1. MULTISTACK WORLD-WIDE HEADQUARTERS SPARTA, WISCONSIN

2. MULTISTACK OVERVIEW 2009 is the 20 th Anniversary for Multistack Multistack is the recognized world leader in modular chillers Customer service is the main priority at Multistack. If you need it and we don’t make it, we will try to make it for you Multistack has a team of service technicians that travel the world for start-ups Available in individual modules or pre-assembled into arrays on lifting frames Multistack offers both sales and service schools in our Sparta, Wisconsin facility In-house test stands for Witness Testing In-stock standard modules make for very quick shipments for emergency retrofit installations

3. AHRI CERTIFICATION Air-Conditioning, Heating, and Refrigeration Institute Multistack is AHRI Certified and continues to certify products as they are developed AHRI Certification provides real performance data Multistack has AHRI approved and certified test stands in-house

4. What are modular chillers and why do you want them in your building? Compact Design Easy Installation—Fits Through Office Door No Crane Required Retrofit or Replacement Built-in Redundancy Critical Cooling Future Capacity Low Maintenance Low Sound Signature Stock Availability for Short Lead Time Shipping Energy Efficiency—Only Run The Modules You Need Multistack Production Chillers are AHRI Certified The future of modern building efficiency is modular because… There is nothing more efficient than off

5. Water-to-Water MS50 Air-to-Water ASP30 MULTISTACK MODULES

6. Multistack is not just about Modular Chillers-- 2009 brought the introduction of full-size Flooded Units Flooded Units available in 90-540 tons Built to order in wide or tall designs

7. Theory of Modular Chillers Multiple smaller chillers connected in parallel allow array to meet building demands at peak times, but shut down modules when demand is lower. Modules use screw, scroll and centrifugal compressors Modular systems can easily be expanded for future building growth Redundancy is built-in. No need for a back-up chiller system when you have multiple compressors in parallel Installation is easy—individual units fit through office doorways and on elevators. No need for a crane or demolition Small footprint, low sound signature, AHRAE 15 compliance and more Dedicated Heat Recovery Chillers and Water-to-Water Heat Pumps integrate into arrays

8. COMPLETE MULTISTACK MODULAR CHILLER ARRAY

9. 20, 30, 50 and 70-Ton Modules Chillers from 20 to 600-Tons 410A Scroll Compressors.740 kW/Ton As quiet as 60 dB (A) Scroll Modules

10. 70, 90 and 125 Ton Modules Copeland Screw Compressor 140 to 1000-ton arrays.75 kw/ton Quiet @ 72dB(A) Currently Available in R-22, with 134A In Design Now Large Screw Modules

11. Magnetic bearings; no oil IPLV.435 kW/ton Quieter than background noise 2 A peak current inrush R-134A refrigerant Magnetic Levitation Technology MagLev™ for Multistack

12. Flooded Units Energy Efficient MagLev™ Technology Best Part-Load Efficiency Industry Leading Control Panel Available 90-540 Tons

13. Water-To-Water Heat Pump Chiller 20,30, 50 & 70 Ton Modules Arrays from 20-600 Tons Single Point Water Connection Single Point Power Connection EER’S > 17 at 45 Degrees COP’S > 4.0 at 120 Degrees

14. Dedicated Heat Recovery Chiller High Temperature Chiller Boiler Available in 140-, 160- and 180- Degree Modules Typically Three Times More Efficient Than Gas Boilers Compatible With High-Temp Hot Water System

15. Air Cooled Modules Split Version of W/C Remote A/C Condenser Refrigeration Specialties Installed Within Cabinet Dimensions in Factory Controlled Environment Same Size as W/C

16. High Efficiency Air-Cooled 410A Scroll Modules Available in 10-, 15-, 20-, 30 and 60-Ton Modules Industry Leading Efficiency Incredibly Low Sound Signature Critical Cooling Applications Environmentally Responsible Refrigerant Single Point Control System MagLev™ Modules available End-To-End or Side-By-Side Can Be Packaged To Create Chillers Up To 600-Tons High-Static Condenser Fans Available

17. Aero Thermal Air-to-Water Heat Pump Three Times Cost Savings Versus Natural Gas Economically Friendly Upgrade For Two-Pipe Systems Available in 10-, 15-, 20- and 30- Ton Modules Cost Reduction By Eliminating Well Drilling

18. Minimal refrigerant charge is safer for the environment and less costly. Significantly quieter operation than a full-sized chiller. Oil-free refrigerant system means that oil cannot make its way onto the heat transfer surfaces and degenerate the efficiency of the system. Required electrical startup current for MagLev compressor is just 2 amps versus a full size compressor requiring 500- 600 amps. A MagLev compressor’s weight is one-third of what a conventional compressor of similar capacity would be. It requires significantly less material and energy to manufacture a MagLev compressor, adding positively to carbon footprint reduction process. Magnetic Levitation (MagLev) Compressor Highlights

19. The heart of a Multistack MagLev Chiller is the Magnetic Levitation High Speed Compressor. Capable of spinning up to 40,000 rpm, the Multistack control system allows the compressor to offer maximum efficiency at almost any level of building demand. Two stage impeller offers exceptional part load efficiency MagLev™ Compressor Highlights Built-in computer to constantly monitor operation and diagnostic systems

20. Variable Simultaneous Heating and Cooling Dramatically Reduces Piping and Electrical Costs Installed Footprint Meets Architectural Limitations Fully Expandable Modular System Multistack Controls Simplify System Operation Virtual Moveable End Cap--VME

21. Virtual Moveable End Cap (VME)

22. GEOTHERMAL HEAT PUMP WITH VME TECHNOLOGY

23. Simultaneous Chilled and Hot Water Easy Addition to any Hydronic System One to Four Year Payback 75% Reduction in CO2 Emissions 10 Tons to 1000 Tons Hot Water Temps as High as 180°F Use Heat Created Cooling Your Data To Make Hot Water DEDICATED HEAT RECOVERY CHILLERS DHRC

24. 180-Degreee DHRC

25. CRITICAL COOLING APPLICATIONS Anywhere Redundancy is Required Data Centers Hospitals Operating Rooms Industrial Process Applications Manufacturing Applications Telecommunications Pharmaceutical Multiple Modules in Array Eliminate the Possibility of Single Point Failure N-1 is Always Greater than Zero N+1 is an Additional Module, Not Another Chiller System

26. REDUCE INSTALLATION COSTS WITH MODULAR CHILLERS Multistack Modules fit Through Standard Doorway Multistack Modules Designed to Ride Elevator No Crane Needed for Installation of Individual Modules Demolition and Construction Avoidance ASHRAE-15 Compliant Without Costly Mechanical Room Upgrades Single Point Power and Water Connections Standard

28. www.multistack.com Multistack 1065 Maple Ave Sparta, WI 54656 (608) 366-2400