Air handler support

In a new construction house, when inspecting the air handler (heat pump system, no gas furnace) in the attic, the air handler could be moved from side to side. I discovered this when I bumped the unit and it move sideways. The air handler was one of two installed (garage and attic) and was on the smaller side.

Question: Is there any requirement to prevent the unit from moving on the platform is is installed on? This was an Amana unit.

I cannot quote requirements but the common sense rule would be to ensure the equipment was stationary to prevent movement of the refrigerant line connection at the A-coil

Thanks, that was exactly what I told the client.