1. Demystifying SelfSensing Pumps

2. Design Operating Point 300 Gallons Per Minute 53 Feet of Head System Curves 150 ton system @ 12deg Delta T 60 GPM each fan coil 3-Way Control Valve

3. System Capacity (Q) in GPM Head (H) in Feet 0.00 0 100.00 7 200.00 25 300.00 53 400.00 90 500.00 136 Design Operating Point System Curves

4. 3-Way Control Valve

5. Pump Curves

6. Taco Test Lab

7. Pump Curves Input Electrical Power

8. 9.25" Diameter8.00" Diameter6.75" Diameter Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) 0.0084.46-0.054.250.0059.55-0.162.860.0039.24-0.101.75 54.1784.5725.834.4845.8359.7624.242.8837.5039.3120.801.79 108.3384.7544.235.24 100.0059.7444.253.4075.0039.1437.461.98 189.5884.1362.216.47160.4259.0558.874.06131.2538.3155.312.30 216.6783.5166.366.88 200.0058.0065.044.50150.0037.8459.562.41 270.8381.4572.607.67252.0855.8070.455.04206.2535.6467.942.73 325.0078.1776.498.39300.0052.7673.035.47225.0034.6069.402.83 433.3367.7177.929.51343.7549.0773.635.78281.2530.3670.073.08 406.2570.8278.389.27400.0042.8471.446.05300.0028.5469.013.13 487.5060.5475.209.91 458.3334.6064.856.18375.0019.1056.703.19 541.6752.1569.8510.21 500.0027.4356.086.17 412.5013.1443.963.11 650.0032.1150.1010.52550.0017.4339.856.07450.006.4924.712.99 KS Model 4009 Test Data at 1760 RPM Pump Curves

9. 9.25" Diameter8.00" Diameter6.75" Diameter Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) 0.0084.46-0.054.250.0059.55-0.162.860.0039.24-0.101.75 54.1784.5725.834.4845.8359.7624.242.8537.5039.3120.801.79 108.3384.7544.235.24 100.0059.7444.253.4075.0039.1437.461.98 189.5884.1362.216.47160.4259.0558.874.06131.2538.3155.312.30 216.6783.5166.366.88 200.0058.0065.044.50150.0037.8459.562.41 270.8381.4572.607.67252.0855.8070.455.04206.2535.6467.942.73 325.0078.1776.498.39300.0052.7673.035.47225.0034.6069.402.83 433.3367.7177.929.51343.7549.0773.635.78281.2530.3670.073.08 406.2570.8278.389.27400.0042.8471.446.05300.0028.5469.013.13 487.5060.5475.209.91 458.3334.6064.856.18375.0019.1056.703.19 541.6752.1569.8510.21 500.0027.4356.086.17 412.5013.1443.963.11 650.0032.1150.1010.52550.0017.4339.856.07450.006.4924.712.99 KS Model 4009 Test Data at 1760 RPM Pump Curves

10. 8.00" Diameter Capacity (GPM)Head (Ft)Efficiency (%)BHP (HP) 0.0059.55-0.162.86 100.0059.7444.253.40 200.0058.0065.044.50 300.0052.7673.035.47 400.0042.8471.446.05 500.0027.4356.086.17 Pump Curves KS Model 4009 Test Data at 1760 RPM

11. 8.00" Diameter Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) 0.0059.55-0.162.86 100.0059.7444.253.40 200.0058.0065.044.50 300.0052.7673.035.47 400.0042.8471.446.05 500.0027.4356.086.17 KS Model 4009 Test Data at 1760 RPM Pump Curves

12. PumpSystem Capacity (GPM) Head (Ft) Efficiency (%) BHP (HP) Head (Ft) 0.0059.55-0.162.86 0 100.0059.7444.253.40 6.91 200.0058.0065.044.50 24.91 300.0052.7673.035.47 52.76 400.0042.8471.446.05 89.83 500.0027.4356.086.17 135.74 KS Model 4009 With an 8.00” impeller Test Data at 1760 RPM Pump Curves

