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Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: robertglines1 on December 20, 2014, 05:39:15 AM

Title: New roof ac /inverter type
Post by: robertglines1 on December 20, 2014, 05:39:15 AM
I think it was Clifford--about a year ago I had the name ;think it started with A  :: Anyway I lost it.  Was exactly what I wanted but could not find USA seller. Was hoping things have changed.       For  ones in dark about what I am referring to it would give the same benefits of the mini-split without the challenges of two separate units. I have bus system set. But looking into quiet plus heating Hvac unit for Andy's Toterhome. It is on borrowed time and noisy like roof tops.   I think it was Monaco using them on their high end Motor-home. Bob
Title: Re: New roof ac /inverter type
Post by: bevans6 on December 20, 2014, 08:39:52 AM
Mini-splits are increasingly common here for retro-fit units in the old homes we have a lot of.  When the upgrade is from a wood stove in the parlor to a mini-split you know you don't have ducts to distribute heat and cool...  When I see them I marvel at how quiet an unobtrusive they are.  Why can't a roof-top unit be as quiet?  Is that what inverter type roof ac might be?

Brian
Title: Re: New roof ac /inverter type
Post by: Ace on December 20, 2014, 10:42:54 AM
I just bought this for the truck conversion. I actually found it for $900 plus shipping

(https://busconversionmagazine.com/forum/proxy.php?request=http%3A%2F%2Fi1203.photobucket.com%2Falbums%2Fbb394%2FGoldbus%2F2014-12%2FD27D4DA1-2E6D-4FE7-8F33-A5396642FB84.png&hash=506603440d78fcb55119876f0f98775e2e348a8c) (http://s1203.photobucket.com/user/Goldbus/media/2014-12/D27D4DA1-2E6D-4FE7-8F33-A5396642FB84.png.html)


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Title: Re: New roof ac /inverter type
Post by: robertglines1 on December 20, 2014, 10:48:39 AM
Brian: same as mini-split except in one unit. Azuli or asuli ; just can remember. Is common use in campers in Europe. avail in 60 hz @120v for us market.
Title: Re: New roof ac /inverter type
Post by: oldmansax on December 20, 2014, 04:10:20 PM
Ace, That unit is a 9 SEER, not very efficient. Minimum  rating for household unit now is 13 SEER and you can buy some at 20+. I know that really doesn't make a lot of difference except if you are concerned about total energy usage, such as staying places that only have 20 amp service or what ever. The higher the SEER, the less electricity it will use to produce that 11,000 BTUs of cooling. They are really nice  units though.

TOM
Title: Re: New roof ac /inverter type
Post by: Ace on December 20, 2014, 06:06:52 PM
Tom I'd be concerned if it were in a house or cottage but using it the truck really doesn't matter since it's either being run off the generator or 50 amp rv park power!


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Title: Re: New roof ac /inverter type
Post by: robertglines1 on December 21, 2014, 08:14:21 AM
ACE:nice compact size. and should be  quiet. I have a 2 1/2 ton and a 5 ton here at house that I don't use any more. Problem here in blaaa ohio valley they quit on the heat side at 30 and below 45 are real inefficient.  AC side are good. With  the inverter technology and 410R  refrigerant work on heat side down to single digit. Not theory but my actual 2 yr experience. The efficiency doesn't seem to drop until below 20 degree F. That unit you have should be easy fit below floor..Good Idea!  Suggestion you prob already know is to keep as much fresh air to it as you can and try not to recycle discharge air from condenser.    Note: To Bob::: keep out of freezing temp as much as possible.  Have less trouble remembering that the older I get.     I have done the ducted HVAC in a bus.. super quiet. Needed a small ceiling fan (20 inch ) from lowes to stop layering of temperatures.  as much as 10deg from top to floor.  Ran on low=just enough to move/mix air up and down.  Very interested in your project ! as you know Andy has a FL120 with a NRC box that he pulls his steam engines with. We could put mini-split on it but prefer to replace noisy on it last leg roof top with  the new technology (when available) in same place.   Bob
Title: Re: New roof ac /inverter type
Post by: TomC on December 21, 2014, 09:24:04 AM
Ace-watch out when buying a "park" model. They are made to be mounted on a concrete pad. Coleman and others make basement A/C's that are reinforced (mainly in better support of the freon lines) to better with stand the vibration of going down the road. Especially since truck conversions don't ride as well as buses.
On my truck conversion, I converted two Penguin 15,000btu roof A/C's to work in the basement. Extremely quiet inside and outside. Good Luck, TomC
Title: Re: New roof ac /inverter type
Post by: robertglines1 on December 21, 2014, 01:09:59 PM
Aislu    is the name. Avail in 60hz for us market. Still trying to find us sales source.  Bob
Title: New roof ac /inverter type
Post by: Ace on December 21, 2014, 01:44:18 PM
The guy whom I've dealt with in the past tells me he has sold a lot of these for rv use. Fwiw!


