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Question DetailsAsked on 11/19/2015

can the ac line sets that were placed for central air/heat be used for a ductless mini split instead?

bought a new home 2 yrs ago with an unfinished bonus room over the garage. 300 ft/2. AC lines are in place for future central air/heat, but I would rather do ductless mini split instead, if possible.

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2 Answers

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Probably, if they are the correct size,which is likely. Your AC contractor will know.

Source: www.bayareacool.com

Answered 3 years ago by BayAreaAC

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As BayAreaAC says - likely yes if thickwall copper tubing or stainless - but some installs for Freon (R-22) units, which is being phased out and no longer available for new installs, are too thinwall for some of the higher pressure replacement refrigerant gases now being used. Fopr instance, R-22 normally tops out at about 150-250 psi operating pressure (ballpark, depending on your ambient tempeature and manufacturer), R-410a (by far the most common gas in new units) tops out in the 300-500 psi range, so thinwall tubing cannot generally handle that kind of pressure.

Answered 3 years ago by LCD




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