03-15-2023, 07:43 PM
Bedroom A/C stopped working, as it should when I’m in Miami FL. Lol ( 99 #530). I’ve installed a 3/4 ton heat pump, 9K ducted mini split unit to cool the entire coach. I’m still in the testing phase. The hottest it has gotten is around 85 degrees. It stayed around 78 most of the day. The front A/C is still in, but I have ducted it to the mini split also.
The install was a little difficult getting parts. I’m pretty sure the 11 1/2 X 5 inch duct is home made at Newell. I gave up trying to find a 90 to fit on about day 3 and decided to make a supply box out of 2” fiber board. At the end of the day, I wish I would have just done this from the beginning. I installed about 90% of the ducted mini split inside the cold air return BOX. This way, I did not have to duct any of the return air. I just made a 5” block out for part or the return. It still gets air from this side, as it is open to the BOX. The living room air is simple, it is only two 4” flex ducts. I just bought 25’ of 4” insulated flex duct from the Home Depot. I used 7” lag bolts to mount the ducted supply with 3/8 washers and locking nuts. I probably could have gotten away with 4” lag bolts. But I wasn’t sure how far down I was going to have to go. I also reinforced these with 2X4s to make it stronger.
It is whisper quiet! The air comes out ice cold. I do with the fan blew a little harder. It does take a few hours to cool down the coach. If anyone has any questions or suggestions please let me know.
The install was a little difficult getting parts. I’m pretty sure the 11 1/2 X 5 inch duct is home made at Newell. I gave up trying to find a 90 to fit on about day 3 and decided to make a supply box out of 2” fiber board. At the end of the day, I wish I would have just done this from the beginning. I installed about 90% of the ducted mini split inside the cold air return BOX. This way, I did not have to duct any of the return air. I just made a 5” block out for part or the return. It still gets air from this side, as it is open to the BOX. The living room air is simple, it is only two 4” flex ducts. I just bought 25’ of 4” insulated flex duct from the Home Depot. I used 7” lag bolts to mount the ducted supply with 3/8 washers and locking nuts. I probably could have gotten away with 4” lag bolts. But I wasn’t sure how far down I was going to have to go. I also reinforced these with 2X4s to make it stronger.
It is whisper quiet! The air comes out ice cold. I do with the fan blew a little harder. It does take a few hours to cool down the coach. If anyone has any questions or suggestions please let me know.
New Owner of Coach 530 (1999) Formally owned by and Meticulously cared for by Russ.
I Own two RV Parks.
Acacia in Alamo TX
Lone Star in Dilley TX