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  (R-437A*)

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DuPont™ ISCEON® MO49Plus™ refrigerant


ISCEON® MO49Plus™ (R-437A*) is an HFC retrofit refrigerant for R-12 in automotive air conditioning and stationary refrigeration systems and for replacing HCFC-containing refrigerant blends (e.g., MP39, MP66, and R-409A) in stationary refrigeration systems. ISCEON® MO49Plus ™ also replaces ISCEON® MO49 (R-413A). ISCEON® MO49Plus™ is compatible with traditional and new lubricants; in most cases no change of lubricant during retrofit is required.

ISCEON® MO49Plus™ is not recommended for use in centrifugal compressor systems or for chillers with flooded evaporators or low pressure receivers.

Note: ISCEON® MO49Plus™ is not available for automotive air-conditioning in the U.S.


General

 

Retrofit Guidelines

 

Safety and Handling

 

Technical/Properties/Engineering

 

ASHRAE #

R-437A *Pending

 

Replaces

ISCEON® MO49Plus™ replaces R-12, HCFC-containing blends (e.g., MP39, MP66, and R-409A), and ISCEON® MO49 (R-413A) .

 

Applications

  • Automotive AC systems designed for R-12
  • Refrigeration systems designed for R-12, including:
    • Food service
    • Supermarket display cases
    • Food storage and processing
    • Domestic refrigerators/freezers 
 

Benefits

  • Provides cost-effective retrofits
    • Replaces R-12, and HCFC-containing blends such as MP39, MP66, and R-409A
    • Replaces ISCEON® MO49 (R-413A)   
  • Non-ozone-depleting HFC retrofit refrigerant 
    • Not subject to phaseout under the Montreal Protocol 
  • Compatible with traditional lubricants
    • In most cases, no change of lubricant type is needed
  • Enables continued use of existing equipment
 

Performance

  • Provides similar to slightly lower efficiency vs. R-12
  • Provides lower discharge temperature vs. R-12
 

Phaseout Schedule

ISCEON® MO49Plus™ is a non-ozone-depleting substance (ODS) and, therefore, is not subject to phaseout under the Montreal Protocol regulations.

 

Lubricant Recommended

In automotive air-conditioning and stationary refrigeration systems, ISCEON® MO49Plus is compatible with traditional and new lubricants. In most cases, no change of lubricant type during retrofit is needed. Refer to the ISCEON® MO49Plus™ Retrofit Guidelines for details.

 

ASHRAE Safety Classification

ISCEON® MO49Plus™ has an ASHRAE safety classification of A1 and is non-flammable as formulated and under leakage scenarios as specified in ASHRAE Standard 34-2007. Refer to the Safety of DuPont Refrigerants (AS-1) bulletin and the MSDS for details.

 

Cylinder Sizes

See specific container size information in your country or region.

 

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 Related Links
ISCEON® Case History Library

Environmental & Regulatory Updates

DuPont MSDS Central

Related Resources


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