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A'2 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY $ 

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Eric P. Youngdale DuPont Fluoroproducts Chestnut Run Plaza P.O. Box 2915 974 Centre Road Wilmington, DE 19805 

# NOV I ~ 

## 2014
OFFICE OF AIR AND RADIATION

Re: Incomplete SNAP Submission for R-449A (Opteon (t XP40) in Refrigeration and Air Conditioning
Dear Mr. Youngdale:
Thank you for DuPont's submission to the Environmental Protection Agency (EPA). EPA established the Significant New Alternatives Policy (SNAP) program to implement section 612 of the Clean Air Act. Your application submitted on August 6, 2014 has been reviewed for completeness as part of the initial SNAP review. We have found the submission to be incomplete. The following information is necessary in order to allow the Agency to continue the review of DuPont's submission for R-449A (Opteon 9 XP40) in refrigeration and air conditioning applications.

Applications. In Part I, Section B, Number 4(a) of the SNAP submission, R-449A(Opteon ® XP40) is identified as a replaeement for R-402A, R-40213, R-404A, R407A, R-407C, R-407F, and R-507A in the following end-uses, both for new and retrofit equipment:

• Chillers • Cold storage warehouses • Commercial comfort air conditioning • Commercial ice machines • Heat transfer • Household refrigerators and freezers • Ice skating rinks • Industrial process refrigeration systems • Industrial process air conditioning • Refrigerated transport • Retail food refrigeration • Residential de-humidifiers • Residential and light commercial air conditioning and heat pumps • Vending machines • Water coolers a) Please confirm that you intend for this proposed substitute to be used in all of these end-uses.

Internet Address (URL) • httpa/www.epa.gov RecycledlRecyclable • Printed with Vegetable Oil Based Inks on 100% Postconsumer. Process Chlorine Free Recycled Paperb) The range of possible applications within some of these end-uses is broad. Please identify the specific applications for each of the following end-uses (as applicable). Examples of potential applications within these end-uses are provided to facilitate answering our question. For example, within retail food refrigeration, is R-449A proposed for use in rack systems, condensing units, or stand-alone units? Please see Table 1 as a potential template for providing your response. • Retail food refrigeration (direct rack systems, indirect rack systems, other remote condensing unit systems, stand-alone units) • Refrigerated transport (containers, refrigerated trailers/vans, shipholds) • Industrial process refrigeration (petroleum processing, chemical production, food product manufacturing) • Chillers (by use—commercial buildings, industrial, etc.—and by type of compressor--centrifugal, reciprocating, screw and scroll) 2. Charge Size. In Part III, Section D, Part (a) of the SNAP submission, you provide information regarding average charge sizes of commercial refrigeration units, which is one of the proposed end-uses for this substitute.
Please provide average and maximum charge sizes for each anticipated end-use, as listed below in Table 1:
Table 1: Specific Applications and Typical and Maximum Charge Sizes for Proposed EndUses

End-Use Retrofit or New (R, N) Specific

Application Typical

Charl;e Size k ) Maximum

Charge Size k ) Chillers Cold stora e warehouses Commercial comfort AC Commercial ice machines Heat transfer Household refri erators/freezers Ice skating rinks Industrial process ref s stems Industrial process AC Refri erated transport

Retail food refri eration

Residential de-humidifiers Residential and light commercial AC and heat pum sVending machines

Water coolers Note: Please add additional rows as needed

3. CBI Claims. If you wish to claim any of the information submitted in response to the requests above as confidential business information (CBI) under the Clean Air Act and its Amendments, please also provide two copies of your response, one containing CBI using brackets and one with CBI removed.

Here is a summary of information concerning your submission:
Substitute name: R-449A (Opteon ® XP40) Substance(s) the substitute will replace: R-402A, R-402B, R-404A, R-R407A, R-407C, R-407F and R-507A
Sector: Refrigeration and Air Conditioning End-uses: Chillers, Cold storage warehouses, Commercial comfort air conditioning, Commercial ice machines, Heat transfer, Household refrigerators and freezers, Ice skating rinks, Industrial process refrigeration systems, Industrial process air conditioning, Refrigerated transport, Retail food refrigeration, Residential de-humidifiers, Residential and light commercial air conditioning and heat pumps, Vending machines, Water coolers. New or Retrofit usage: Retrofits and New Equipment
Date received: August 6, 2014 Status of submission: Incomplete
Responses to these questions is necessary for us to begin our review. The information can be submitted via electronic mail or hard copy. If you have questions about your submission, please contact me at (202) 343-9624 or Wozniak.gerald(a

- )epa.gov

. Sincerely,

Gerald Wozniak Alternatives and Emissions Reduction Branch Stratospheric Protection Division

Cc:
Ms. Mary E. Koban DuPont Fluoroproducts Chestnut Run Plaza P.O. Box 2915 974 Centre Road Wilmington, DE 19805