Smoke Detector Placement?

[SCBO1]

I have a smoke detector 18" above a mini-split heating/cooling wall mount unit, would that be a violation of the 36" horizontal path from the supply register thats on the unit itself, is this unit considered a force air unit requiring the SD to be relocated?

pc1

 

[cda]

probably not a good place

lopoks like it would be more prone to getting dirty and if hit by the heat, more then likely not good for it either

 

[mark handler]

I have a smoke detector 18" above a mini-split heating/cooling wall mount unit, would that be a violation of the 36" horizontal path from the supply register thats on the unit itself, is this unit considered a force air unit requiring the SD to be relocated?pc1

Is air drawn into or out-of the unit?

If yes, relocate

 

[kilitact]

I agree with cda, either way the air blows move/relocate it.