[Shotimes] AC filling question?

[Kevin & Cheryl Airth]

Bruce:
 Things to remember on ALL A/C systems car or home. With the container is
right side up and the valve on top, you pull the gas phase of the
refrigerant. This needs to go in the LOW side of the system. This will
always be the larger diameter line and the input into the compressor. If you
slug liquid into the low side you can damage the compressor. Can't compress
a liquid! You can also turn the container upside down and hook this to the
high side or the small diameter line. This will put liquid directly into the
system right after the compressor. This is fast and many shops fill systems
this way. Be careful because it's very easy to overfill a system. You need
to have the bottle on a scale and weigh how much refrigerant is put in.
 So to answer your question. Tank right side up. Hooked to the service port
on the larger diameter line. If you don't have gauges hooked up, look for
the hard lines/filter dryer starting to sweat. If it's cold out you might
not get any sweating or will be hard to see. This should be close to the
correct amount of refrigerant.
.
.
.


> I know this is the wrong time of year to be asking an AC question, but if
> filling r-134a from a 30lb tank, should one be filling with the engine
> running and the pressure switch jumpered, and with the tank right side up
> (gas) or upside down (liquid) I can't remember what my friend told me and
it
> is too late to call his house.
>
> I need it for tomorrow's drive to TN, as my DEF has not worked in a long
> time and it bothers me :-(
>
> Thanks in advance.
>
> Bruce J Malachuk