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Cullen Newsom (Cullennewsom)
Registered Member Username: Cullennewsom
Post Number: 170 Registered: 2-2009 Posted From: 216.230.236.42
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 10:18 am: | |
This question is for those folks with practical experience in refrigeration. What would be the practical problem(s) with the following:
- take an off-the-shelf A/C window unit like can be found for a couple hundred bucks at a home store
- recover the refrigerant
- split the system in two
- relocate the compressor and condenser, etc to a well vented location under the bus (add a fan).
- relocate the blower and evaporator to the inside (add in some nice tinsmithing/fiberglass work)
- reconnect the system parts with added copper tubing and condensate drain
- recharge system compensating for additional volume
- voila! Custom mini-mini-split A/C for only a few thousand dollars and three years' labor!
I really like mini-split systems, but I'm too cheap to spring for the real thing. Plus, it might be fun. Plus, if I did a good job, it would look very nice, and be quiet. And yes, I know that it isn't going to save me a lot of money like the Geico lizard. |
john daniels (Big_john)
Registered Member Username: Big_john
Post Number: 29 Registered: 3-2007 Posted From: 75.109.200.106
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 10:34 am: | |
I have seen an A/C unit that was a window type in the bay. It was ducted up into coach. It was operated by a remote control. He had 1 in front area and one in back. The wireless remote operated both units. I worked well in the Texas badland of Terlingua. One thing , his generator was 220. |
Cullen Newsom (Cullennewsom)
Registered Member Username: Cullennewsom
Post Number: 173 Registered: 2-2009 Posted From: 216.230.236.42
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 11:23 am: | |
quote:...It was ducted up into coach.
Via floor registers? why not? Can't beat that for simplicity. |
john daniels (Big_john)
Registered Member Username: Big_john
Post Number: 30 Registered: 3-2007 Posted From: 75.109.200.106
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 1:05 pm: | |
The ones I saw were in a scoolie. I just checked on one of the scoolie boards, and there are a lot of them doing it. The young man that had shown this to me is a Satalite programmer an travels the US. His name was Shawn, and he was much more into the electronic aspecs than I could absorb. I wish I could find him. He did duct up eye level with additional fans like in computers. As an aside, his interior was a yayct that was being scrapped in San Fran. Really neat. |
Bob Glines (Robertglines1)
Registered Member Username: Robertglines1
Post Number: 34 Registered: 11-2010 Posted From: 75.207.255.134
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 4:21 pm: | |
been doing it for years using 120 volt 14700btu units 2 in the front and a 10,00btu unit in bed room use bays for return air. Makes a quiet/ less expensive. Ac solution. I do use a ceiling fan to bring heat off ceiling to aid in circulation-it is mounted above drivers seat. $45 20inch diameter from Lowes. Bob |
Rob King (Skykingrob)
Registered Member Username: Skykingrob
Post Number: 62 Registered: 10-2006 Posted From: 72.161.28.102
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 5:19 pm: | |
I was considering placing a window unit in the spare tire compartment under the driver of my Prevost to replace the "dash air" that does not currently exist. I quite considering it because several said that the units would not last long because they were not made to take the vibration of a moving vehicle. Was I lead astray and it is still a viable thought? Rob 91 Prevost XL Missouri |
Dal Farnworth (Dallas)
Registered Member Username: Dallas
Post Number: 624 Registered: 7-2004 Posted From: 75.91.199.111
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 5:26 pm: | |
Rob, I've been using a 12K BTu window air in the back of the bus for 6 years. It cost a grand total of $150. My bus is spring ride, but a couple of years ago I put an auxiliary air ride system on the back end. Maybe it will shorten the life of the AC unit, but come on, after 6 years and about 68,000 miles? |
Bob Glines (Robertglines1)
Registered Member Username: Robertglines1
Post Number: 36 Registered: 11-2010 Posted From: 75.207.255.134
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 5:37 pm: | |
Rob I just put the condensor unit for the mini split 12000 btu there in the 98 the compartment is almost 30inches tall under the floor landing. next to the driver. I made a access hatch from above. you could probably lower a window ac thru or just get a minni split Had to relocate heater lines for defroster to side. no big job. bob |
Bob Glines (Robertglines1)
Registered Member Username: Robertglines1
Post Number: 37 Registered: 11-2010 Posted From: 75.207.255.134
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 01, 2011 - 5:41 pm: | |
room to put evaporator on top of box for defroster if you use mini-split and blow out dash. I put above driver in overhead console. Bob |
Don Evans (Doninwa)
Registered Member Username: Doninwa
Post Number: 294 Registered: 1-2007 Posted From: 208.81.157.234
Rating: Votes: 2 (Vote!) | Posted on Saturday, July 02, 2011 - 4:04 pm: | |
I find it interesting that people say window or mini split ACs won't take the motion, yet many say that a 120vac home type refrigerator will work just fine. They have the same basic components. |
Roger Baughman (Roger)
Registered Member Username: Roger
Post Number: 222 Registered: 11-2006 Posted From: 71.136.32.69
Rating: Votes: 1 (Vote!) | Posted on Saturday, July 02, 2011 - 10:00 pm: | |
Hi all, I thought of using a small house window unit in the area next to my engine air cleaner to provide cool air to the engine. I have a MCI-9 40FT I think there is just enough room in there for one. Any thoughts would be appreciated, |
Tom Christman (Tchristman)
Registered Member Username: Tchristman
Post Number: 306 Registered: 1-2006 Posted From: 66.218.33.156
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 15, 2011 - 11:44 am: | |
Buying two-splitting to make one has been done and successfully. Go for it! I'm using 15,000btu Dometic Penguins in the basement. Penquins are the only roof top A/C that uses a squirrel cage blower for the condenser that can be ducted. I'm using the ducted unit. I found out from Nick that the 15,000btu is actually a 13,500btu unit with just a bigger blower-which is perfect for ducting. I'll let you know how it works out. Good Luck, TomC |
R.C.Bishop (Chuckllb)
Registered Member Username: Chuckllb
Post Number: 1557 Registered: 7-2006 Posted From: 97.224.232.78
Rating: N/A Votes: 0 (Vote!) | Posted on Friday, July 15, 2011 - 8:21 pm: | |
Tom...could you elaborate a bit on these roof units(so I understand) in a "basement" configuration? More or less as Cullen described? Also, you are saying then, that the advertised 15M units are ...not as advertised? I note they show both 13,500 and 15,000. Interesting! Thanx RCB (Message edited by chuckllb on July 15, 2011) |