300tdi: How to discharge a/c circuit?

[dogman]

Where I live any day that gets near 30 degrees is a talking point, so air conditioning isn't really needed. Also the compressor is in the way for other jobs, so out it comes.

Haynes says not to discharge the circuit yourself but it really ****s me to spend money and haynes made it sound like you could dissolve a body in brake fluid, which is bs.

If the a/c hasn't been run for months, then what is in there when it's cold in the morning. Liquid? Gas?

[pop058]

IIRC, legally you cannot just discharge it to air. It should be emptied ( and contained) by an AC guy.

[Blknight.aus]

Its r134A about 800 grams of it.

if the system is fully charge there will be some liquid and some gas, if you rupture the system it will boil off to gas and dissipate.

Doing so intentionally, as mentioned previously, is an offence under various conventions and regulations. Best to call an AC guy,

[BathurstTom]

Where I live any day that gets near 30 degrees is a talking point, so air conditioning isn't really needed. Also the compressor is in the way for other jobs, so out it comes.

Haynes says not to discharge the circuit yourself but it really ****s me to spend money and haynes made it sound like you could dissolve a body in brake fluid, which is bs.

If the a/c hasn't been run for months, then what is in there when it's cold in the morning. Liquid? Gas?
Why open it, there is enough give in the rubber pipes to un-mount the compressor and move it over to the guard. I've removed two 300tdi disco motors with no problem.

[rick130]

And doing it yourself you stand a pretty good chance of ending up with a facefull of liquid and oil.
At 25° ambient system pressure will be around 80psi.

Think of it this way, if you get it professionally disconnected and capped off/sealed you'll be able to sell all the bits.

[dogman]

Thanks for those suggestions. Looks like the book is probably on the money for this one. :-)