Freon™ MP66 is an HCFC-based refrigerant for R-500 systems. It can also be used instead of MP39 for retrofit of R-12 in low-temperature stationary positive displacement systems such as commercial freezers where higher capacity is needed [works best <-15°F (-26°C) evaporator]. MP66 is also used in some R-12 transport refrigeration systems. Field experience has shown that no oil change is needed in many unitary and close-coupled systems.
R-401B; A1 Safety Classification
R-12 and R-500
- Low-temperature R-12 stationary positive displacement systems for commercial freezers
- R-12 transport
- Works with existing Mineral Oil (MO) in many unitary and close-coupled systems.
- Alkylbenzene (AB) oil is recommended for optimum oil return.
- One compressor oil change to AB will typically remove 50% to 80% of the existing MO, which satisfies the recommendations and requirements of most compressor manufacturers; 10% to 25% less refrigerant is needed. See retrofit guidelines for full details.
Consult the specific regulations in your country or region.
AB or MO