Pressure test

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WyrTwister

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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
 
Cost and release of Freon into the atmosphere when dealing with a potential leak.
pull the system into a vacuum and see if the vacuum holds.
 
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



how did you get a epa card, not knowing you cant release r410a into the atmosphere ? :hide:
 
First of all , I said nothing of releasing R410a .

Second , I refreshed my memory and the EPA regs recognize pressure testing with R22 . Please forgive my fuzzy memory .

Be of good cheer , I did not kill off any ozone molecules . Or gassed the greenhouse .

God bless
Wyr

PS I will vacuum the system down .
 
First of all , I said nothing of releasing R410a .

Second , I refreshed my memory and the EPA regs recognize pressure testing with R22 . Please forgive my fuzzy memory .

Be of good cheer , I did not kill off any ozone molecules . Or gassed the greenhouse .

God bless
Wyr

PS I will vacuum the system down .

What if the test failed and you had a leak.?
 

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