Why is it said not to use copper water tubing?

[brucenecho]

If I use carbon dioxide in the line, what would be the problem?

[NormChris]

If you are a DIYer and you have to start out asking why you can't just use water copper as a refrigerant line then you are in for many more goofs if you procede to attempt to install your own system.

[allan38]

My assumption: "Copper water tubing is not made to hold the pressures seen in AC work."

Fact: Plumbers copper tubing is measured using the inside diameter (ID) and not the outside diameter (OD) that ACR tubing uses.
ACR work uses dry nitrogen to pressurize the system during pressure testing to try to avoid introducing moisture into the system. The system is then vacuumed down to remove any noncondensables and water vapor.

Fact: The materials used in ACR work are designed around certain chemical compatibilities and properties. We do the work safely by using the right materials where needed.

Opinion: Go mucking around with it using the wrong stuff and you're setting the scene for a world of hurt. CO2 is a no-go for pressure testing in ACR work.

[RoBoTeq]

Refrigeration copper is manufactured cleaner and is dehydrated with sealed ends to keep it clean. There is no way to properly clean out copper that is manufactured for water usage.

[tinknocker service tech]

why not just use a garden hose it is even cheaper

[ct2]

Tin: you know better than to use a garden hose for refer lines

you save the garden hose for the gas connection

[beenthere]

I wouldn't put carbon dioxide in the lines either.

But thats just me.

[operator]

Originally posted by ct2
Tin: you know better than to use a garden hose for refer lines

you save the garden hose for the gas connection

Thats absolutely rediculous ct2,


you know it can be used for the suction side

[thunderglass]

I've used PVC pipe for years, just be sure to use that blue cleaner on the pipe first then apply cement.

[ralphtheplumber]

Trac-pipe is a lot easier to bend.

[1972torino]

pvc? trac-pipe? you guys work too damn hard! i use 1/2 inch clear vinyl tubing and barb fittings for my refer. lines! homeowners love to see the change of state from liquid to gas!

[beenthere]

I came homew super depressed.

Reading all these easier ways has really lifted my spirit.




Thanks.

[tinknocker service tech]

i like to use carbon monoxcide also to clean and presure test to. i cannetect a tee in the hose and run another hose to the tail pipe of my truck. works like a charm and i save a lot of time no evactuation need and no nito either
co displaces air real well