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VonDemHagen, Rebecca

From: Pamela Waterman <engineeringink@earthlink.net>

Sent: Monday, May 12, 2014 4:51 PM

To: VonDemHagen, Rebecca; richardastrust.com

Cc: Newberg, Cindy; Sheppard, Margaret

Subject: Re: FW: window ac unit R443A

Hello Rebecca, 

Thanks again for this information and clarification about our options for submitting the R443A application for use in 

window AC units, as well as about the timings and procedure for the proposed ruling. We now have all the information we 

need for the addendum and are working on it with the goal of emailing it to you this week. 

Regarding proposed uses of R443A, any information that we have submitted or will submit that involves this refrigerant no 

longer contains any Confidential Business Information and is now considered public. 

Sincerely, 

Pamela J. Waterman, technical writer for Richard Maruya, AS Trust & Holdings 

engineeringink@earthlink.net 

480-897-3380 PT Phoenix AZ 

www.EngineeringInk.com 

-----Original Message----- 

From: "VonDemHagen, Rebecca" 

Sent: May 12, 2014 10:22 AM 

To: "richardastrust.com" , Pamela Waterman 

Cc: "Newberg, Cindy" , "Sheppard, Margaret" 

Subject: FW: window ac unit R443A 

Hi Richard & Pam,

As clarified back in December, if you wish to submit an application for R‐443A in window AC units, this should be

done as either an addendum to the existing R‐443A application or as a standalone submission. Please see the e‐

mail below for additional information. If you have an idea of the timeframe for submission, please let us know.

Also, about a month ago you submitted additional information on the existing R‐443A submission. You

submitted only 1 copy and did not mark any confidential information. Do you wish to claim any of that

information as CBI? If so, please send us 2 new copies, one with the CBI [marked] and the other with the CBI

redacted.

Lastly, as follow‐up from our conference call on May 7, I would like to provide clarification on one point. The

spring and summer rulemakings will both be proposed rules. Any new or changed listings are not effective until

after a final rule is published, following the proposed rule and a public comment period. Please note that EPA is

not reviewing or concurring with your meeting summary. I am simply clarifying a point that I believe you may

have misunderstood.

Thank you,

Rebecca von dem Hagen

Stratospheric Protection Division

Office of Atmospheric Programs

U.S. Environmental Protection Agency
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(202) 343‐9445

vondemhagen.rebecca@epa.gov

From: VonDemHagen, Rebecca  

Sent: Thursday, December 12, 2013 2:00 PM

To: richardastrust.com

Cc: Sheppard, Margaret

Subject: RE: window ac unit R443A

 

Hi Richard,

In order to apply for SNAP approval for R‐443A in window units, you will need to submit an addendum

to your current applications for R‐443A in residential AC and heat pumps. You may also submit an

entirely new applications, but the addendum should be simpler. In the addendum please identify any

areas where changes or additional information are needed for the use of R‐443A in window units

throughout the application. Examples of information we will be looking for include the charge size, any

differences in servicing and disposal, use of the safety valve, locations in the US for manufacturing

and/or charging, and any changes to the fault tree analysis. As I’m sure you are aware, UL has

developed a standards for the use of flammable refrigerants in window units, UL484. Please indicate

your intentions to follow this standard or any deviations from it.

Also, I have a quick question for you.  In your submission for R‐443A you claim the composition of the

substitute as confidential.  As the composition is now public through ASHRAE, do you intend to drop

this CBI claim?  

Thank you,

Rebecca von dem Hagen

Stratospheric Protection Division

Office of Atmospheric Programs

U.S. Environmental Protection Agency

(202) 343‐9445

vondemhagen.rebecca@epa.gov

From: richardastrust.com [mailto:richard@astrust.com] 

Sent: Tuesday, December 03, 2013 11:08 AM 

To: Sheppard, Margaret; VonDemHagen, Rebecca 

Cc: ED WUESTHOFF; gary; pam; frank doyle; andy Tujios; steven mella; Steve Milz; george; Claudette Juska; Brian 

Canty; James Rachel 

Subject: window ac unit R443A

 

Rebecca and Margaret

I hope everyone had an enjoyable Thanksgiving holiday. At present, a American window, split unit air-condition company 

out of San Antonio, Texas, has been testing my 2 refrigerants for their ac units. 

A question came up and they wanted to know if there is a way, since I have a completed application with SNAP/EPA for R441A 

for use in window air conditioners, that I could submit a application or addendum for R443A for use in window ac units. This way instead of

buying 2 different refrigerants they would just purchase one. R441A has a completed application for household and light commercial

 ac units.(see attached) R443A has a current application pending for residential split unit, central and heat pumps.

I would like to find out what is needed to get the proper documentation together so we can submit this application or addendum without
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any problems. In short, what would my team need to expedite this to have R443A added to the R441A completed application or get

a separate completed application from EPA. 

Please let me know.

Thank you

Richard

Richard Maruya

phone 808 2351890 fax 808 235 0116 cell 808 5614688

e mail richard@astrust.com or mailto:richard@maruya.net

web site HCR188C http://www.hcr188c.com/

The "CLIMATE FRIENDLY" Refrigerant

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