Oliver | Luxury Fiberglass Travel Trailers, Campers & RVs › Forums › OLIVER CAMPERS › Ollie Modifications › Compressor Fridge Info Thread, for those of us considering switching
- September 24, 2019 at 4:47 pm #198585
The fridge has a circuit specifically for a fan. The fans turn on and off with the compressor. They start a second or so before the compressor starts and turn off at the same time as the compressor.
1 user thanked author for this post.October 5, 2019 at 7:27 pm #199815
An incremental update. I finished the upper and lower grills so I’d call the installation complete. The fridge has been running continuously on either DC or AC since I received it coming up on a month now. We have been on a long weekend camping/test trip and we’re pleased with it’s performance. It maintains upper teens to low 20’s in the freezer and low to mid 30’s in the fridge regardless of the outside temperature. The compressor seems to run for about 5 minutes and then is off for about 5 minutes if it’s hot (95 or so) outside and is off a bit longer if it’s cool (mid to upper 60’s) outside. So far the 320 watts solar and four T105 batteries have been able to keep up. Testing will continue on upcoming trips.
Attachments:October 7, 2019 at 7:36 am #199899
Great work on the vents. Looks like it came that way from the factory.
Snowball • LE2 256 • 2018 Ford RaptorOctober 7, 2019 at 9:28 am #199926
Thanks! I originally really hoped to find something already made but there just doesn’t seem to be grills that are 2 or 2 1/2 inches wide and 24 3/4 inches long out there.October 7, 2019 at 10:30 am #199971
I know a guy in Virginia that makes these vents up in any size if anybody needs one.
Steve, Tali and the dogs: Reacher, Lucy and Rocky plus our beloved Storm and Maggie (both waiting at the Rainbow Bridge) 2008 Legacy Elite I - Outlaw Oliver, HULL NUMBER: 0026 2014 Legacy Elite II - Outlaw Oliver, HULL NUMBER: 0050 2017 Silverado High Country 2500HD Diesel 4x4October 8, 2019 at 8:14 am #200070
As I get closer to owning an Ollie I’m envisioning how I will use the trailer. I currently own a Norcold Portable Refrigerator having a DanFoss Compressor 12V or 110V adapter. DanFoss compressors are superb in their performance and low power consumption (aH). Having multiple fuel options LP, 12V, and 110V covers all bases when boon-docking especially in high altitude areas and in colder seasonal temps.October 8, 2019 at 10:46 am #200094
We also have a portable, from a prior rig, an ARB ac/dc, that we use for liquids and fruits/vegies (in the upper chamber). It does an excellent job, and is extremely efficient. This really frees up room in the Dometic fridge. Now we have used the Ollie a good deal this year, about 12 weeks worth, and I have rarely been pleased with the Dometic, mainly in hot weather. I maintain a temp sensor to monitor temps, and in 90 degree + weather it struggles if you open the door any at all. It also takes 24 36 hours to get to temp from start up – esp. if you load it with room temp stuff. The ARB is much better – the Danfoss compressors just kick butt.
AND – the Dometic is sketchy on propane – it has shut itself off 5-6 times, I do a visual check every time I look at the thing, and glance at the temp monitor. Never did it while on voltage.
If it ever gets regularly repetitive – I’ll be copying Ken’s install.
Cindy, Russell and "Harley dog" , " Our 4 legged Chessie early warning/protection system".
Home is our little farm near Winchester TN
2018 Oliver Legacy Elite II - 2018 GMC 2500 Duramax
"Die young - As late as possible"October 13, 2019 at 11:49 pm #200688
Compression refrigeration is a very interesting topic and something we will consider for our Oliver in the future (we recently placed our order). However, as the researcher in our team, I came across Eutectic Plates. Has anyone in this forum used them? Thank you for your feedback.
R2WOctober 14, 2019 at 8:30 pm #200772
Mirna, many of us who have (or had) sailboats are familiar with eutectic plates, but they’re usually called cold plate or holding plate systems.
We’ve used holding plate refrigeration on our boat for 40 years, on the 2nd set now.
On the boat, they’re like big blocks of metal, filled with coils of solution. The plates are attached to the side of our heavily insulated icebox bins. A compressor runs off the engine, cooling the solution in the plates when the engine runs. The solution absorbs heat during the day, keeping food at a fairly consistent safe temp if we run the engine an hour or two a day. With good insulation in the box, it’s very efficient.
There are newer systems out that can chill the plates with a danfoss compressor when we don’t want to run the engine. Our newer plates can use both types of compressor.
Recommendations we’ve received are to cool the box initially with the big engine driven compressor. Use the 24v danfoss to maintain, and then maintain the batteries with solar.
The 12v danfoss compressor Isotherm that Overland bought has the option of adding a small holding plate, (ASU). I don’t remember if he opted for it, or not. I kind of think he did.
Holding plate technology is proven, efficient, and highly dependent on great insulation. It’s also kind of bulky, heavy, and can be tough to get cold enough when air cooled in hot weather. Many boats use keel cooling ( water cooled) systems to transfer waste heat, like frigoboat.
That said, if you plug in every night to cool the plates, like some refrigerated trucks, it could be a great solution.
I don’t know of any holding plate systems designed for rvs, other than the assistance of the isotherm asu. Doesn’t mean they don’t exist…I just haven’t seen any.
That said,along those lines, I keep a freezer pack or two in our dc fridge. If I have room, I freeze it during the day when I have good solar production. If not, just the cold pack and thermal mass of the beer probably helps keep the fridge cooler…😏
2008 Ram 1500 4 × 4
2008 Oliver Elite, Hull #12
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