Document ID: EPA-HQ-OAR-2007-0163-0083
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2009-12-15T05:00Z

From: Walter, William F CAR [William.F.Walter@carrier.utc.com]

Sent: Wednesday, August 08, 2007 4:55 PM

To: Gelmann, Elyssa

Subject: RE: R-410A component costs

Here is what I can tell you.

The numbers are directionally correct. However, the HP number would
typically be higher than the Residential AC number because more
components must be changed when transitioning to R-410A (Accumulator,
filter driers, 4 way valve, indoor coil). The Residential AC number is
in the ballpark. The HP number is probably low by $15-20. The PTAC
should be considered separately from the HP. I don't have any
information on dehumidifiers or room air conditioners.

From: Gelmann, Elyssa [mailto:EGelmann@icfi.com] 

Sent: Wednesday, August 08, 2007 2:41 PM

To: Walter, William F CAR

Subject: RE: R-410A component costs

Mr. Walter,

Our client needs the results of our cost analysis by Friday morning.
 As such, I would greatly appreciate it if you could send me any
information you are able to gather by midday tomorrow.  Even a general
opinion on whether the numbers I provided seem reasonable would be
extremely helpful.  I truly appreciate all of your help, and I
apologize for the rush.  

Thanks,

Elyssa

From: Gelmann, Elyssa 

Sent: Tuesday, August 07, 2007 1:58 PM

To: 'Walter, William F CAR'

Subject: RE: R-410A component costs

Mr. Walter,

Depending on the response, the information will be used either to
support our current numbers or will be averaged with data from other
sources to develop new estimates.  Numbers provided will be used only
indirectly (i.e., as part of an average).  Any information provided
will be considered confidential business information (CBI), and at no
point will your company’s name be used.  The R-22 to R-410A
transition analysis that the information will feed into may end up on
EPA’s public docket.  Please let me know if you need any more
information.

Elyssa

From: Walter, William F CAR [mailto:William.F.Walter@carrier.utc.com] 

Sent: Tuesday, August 07, 2007 1:43 PM

To: Gelmann, Elyssa

Subject: RE: R-410A component costs

Before I can get anyone to respond, I am going to need additional
information on where this information will be used and what is being
done to protect proprietary information.  

From: Gelmann, Elyssa [mailto:EGelmann@icfi.com] 

Sent: Friday, August 03, 2007 4:28 PM

To: william.f.walter@carrier.utc.com

Subject: R-410A component costs

Dear Mr. Walter,

Thank you for speaking with me earlier today about my question regarding
the increase in component costs when switching from R-22 to R-410A in
pre-charged appliances.  I greatly appreciate your offer to forward my
question to the applicable people at Carrier.  The reply is time
sensitive, so if it is possible to have any responses by mid-next week,
that would be ideal.  The question is as follows:

As part of an analysis to determine the total costs of transitioning
from R-22 to R-410A in pre-charged AC and refrigeration appliances,
including dehumidifiers, window air conditioners, residential air
conditioners, heat pumps and packaged terminal air-conditioners
(HP/PTAC), we are trying to quantify the cost change for the components
that need to be modified to accommodate the new refrigerant (i.e.,
thicker walled tubing to handle the higher pressure).  We are
specifically looking at modifications that are made to accommodate the
new refrigerant and not those that are implemented to increase
efficiency or improve other features.  Our estimates are provided in
the table below.  Please provide your reactions to these numbers –
are they in the correct range?  Too high?  Too low?  If you have more
accurate estimates, please provide those as well.

Type of Unit	Component cost increase for the use of R-410A

	Dehumidifiers	$3.00

	Window units	$7.00

	Residential 	$45.00

	HP/PTAC	$43.00

	

Thank you very much for your help!

Elyssa

_________________________________________________

Elyssa Gelmann

ICF International

1725 Eye St, NW

Suite 1000

Washington, DC 20006

Ph: 202.862.1204

F: 202.862.1144