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R1234YF Service Equipment - PowerPoint PPT Presentation

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R1234YF Service Equipment. Status of R1234YF Service Equipment 2/06/09. R1234YF Service Equipment. New SAE Standards: J2843 Recovery Recycling Recharge Equipment for R1234YF J2851 Recovery Only Equipment for R1234YF. R1234YF Service Equipment. SAE J2843

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R1234YF Service Equipment

Status of R1234YF Service Equipment


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R1234YF Service Equipment

  • New SAE Standards:

    • J2843 Recovery Recycling Recharge Equipment for R1234YF

    • J2851 Recovery Only Equipment for R1234YF

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R1234YF Service Equipment

  • SAE J2843

    • Same performance requirements as SAE J2788

      • 95% Recovery Efficiency

      • +/- 1 Ounce Recovery Accuracy

      • +/- .5 Ounce Charge Accuracy

    • Same purity requirements as SAE J2788

      • 500 ppm HBR (Oil)

      • 150 ppm Noncondensables

      • 50 ppm moisture

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R1234YFService Equipment

  • New Safety Requirements J2843/J2851

  • ANSI/ISA-S12.12.01-2000 Reference NFPA-70 and NFPA497 Class 1/Division2/Zone2

    • Class 1 Flammable gas or vapor

    • Division 2 Flammable atmosphere only occurs due to abnormal operation leaks, lost ventilation, etc

    • Zone 2 Flammable atmosphere is not likely to occur in normal operation

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R1234YF Service Equipment

SAE J2843 and J2851 new requirements :

  • Class 1/Division 2/Zone 2 requires nonincendive method:

    • Use of nonarcing make/break components by:

      • Sealing

      • Limiting current and voltage

      • Using arc suppression methods

  • Limiting the surface temperature of exposed components to < 405C

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    R1234YFService Equipment

    SAE J2843 and J2851 new requirements:

    Control discharge of refrigerant normally vented during the service process.

    • Collecting and directing refrigerant into the garage ventilation system.

      • Air Purge

      • Oil Drain

      • Vacuum Pump Exhaust

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    R1234YF Service Equipment

    • Other Changes from R-134a Equipment:

      • New Charge Coupling and Hoses

      • New unique tank fitting and tank color

      • Air Purge Circuit Calibration

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    R1234YF Service Equipment

    Related standards:

    • J2888 Service Standard for Hose, Fittings and Couplers for Mobile AC systems.

    • J2844 Refrigerant and purity and container standards for refrigerant used in mobile equipment.

    • J639 Revision

      • Service ports for R1234YF

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    R1234YF Service Equipment

    Test Status:

    • Prototypes deployed supporting mobile AC development .

    • Months of operation with no issues.

    • Recovery efficiency and charge accuracy same as R134a (as expected)

    • Preliminary recycling testing being conducted.

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    R1234YFService Equipment

    Open issues in finalizing standards and designs:

    • Test agencies approved by the EPA (UL and ETL) have not committed to a plan for testing and certification.

      • A proposed revision to UL1963 is being submitted to expedite final construction definition and test requirements.

    • Need to take into account and incorporate global requirements.