Alfa basement air service

Make and model would help. Most are already incased and just cutting a hole will not let you do a good job cleaning. call a friend who use to own one and he said to you Good Luck. He stated his comes out the bottom of the RV. It was made by coleman who no longer makes them. It has two compressors. As stated its a case inside a case. here is a picture maybe of what you have.


https://www.pplmotorhomes.com/parts/rv-appliances/air-conditioner/air-conditioners-coleman-dometic/coleman-mach-2-ton-plus-basement-ac-he-w-heat-pump_69859