1 / 26

Circulator Selection For Radiant

Learn how to choose the right circulator for your radiant heating system. Taco 007 and 0010 are perfect for fin tube and radiator applications, while high flow, low head circulators are ideal for zone pumping. Discover the best options for different scenarios and the importance of calculating head loss.

slindsay
Download Presentation

Circulator Selection For Radiant

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Circulator Selection For Radiant The right circulator for the right job

  2. Baseboard? No Problem! • Taco 007 fits most fin tube applications • Taco 0010 fits most radiator applications • High flow, low head – flat curve • Fine for zone pumping • Great for zone valves

  3. Radiant’s A Little Different… • Higher head loss • 300’ loops of ½” PEX • Smaller tube between the joists • Long distribution runs to remote manifolds • Glycol complicates things • As do mixing valves • HIGH flow rates for snow melt • May need several different circs on one job

  4. Here’s An Example… • Basement - slab: • M1 – 950 SF, 15 BTU/SF • 3 325’ loops, ½” PEX • 3 GPM @ 10.5’ head • 1st Floor – joist/plates • M2 – 650 SF, 21 BTU/SF • 5 200’ loops, ⅜” PEX • 2.75 GPM @ 12’ head • M3 – 550 SF, 18 BTU/SF • 5 190’ loops, ⅜” PEX • 2 GPM @ 6’ head

  5. Here’s An Example… • 2nd Floor – joist/plates • M4 – 700 SF, 18 BTU/SF • 5 230’ loops, ⅜” PEX • 2.75 GPM @ 9’ head • M5 – 400 SF, 25 BTUH/SF • 4 165’ loops, ⅜” PEX • 2 GPM @ 7’ head • Garage – slab • M6 – 1000 SF, 20 BTUH/SF • 3 330’ loops, ⅝” PEX • 4 GPM @ 11’ head

  6. Let’s Review • M1: 3 GPM @ 10.5’ head (basement - slab) • M2: 2.75 GPM @ 11’ head (1st floor – plates) • M3: 2 GPM @ 6’ head (1st floor – plates) • M4: 2.75 GPM @ 9’ head (2nd floor – plates) • M5: 2 GPM @ 7’ head (2nd floor – plates) • M6: 4 GPM @ 11’ head (garage – slab) • We need to factor in supply piping

  7. Calculating Head Loss • For copper: • Measure longest run • Multiply by 1.5 (for valves, fittings) • Multiply by .04 (4’ head/100 feet of pipe) • Pipe must be sized properly • 2-4 GPM = ¾” • 4-9 GPM = 1” • 8-14 GPM = 1¼” • 14-22 GPM = 1½”

  8. Example • Manifold 1: 3 GPM @ 10.5’ head • ¾” copper • Total run = 28’ • 28 x 1.5 = 42’ developed length • 42 x .04 = 1.7’ additional head • M3 totals: 3 GPM @ 12.3’ of head • Taco 008

  9. But What If… • We had some ⅝” PEX leftover? • Total run - 28 feet– no fittings • Adds approx 3’ head • M1 total: 3 GPM @ 13.5’ head • Still Taco 008

  10. Let’s Do The Rest • M2 - 2.75 GPM @ 11’ head • Total run – 60’; 1200 SWT • W/ ⅝” PEX add » 5.0’ • 2.75 GPM @ 16’ • Taco 0014 • W/ ¾” copper: • 60’ x 1.5 = 90’ • 90’ x .04 = 3.6’ • 2.75 GPM @ 14.6’ • Taco 008 Head loss for copper Total run x 1.5 = developed length Developed length x .04 = total head

  11. Manifold 3 • 2 GPM @ 6’ head • Total run – 40’; 1200 SWT • W/ ⅝” PEX add » 2’ • 2 GPM @ 8’ • Taco 007 • W/ ¾” copper: • 40’ x 1.5 = 60’ • 60’ x .04 = 2.4’ • 2 GPM @ 8.4’ • Still Taco 007 Head loss for copper Total run x 1.5 = developed length Developed length x .04 = total head

  12. Just For Giggles… • What if we combined M2 & M3? • 1 circulator + zone valves or manifold actuators • 4.75 GPM @ 16’ • 1” main trunk, PEX or copper branches • What circulator would we need? • Taco 0014!

