1. Whose Fault Is It? Loop Installation Contractor Vs. HVAC Contractor Geothermal Alliance of Illinois Dom Durbin and Jeff Hurst

2. Basic Responsibilities Loop Contractor Design Loop and Piping System Based on Calculations Provided By Others Confirm Soil Conditions Relevant to Pipe Placement Install Ground Loop to Industry Standards Purge System or Provide Volume and Purging Requirement Calculations HVAC Contractor Determine Building Loads and Associated Ground Loads Install Geo Units and Air /Hydronic Delivery Systems Size and Install Circulating Pump/s (Possibly Purge) Commission System and Educate Owner on Design Use for Best Performance Geothermal Alliance of Illinois

3. Hey Dom, 4 ton Horizontal, 100 Old Creek Road Thanks For The Work Jeff, We’re On The Way! Geothermal Alliance of Illinois

4. Horizontal Trencher, Maybe… Geothermal Alliance of Illinois

5. Plan B… Geothermal Alliance of Illinois

6. End Result Geothermal Alliance of Illinois

7. Hot Loop Why Is The Loop Hot? Whose Fault Is It? How Can We Prevent It From Happening Again? What Can We Do To Fix It? Geothermal Alliance of Illinois

8. Soil Thermal Properties Thermal Texture Class Thermal Conductivity Thermal Diffusivity W/m °KBtu/ft hr °Fcm²/secft²/day Sand or Gravel 0.770.440.00450.42 Silt 1.670.96_____ Clay 1.110.640.00540.50 Loam 0.910.520.00490.46 Saturated Sand 2.501.440.00930.86 Saturated Silt or Clay 1.670.960.00660.61

9. Hey Dom, 5 Ton Pond Loop, Sink Hole Drive, Hundred Year Old Farm House on The Left Thanks For The Work Jeff, We’re On The Way! Geothermal Alliance of Illinois

10. Why is Every Pond 20 Ft Deep? Geothermal Alliance of Illinois

11. Pond and Lake Loops Geothermal Alliance of Illinois

12. Cold Loop, The Pond is an Ice Cube Excessive Run Times Geothermal Alliance of Illinois

13. Cold Loop Why Is The Loop Cold? Whose Fault Is It? How Can We Prevent It From Happening Again? What Can We Do To Fix It? Geothermal Alliance of Illinois

14. Hey Dom, 10 Ton Vertical, On Mansion Hill, Just Get It In and I’ll Take It From There Thanks For The Work Jeff, We’re On The Way! Geothermal Alliance of Illinois

16. Common Loop and Multi Pump Non Pressurized Flow Station Geothermal Alliance of Illinois Self Purging Non Pressurized

17. Cannot Flush Loop Why Can We Not Remove The Air? Whose Fault Is It? How Can We Prevent It From Happening Again? What Can We Do To Fix It? Geothermal Alliance of Illinois

18. Flow Rates to Achieve 2 ft/sec Velocity = Gal/ Min * 1 cubic ft/7.48 Gal * 1 min/60 sec * 1/Area of pipe = Ft/Second

19. Geothermal Alliance of Illinois Circulating pump @ 3GPM Per Ton, Where does Velocity Fall Short?

20. Flush Cart with a Boost Pump in Series Geothermal Alliance of Illinois System Flow Rates to Achieve 2 ft/sec Can Be Calculated

21. I Can’t Flush It, Sam Can’t Even Flush It Geothermal Alliance of Illinois

23. Cannot Flush Loop Why Can We Not Remove The Air? Whose Fault Is It? How Can We Prevent It From Happening Again? What Can We Do To Fix It? Geothermal Alliance of Illinois

24. Reverse Return Header Configuration Geothermal Alliance of Illinois