Installing split system A/C unit, can i use a rubber hose to connect outdoor unit to indoor unit?

iv always read that copper pipe is recommended, but i have seen rubber hosing used on many systems, whats the difference?





thanks

Installing split system A/C unit, can i use a rubber hose to connect outdoor unit to indoor unit?
While in Iraq, we used thousands of these split units for cooling. They actually worked pretty well considering the heat during the summer. You should go with the copper lines between the units. The rubber you saw was probably insulation over the copper piping. It is a good idea to insulate them.





Main thing to remember on these is to make sure the outlet drain on the inside unit is clear or you will have leaks in your house.
Reply:Never ever has rubber hose been used in connecting a compressor to an evaporator coil. That pressure in there is near or above 250 to 300 PSI. You maybe saw in an automobile a steel braided rubber covered hose and suspected that was rubber.





What you need is a "lineset" those are about $30 or so depends on length. Then you "braze" the lineset to the compressor unit and "braze" the lineset to the evaporator coil. Then you pull a vacuum on the lineset and release the freon which is in the compressor and is fully charged.





Brazing is easily done. You need "silfoss" self fluxing rod which you get at welding supply for about $5 a lifetime supply. You need a Map gas and Oxygen torch you can buy at Lowes to heat the copper hot enough.





This silfoss never ever leaks. Anyone can do this. Just heat that slip joint on there and stick the rod to it. It is so simple a baby can do it. Self fluxing No flux required. Amazing stuff.





You need lineset? go to www.usamfg.net and order a new one for about $15 to 20 surplus.
Reply:if it's a diy system don't I had 1 worked for couple of months then packed up help line then advised and advised until I took it back to where I bought it from they didn't even quibble just gave me my money back





if you do go ahead then you must use copper rubber will just split with the pressure these units run at