  13. Let’s Finish • M4: 2.75 GPM @ 9’ head • Total run – 70’; 1400 SWT • W/ ⅝” PEX add » 5.8’ • 2.75 GPM @ 14.8’ • Taco 008/0014 • W/ ¾” copper: • 70’ x 1.5 = 105’ • 105’ x .04 = 4.2’ • 2.75 GPM @ 14.2’ • Taco 008 Head loss for copper Total run x 1.5 = developed length Developed length x .04 = total head

  14. Let’s Finish • M5: 2 GPM @ 7’ head • Total run – 85’; 1400 SWT • W/ ⅝” PEX add » 4’ • 2 GPM @ 11’ • Taco 008 • W/ ¾” copper: • 85’ x 1.5 = 127.5’ • 127.5’ x .04 = 5.1’ • 2 GPM @ 12.1’ • Taco 008 Head loss for copper Total run x 1.5 = developed length Developed length x .04 = total head

  15. Combine M3 & M4 • 4.75 GPM @ 14.8’ • 1” main trunk, PEX or copper branches • Taco 0014!

  16. Let’s Finish • M6: 4 GPM @ 11’ (garage) • Total run – 50’; 1000 SWT • W/ ¾” PEX add » 4.2’ • 4 GPM @ 15.2’ • Taco 0014 • W/ ¾” copper: • 50’ x 1.5 = 75’ • 75’ x .04 = 3’ • 4 GPM @ 14’ • Taco 008 Head loss for copper Total run x 1.5 = developed length Developed length x .04 = total head

  17. So What Will We Need? • Zone by circulator: • w/PEX S&R • 1 Taco 007 • 2 Taco 008 • 3 Taco 0014 • w/Copper S&R • 1 Taco 007 • 5 Taco 008 • Combined: • 2 Taco 008 • 2 Taco 0014

  18. Or Go 3-Speed • One circulator with 3 curves • Taco 00R 3-Speed • Designed specifically for radiant • Just dial it in!

  19. 00R – Just Your Speed! • Medium to high flow • Higher head for radiant applications • Makes circulatorselection easy…

  20. What Would We Need? • M1:PEX - 3 @ 13.5 (008) • M1:Cu - 3 @ 12.3 (008) • 00R – Medium speed • M2:PEX - 2.75 @ 16 (0014) • M2:Cu - 2.75 @ 14.6 (0014) • 00R – Medium speed • M3:PEX - 2 @8 (007) • M3:Cu – 2 @ 8.4 (007) • 00R – Low speed

  21. What Would We Need? • M4:PEX - 2.75 @ 15 (0014) • M4: Cu - 2.75 @ 14 (0014) • 00R – Medium speed • M5:PEX - 2 @ 11 (008) • M5:Cu - 2 @ 12 (008) • 00R – Low speed • M6:PEX - 4 @ 15 (0014) • M6:Cu - 4 @ 11 (008) • 00R – Medium speed

  22. Combined Manifolds • M2 & M3 • PEX: 4.75 @ 16’ • Cu: 4.75 @ 14.6 • 00R – High speed • Zone with manifold actuators or zone valves

  23. Combined Manifolds • M2 & M3 • PEX: 4.75 @ 16’ • Cu: 4.75 @ 14.6 • 00R – High speed • Zone with manifold actuators or zone valves • M4 & M5 • PEX: 4.75 @ 15’ • Cu: 4.75 @ 14’

  24. OOR 3-Speed – Tale Of The Tape • Highest starting torque in class • Powerful curves • High flow IFC – doesn’t kill curve • Heavy duty – not fragile • Rear-mounted switch • Roomy wiring box • Dual knockouts

  25. Some Nice Extras… • 3 speeds – 3 motor windings • Burn out 1 speed – can use the other two! • Only 3-speed withreplaceable cartridge

More Related