3 way fridge

Submitted: Thursday, Apr 07, 2011 at 20:53

Member - Brenton W (SA)

Hello all

As new owners of an ultimate camper with a 3 way fridge and its problem keeping food cool while traveling, i was thinking of upgrading to a compressor fridge, but i like the idea of the quiet 3 way fridge and running on gas out bush, but was wondering how it would perform if i ran it on 240 volt through an inverter, i have a 130 solar panel and a 1 kva gen set with a 25 amp ctek charger would this combination keep the charge up to the battery, or would the draw from the fridge on 240 be too great.

Any thoughts?
ThreadID: 85499 Views:7183
Replies:13 FollowUps:35
This Thread has been Archived
Back Expand Un-Read 0 Moderator

Reply By: Battery Value Pty Ltd - Thursday, Apr 07, 2011 at 21:20

Thursday, Apr 07, 2011 at 21:20
Brenton,

these 3 way fridges are known power hogs, 12~15A continuously on 12V for some of them.
Overnight with no sun and no generator, they can drain a 100 or even a 120Ah battery.
If you go 240VAC with an inverter, battery gets drained 10~15% faster still due to conversion losses.
Say you've got 2x100Ah deep cycle AGM batteries wired in parallel, you could sustain this type of nightly load, kind of.

The fridge may gobble up about 3.6kWhr/day, the solar panel only gives you around 600Whr/day, so your charger will have to come up with 3kWhr/day.
Divide this by 12 and the charger needs to supply 250Ah. This means you have to run your gennie 10~12 hrs/day.
Gas seems to be the only feasible way I guess.

cheers, Peter

AnswerID: 450618

Follow Up By: Member - Brenton W (SA) - Thursday, Apr 07, 2011 at 22:07

Thursday, Apr 07, 2011 at 22:07
Thanks for the info, i didnt think they would draw that much power, i suppose they are actually a very inefficient way of cooling, but serve the purpose when electricity is not available.we will see how it goes before we change it.
0
FollowupID: 723105

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 20:28

Sunday, Apr 10, 2011 at 20:28
Hi Brenton
In answer to your question.
The big problem with any fridge in a camper trailer ,while travelling is the heat build up under the covers due to lack of fresh air circulation
While a compressor fridge will be more tolerant ,it will also suffer severely in hot weather.,
It too needs adequate air circulation.
The heat under the covers can get very high & could reach a point where the electronics of a compressor fridge could be permanently damaged.
I would not be very keen to run a 3way under covers on any power source
There really is no safe, simple solution with that set up when travelling.
The best you can do is get the fridge as cold as possible prior to travelling,well filled so you have reserve cold stored,even frozen bottles of water if you have the space
As well insulated as possible from the heat
When stationary @ camp, then the other points for best performance of 3ways become very relevant
Your problems are not the same as in vans etc & are not easily solved.

On forums too many people make all embracing statements which may not cover the actual OP's situation
THAST IS WHY IT IS ESSENTIAL YOU
"""SORT THE WHEAT FROM THE CHAFF """

Peter
0
FollowupID: 723431

Follow Up By: oldtrack123 - Monday, Apr 11, 2011 at 08:25

Monday, Apr 11, 2011 at 08:25
Hi Brenton
As it seems you do not intend to rush in a pull your 3way out may I suggest
you do a few things that should improve it's operation.

First & very important CHECK THE VOLTAGE @12v the fridge terminals WITH THE FRIDGE OPERATING & engine @ fast idle
IF the voltage is not @ least 12v you have undersized cables [VERY COMMON"]
2ndconsider fitting a couple of small 12v fans [computer fans] or bigger depending on space,behind the fridge to improve cooling of the condenser
If possible fit baffles from side of trailer to the edge of the condenser fins to force ALL cooling air through the condenser fins
The fans can be fed from the 12v input terminals via a simple switch or
a thermostat [Jaycar part #ST3831]fixed to top of condensor fins about midway from boiler
You will be suprised ,I am sure, with the improvement in ALL modes of operation

Peter
0
FollowupID: 723450

Reply By: Member - Rob D (NSW) - Thursday, Apr 07, 2011 at 21:29

Thursday, Apr 07, 2011 at 21:29
Hi Brenton,

The 3 way fridge draws about 175W on 240V. By the time you go through an inverter with an efficiency of 80% this would result in around a 20A current draw on the 12V system.

