Lower Bay Mini Split AC size

[Darkspeed]

Yes that is one of its uses.

SIERRA Compressor
• Robust rotary design ideally suited for mobile & transport applications
• 400-15,000 Btu/h (114-4,400W) capacity range

ALPINE Compressor
• 11,000-34,000 Btu/h (3,200-10,000W) capacity range


http://www.masterflux.com/userimages/Brochure/MX_Catalog.pdf

[Iceni John]

I will not lead anyone down the mini-split road! Just hate noise of roof tops. It really screws my hearing up. I have a vacum pump and recharge kit ($65) that comes with fittings and gauges. I do my own hvac work. I have 3 separate units so if I loose one there is backup. Total 30,000 btu. Bus in shop today 96 F outside I turned 1-9 and 12 on 45 minutes later they we cycling at 72 F inside. Not for the weak at heart ...No comparison in noise factor...It is a busnut thing to do different.  I swore off discussing them in public forum because of mixed results by others.  I like them enough I now own 5. Bus was first now have 2 in house.   

Sorry for the late reply, but I had a thought today when looking at the dimensions of Fujitsu RL2 series 12K 115V minisplit condensers  -  can you mount them canted over at about 45 degrees from vertical, or do they only work when vertical?   The reason I'm asking is because I have an almost-perfect space under the bus for the condenser, but it's less high than the condenser's 22" height.   All the installation specs I've read don't mention anything about needing to be vertical, or is that just automatically assumed?

Thanks, John

[Scott & Heather]

If the compressor is in there, you may have issues with compressor oiling if off level.


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[Homegrowndiesel]

Rubber (or synthetic) Hoses have been used in ac systems for years.

[robertglines1]

Been thinking About rotating compressor 90 degree for yrs.  from others more knowledgeable that I why not/ I just have 1 many projects to do to try.  Also not interested I developing new product .  FWIW have friend that uses a box  fan to aid in condenser air flow.

[Skykingrob]

Guys
With regard to the masterflux and the vintage air, they may not be big enough capacity for you. I previously looked at those but discounted them for driver's air and heat. The reason for me was my prevost has a driver's a/c of 44K BTU and heat of 38K BTU neither of which the masterflux or vintage air could supply. This maybe overkill but that is what prevost engineered when my bus was built in 1991. Would be nice to know if this much capacity is really needed. I know there is a way to figure it but not sure how. Don't know what you need for the 4106 or other buses.

Rob
91 Prevost
Missouri

[Oonrahnjay]

Yes that is one of its uses.

SIERRA Compressor
• Robust rotary design ideally suited for mobile & transport applications
• 400-15,000 Btu/h (114-4,400W) capacity range

ALPINE Compressor
• 11,000-34,000 Btu/h (3,200-10,000W) capacity range


http://www.masterflux.com/userimages/Brochure/MX_Catalog.pdf

     Has anyone priced these components.  I thought that Red Dot looked good for some special purpose units until I looked at the price tag. 

[luvrbus]

Red Dot components are easy to find used, they are in heavy equipment,farm equipment,off road vehicles you name it you will find the Red Dot units

I purchased a complete unit even had the hoses from a farm implement dealer once still in the box for 500 bucks lol I never did install the unit finally sold it for what I paid 

[Darkspeed]

     Has anyone priced these components.  I thought that Red Dot looked good for some special purpose units until I looked at the price tag. 

you can contact Vintage Air http://www.vintageair.com/ they use the Sierra DC Compressors with their Universal AC systems they could give you a complete kit price.

My plan it do this for in dash air conditioning and run it off my battery bank.

[Darkspeed]

The published an article on DC hot rod AC > http://www.vintageair.com/Tech%20Articles/Electric%20Compressors/Electric%20Compressors.pdf

[somewhereinusa]

So, I'm getting ready to mount my condensers, should I mount it solid or use some sort of rubber isolator? They came with some rubber feet that you bolt through, but that wouldn't really isolate it unless I use some sort of rubber under the bolt head too.

[Darkspeed]

So, I'm getting ready to mount my condensers, should I mount it solid or use some sort of rubber isolator? They came with some rubber feet that you bolt through, but that wouldn't really isolate it unless I use some sort of rubber under the bolt head too.

The condenser should always be mounted on isolators if used in a vehicle to isolate the condenser from the vehicle harmonics which can cause fatigue failure in the unit - as told to me by an ac engineer.

He also said the lineset connection to the unit should have a short flexible section to allow the condenser and the line set to move / vibrate independent of each other.

Will it work without these two items .. yes, but he said it will last a lot longer with them.

I have done two ac units this way and both have been in operation for an extended period of time.

The isolators he suggested need to be:
1. Low durometer - soft
2. Captured - so in a hard stop / collision your condenser stays put.

This would be a good place to start on isolators > Extreme-Temperature Bolt-Down Vibration-Damping Mounts on  http://www.mcmaster.com/#standard-vibration-damping-mounts/=y3brr6

[PRZNBUS]

I'm leaning toward two LG Mini Splits. A smaller one for the bedroom and a larger one mounted up front. The question I have is when I remove the OTR AC compressor in the back, would there be enough air movement in the engine compartment for one or would it be too hot and inefficient?

Bruce

[Scott & Heather]

Man, I don't know about you, but when I open the side door engine compartments in our buses, it's stinking hot in there...I can't imagine that would be good for the unit...

[PRZNBUS]

Man, I don't know about you, but when I open the side door engine compartments in our buses, it's stinking hot in there...I can't imagine that would be good for the unit...

Sort of what I was questioning but when the bus is moving there should be sufficient air movement. I'll have to figure out how hot it actually gets in there. I suppose I could partition off an area back there? It's just such a great place with tons of room.

Bruce