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09-29-2020, 06:23 AM
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#1
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Member
Join Date: Aug 2020
Posts: 81
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Propane refrigerator when driving through mountains
About to pick up my first RV, and it has a propane/AC refrigerator. We're not full-timing, so as we go out to our site on trips I'd planned on running the fridge off propane while driving, so that we can get it cold by the time we get to where we're going. It seems a bit of overkill to get the generator going to do this, so I'd planned on using propane (I know that I'd have to turn off the propane going through certain tunnels).
However, what if we're going to a mountain camp site, or over a mountain pass, such as the grapevine in CA? The road grade could easily take it outside of level (I believe the specs are 3 degrees one way and 6 degrees the other, though I can't remember which is which right now). Should I turn off the fridge when driving up or down?
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09-29-2020, 06:29 AM
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#2
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Senior Member
Join Date: May 2005
Posts: 685
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You are over-thinking this. Just go and have fun.
__________________
04 Southwind 37C W22
DIY Rear Panhard Rod
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09-29-2020, 07:00 AM
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#3
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Senior Member
Fleetwood Owners Club
Join Date: Jul 2017
Location: Lake forest park, WA
Posts: 264
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I've been up and down many mountains and didn't even give it a thought and all was well when we arrived to our campground. So like exrench said, Go and have fun!
__________________
David Calderon
2007 Discovery 39V pushed by a 2010 Jeep Liberty
Lake Forest park, WA Falcon 2 Tow Bar EEZTire TPMS
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09-29-2020, 07:08 AM
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#4
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Senior Member
Join Date: Jun 2017
Posts: 2,807
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The level requirements only apply when stationary. While moving the jostling movement keeps thing flowing properly in the fridge.
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09-29-2020, 07:09 AM
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#5
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Senior Member
Join Date: Dec 2017
Posts: 1,698
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Running out of level when on propane never seems to hurt anything because your level condition is always changing. Just level, or shut down, when you are going to be parked for over an hour.
__________________
TeamFoxy ~ Traveling North America
2016 Newmar Canyon Star 3710
2017 Chevy Equinox in tow.
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09-29-2020, 07:09 AM
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#6
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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Quote:
Originally Posted by exrench
You are over-thinking this. Just go and have fun.
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50 years of propane type refrigerators and I never found road grades to be a problem. Even grades like this one.
Quote:
"We're not full-timing, so as we go out to our site on trips I'd planned on running the fridge off propane while driving, so that we can get it cold by the time we get to where we're going."
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Are you planning on driving with an empty refrigerator for some reason?
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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09-29-2020, 07:12 AM
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#7
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Senior Member
Join Date: Nov 2018
Location: Rendon, Texas
Posts: 648
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We have been running the refrigerator on propane while traveling for 12 years. Absolutely no problems while traveling the entire continental United States and Canada.
Enjoy your travels.
__________________
Howard & Elaine
2001 Newmar Dutch Star 4095, CAT 330
2014 SRX toad, M&G breaking, Blue OX Avail
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09-29-2020, 07:14 AM
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#8
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Senior Member
Join Date: Apr 2014
Posts: 203
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Depending on the drive time you may want to start that fridge a little earlier before you leave. It takes, in my opinion and experience with mine, at least 5 hours to get mine moderately cool before I even think of loading it before I leave on a trip.
But that's just me. I throw a bag of ice in the freezer and a frozen gallon water jug in the fridge portion to help speed up the process of cooling and then load with previously cooled items...
__________________
2013 Winnebago Sightseer 33C. Stops at all racetracks!
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09-29-2020, 10:57 PM
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#9
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Senior Member
Join Date: Jan 2018
Location: SF Bay Area
Posts: 1,223
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At Southardrv:
If your coach is in motion, leaving the refrigerator on propane will not be any issue. If however, you get stuck is bumper to bumper traffic while on a steep grade,....we turn ours off.
Regarding when to turn the refrigerator on, before a trip, we usually turn ours on about 6 hours before departure. We also transfer cold food from our home refrigerator to the RV cold.
Now,....some coach owners never run their refrigerator, on propane, while in motion due to fire risks.
__________________
Always bring your A game.
