Installation Position of an Indoor Mini Split Air Conditioner

Installation position for a ductless mini split is important buy not mandatory.  Off course, height is the most important factor when considering the performance of your air conditioner.  Ductless mini split air conditioners should be installed 4-10 inches from the ceiling.  This lets the cool air flow outwards through the risen warm air and descend towards the floor.  I have had people ask if it is alright to install the indoor evaporator air conditioner lower down the wall?  Yes, you can install them anywhere, but the best performance will be obtained with a higher install.  Below are a few other factors to consider when installing your ductless mini split air conditioner.

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  To be installed at the position where the air delivered from the unit can reach every corner of the room

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  To avoid being affected by the outdoor air

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  To avoid too much oil, smoke or steam

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  To avoid where acid solutions are frequently used

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  Not to install on top of musical instruments, TV’s, computers or valuable appliances

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  Not to install near fire alarming devices (the warm air from the unit could erroneously trigger alarms)

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Replacing and Sizing an Air Conditioner for a Sunroom

First Name:  Chuck

Last Initial:  H

Friedrich 12,000 Through The Wall

Problem:  We have a 21′ x 14′ sunroom addition that sits between our basement and the first floor. A few years ago we had a Unico a/c system installed in our first floor. When they did it, they ran 3 outlets through the garage window into the sunroom. The 3 outlets don’t help much in the intense afternoon sun. The room is poorly insulated with big windows. My wife wants to tear it down completely and re-build, but I don’t think we can do that for another 5-7 years. The room also has an older model Freidrich through the wall air conditioner (12,000 BTUs). Of course more insulation would help, but for the next 5-7 years is it worth getting a split a/c system, replacing the Freidrich wall unit with another, more efficient through-the-wall unit, or just leave it alone until we do the room.

Answer:  Chuck you have a bad case scenario for an air conditioner.  A 300 square foot room with lots of windows and poor insulation will need an air conditioner with approximately 18,000 btu.’s.  I would recommend replacing the Freidrich 12,000 with a Unionaire 20,000 btu. through the wall air conditioner.  You will be able to use approximately the same size hole and reduce your utility cost with a 220 volt air conditioner.  A mini split air conditioner, although very efficient, will cost much more to install and purchase.  Here is a link to view the Unionaire specifications:

http://www.clearanceac.com/index.php?l=product_detail&p=16