I too have an Ultimate and had the same problems as you are having. I installed an Engel SR90F compressor fridge and 2 x 100AH AGM batteries and a 40A Xantrex Charger. I am very happy with the set up. The SR90F draws a maximum of 2.5A and is very quiet. I do not have a solar panel but have a 1kva Honda generator.

I have seen figures of 5.6A for the equivalent Waeco as well as read of reliability problems.

Your 130W solar panel should keep the Engel going but definitely not the 3 way on 240V.
If you relax at a faster pace you can get more relaxation in for a given time.
Regards Rob
Lifetime Member:My Profile  My Blog  Send Message
AnswerID: 450620

Follow Up By: Member - Brenton W (SA) - Thursday, Apr 07, 2011 at 21:53

Thursday, Apr 07, 2011 at 21:53
Hi Rob

Thanks for your input, much appreciated, as i already have the solar panel and a good charger and gen set i may go down the path of an engel, if the dometic gives us trouble but i will see how it goes, we are heading into victoria with the camper end of next week, will put the small waeco in the back of the prado for the beers.
0
FollowupID: 723102

Follow Up By: paulnsw - Friday, Apr 08, 2011 at 21:38

Friday, Apr 08, 2011 at 21:38
"I have seen figures of 5.6A for the equivalent Waeco as well as read of reliability problems." more uninformed diatribe posted on a public forum.

The Engel upright have never been reliable and uses heaps of power compared to the Waeco CR fridge. The Engel has terrible insulation with an undersized compressor and a fan that packs up. The Waeco is Tropical rated, has heaps of insulation, double locking door and is a substantially superior product in every way to the Engel.
0
FollowupID: 723202

Follow Up By: mike39 - Saturday, Apr 09, 2011 at 08:13

Saturday, Apr 09, 2011 at 08:13
I destroyed the 90l 3way in my van (ran it on gas whilst on a slope) and like Rob replaced it with the Engel sr90 unit.
It neatly fitted exactly wher the 3way had been.

This was 2 yrs. ago, and the improvement in refrigeration over the 3way is many fold.
Constant 4* cabinet temp without moisture, rapid temp. pulldown on replaced contents (like beer!!!).

We dont have solar, and our fridge setup is the new Engel in the van and a 60l Trailblaza (on freeze) in the back of the truck.
A honda eu10 powering a 30a. 3 stage charger run 1.5hrs. morning, 2.5-3.5hrs. evening (when long term camped) maintains the 3 batteries.

I dont know where Paul derives his information about the Engel upright, but he is well off the mark.
It HAS a 2yr. warranty. It IS Tropical rated, which means it has insulation to meet that criteria. It DOES have a max. current draw of 2.5a.

According to many reports and observations, its pretty difficult to incorporate Waeco and reliability in the one sentence.
mike
0
FollowupID: 723225

Follow Up By: paulnsw - Saturday, Apr 09, 2011 at 10:40

Saturday, Apr 09, 2011 at 10:40
The Engel fridge is NOT Tropical rated. The Engel is SN rated. Check out the factory website.
2.5Ah means nothing, it is the total Ah or amps used in 24 hours.
The Danfoss compressor is substantially more reliable than the Engel compressor. Waeco have the lions share of the portable refrigeration market and probably 70%+ of the upright refrigeration market. You will find very few Engel upright fridges fitted because of their known high power consumption, poor insulation and fan failures. If the fan fails and you don't realise it the compressor goes cya.
0
FollowupID: 723237

Follow Up By: mike39 - Saturday, Apr 09, 2011 at 17:40

Saturday, Apr 09, 2011 at 17:40
Paul.
For your information, the fan you refer to is thermostat controlled. Something I discovered when I noticed it did not run when the compressor started, but cut in later.
Reading the installation sheet cleared that up.
Where is your anecdotal evidence to support these alleged failures?

