Quick Facts on R452A:
• Class A refrigerant, non-flammable
• No compromise on end user safety
• No compromise on equipment lifetime
• No compromise on cargo load safety
R452A Performance Results
There are no changes to the refrigerant oil and system internal components between units operating on R404A and units operating on R452A. Operating pressures, and efficiency are similar. TXV super heat setting is different between R404 and R452A. TXV replacement is required if a unit is converted from R404A to R452A.
Refrigerant recovery and system evacuation and re‐charge must be done according to the standard Thermo King recommended procedures. Like any other refrigerant R452A cannot be mixed with R404A or other refrigerant, therefore, to avoid cross contamination of recovered refrigerant it is vital that recovery systems including recovery pump and gauge manifolds and related hoses are purged completely prior to being used on any other refrigerant type.