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Garden Spot Village Flat Plate Heat Exchanger and VFD Additions December 3, 2009

Garden Spot Village Flat Plate Heat Exchanger and VFD Additions December 3, 2009. Energy Management of the Wet Side. Addition of a Variable Frequency Drive to the existing 75 horsepower Heat Pump Condenser Water System Reduced Energy Consumption and that’s all

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Garden Spot Village Flat Plate Heat Exchanger and VFD Additions December 3, 2009

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  1. Garden Spot VillageFlat Plate Heat Exchanger and VFD AdditionsDecember 3, 2009

  2. Energy Management of the Wet Side • Addition of a Variable Frequency Drive to the existing 75 horsepower Heat Pump Condenser Water System • Reduced Energy Consumption and that’s all • Installed with safety and failure recovery in mind • Addition of a Flat Plate Heat Exchanger to the existing Chilled Water System • Reduced Energy Consumption and equipment run times • Independent systems benefiting from a common design and installation team

  3. Chilled Water Plant Modifications

  4. Chillers ~ ~ Building Loads ~ ~ Controlled Bypass VFD VFD Current Chilled Water Plant System Pumps and VFDs Cooling Tower

  5. Chillers ~ ~ Building Loads ~ ~ Controlled Bypass VFD New Flat Plate Heat Exchanger VFD Proposed Chilled Water Plant System Pumps and VFDs Cooling Tower

  6. CHW System Modifications • Turnkey Project • Includes Engineered drawings and stamp • Includes Flat Plate Heat Exchanger, piping, valving, insulation and control modifications • Saves energy • Reduces Chiller run times • Stabilizes system temperatures • Protects equipment investment

  7. Condenser Water Pump Modifications

  8. Over-sized 75hp pumps throttled down with discharge balancing valves Manual Balancing Valves at 20%? Current Heat Pump Condenser Water System

  9. Manually set redundant VFDs set to match flow requirements Valves opened to 70%? VFD Proposed Heat Pump Condenser Water System VFD

  10. Condenser System Modifications • Turnkey Project • Includes VFDs and all wiring • Saves energy

  11. Energy Savings • 3300 fewer Chiller run hours • 50% reduction in Condenser water pump consumption • At current rates - $38,000 per year in reduced energy cost • At proposed rates - $45k to $50k in annual energy savings.

  12. Questions?

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