Customer Success Story: Full AC Replacement – Plano, TX

📍 Location: Plano, TX
🏠 Home Type: Single-Family Residence
🔧 Service: Complete HVAC Replacement – 1989 R-22 System ➡️ New R-32 Goodman System

A Plano homeowner reached out after their original 1989 HVAC system began leaking refrigerant. The unit ran on R-22, a refrigerant no longer manufactured. We upgraded the home with a 14.3 SEER2 Goodman R-32 complete system, delivering modern performance, better energy efficiency, and a future-ready refrigerant.
At Greentech Engineering Heating and Air Conditioning, we go beyond simply “installing.” Our licensed technicians follow strict procedures to protect the system’s integrity and long-term performance.
Our expert installation process included:
✅ Sanding copper lines before cutting to avoid debris contamination
✅ Removing service valve cores before brazing to protect internal plastic seals
✅ Using wet rags around brazing joints to shield sensitive components from heat damage
✅ Flowing dry nitrogen during brazing to prevent internal oxidation and soot buildup in copper lines

✅ The Result:
• Clean, efficient installation
• Long-lasting system performance
• Happy Plano homeowner ready for Texas summer

📞 Upgrading from an old R-22 system? Trust Greentech for expert work and quality that lasts.