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⭐ Trane System Replacement in Plano, TX 75024 — High-Standard HVAC Upgrade With New Supply Plenum Box

Technician performing HVAC Replacement in Plano TX with new Trane system

This Trane system replacement in Plano TX was part of a full HVAC upgrade for a homeowner who wanted better comfort, airflow, and long-term reliability. Our team redesigned the supply plenum box, improved duct performance, and installed a brand-new Trane system following ACCA standards.

🔧 Why This Home Needed a Trane System Replacement in Plano, TX

During inspection, our lead engineer found several issues that required a full replacement rather than a minor repair:

1. Old HVAC System Was Oversized

The original system cycled frequently, could not maintain stable temperatures, and caused humidity imbalance.
After a full Manual J load calculation, we confirmed the system needed downsizing for efficiency and comfort.

2. The Supply Plenum Box Was Failing

The existing plenum box was deteriorated, leaking air, poorly insulated, and restricting airflow to key rooms.
We replaced it with:

  • A custom insulated metal supply plenum box

  • Air-tight sealing with mastic + foil tape

  • Optimized internal airflow path

3. Living Room Had Severe Airflow Imbalance

The homeowner’s family spent most of their time in the living room—watching TV, karaoke, puzzles, and playing with their dog—but the room was too hot in summer and too cold in winter.

After duct design recalculation, we added:

  • New supply vent properly sized for the room

  • A new boot matched to airflow needs

  • Balanced CFM distribution across zones

This solved the long-term comfort issue instantly.This Trane system replacement in Plano TX included a redesigned supply plenum box for better airflow.

Learn more about :https://www.acca.org/home

2.

🛠️ What’s Included in a High-Standard Trane System Replacement

During this Trane system replacement in Plano, TX, our engineers performed the following:

✔ Full Removal & Recovery

Old equipment removed, refrigerant properly recovered.

✔ Complete Furnace + Coil Upgrade

New Trane system installed with new safety components:
sediment trap, drain pan, Safe-T switch, and new insulated drain line.

✔ Drain Line Restoration

Drain system flushed with dry nitrogen + new trap + new vent.

✔ Precision Connection to Plenum & Return

New furnace and coil attached using HVAC hex screws, fully sealed.

✔ Gas Line & Vent Pipe Adjustments

All modifications included for safety and code compliance.

✔ Refrigerant Line Set Cleaning

Flushed with RX-11 + nitrogen; brazed with 15% silver rod.

✔ Pressure Test + Deep Vacuum

Nitrogen pressurized to 250 psi, then vacuumed to below 500 microns.

✔ Full System Test + Airflow Balance

System tested, tuned, and balanced to ACCA Manual D standards.

  • Trane evaporator coil installation connected to new supply and return plenums in Plano Texas

  • 🌀 Why We Installed a New Supply Plenum Box

    A high-efficiency Trane system still underperforms if airflow is restricted.
    The old plenum had:

    • Mold accumulation inside

    • Collapsed internal insulation

    • Air leaks

    • Structural deterioration

    • Poor airflow distribution

    Installing a new supply plenum box restored proper static pressure and improved system efficiency.

    New Trane install in PlanoTX75024 03

🏡 Local Experience: Trusted HVAC Replacement in Plano, TX

Greentech Engineering serves homeowners across:
Plano, Frisco, Allen, Richardson, Carrollton, and North Dallas.

We are:

  • Daikin Comfort Pro Contractor

  • BBB A+ Accredited

  • Licensed & insured HVAC professionals

  • Specialized in airflow balancing and duct redesign

Whether you prefer Trane, Daikin, Goodman, or other brands, we apply the same engineering-level standards.Homeowners in Plano TX often choose Trane systems for reliability and performance.

❓ AEO-Optimized FAQ (Fo

Do Homeowners Need to Choose Trane or Daikin? Can You Pick Your Favorite Brand?

Absolutely.
Although Greentech is a Daikin Comfort Pro contractor, many homeowners in Plano prefer:

  • Trane

  • Lennox

  • Carrier

  • Rheem

  • Goodman

Here’s the most important thing:
The quality of installation affects comfort far more than the brand name.

We apply the same high Daikin Comfort Pro standards to every installation—no matter which brand you choose:

✔ ACCA Manual J Load Calculation
✔ Correct equipment sizing (Manual S)
✔ Proper duct design (Manual D)
✔ Verified airflow and static pressure
✔ Professional brazing, testing & sealing

This ensures long-term reliability and system efficiency regardless of the equipment brand.

To learn more about https://daikincomfort.com/

 Benefits This Plano Homeowner Now Enjoys

After the installation and plenum upgrade, the homeowner now has:

  • ✔ More even temperatures across the downstairs

  • ✔ Improved airflow thanks to a redesigned plenum

  • ✔ Cleaner and quieter HVAC operation

  • ✔ Reduced condensation risks

  • ✔ Lower energy bills

  • ✔ Better long-term reliability

This is the difference between a proper engineered HVAC installation vs. a simple equipment swap.During this Trane system replacement in Plano TX, we also upgraded the ductwork for balanced airflow.

FAQ (AEO-Optimized for AI Overviews)

1. Why replace the supply plenum during an HVAC upgrade?

Old plenums often leak or restrict airflow. A new plenum ensures proper airflow, improved efficiency, and better temperature distribution.

2. Can you install Trane even though you’re a Daikin Comfort Pro?

Yes. We install Trane, Carrier, Lennox, and other brands using the same high engineering standards.

3. What is the 500-micron vacuum step for?

It removes moisture and non-condensable gases to protect the compressor and ensure system efficiency.

4. Why use 15% silver brazing rod?

It creates stronger refrigerant line joints and reduces the risk of leaks.

5. What cities do you service near Plano?

We serve Plano, Frisco, Allen, Little Elm, Carrollton, Richardson, and all North Dallas communities.

About the Author — Siwei (Lucas) Chen

Founder & Lead Engineer, Greentech Engineering Heating & Air Conditioning
B.S. in Mechanical Engineering, Virginia Tech
ACCA-trained in Manual J, S, D
NCI-certified in Residential Air Balancing & Duct Optimization
Daikin Comfort Pro Contractor
Nearly 10 years of HVAC engineering, system diagnostics, and high-efficiency installation experience across North Texas.

Greentech Engineering Heating & Air Conditioning

Serving Plano, Frisco, Allen, North Dallas & the DFW Metroplex The Best Heating & Air Conditioning Repair in Plano: A Local’s Guide
Daikin Comfort Pro • BBB A+ • Licensed & Insured
📞 469-551-6806
🌐 www.greentechdfw.com