If you can tell me that the wording on the small label inside the cabinet which reads (amongst several other things) "climate class T" means other than it is Tropical rated I humbly apologise to you.
Otherwise....
mike
0
FollowupID: 723293

Follow Up By: paulnsw - Saturday, Apr 09, 2011 at 20:50

Saturday, Apr 09, 2011 at 20:50
The T is for the ELECTRICS ONLY not the fridge. Thetford is the same as they try and pass off the T for Tropical for cabinet temperature. In Engel and Thetford the T is for tropicalised electrics ONLY nothing to do with the refrigeration or cabinet insulation.
Everybody knows the fan is thermostatically controlled. If you were associated with the repair business you would know well about the Engel failures. Why do you think they are not popular in use.
0
FollowupID: 723317

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 14:29

Sunday, Apr 10, 2011 at 14:29
Hi Paul
A very strange statement when you look @ thenumber who reprt problems on forums relative to Engel & Waeco especially since Engels have been around for over 40years & many are still going strong.
I have one that is 44years old, spent it's whole life in 4wds never a thing done to it
Another about 30years old ,ditto no problems.
& know off others similar .
Perhaps you should produce some evidence to back your remarks

Peter
0
FollowupID: 723388

Follow Up By: mike39 - Sunday, Apr 10, 2011 at 15:50

Sunday, Apr 10, 2011 at 15:50
Paulnsw.
I was going to respond, but honestly after your last statement "climate class T" refers to electricals only, why would a bloke bother.

You obviously carry a load of embitterdness toward Engel (and Thetford)products.
I also have a 35yr+ old one which has never failed.

As myself and another asked, why not produce some evidence of your allegations.
I must remind myself to steer away from your comments in future.
0
FollowupID: 723400

Follow Up By: paulnsw - Sunday, Apr 10, 2011 at 19:44

Sunday, Apr 10, 2011 at 19:44
Peter referring to the Engel cabinet fridges not the chest fridges.

Mike why would you bother, ignorance to the truth is bliss and if you don't want to hear the facts then so be it. I realise your mind is made up so why bore yourself with the facts. I told you what the T stands for and if you dont believe that well so be it. Those that cannot see the forest for the trees cannot be helped. I have no axe to grind with anybody. Dont want what the T sticker stands for people to believe it has to do with cabinet and insulation and what the T actually means is TROPICALISED ELECTRICS. Contact Engel and Thetford and ask them and if they tell you differently they are telling big commercial furpheys.
0
FollowupID: 723421

Follow Up By: Member - Rob D (NSW) - Monday, Apr 11, 2011 at 15:10

Monday, Apr 11, 2011 at 15:10
I have been away for a few days and did not realise that I would start world war 3 by my comments.

My "uninformed diatribe" was the result of a couple of days searching the Internet. I was totally unbiassed when I stated as I already own a Waeco and an Engel.

In my search I came across a number of instances of people unhappy with the high power consumption of the Waeco and also those who had complete failures of the Waeco, one on a Canning Stock Route trip.

I forgot to mention the RF interference problem with the Waeco which does not happen with the Engel. Do a search on "Waeco RF interference" and you will find it for yourself.
If you relax at a faster pace you can get more relaxation in for a given time.
Regards Rob
Lifetime Member:My Profile  My Blog  Send Message
0
FollowupID: 723473

Reply By: Member - Boobook - Thursday, Apr 07, 2011 at 21:41

Thursday, Apr 07, 2011 at 21:41
This might be a silly question, but what is wrong with running it on gas?
200 with 2012 Tvan Canning
VKS Mobile 1523
AnswerID: 450621

Follow Up By: Member - Brenton W (SA) - Thursday, Apr 07, 2011 at 21:48

Thursday, Apr 07, 2011 at 21:48
I hope i can run it on gas as the idea of it appeals to me put have heard of so many hassles with them on hot days iam not sure they are worth the trouble.
0
FollowupID: 723101

Follow Up By: Member - Roger B (VIC) - Thursday, Apr 07, 2011 at 22:09

Thursday, Apr 07, 2011 at 22:09
It'll run better on gas than the other two methods. Only while you're stationery of course. Cheers.

