A/C
By: 1funryd
(From: http://www.preludepower.com/forums/showthread.php?t=331907)

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To use the H22 A/C compressor with your swap you need to modify the wiring on your 3G to work with a single wire compressor.
This video shows how to do the wiring modifications: https://youtu.be/vHeX154tLd8

One note though is that you will need a different compressor connector than the one shown. This is the connector you need to match the H22 compressor: https://racespeconline.com/collections/connector-kits-1/products/honda-1-position-male-connector-kit

After the wiring is sorted out you need some custom A/C lines. 3 options here:

• Make them yourself, video on doing that here: https://youtu.be/gXvup7p4S1E
• Have a local A/C shop make them for you
• Or the easiest solution, buy pre-made ones from www.1funryd.com:

After that is sorted out if you want the system to work and be reliable you need to flush out all the old lines, evaporator, and condenser. The mineral oil used in the original system isn't compatible with the PAG-46 oil that the later R134a systems used, so you need to get it all out before using the new compressor. You should also replace the dryer and expansion valve as well. If you do those things you should have a good working A/C system that lasts.