quietest Chiller in its Size Range • Sound pressure levels as low as 76 dBA per ARI Standard 575 • Ideal for schools, condos, libraries and healthcare facilities 19

  20. Very User Friendly Controls • MicroTech II control system • Touchscreen control • Industry’s latest control system 20

  21. Easy BAS Interface • LonMark, BACnet, Modbus Interface Modules • Allows choice of building automation system (BAS) vendors • Protocol select ability • 256 points of data 21

  22. Great for Retrofits 83.0” (2109 mm) Stacked Shell = Smaller Footprint 43.5” (1105 mm) Typical WMC250D 22

  23. WME Footprint 23

  24. Real Savings in Real Jobs One Crawford Condominiums Portsmouth, Virginia We saved 3,000 a month in electrical costs after replacing our old chillers with two Daikin McQuay frictionless centrifugal chillers. And the units are so quiet, the residents living directly below the chillers cannot hear them operate. Charles Twine, Vice President of the Crawford Residents Association 24

  25. Real Savings in Real Jobs Florida Community College, North Campus Jacksonville, Florida We installed a 300-ton Daikin McQuay frictionless centrifugal chillers as part of an upgrade to our campus chiller plant and BAS system. The North Campus reduced its electrical usage by 519,514 kWh in the first six months. This chiller contributes 30 to 40% of our energy savings for the entire system upgrade. Mark Gandy, North Campus HVAC Facilities Manager 25

  26. Payback using WMC vs. Scheduled Chiller 26

  27. Simple Payback – Replacing Existing Chiller 27

  28. SUMMARY -- What is important?? • WMC&E -- New frictionless chiller technology • Benefits • Tremendous part load performance • Quick payback • Extremely low sound levels • Great unloading -- VFD • Environmental Friendly R134a • Product Line Extension 28

  29. Questions or Comments? 29

  30. What about impeller stresses? • Higher RPM, Higher Stress? • Dynamic Stress is proportional to tip speed • Large Impeller stress is same as small impeller stress • High Speed technology is not NEW ! • HVAC News, June 24th, 2002 Issue • “High Tech Refrigerator for Hubble’s telescope” • Small turbine the size of a pencil is used spinning at 400,000 RPM • NCS Engineers choose high speed for low vibration • Turbocharger in a car or diesel engine spins at over 100,000 rpm! • Gas turbines used in aircraft, which we all fly on, spin at over 50,000 rpm.

  31. Compressor Design - Tip Speed/Dynamic Stress Tip Speed (fps) = (rpm x dia.x π)/ (12in x 60 s/m) 653 fps = (11,884 x 12.6 x π)/ (12 x 60) 629 fps = (3550 x 40.6 x π)/ (12 x 60) Note: Trane does not manufacture an impeller that is 40.6 inches. This is another reason why Trane has multi-stage to reduce diameter size. 31

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