Copper Heat Pump Line Insulation Tips
Recently I installed a multi-zone LG heat pump at my home. I decided to run the lines inside the walls for a cleaner install once all was complete. The overall process went rather smoothly besides cutting the pre-installed insulation around some of the lines too short while making the connection at the wall-hung units. (See images for exposed copper in need of insulation)
At this point, my problem is getting additional insulation to adhere to the cut ends that are just exposed from the wall and at an extra angle. I have tried a handful of adhesives to try and get a new piece of PE foam pipe insulation to stick however nothing seems to hold. Because of that, I am now thinking about different methods.
My next thought is to use some expansion spray insulation in this area with a mold around the pipes to try and keep things as neat as possible. I need a product that will be safe for the copper while curing and once the system is running during both heating/cooling modes. What product would be best for this type of job?
Any alternate suggestions are welcomed.
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