🏠 Location: Carrollton, TX 75010
🔧 Issue: 2009 R-22 downstairs system couldn’t beat summer heat. Vents roared like wind tunnels, and the unit seemed to run forever.
🔍 Diagnostic
Supply Side: Only 3 main supply trunks (≈ 635 CFM) feeding a 3-ton system that needs ≈ 1200 CFM.
Return Side: Single 16″ return (≈ 1000 CFM) = airflow bottleneck.
Junction Boxes: Triangle splitters added friction, boosting static pressure and noise.
Result → High static pressure, high air speed, low true airflow: loud vents, long run times, poor cooling.
🛠️ Solution
New Equipment: Installed Goodman 14.3 SEER2 furnace, coil & condenser plus Clean Comfort® Air Cleaner for healthier air.
Plenum Upgrade: Custom supply & return plenums sized for the new airflow.
Supply Ducts: Upsized trunks to deliver ≈ 1005 CFM—a 58 % gain.
Return Ducts: Added a new 12″ hallway return, raising return capacity to ≈ 1500 CFM.
Friction Fix: Replaced two triangle boxes with smooth-radius wyes to cut turbulence.
🌟 Results & Value
✓ Vent noise dropped to a whisper.
✓ Home now cools quickly—even on 100 °F days.
✓ Shorter run cycles = lower energy bills and longer equipment life.
✓ Balanced airflow protects ECM blower & compressor from strain.
Why It Matters: Great equipment can’t overcome bad duct design. Proper sizing and smooth airflow are the secret sauce for comfort, efficiency, and quiet operation.
📞 Need duct & system experts? Greentech Engineering Heating & Air Conditioning delivers honest diagnostics and precision installs across Carrollton & the DFW metro.
(469) 551-6806 | greentechdfw.com
