Air Con - Low Pressure Port ??

[S3 CGJ]

Hi all.

I just bought a canister of refrigerant off E-Bay to regas the aircon myself but wondered if anybody can confirm where the low pressure port is on the system. I don't want to guess and find out I have plugged it into the high pressure side.

Thanks,

CJ

[dvs_dave]

If you don't know or can't tell what you're looking for then I recommend you take it to someone who does. You need to know what you're doing when servicing an AC system and have specialist tools and equipment. First you have to evacuate the system and do a leak test (why else would it need charging?). Presuming all is well, you have to know and measure the exact amount of gas and lubricant to put in. Failure to do this and you run the risk of damaging the system. Once the system is correctly charged, you've got to check that the gas and liquid pressures are within the manufacturers specs or it won't work properly and may end up damaging the compressor.

I think the gas used is R22. Not sure of the handling restrictions of this. Might be worth checking on that before you go any further.

Long story short....see an AC specialist.


>> Edited by dvs_dave on Monday 22 May 21:46

[S3 CGJ]

Thank you for the lengthy answer and I know you are right that I should get somebody in who knows what they are doing.

However, I do like to tinker and as the air-con is crap anyway I'm not too bothered if it packs up completely.

The Castrol canister I have is specifically for home use. I just need to know where the low pressure port is before I take the bonnet off and spend a while looking for it/guessing.

Cheers

[dvs_dave]

It'll be on the larger diameter metal pipe. Broken AC is expensive to fix.