Coleman 48204C866 Mach 15+ A/C Unit

This is a nice unit. I read hundreds of reviews before making my choice to replace a Mach 3 13.5K- BTU unit on my camper, comparing technical specs and even performed servicing the Mach 3 before I decided to make the swap. I got to look under the cover for both and compare components. The inside components between the two units have nearly the exact same design layout, components, blower/fan, etc. but the Mach 15 is a little bit smaller package and a 2 piece shroud. I had trouble sliding the old Mach 13 shroud off for troubleshooting without dragging cover across evaporator fins but Mach 15 2 pc shroud is much easier. But it will flex a little so don't lift unit with it. The unit is easy to unload and lift to the roof, but the two piece shroud is not for lifting and sill crack if not careful. This went on a pop up camper, but If I had to hoist to a higher roof installation I would consider leave it in the box/pallet and unpackage it then. The pallet this unit cam on was only 15 lb wood and wrapped in cardboard but truck carrier delivered in perfect shape.It comes with the gasket installed and crush indicators so you cant screw it up. Follow the installation instructions in the book and save yourself hundreds from a dealer install. If you have the skills to assemble a grill you can swap units out. Follow the book.The inside unit is a perfect match for the 14x14 opening and easy to complete installation, I completed the job in under 2 hours. The duct installation trimming and taping took the longest just to make sure it was tight so no air leaks from unit. Remember the air comes straight down into the roof unit and makes a 90 degree turn to vents, so this vinyl duct will puff up like a balloon and any leaks will recirculate back into the inlet side.I'm not sure this unit is that much quieter than a Mach 13,5 BTU because its probably using the same blower with a more efficient compressor and evaporator but it does run smooth with no rattles and provide plenty of cold air. Is it worth the price difference of $100 for an upgrade? yes probably for us and should never need to worry about keeping cool even in middle of hot summer camping in Florida. If we get 6 years out of it, for $100/year its a reasonable tradeoff.Good luck with your choice. installation is easy. Nice unit.

The air-conditioning unit works fantastically, much better than the old R22 unit I had. Installation was very easy, and the unit has been wonderful during several hot weather cycles. Delta-T is always over 20 degrees! So much for the praise....I was disappointed with the shipping container. The unit was shipped by truck from Tennessee to California, but barely survived the trip. The AC unit was bolted to a flimsy pallet, and during transit the bolts pulled through the soft wood of the pallet. Over the unit, were two plastic straps holding on some cardboard that was placed around the unit and the pallet. During transit, the straps loosened, the cardboard was torn, and the pallet was broken. Somehow, the AC unit itself survived without a scratch, but the packaging looked like it had been through a war.I kept everything from my old AC unit(same manufacturer), and I was glad I did. What is not clear in any of the documentation I could find is that the new AC unit does not come with the controlling circuit board. I recovered the controller board from my old 13.5K BTU unit, installed it on the bolts near the evaporator coil of the new AC unit, and the old controller seems to work fine with this new 15K BTU unit. The new AC unit did come with the roof gasket installed, so that was terrific. I also had to use all the mounting brackets, bolts, plenum baffles, and screws from the old original AC unit.

I can’t even understand this. Placed order for new unit. Box arrived in great shape. Cover of unit was in great shape. When tech went to install, he removed the cover to find a gorillas playground! The compressor looks like someone who assembled it tried to twist tie the lines in. Refrigerant lines were a total mess with kinks and twists.I have started the return process but it will take 2 days to hear back. If the seller processes the return I will update this review.So frustrating! Just want AC.UPDATE - Seller has not communicated. Starting claims process. JUST DON'T DO IT!!!!!!

Purchased a used RV and found that the AC would only drop the input air temperature by 4-5 degrees. Watched many videos and read a lot on how to troubleshoot. The filter was clean, evaporator and condensor were clean, control module electrical functions were good, the compressor and fan were running but the evaporator was barely cool to the touch and it just wasn't cooling like it should. My conclusion was that either it had slowly leaked out refrigerant or the compressor is going out. Since you can't easily/affordably replace the compressor or charge the refrigerant I decided to order a new unit. It arrived quicker than expected via freight delivery and was securely fastened to a pallet. The unit works great after installation and cools the input air down 15-20 degrees. Surprised at how easy it was to replace:1. Remove 4 mounting bolts from inside RV2. Dismount control module in air intake3. Remove freeze sensor from evaporator (white wires from control module to piece stuck in fins on air intake side)4. Disconnect the one square electrical connector that is part of the new unit5. Reverse to installThe hardest part is getting the new unit on top of the RV and the old one off. My son and I were able to muscle it up on top but at least one more person would have really helped. Be careful when moving the units around on top and not drag them on the liner. Unfortunately I cut my liner and had to order repair tape to fix it. When moving use two people if possible to lift it instead of 'scooting' it around. Overall a good experience and would definitely purchase from this seller again!