公开(公告)号：US20250026974A1

公开(公告)日：2025-01-23

申请号：US18779799

申请日：2024-07-22

Applicant: TRANE INTERNATIONAL INC.

Inventor： Michael PETERSEN ,  Stephen A. Kujak ,  Kenneth J. Schultz ,  Alexander Schmig

IPC: C09K5/10 ,  F25B45/00

Abstract: A refrigerant composition includes R1132(E) refrigerant, a second refrigerant, and a third refrigerant. The second refrigerant is one of R1234ze(E) refrigerant, R134a refrigerant, or R1234yf refrigerant. The third refrigerant is one of R32 refrigerant, R1132a refrigerant, R1123 refrigerant, and CO2. The refrigerant composition has a GWP of at or about or less than 750. A method of making a refrigerant composition for an HVACR system includes mixing an amount of R1132(E) refrigerant, an amount of a second refrigerant, and an amount of a third refrigerant. A method of retrofitting an HVACR system having an existing refrigerant composition includes adding at least one of R1132(E) refrigerant, a second refrigerant, and a third refrigerant to the existing refrigerant composition to obtain a retrofit refrigerant composition.