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Topic: Help - Down AC in Desin Fl. (Read 1806 times) previous topic - next topic

Re: Help - Down AC in Desin Fl.

Reply #20 –
Have used mini-splits at the house to save on electric bill,can't see modifying a coach to make one fit,at some point in time a
manufactuer will make one,if yours are working,just wait,if yours are not working look at the Atwoods.If you can afford the coach
and afford to travel why worry how to make a higher SEER work,just my opinion.

Re: Help - Down AC in Desin Fl.

Reply #22 –
I like the low sound level 
  If I'm going to a new unit , I like a long term solution. 
  I have been making space  for something cool in the pas footwell. 

Re: Help - Down AC in Desin Fl.

Reply #23 –
Your hearing!

Indoor units run from 19 dB(A) at low speeds to 49 dB(A) at high speeds. Considering that a quiet library has a noise level of 40 dB(A) and the average home's noise level is 50 dB(A), the ductless mini split indoor unit is generally quieter than its environment.

Decibel Levels of Common Sounds
20-30 dB   Whisper   
50 dB   Refrigerator   Jet Flyover at 1,000 ft.
60 dB   Normal Conversation   Snowmobile
70 dB   Vacuum Cleaner   Chainsaw

Reasons to consider mini splits.
1. Your hearing.
2. Efficiency
3. Space
4. Cost.
5. Heat pump capable.

Current Rv Ac units run 70 db on average.!  Some will claim 55 - 66 db. But in use db levels are 70db.

Think about having a chain saw running 24/7 in your Rv. 

Re: Help - Down AC in Desin Fl.

Reply #24 –
Quote from: Texhub –
Your hearing!

Indoor units run from 19 dB(A) at low speeds to 49 dB(A) at high speeds. Considering that a quiet library has a noise level of 40 dB(A) and the average home's noise level is 50 dB(A), the ductless mini split indoor unit is generally quieter than its environment.

Decibel Levels of Common Sounds
20-30 dB   Whisper   
50 dB   Refrigerator   Jet Flyover at 1,000 ft.
60 dB   Normal Conversation   Snowmobile
70 dB   Vacuum Cleaner   Chainsaw

Reasons to consider mini splits.
1. Your hearing.
2. Efficiency
3. Space
4. Cost.
5. Heat pump capable.

Current Rv Ac units run 70 db on average.!  Some will claim 55 - 66 db. But in use db levels are 70db.

Think about having a chain saw running 24/7 in your Rv. 

Where are you going to put the compressor/condenser unit?

Re: Help - Down AC in Desin Fl.

Reply #25 –
Quote from: jcus –
Where are you going to put the compressor/condenser unit?

Good point.  Probably more opportunities in this regard in a GV though removing the useless dash air condenser, (in a flat nose coach) you could probably shoehorn one in the port side engine compartment.  These condensers are large and demanding regarding airflow, that's part of the high SEER rating.  They crank out some low db and massive cold air seemingly batting way above their ratings. 

Re: Help - Down AC in Desin Fl.

Reply #26 –
Quote from: Chuck Pearson –
Good point.  Probably more opportunities in this regard in a GV though removing the useless dash air condenser, (in a flat nose coach) you could probably shoehorn one in the port side engine compartment.  These condensers are large and demanding regarding airflow, that's part of the high SEER rating.  They crank out some low db and massive cold air seemingly batting way above their ratings. 

Thought about putting one in another coach, [non-gv] would have needed to put louvers on bay door and cut hole in bottom of bay to allow air flow, and would have wasted at least half a bay. Plus the biggest 110 models are 12000 btu's, meaning two units. Just have to put up with noisy overhead units till they make remote condensers you can put in port side engine compartment,  and compressors in one of the bays.
Believe one member put in modified window units, but can not remember how he vented the condensers.

Re: Help - Down AC in Desin Fl.

Reply #27 –
Venting of the condenser is paramount towards performance and efficiency, got a church with ultra high efficiency rooftop units hidden down below the parapets at the main front entry. Energy efficient upblast condenser fans don't have enough velocity to expel the air upwards so they keep tripping out on high head pressure, due to recirculation of hot air, and efficiency is much worse than a standard unit.

Re: Help - Down AC in Desin Fl.