Roger B.....
0
FollowupID: 723106

Follow Up By: Dust-Devil - Thursday, Apr 07, 2011 at 22:20

Thursday, Apr 07, 2011 at 22:20
Brenton

Listen to the guys above - GAS - if you have it.

Extremely efficient compared to AC and 12V, which you only use to hold it cold whilst travelling.

When station level the vehicle being towed and switch on the gas.

I use 9kg bottles on the van and run the water heater, fridge and stove on gas for weeks, and it all works soooooooooooo good.

DD
0
FollowupID: 723108

Follow Up By: Member - Boobook - Friday, Apr 08, 2011 at 08:10

Friday, Apr 08, 2011 at 08:10
Make sure that the fridge is surrounded by home insulation, and you have a fan and you will have no problems. I make ice with mine on gas.
200 with 2012 Tvan Canning
VKS Mobile 1523
0
FollowupID: 723118

Reply By: Member Dick (Int) - Thursday, Apr 07, 2011 at 22:38

Thursday, Apr 07, 2011 at 22:38
Hi Brenton

I have an Ultimate (#519)

From what I read, the 3 way fridge works well in the cool to medium outside temps but is severly lacking in hot temps mostly found in the north. There are a lot of people running 3 way fridges successfully and they swear by them. There are also many ultimate owners who have removed them so that tells you something

After doing a lot of research particularly in the Ultimate Owners Forum I decided to remove the 3 way fridge and replace it with a compressor driven Engel. This was done for me by Ultimate and at the same time they installed dual battery's and a larger Ctek charger.

I am very pleased with the result.

Cheers
Dick







Lifetime Member:My Profile  Send Message
AnswerID: 450627

Follow Up By: oldtrack123 - Friday, Apr 08, 2011 at 12:31

Friday, Apr 08, 2011 at 12:31
Hi
Dick said"There are also many ultimate owners who have removed them so that tells you SOMETHING ""

Yes It DOES , that they were not installed correctly!!
As with most which do not perform!!

Compressor fridges are good

IF you have plenty of battery amp hrs
" "' ample solar panels
If you do not mind loosing every thing in the fridge if you run out of 12v power.
You are happy to park in the sun, or juggle portable panels around & finding somewhere to safely store them when travelling & risk theft when away from camp
THINK very carefully on your style of camping , & weigh up ALL the pros & cons BEFORE YOU PULL out the 3way
$50 dollars worth of extra insulation , better venting & a couple of small 12v fans can fix nearly ALL the worst installations .

Peter
0
FollowupID: 723142

Follow Up By: Member - Boobook - Saturday, Apr 09, 2011 at 19:20

Saturday, Apr 09, 2011 at 19:20
Egg Zackery Peter. Mine was lousy till I insulated it and beefed up the 12V wiring. Now it is great.
200 with 2012 Tvan Canning
VKS Mobile 1523
0
FollowupID: 723304

Reply By: Member - Heather G (NSW) - Friday, Apr 08, 2011 at 06:22

Friday, Apr 08, 2011 at 06:22
Hi Brenton,

We have a 3way 184 litre two door fridge/freezer in our van and although it is a lot larger than the one in your ultimate, we find it runs very well on gas and keeps below the safe marker on our fridge thermometer...in fact it shows well below 0 degrees inside the fridge. We have never had a problem with keeping the temp down even when up Cooktown way in high humidity.

It also runs well on 12v but only while we are in transit and because we had heavy wiring put through which runs straight from the Navara to it. They are power guzzlers when run on 12v from batteries and solar though, compared to compressor fridges.

I would give yours a try on gas before you start changing anything. We actually had a 2 door Waeco in the van when we bought it new and had it changed for the Dometic 3 way on returning from our first trip away because of the problems keeping it running on 12v. We have 2 X 100ah batteries and 2 solar panels...64 watt so not big ones, and were ok for only a couple of nights before we had to use a generator to recharge the batteries.

