About 407C

Guardian® R-407C systems are the high-value, high-efficiency solution for outdated HVAC systems and retrofits. R-407C is a readily available, low cost refrigerant with a low Global Warming Potential. To help answer questions you may have about Guardian® R-407C systems and installation, below is a collection of resources with in-depth specifications and related product details. Information provided below may be subject to change.

R407C FAQ, R407C Fact Sheet, 407C Sell Sheet

Cost Effective

Independent panels provide quick access for unit setup.  Installation time is reduced by easy power and control wiring access.  The factory installed filter-drier means less time spent brazing and charging the system.  The small base dimension and reduced unit clearances make for easier retrofits.

Quality Condenser Coils

High-efficiency microchannel aluminum coils are manufactured using an improved material system, providing reliable performance and small unit size.

Flex Coils with TXV Matches

A true bolt-on TXV, valve assembly and equalizer tube is available with no brazing required. Different TXVs are available for older copper coils (Aeroquip fitting) and for new MaxAlloy™ aluminum coils (Chatleff fitting).

Outstanding Warranties

All of our R-407C systems are designed, engineered and assembled in the United States and come with a full, 5-year parts and compressor warranty administered by Guardian® – no registration required.

Be Certain with Certification

Guardian® home comfort systems are designed and built to provide maximum quality, comfort and efficiency for your home. Guardian® manufacturing meets world-class standards to ensure the highest quality product for your home.

Be Certain with Certification


Quality and Comfort

Guardian® encourages professionalism through North American Technician Excellence, Inc. (NATE). NATE is the leading certification program for technicians in the heating, ventilation, air conditioning and refrigeration (HVAC/R) industry, and is the only testing organization supported by the entire industry.

Quality and Comfort