NEKPOKKA 24V DC air conditioner，roof air conditioner are applicable to trucks, RVs, buses, excavators, campers, agricultural vehicles, etc. 24V air conditioner cold/hot function (24V)

You need some fairly advanced mechanical skill, tools, and/or help to get this installed and fully operational. It's very similar to the shape and size of a conventional rooftop air conditioner on an RV. I installed mine on the truck bed cap on my f250 so that we could camp in the bed of the truck during hot summer months.There was some minor damage, and some of it looked like it was caused prior to shipping. For example the metal frame under the outside cover was bent, but the plastic outside cover was completely intact with only minor damage to an area that didn't align with the metal frame damage. None of the damage affected the function, and almost none of the damage is visible without removing the outside cover.The install required a hole that is a minimum of 9.5 x 12.5, so that means it should fit easily in a typical RV vent or air conditioning hole.The unit requires you to fill it with coolant. You should put a vacuum on the system to remove air and moisture before filling it. That means you need specialized tools including a gauge manifold and a vacuum pump. You can buy these for about $120 on amazon and learn how to use them via online videos. You need to know the correct low side and high side pressures to know when the system is full of r134a.This is where the problem was. The unit came with NO INSTRUCTIONS. Input a question on this product page, and got no response. Only when I began a return request did the seller respond. They did send me the instruction manual which was very helpful. That instruction manual should be posted digitally on the product page.Once I had all the correct info I was able to complete installation and it operates correctly. I need to figure out the location of the intake air sensor and relocate it, because it's reading too low (like it's reading the output air temp. Once I get the little bugs worked out, I can do a full test on long-term function. For now, the air coming out of the AC is 56° and the outside temperatures are currently over 90*, so that's pretty impressive.Be aware that all settings and readings are in Celsius, so if you're used to Fahrenheit, you'll need to make yourself a little cheat sheet to set the right temperature and truck the current indoor temperature.