Louvered Closet Doors 37.5 Inches Wide How To Soundproof An AC Closet With Louvered Doors And A Water Disposal Pump?

How to soundproof an AC closet with louvered doors and a water disposal pump? - louvered closet doors 37.5 inches wide

I have an air conditioner in a closet in my house. Since this is an old house, the AC system has a pump to evacuate the air condenses into water to ... The pump is very loud ... But engineers say CA is working well ...
So ... Who knows how to isolate the company as a whole (shutter doors, walls and pump) to minimize the noise?