Margaret Sheppard/DC/USEPA/US
11/01/2007 05:06 PM	To
	"richardastrust.com" <richard@astrust.com>
	cc
	Dave Godwin/DC/USEPA/US@EPA, Julius Banks/DC/USEPA/US@EPA
	bcc
	
	Subject
	Re: window ac test
	
	

Richard,
Thanks for informing me about the situation with the manufacturer and the 
testers.

If this is the case, then the risk assessment for the window unit needs to 
use the charge value based on 40% of nameplate, since that is the charge 
supported by the testing.  You may address this either by revising and 
resubmitting the risk assessment from July 2007 for window units and 
freezers, or by separately submitting revised risk assessment calculations 
for the window unit. 

Also, please identify the charge size in grams or ounces.

Margaret Sheppard
USEPA/Stratospheric Protection Division
SNAP Program
Tel. 202-343-9163
Fax 202-343-2362
email: sheppard.margaret@epa.gov


"richardastrust.com" <richard@astrust.com> 
10/31/2007 03:03 PM	
	To
	Margaret Sheppard/DC/USEPA/US@EPA
	cc
	
	Subject
	window ac test
	
	
	
	


Margaret:
 
On the 5000 BTU unit, Intertek explains that at the low charge rates, the 
room overwhelmed the unit and they could not get a steady reading. On the 
10000 BTU unit, the charge at 40% started to stabilize at the best EER. 
The attached report explains this. In order for me to get the unit to 
perform at the lower charge rates, I would need to work with the cap 
tubes. An adjustment of these tubes, would then bring the BTU up with the 
EER at around 30% charge. I don't want to attempt this at this point for 
it would create ill feeling between the manufacturer (who had an engineer 
there) and myself.
 
As per our conversation, the manufacturer would be willing to work with me 
if, and only, HCR-188C is passed. This is the one benefit I would have to 
deal with other air conditioners at a lower charge rate and a better EER.  
 
 
Richard
 


Richard Maruya
phone  808 2351890  
fax 808 235 0116
cell 808 5614688
e mail richard@maruya.net  or richard@astrust.com
web site HCR188C    www.hcr188c.com
 
 
 
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