AC Question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tdangle · 06-05-2017, 04:39 PM

I'm working on getting my AC up and running. Will be changing over to R134. Since the metal portion of the line from the condenser to the expansion valve is cracked, I removed the line and opened up the back output of the POA valve. I applied 60 PSI of air to the input of the expansion valve and with a gauge hooked up to the low side connector (on the POA) it opens at 27 psi. Should be 29, correct? Am I doing something wrong?

Air is going thru the expansion valve then thru the evaporator and then to the POA valve. I think this is the correct setup.

06-05-2017, 04:39 PM	#1
tdangle Registered User Join Date: Mar 2005 Location: Jurupa Valley, Ca Posts: 1,210	AC Question I'm working on getting my AC up and running. Will be changing over to R134. Since the metal portion of the line from the condenser to the expansion valve is cracked, I removed the line and opened up the back output of the POA valve. I applied 60 PSI of air to the input of the expansion valve and with a gauge hooked up to the low side connector (on the POA) it opens at 27 psi. Should be 29, correct? Am I doing something wrong? Air is going thru the expansion valve then thru the evaporator and then to the POA valve. I think this is the correct setup. __________________ Terry 1970 Custom Camper/C20 , GM Crate 350/7004R, Dana 60, factory AC



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.