Air space above exterior compressor unit


Old 02-24-13, 08:22 AM
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Air space above exterior compressor unit

I am replacing second-story and higher panel siding and windows on a gable end wall that is directly over my exterior central A/C unit. I plan to build a temporary frame which will hold a plywood "roof" directly above the unit to protect it from all the crap that will inevitably fall while working above the A/C unit (fan is on top). The A/C will be turned off while we're working but the work will take at least a week and ideally I would like to be able to run the A/C nights and other times I'm not working.

Of course I could make the temporary "roof" removable, but it would be easier and stronger if I can leave it in place when the unit is running.

Is there some crucial distance above the unit that needs to be open for air circulation? In other words, what is the minimum distance above the compressor fan that the temporary "roof" should be?
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Old 02-24-13, 02:01 PM
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I am only going to say that this would be OK because you are saying that it is temporary. I would make the roof at least 1.5' + above the fan... the more room the better.

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