If you already have a generator, it will recharge your batteries and the solar will also help so you also have power options.

Cheers and happy travelling,

Heather G
Of all the paths you take in life, make sure a few of them are dirt. John Muir
AnswerID: 450639

Reply By: Member - Ian W1 (QLD) - Friday, Apr 08, 2011 at 06:23

Friday, Apr 08, 2011 at 06:23
Hi to all, I also have an Ultimate with a 3 way Dometic fridge. Over Christmas in western NSW when the ambient temp was 39, the fridge stayed at 3 degrees with the freezer at -4 running on gas. Maybe I'm lucky (it's a relativley new Ulti - # 951). We had a very quick rise in temp when we stopped for lunch and didn't turn the gas on. As said above, when on gas, the fridge must be level and make sure you turn the fridge fan on,,,the switch is in the front boot of the Ulti.
2Dogs
AnswerID: 450640

Reply By: Sand Man (SA) - Friday, Apr 08, 2011 at 07:17

Friday, Apr 08, 2011 at 07:17
Brendon,

A previous member of ExplorOz also has an Ultimate camper and he saved himself much hassle by chucking the 3-way and replacing it with an upright Engel Compressor fridge.

As a person who has had previous experience with a 3-way fridge in a Hiace camper van, all I can say is that they are very temperamental and basically, crap, when compared to a compressor style fridge.

Waeco also produce a range of upright fridges.
I have recently upgraded to a new camper trailer which has a Waeco 65 litre upright compressor fridge. Along with my faithful 40 litre Engel, I think I'm covered.

You read on this forum how someone has installed a fan to improve air circulation behind the 3-way, but 12 volt is only for when you are on the move (and only maintains some sort of stability) and must be run on 240v or gas when stationary and level.

Compressor fridges are the go mate.


Bill.
Bill


I'm diagonally parked in a parallel Universe!
AnswerID: 450647

Reply By: Bill13 - Friday, Apr 08, 2011 at 09:25

Friday, Apr 08, 2011 at 09:25
Hi Brenton,
I have a 3 way fridge that did not work very well especially while traveling. It was pointed out to me that the wiring from my battery to the anderson plug was to small and therefore to much resistance to supply adequate voltage to the fridge. I replaced the existing wire with 6bs wire and it improved it a lot, but on saying this the 3 way fridges do not run really well on 12volt, just maintains the existing temps that it started with.
I have connected a 12 v fan to the back of the fridge which is controlled by a thermostat which switches the fan off at night when the temps are cooler.
I also have a small fan in the fridge that circulates the inside air and stops the lettuce and fruit in the base of the fridge from freezing. I am now very happy with the fridge as I can park under trees in the shade while the fridge runs off the gas. One 9kg bottle lasts me about 13 -14 days. Much cheaper than updating to solar and a new fridge, but I suppose this would depend on frequency of use over time. If you want more details and pics on how it was done send me an email.
Bill
AnswerID: 450662

Reply By: Peter McG (Member, Melbourne) - Friday, Apr 08, 2011 at 11:21

Friday, Apr 08, 2011 at 11:21
Hi Brenton,

Firstly, I suggest you check the Ultimate Forum for discussion on this topic. You'll find some useful ideas there.

It sounds as if the new Dometic 3 way fridge is much better than the earlier ones. Having said that many of us have changed to 12v fridges.

If you have a decent size solar panel then you should be able to get by with only occasionally using the generator.

We've had the 110l Waeco for several years now and it's been good. I think the Engel option probably uses less power. Given that we now only use gas for cooking the large bottle lasts us for months.

Cheers

Peter
Peter
VKS Mobile 1906
AnswerID: 450675

Reply By: Member - Phil G (SA) - Friday, Apr 08, 2011 at 14:15

Friday, Apr 08, 2011 at 14:15
Brenton,
The newer model Ultimates have one of the best setups I've seen for 3-way fridge. All the switching is done automatically and triggered by an IGN feed from the vehicle, so that when you turn off the vehicle it switches from 12V to LPG after 15 minutes.