13. SelfSensing Pumps

14. SelfSensing Pumps vs. Sensors Correct Sensor Location Resulting System Performance Shaded area represents energy savings compared to constant speed pumps

15. ( VFD. SET AT 60. HZ.) GPM FM\FLOWFT\HEADH.P. 0.00056.8332.66 74.05556.6003.19 144.20656.5163.94 220.41655.5224.80 286.85053.3485.46 360.73749.5456.10 ( VFD. SET AT 40. HZ.) GPM FM\FLOWFT\HEADH.P. 0.00025.0900.85 48.51124.9590.99 96.34724.8871.23 143.50724.5001.47 193.07523.3911.68 240.51521.7531.86 ( VFD. SET AT 20. HZ) GPM FM\FLOWFT\HEADH.P. 0.0005.9620.16 25.4775.9340.18 48.1945.9210.21 71.4065.8720.24 96.5225.6240.27 119.5145.2450.29 SelfSensing Pumps KS Model 4007 With 7.5 horsepower motor and VFD With a 7.50” diameter impeller Test data displayed below

16. Each pump goes through a complete data collection process The data points are plotted to create pump curves at various speeds SelfSensing Pumps

17. The SelfSensing pump operates anywhere in the dark grey area of the graph SelfSensing Pumps

18. 3-Way Valve Variable Flow Constant Flow

19. SelfSensing Pumps Valves Open Maximum Flow Valves Closed Minimum Flow

20. Valves Open Maximum Flow Valves Closed Minimum Flow 60 Hz 50 Hz 40 Hz 30 Hz 20 Hz SelfSensing Pumps

21. 60 Hz 20 Hz Valves Open Maximum Flow Valves Closed Minimum Flow Control Curve

22. SelfSensing Pumps During increasing demand, the pump rides to the right (down) on the pump curve. The SelfSensing pump automatically responds and keeps the pump on the control curve. (follow A to B and so on)

23. SelfSensing Pumps During decreasing demand, the pump rides to the left (up) on the pump curve. The SelfSensing pump automatically responds and keeps the pump on the control curve. (follow I to J and so on)

24. Valves Open Maximum Flow Valves Closed Minimum Flow Constant Flow SelfSensing Pumps 60 Hz 20 Hz

25. SelfSensing Pumps 60 Hz 20 Hz Valves Open Maximum Flow Valves Closed Minimum Flow Constant Pressure

26. SelfSensing Pumps When you use the pump selection wizard, the software generates a control curve that is unique to your system configuration. If you do not specify a control head, at time of order, Taco uses 40% of the design operating point. You can adjust the control head on the selection wizard and specify the desired value on your order Control Head Control Head Adjustment

27. SelfSensing vs. Sensors

28. SelfSensing Pumps vs. Sensors Sensors are frequently placed in the wrong location in the system; this incorrect sensor placement results in system inefficiency. In a typical system, trial and error must be used (i.e. physically moving the sensor) until the optimum location is determined. Another strategy is to use multiple sensors to increase the odds of correct placement. These strategies can become costly. Even if correct placement is achieved, correct setpoint is rarely used.

29. SelfSensing Pumps vs. Sensors Incorrect Sensor Location Resulting System Performance Shaded area represents energy savings compared to constant speed pumps

30. SelfSensing Pumps vs. Sensors Correct Sensor Location Resulting System Performance Shaded area represents energy savings compared to constant speed pumps

31. SelfSensing Pumps vs. Sensors The SelfSensing pump has an advantage over sensors because you no longer have to worry about the sensor location. The SelfSensing pump automatically operates on the control curve shown. You can quickly adjust the control head on a SelfSensing pump in the field. Adjusting the control head is akin to moving the sensor to a new more optimal location in the building. This optimization strategy is now significantly quicker and cheaper when using a SelfSensing pump. Control Curve Control Head If you are having trouble deciding whether to use a SelfSensing pump or a sensor, just ask: How often does the construction team know in advance what the optimum location will be? How often does the construction team place the sensor in the perfect location?

32. SelfSensing Pumps vs. Sensors