I found an old thread referencing a 3 foot “window” around openings into the dwelling but this isn’t really the case for this problem. I was inspecting a home built in 1999 and found these problems relating to the location of the dryer vent to the A/C compressor. The back of the compressor was full of lint. The dryer damper was being blocked from opening by the conduit to the disconnect. The compressor was within 1-2 feet of the dryer exhaust. The inside dryer connection to the wall opening was that flexible silver Mylar. I referenced a 20’ rule of thumb in the report with a referral to a HVAC contractor for further evaluation. Who would have though this statement would have caused a boatload of grief!
In the mean time, I found this link that references 10’ but no hard and fast manufacturer recommendations. Anyone have more information that I may be missing?
Which came first the chicken or the egg. I know of know codes that prevents this but the primary common sense rule. I find them that way quite often my self. I just comment that the dryer vent should not discharge on the A/C unit
You don’t really know that. Could the laundry of been moved recently? Maybe they moved the AC unit because it was in the way of a new deck? It is a fire hazard if the damper cannot open and dirty fins are an efficiency problem. I would recommend moving one or the other.