If yours is a later model, stick with it.
2012 VDJ200 Landcruiser
Swags, tents, Tvan or caravan
AnswerID: 450690

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 14:19

Sunday, Apr 10, 2011 at 14:19
Hi Phil
None of that wil help if they are not installed correctly!!

Peter
0
FollowupID: 723387

Reply By: paulnsw - Friday, Apr 08, 2011 at 21:47

Friday, Apr 08, 2011 at 21:47
Doesn't matter what you do to the fridge you will never get it to maintain satisfactory safe food storage cabinet temperature above 32C and start packing up at 28C and definitely by 30C. Dometic RM23xx, 44xx and 73xx are SN rated Climate class 'SN' room temperatures +10°C to +32°C
Thetford fridges are even worse than Dometic
AnswerID: 450736

Follow Up By: Member - Boobook - Saturday, Apr 09, 2011 at 19:23

Saturday, Apr 09, 2011 at 19:23
Paul, this is wrong.

I always get 2 degrees and often freezing in a 3 wat 23xx fridge ON 12v. It has to be done properly.

200 with 2012 Tvan Canning
VKS Mobile 1523
0
FollowupID: 723305

Follow Up By: paulnsw - Saturday, Apr 09, 2011 at 20:54

Saturday, Apr 09, 2011 at 20:54
Yet another miracle fridge story that is impossible when the manufacturer tells you you cannot.
2C is perfectly achievable in the cabinet when the ambient temperatures are low like 18/21C. When you get towards 28C it is impossible to get 2C in the cabinet and maintain it regardless of what you do if using the fridge normally. Once you get to 32C+ cabinet temperatures are getting up in the region of 9C.
0
FollowupID: 723320

Follow Up By: Member - Boobook - Sunday, Apr 10, 2011 at 08:08

Sunday, Apr 10, 2011 at 08:08
paul, you can't justify your ignorance just by making stuff up.

Why just leave it that you don't know what you are talking about. That is a fact.
200 with 2012 Tvan Canning
VKS Mobile 1523
0
FollowupID: 723351

Follow Up By: paulnsw - Sunday, Apr 10, 2011 at 14:02

Sunday, Apr 10, 2011 at 14:02
Bookbook it ain't no ignorance it is fact. The Dometic fridge is SN rated and can only perform to what Dometic stipulate. Go and ask on any caravan forum where they will tell you what a failure and how bad the Dometic RM23xx, 44xx and 73xx are once you pass 28C. Unfortunately there are no miracle fridges and that includes yours. Obviously you have never used your POS above 32C. It is impossible to maintain Australian Food Storage Standards in the POS you have above 28C and use the fridge as you would expect to opening and closing and putting in some warm food. I don't have to make anything up at all, only state the real facts. You always get somebody that stands up on public forums and swears blind theirs does this or that because they don't want to admit to owning a POS product.
0
FollowupID: 723385

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 14:14

Sunday, Apr 10, 2011 at 14:14
Hi Boobook

I'll 2nd THAT
I wonder if paul has any actual experience with improving the 3ways performance
It can work out a lot more reliable ,cheaper,& no worry about:-
generators ,fuel ,maintenance, breakdowns, where you can use them, etc.

solar panels,portable which have to be stored when travelling ,stolen when away from camp, or if fixed having to park in the sun.

Although I do not expect many to say so I wonder how many who have changed from 3ways now wish they had not.
Unless of course they heavily use powered sites!!

I have both Engel & 3way in my motor home, I have 200watts of solar , 200amphrs of battery

i have carried out improvements to the 3way installation total cost under $50
It now works & maintains under 3C in the fridge section in ambient up to 36C so far .
IT's all a question of getting the condenser cooled,improving insulation to reduce heat to the interior,etc.