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Title: Re: New roof ac /inverter type
Post by: luvrbus on December 21, 2014, 03:03:21 PM
Why not the TrueAir residential packaged units are used in several of the major manufactures in their rv's they seem to do fine 
Title: Re: New roof ac /inverter type
Post by: belfert on December 21, 2014, 03:24:50 PM
TrueAir appears to be exclusive to Winnebago Industries.  The thermostats have the Coleman name on them so my guess this is simply the Coleman under floor heat pump.

I bet it is simply this http://rvcomfort.com/rvp/products/offroof/HP_2tonHE.php (http://rvcomfort.com/rvp/products/offroof/HP_2tonHE.php) with a special name for Winnebago.  Coleman used to have a straight A/C version of this for RVs, but long discontinued.  Several folks who have been around here for some time have the A/C only version in their bus.  Ron the Bus Nut used to sell the A/C only version.  Maybe he still has one.
Title: Re: New roof ac /inverter type
Post by: AndyG on December 28, 2014, 05:29:07 AM
Here is a link to the unit that we are looking for.  http://www.aislu.com/Technical_Doc/TECH_PDF/MSD_rvairconditioner.pdf (http://www.aislu.com/Technical_Doc/TECH_PDF/MSD_rvairconditioner.pdf) 
I can find info on the unit but I can't figure out where to buy one.
Title: Re: New roof ac /inverter type
Post by: luvrbus on December 28, 2014, 06:10:51 AM
I have a guy at a RV place checking on where to buy one he said the distributor has been by his place trying to set him up as a dealer

Title: Re: New roof ac /inverter type
Post by: robertglines1 on December 28, 2014, 07:04:29 AM
Thanks: the real 2 selling points to me would be the low decidable (48) inside level and the fact you get heat down into single #F at same capacity as airconditioner from the unit.  As we all know the RV industry is turtle pace to change.    Bob
Title: Re: New roof ac /inverter type
Post by: bevans6 on December 28, 2014, 07:05:18 AM
What an interesting spec sheet.  Uncommon use of the the english language, but all correct and very understandable.  11.8 amps for the 15Kbtu unit at 120 VAC input, and 55 db noise level.  The main use of the inverter tech seems to be driving the motors very efficiently at variable speed and without inrush current on turn-on.  They have heat pump and electric heat otions, and down to 6.75 amps for a 9K btu unit.

Brian
Title: Re: New roof ac /inverter type
Post by: AndyG on December 28, 2014, 11:59:38 AM
My Freightliner has an aging 12K BTU rooftop unit that freezes up sometimes and sounds like a helicopter on the roof.  I really like minisplit systems and am still considering using one on my RV.  My toterhome has a 12' living quarters and there isn't much room on the interior walls for the evaporator and no luggage bays for the condenser.  When I spotted the AISLU unit I thought that it would be perfect for replacing an existing rooftop unit.  A 9000 BTU unit should do the job nicely.  I often use this RV in places where the amperage is very limited so the soft start and low current draw of an inverter compressor will be a big asset.  I don't know what the SEER rating on this unit would be but it has to be better than the old Coleman which is up there now.
Title: Re: New roof ac /inverter type
Post by: OneLapper on December 28, 2014, 07:23:57 PM
Please let us know when you find a dealer.  I'll be in the market this summer.
Title: Re: New roof ac /inverter type
Post by: Iceni John on December 29, 2014, 09:18:01 AM
And if the claimed power consumption numbers are correct, I could even run a 9k or 12k off my solar panels.   Yeah!   Mind you, my whole roof is covered by panels, so maybe I would have to put one under the floor and duct it up.   It's another option instead of a minisplit.   Choices, choices.

John
Title: Re: New roof ac /inverter type
Post by: Ace on January 08, 2015, 02:27:19 PM
Got off somewhat early today and went to R&L trucking to pick up the new Coleman A/C unit and after getting it unboxed, it looks like it will work just fine. Pretty simple instructions and now to find time to get it in the truck! 😜