1996 Flair 29V, 454 TBI, 4L80E. Your life is your story, don't let someone dictate your story.
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09-30-2020, 09:20 AM
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#10
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Senior Member
Join Date: Apr 2018
Posts: 3,441
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8 minutes is the time norcold allows for out of level. Grades count. Never walked back to see if the refer was on while driving.
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09-30-2020, 09:35 AM
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#11
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Member
Join Date: Aug 2020
Location: Western New York
Posts: 97
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Quote:
Originally Posted by D Gardiner
At Southardrv:
If your coach is in motion...
Now,....some coach owners never run their refrigerator, on propane, while in motion due to fire risks.
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This a concern for me, so I will be switching to running the refrigerator off the inverter when on the road, and switching to propane / gen or shore power when stopped.
That is a tangent, but the non-level operation, as I understand it is an internal corrosion issue, and exists whether running off AC or propane. Obviously, the refrigerator can handle a certain amount of being out of balance. That might be measured by time and degree out of balance.
I also understand that the level issue is a factor when the unit is off, but to a lesser degree. However, looking at the manufacturer's literature for my unit, a Norcold 1200, I only find warnings about operation off level.
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09-30-2020, 10:03 AM
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#12
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Senior Member
Join Date: Nov 2015
Posts: 26,820
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Quote:
Originally Posted by shootist
8 minutes is the time norcold allows for out of level. Grades count. Never walked back to see if the refer was on while driving.
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8 minutes....never have seen any 'time limit' published by either Fridge MFG. Got a reference?
Quote:
Originally Posted by Mongobird
This a concern for me, so I will be switching to running the refrigerator off the inverter when on the road, and switching to propane / gen or shore power when stopped.
Propane is as safe while in motion as it is while stationary. Many safety features incorporated in RV Propane System. Higher chance of fire from other source while in motion...
That is a tangent, but the non-level operation, as I understand it is an internal corrosion issue, and exists whether running off AC or propane. Obviously, the refrigerator can handle a certain amount of being out of balance. That might be measured by time and degree out of balance.
Overheating of coolant is due to lack of flow from off level operation. Sodium chromate turns into crystals and plates out inside the tubing causing a restriction, more lack of flow, more crystals, more etc. Accumulative damage and is permanent
I also understand that the level issue is a factor when the unit is off, but to a lesser degree. However, looking at the manufacturer's literature for my unit, a Norcold 1200, I only find warnings about operation off level.
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Per Norcold:
Off-level operation will effect the flow of the refrigerant through
the cooling system. The maximum off-level operation
limits are:
* 3 degrees from side-to-side.
* 6 degrees from front-to-back.
Exceeding the maximum off-level limits can permanently
damage the cooling unit.
The cooling unit or its performance are not affected
when the vehicle is in motion.
Per Dometic:
If the refrigerator is operated when it is not level and the vehicle is not moving, liquid ammonia will accumulate in
sections of the evaporator tubing.
This will slow the circulation of hydrogen and ammonia gas, or in severe cases, completely block it, resulting in a loss of cooling.
Any time the vehicle is parked for several hours with the
refrigerator operating, the vehicle should be leveled to
prevent this loss of cooling.
The vehicle needs to be leveled only so it is comfortable
to live in (no noticeable sloping of floor or walls).
__________________
I took my Medication today. HAVE YOU?
Dodge 3500 w/Tractor Motor
US NAVY---USS Decatur DDG-31
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09-30-2020, 10:37 AM
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#13
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Senior Member
Join Date: Jun 2012
Location: The Bluegrass State
Posts: 8,889
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Hey Old- Biscuit, you always post with sensible creditable factual answers to posts...... what's the fun in that?
I always appreciate your input.
__________________
Good Luck, Be Safe and Above All, Don't Forget To Have Fun
Pete
Central Kentucky
2006 Fleetwood Discovery 35H, 2014 Honda CR-V, M&G Engineering Braking System
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09-30-2020, 10:47 AM
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#14
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Member
Join Date: Aug 2020
Posts: 36
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I installed in my Dometic a ARP Fridge Defend to monitor cooling unit temperatures for piece of mind.
https://www.arprv.com/products.php
.
__________________
2004 National RV Tropi-Cal T396 Cat C7
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