I would not go anywhere of the beaten track without my 3way!!
Peter
0
FollowupID: 723386

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 14:37

Sunday, Apr 10, 2011 at 14:37
Hi Paul
It seems you have ,claim, some experience with fridges
DOES that extend to 3ways,??/
If so you should be able to answer this simple question:-
What problems with the operation of a 3way does high temperature cause
,apart from insulation losses??

Peter
0
FollowupID: 723389

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 17:27

Sunday, Apr 10, 2011 at 17:27
Hi Paul
I see you have not answered the above yet
Is that because you have no actual experience with a decently installed 3way?

Or are all your statements only coming from perhaps your experience with one of your own & what you have read ?
IF you kept an open mind & read all this is you will see that many many happy people have reinstalled their fridges correctly & are very happy with the Them .
A few have even been happy with the original installation because it was done correctly
OR DO YOU SAY THEY ARE JUST TELLING PORKIES, is so for what reason??
It IS a widely accepted FACT that very few fridges are installed to makers specs!!
Peter
0
FollowupID: 723406

Follow Up By: Member - Boobook - Sunday, Apr 10, 2011 at 18:13

Sunday, Apr 10, 2011 at 18:13
Paul, now you know so much, you know where I have been and how my fridge performs even though you have never met me and have shown that you know little about the subject matter.

Keep posting mate. You are a such a wit.

200 with 2012 Tvan Canning
VKS Mobile 1523
0
FollowupID: 723407

Follow Up By: paulnsw - Sunday, Apr 10, 2011 at 19:53

Sunday, Apr 10, 2011 at 19:53
Correct installation of a 3 way is very important, but adding extra insulation and fans will not improve the rated performance of an SN or ST or T fridge past what the specification is. You cannot create more cold out of a fridge that is not capable. If you could then the manufacturer would rate all fridges as T Tropical rated to 43C. The SN regardless of what you do start dropping their load at 28C the ST at 32C and the T at 36C.
You can add as many bats to the sides as many fans top and bottom or inside and you are stuck with with the manufacturers rating.
The only T rated fridge are the RM24xx, RM25xx and RM46xx and the rest are next to useless POS in the 5 months of summer. They make a good cool box for veg and the freezer generally will stay frozen for short term storage only.
0
FollowupID: 723422

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 20:06

Sunday, Apr 10, 2011 at 20:06
Hi Paul
I cannot put it any other way than you are talking CRAP!!
In fact the crap gets sillier every time you add a post

I do not know what your qualifications are but I noticed ,You have not replied to my question :-

""What problems with the operation of a 3way does high temperature cause,
,apart from insulation losses??


There is an answer do YOU know what it IS??
And A further question how can problems be minimized""

IT IS A CASE OF PUT UP OR SHUT UP

Peter
0
FollowupID: 723426

Follow Up By: paulnsw - Sunday, Apr 10, 2011 at 20:28

Sunday, Apr 10, 2011 at 20:28
Peter everybody knows except you that temperatures above the manufacturers rating of the fridge will cause the fridge to stop working.
If you cannot understand this "The SN regardless of what you do start dropping their load at 28C the ST at 32C and the T at 36C." there is no help for you.
Peter the only crap here is your ignorance. Ignorant protagonists cannot be helped.
0
FollowupID: 723430

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 20:51

Sunday, Apr 10, 2011 at 20:51
RE paulnsw posted:
Peter everybody knows except you that temperatures above the manufacturers rating of the fridge will cause the fridge to stop working.
If you cannot understand this "The SN regardless of what you do start dropping their load at 28C the ST at 32C and the T at 36C." there is no help for you.
Peter the only crap here is your ignorance. Ignorant protagonists cannot be helped."



HI Paul
It is obvious from your reply that you do not understand the basic operation of a 3way fridge ,Or what are limiting factors as far as operation goes.
CAN YOU you answer the questions i asked or not??

I & others are talking about practical experience & actual use!!
We are not imagining the results obtained.
just so you UNDERSTAND , NO ONE is claiming a 3way is more efficient,or can cool as fast as a compressor fridge.

