Resources

Safety Data Sheets

• Choice R-134A

• Choice R-22

• Choice R-410A

• Choice R-420A

• Choice R-421A

• Choice R-421B

Product Literature

Choice R-421A

• Product Brochure

• Retrofit Guidelines

• Technical Bulletin-Comparative Analysis

• Technical Bulletin - Mass Flow

• Pressure-Temperature Chart

• Pressure Empalthy Chart

Choice R-421B

• Product Brochure

• Pressure-Temperature Chart

• Pressure Empalthy Chart

Industry Bulletins

• Johnson Controls R-421A Approval

• Coastline-Baker R-421A Case Study