Reply #30 –
The GV has a lot of room in the nose.  I removed the old condenser,leaving a large area for the compressor .  For the mini split, The short run to the pass foot well is also optimal IMHO. The last 2 feet my DW cant reach anyway.  Both units can drain as is .  For about 600$.
 The smallest may even run from an inverter ??  My fridge runs on a Chinese  PSW 1500 watt unit. trouble free so far.  8months,   

  I could also fit a window unit for a couple hundred, but still the noise... the noise...  I cant hear the voices in my head.

  The OE roof units sit in a puddle of (fishtank) water.  My thoughts are to move my newer front unit to the rear , while building a 1/2 in fiberglass riser and trough so better control the drainage.  Both of my units are sitting a little low  and water does not leave.  Poor design and adding a liitle hill for them to sit on makes sense to me .  I reparked the bus today leaving the nose 2 in low , hoping to drain the roof better. 

Thinking more.. fitting a window unit  at the bumper and extending the ducts  to the foot well makes the most sense per dollar.  For sound VS cooling.

Re: Help - Down AC in Desin Fl.

Reply #31 –
We should wonder why have Rv owners accepted the units that are on the market.  You can scan the fourms of all makes. Conversation about noise, quality are abundant. Our money is our power to cause change. To run off other forms of power. Be at least 40db in use. Should be starting specifications of new rv ac systems. I am learning, I hope my current systems operate for a few years. Replacement will be with some form of mini split arrangement.  Keep thinking, exchanging ideas. 

Re: Help - Down AC in Desin Fl.

Reply #32 –
Quote from: Protech Racing –
The OE roof units sit in a puddle of (fishtank) water.
This is due to one of the few disadvantages of owning older GV models:  the flat roof.  Foretravel resolved that problem when it went to a crowned roof design on the Unicoach.

I like your idea of putting the A/C units on a "riser".  I'm surprised some enterprising entrepreneur does not market a kit for this purpose.

Re: Help - Down AC in Desin Fl.

Reply #33 –
Quote from: Chuck & Jeannie –
This is due to one of the few disadvantages of owning older GV models:  the flat roof.  Foretravel resolved that problem when it went to a crowned roof design on the Unicoach.
Chuck,
Not sure when the GV changed to a curved roof but our 95 has a curved roof and interior ceiling.............

Re: Help - Down AC in Desin Fl.

Reply #34 –
Justin & Cathy,

Yes - this is why your '95 GV is so admired as the ultimate evolution of the model.  It incorporated the crowned roof and flat vertical rear cap of the upcoming Unicoach models, while retaining the classic nose of the GV (with a greatly improved access hatch).  PLUS - a RETARDER!

You definitely have a Keeper!

Re: Help - Down AC in Desin Fl.

Reply #35 –
Quote from: Chuck & Jeannie –
Justin,

Yes - this is why your '95 GV is so admired as the ultimate evolution of the model.  It included the crowned roof and flat rear cap of the upcoming Unicoach models, while retaining the classic nose of the GV (with greatly improved access hatch).

You have a Keeper!

I do like the feature of the front AC being centered in the coach verses offset to the passenger side. It's unfortunate for us GV enthusiast that FT stopped the GV production after a handful of 96 models................... :(

Re: Help - Down AC in Desin Fl.

Reply #36 –
The fix for flat roof is simple, build a 14"x14" frame of 3/4x2in Oak, install between the Alum roof structure and the Fiberglass skin, did ours about 5 years ago gets rid of the duck pond, no more leaks,

Re: Help - Down AC in Desin Fl.

Reply #37 –
Quote from: NancyS –
The fix for flat roof is simple, build a 14"x14" frame of 3/4x2in Oak, install between the Alum roof structure and the Fiberglass skin.
Interesting remedy!  I don't suppose you took photos of the mod, or better yet, posted a report on the Forum.

Could you give more details?  How exactly did you fit the wood frame in place?  Tell us more!

Re: Help - Down AC in Desin Fl.

Reply #38 –
Dometic has an inverter ac unit, Harrier.  Available in Australia in 3.1Kw or 10,500 btu.  But it is 230Vac and probably different Hz.  So hopefully if it stands up to conditions there they might sell it here.  No start-up high amps, and quieter according to their webpages.
Dometic Harrier Inverter - Roof air conditioner

Re: Help - Down AC in Desin Fl.

Reply #39 –
My point exactly,why try and reinvent the wheel,by the time you do that inverter unit will be here,the inverter part is what makes the mini-split extra efficiant.