IF you have the power source available that is, mains power, or lots of solar , batteries , generator etc then go for a compressor fridge
As I said I have both!!!
What is being argued is your totally incorrect comments re 3ways & their ability.
IT seems your limit of knowledge on 3ways is what you have read , NO PRACTICAL EXPERIENCE

Peter

OPEN you mind up a bit, get rid of these preconceived ideas ,
YOU JUST MAY LEARN SOMETHING!!
0
FollowupID: 723433

Follow Up By: Member - Boobook - Monday, Apr 11, 2011 at 07:21

Monday, Apr 11, 2011 at 07:21
Paul, since you seem to know so much about me and where I have been, you may recall that the hottest places I had my camper and fridge after I reinstalled it, were Kurumba where it was regularly over 37 and the inside of the fridge was about 4, and in Victoria in 2009 when it was 47 where the fridge was about 8 degrees ( yes too hot but better than your unbelievable post above that food is unsafe at 28degrees ambient). I KNOW what I have experienced, and YOU DON'T, regardless of what diatribe you pretend to know about.

Honestly you certainly appear to suffer from a classic bad case of a little knowledge is a dangerous thing. You should do a little more research before jumping to conclusions, posting false statements and worst, rudely telling people they are wrong when you have no idea. Your credibility is about zero on this subject. You take the standards that you obviously don't understand that build an argument around a context that they don't relate to.

Honestly mate you have obviously never had any experience on this other than internet forum research, and it clearly shows. Stick to what you know about, so readers are not mislead.

It is pointless discussing it with you further because you show a complete disregard for facts and opinions other than your misinformed ones. You should be ignored by those seeking assistance on this subject.
200 with 2012 Tvan Canning
VKS Mobile 1523
0
FollowupID: 723448

Follow Up By: oldtrack123 - Monday, Apr 11, 2011 at 08:05

Monday, Apr 11, 2011 at 08:05
Hi Boobook

Naaah you don't know what you are talking about, according to Paul!!

I believe even a compressor fridge would have a job ahead of it @ 47C certainly would be running continuously

Look @ the problems some have with them not performing in totally enclosed canopies .

Peter
0
FollowupID: 723449

Reply By: Member - Bruce T (SA) - Saturday, Apr 09, 2011 at 06:27

Saturday, Apr 09, 2011 at 06:27
Hi Brenton,

We have a 3 way fridge in our caravan and used to have issues with things staying cold while travelling. We organised an Anderson Plug and had a small fan put in behind the fridge that automatically comes on at a certain temperature (forget what it is). It works superbly now. We use gas when we do not have 240v available.

I note you are from SA. We got the Home of 12Volt to do ours and they were great. We have no affiliation apart from being satisfied customers.

Cheers,
Di
Prado In the Flinders 2011
AnswerID: 450749

Follow Up By: oldtrack123 - Sunday, Apr 10, 2011 at 20:59

Sunday, Apr 10, 2011 at 20:59
Hi Brenton
In case you miss it go back to follow up#2 of2 in your OP

Peter
0
FollowupID: 723434

Reply By: MEMBER - Darian, SA - Sunday, Apr 10, 2011 at 21:17

Sunday, Apr 10, 2011 at 21:17
What have you started Brenton ? :-o).......
Just a thought - 3 ways can be brilliant - most vans have them - it might just be that in a unit like the Ultimate, cooling of the unit's exterior might be compromised and level parking (in the terrain that the Ultimate can go to) might be a snag. A compressor type might well have been the best specification for the trailer's manufacturer in the first place.
Conventional wisdom seems to be that - 3 ways need to be quite level when static - level doesn't matter much while mobile - gas is the premium performance mode - most users get the fridge quite cold prior to a drive and only ask the 12v mode to maintain that while mobile. PS: I ordered my offroad caravan with a compressor fridge and got no argument from the manufacturer (hell - that gets them more solar panel and battery sales too I guess :-o) - at the same time though, I know they do advise other customers with the same intended use as mine to go tropical rated 3 way (presumably because they know it works).
"Don't wear a red shirt to Bunnings"
AnswerID: 450882

ExplorOz Shop Suggests (12)