Document ID: EPA-HQ-OAR-2009-0286-0047
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2010-05-10T04:00Z

"richardastrust.com" <richard@astrust.com> 
08/29/2007 01:39 AM	To
	Margaret Sheppard/DC/USEPA/US@EPA
	cc
	
	bcc
	
	Subject
	factory setting
	
		
	For Follow Up:	
		 
		
		Normal Priority
					
	History:	
		This message has been forwarded.			

Dear Margaret:
 
In a factory setting, majority of the new AC or refrigerator units are 
manufactored in China.
Any company producing the units will have a machine that automaticly 
charges and adds the refrigerant and oil to the system. This machine will 
also evacuate (remove the moisture)
in the system before charging. All the worker has to do is connect and 
disconnect the nozzle. It is usually a quick disconnect.  The rest is all 
done by computer and the machine is programed to only allow so much 
refrigerant and oil. The worker has nothing to do with this.  The machine 
is basically a production-line type. 
 
As far as the risk and engineering control - that I cannot answer, that 
is, China or a third world country where they never heard of OSHA.
 
Richard

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