gtblum Posted August 21, 2008 Report Share Posted August 21, 2008 Do ac units have to be installed on pads? It's been there for eight yrs. Image Insert: 100.52 KB Quote Link to comment Share on other sites More sharing options...
davidlord Posted August 21, 2008 Report Share Posted August 21, 2008 Around here they do. M1403.2 Foundations and supports. Supports and foundations for the outdoor unit of a heat pump shall be raised at least 3 inches (76 mm) above the ground to permit free drainage of defrost water, and shall conform to the manufacturer’s installation instructions. Quote Link to comment Share on other sites More sharing options...
msteger Posted August 23, 2008 Report Share Posted August 23, 2008 I always see compressors either sitting on a pad or wooden platform. I don't recall ever seeing one without one, although I have seen ones that aren't level and need attention. Quote Link to comment Share on other sites More sharing options...
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