Automotive Air Conditioning Information Forum (Archives)

CarvinUSA on Sat November 07, 2015 1:00 PM

Year: 1992
Make: Mazda
Model: Miata

Working on a 92' Miata. Would like to know if the high pressure side coming from the compressor goes to the top or the bottom of the condenser. All diagrams seem to indicate high pressure side (gas) should be connected to the top of the condenser and the high pressure (liquid) should exit from the bottom of the condenser. I'm looking at a Mazda parts diagram which seems to indicate the opposite. This diagram indicates that the high pressure line from the evaporator goes through the bottom of the drier and into the top of the condenser. This appears to go against standard A/C convention of gas flowing from the compressor to the top of the condenser. Any info would be appreciated.

mk378 on Sat November 07, 2015 5:13 PM

Condensers should always flow from top to bottom. This allows gravity to help the condensed liquid flow out the bottom.

Also mind the "in" and "out" on the receiver-drier, it should be marked.

Cussboy on Sat November 07, 2015 7:16 PM

I have the 1992 service manual for a Mazda truck, and it definitely shows compressor going to top of the condenser. And the lower fitting of the condenser going to the receiver drier.