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WyrTwister · 04-19-15, 08:36 AM

Any reason R134a could not be used to pressure test a R410a line set on a heat pump ? Instead of Nitrogen .

The R134a should be removed when you vacuum down the system ?

And , yes , I have an EPA card .

Thanks :-)
Wyr

04-19-15, 08:36 AM	#1
WyrTwister Master EcoRenovator Join Date: Jun 2013 Location: USA Posts: 543 Thanks: 6 Thanked 44 Times in 38 Posts	Pressure test Any reason R134a could not be used to pressure test a R410a line set on a heat pump ? Instead of Nitrogen . The R134a should be removed when you vacuum down the system ? And , yes , I have an EPA card . Thanks :-) Wyr