Automotive Air Conditioning Information Forum (Archives)

Provided by www.ACkits.com

We've updated our forums!
Click here to visit the new forum

Archive Home

Search Auto AC Forum Archives

Reason for orifice tube location

JFR121 on Wed June 24, 2009 12:11 PM User is offline

Year: 1994
Make: Volvo
Model: 940 wagon
Engine Size: 2.3 ltr
Refrigerant Type: 134a

This is not a repair question, but one of a/c operation. On many cars the orifice tube is located in the evaporator, and on others it is located at the outlet line of the condenser. Why would a manufacturer choose one over the other? The o-tube on my Volvo is located in an uninsulated line between the condenser and the evaporator and it would seem to me that engine heat would would be robbing the system of cooling capacity. Am I thinking correctly or just missing something? Thanks for your help! John

-------------------------
"It's hell to get old"

TRB on Wed June 24, 2009 12:45 PM User is offlineView users profile

Mostly the location was moved to the condenser to reduce cabin noise. I don't really see a lot of performance loss with one location or the other, as you still have liquid refrigerant leaving the condenser to the evap.

-------------------------

When considering your next auto A/C purchase, please consider the site that supports you: ACkits.com
Contact: ACKits.com

JFR121 on Wed June 24, 2009 2:06 PM User is offline

TRB, thank you for the information! I knew there had to be reason for the differing o-tube locations. Keep cool! John

-------------------------
"It's hell to get old"

GM Tech on Wed June 24, 2009 4:33 PM User is offline

Guarenteed it is far away to keep the "hiss" away from people's ears....funny what they B*tch about....especially under warranty...

-------------------------
The number one A/C diagnostic tool there is- is to know how much refrigerant is in the system- this can only be done by recovering and weighing the refrigerant!!
Just a thought.... 65% of A/C failures in my 3200 car diagnostic database (GM vehicles) are due to loss of refrigerant due to a leak......

Back to Automotive Air Conditioning Forum

We've updated our forums!
Click here to visit the new forum

Archive Home

Copyright © 2016 Arizona Mobile Air Inc.