I'm installing some insulation in a wall. There is a low and high
pressure copper tubing for the A/C. Can I insulate over this tubing?
Also, later I might need to move this tubing. I will probably have to
cut the tubing, install the new tubing and solder in the new section.
What is the best way to do this?
Sure insulate away. The big pipe should have insulation over it anyway.
Normally a black closed foam insulation.
You do not EVEN want to consider cutting these pipes, unless you are EPA
certified and have
a reclaiming machine.
a vacuum pump
VERY familar with silver soldering
Please call a pro for this kind of work.
If it leaks you will be tearing out the wall after you finished everything.
Step one is to be licensed to handle the refrigerant.
Step two, evacuate the system and reclaim the refrigerant. It cannot be
Then you cut ad replace the tubing. Refrigeration systems must be kept very
clean. The oxidation from soldering the lines can cause a failure down the
road. It is common practice to fill the tubing with nitrogen to avoid that.
Or a new lineset with compression fitting is used.
Then it has to be leak tested
Next you draw a vacuum on the system to remove any air and moisture
Hundreds of dollars later you are ready to re-charge the system.
And unless you have a ductless split like a Mitsubishi or Sanyo unit, there
is no reason to insulate the smaller line, and if you do, do NOT wrap it in
the same Rubatex that you used on teh suction line....
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