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Hi Sense Aircon - does anybody know about this???

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09 Sep 2017 @ 17:23:15 pm
Camdeboo Rover
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Hi, I have recently seen an unusual HiSense aircon setup on a motor home which I wanted to look into as a possible option for our Gypsey Rhapsody, since we really don't have space to fit the convetional compressor in the front locker. Apparently it had been fitted by a retired refridgeration guy who lives in Vanderbijl Park, and was in three separate positions around the motor home. The compressor was a neat rectangle of about 30 x 20 x 20 fitted in 'the boot' with air access from a vent at the bottom, a fan cooling the fins had been fitted under the floor near the axle and the control unit was a normal one in the motorhome itself. I have looked on the Hi Sense website but nothing like it exists. Unfortunately we had to leave the campsite before I could get this refridgeration guys' contact details. Does anybody out there know of this guy, or what he actaully installed???
Thanks Angie
p.s. We have previously asked the price of the under bed Dometic version (import from UK) which has ventilation through an installed wall vent panel, but they want R25K for it, and we can't afford that.
09 Sep 2017 @ 23:12:00 pm
Chris E
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I'm guessing the guy just took a standard split unit apart and fitted the separate parts at different locations. He then probably just put in longer pipes to connect everything. Should be entirely possible to do for any guy that knows how to work on a refrigerator and that has some "Boer maak 'n plan" skills. I find the option intriguing. You should be able to fit the compressor in the space below and behind the fridge. Also would be interested to know who did the work.
10 Sep 2017 @ 06:59:31 am
Camdeboo Rover
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Hi Chris,
I would have said the same (just a unit taken apart) however the compressor part had a full proper outer casing with 'HiSense' written logo on outside - suggesting that this was a separate unit in it's own right hence for the enquiry into the greater caravan world to see if anyone knew if it was. I wondered if maybe it was a commercial unit and therefore not normally available to the general public. We have had to fix our aircon in the past and the 'normal' shaped box just has the compressor sitting in fresh air next to the fan section, i.e not in a separate metal box.
Thanks for the reply anyway.
10 Sep 2017 @ 07:11:39 am
steamer
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10 Sep 2017 @ 09:48:16 am
Campervan
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Welcome to the forum Angie,
Most aircon units are not available to the general public,
This is because there are too manny come-backs when the average Joe tries to fit something that he has no idea about.
These units work on specific types and quantities of model specific gasses, that are continuously changed as technologies change and to help with cost cutting. The units however never seem to come down in price, like everything else.
Any REPUTEABLE refrigeration or air con technician should be able to assist you in this and give you a quote for the fitting of a suitable unit.
Also, I would suggest that you do not go for the smallest unit that will be able to service the given area, but go a size up, otherwise the unit will struggle in very hot or humid conditions and WILL be a disappointment for the money spent.
Specifically request that the different components be split up in the caravan to distribute the weight more evenly...
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11 Sep 2017 @ 01:43:25 am
Danie-SLK
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Welcome to the forum. Although a number of people would advise against using the older type of window units as they are on the floor and not the ideal of spreading cold air out close to the roof to allow the cold air to move down I think the small WRA-7HG from Carrier is still a unit one can consider. Cooling capacity is 7000BTU.

I know of at least one caravan workshop that has installed a number of these units and I have some family that have it installed under the bed and they are very happy with it.

Although the price has gone up quite a bit I did get a quote for R5300 from a place in Pta in January.

As these units are ready to be used there is no problem to self install it. It is know that some dealers will not sell to the public due to reasons already given but one can shop around to get some that do.

If self installed there won't be a warranty but at the same time a lot of split units will also not honour the warranty if installed in a caravan.

11 Sep 2017 @ 08:07:49 am
Camdeboo Rover
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Thank you very much everyone. I will look at the Carrier model, as it seems self contained. One thought we have had in the past is a portable unit that could sit on the top of the wardrobe when the roof is up. The idea would be to modify the canvas/flyscreen with a suitable hole that can be sealed (think of zip up hole and Velcro) to keep out the bugs etc. Depending on the weight this could be an option. I also have the feeling - on looking at the picture - that this is what is installed in one of the fancy off road trailer tents that I saw last year at the Beeldt Show. The one with the big bathroom? Mobi something?

Anyway, much obliged
11 Sep 2017 @ 10:05:01 am
Danie-SLK
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The weight is 28kg as per the specs I got.

11 Sep 2017 @ 12:23:01 pm
Leon
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Welcome to the forum. Although a number of people would advise against using the older type of window units as they are on the floor and not the ideal of spreading cold air out close to the roof to allow the cold air to move down I think the small WRA-7HG from Carrier is still a unit one can consider. Cooling capacity is 7000BTU.

I know of at least one caravan workshop that has installed a number of these units and I have some family that have it installed under the bed and they are very happy with it.

Although the price has gone up quite a bit I did get a quote for R5300 from a place in Pta in January.

As these units are ready to be used there is no problem to self install it. It is know that some dealers will not sell to the public due to reasons already given but one can shop around to get some that do.

If self installed there won't be a warranty but at the same time a lot of split units will also not honour the warranty if installed in a caravan.


While we still had the Classique I was thinking about this air-con and fit it in the window of the caravan. They can be used as a plug and play unit like a kettle.
Al you need to do is fit a plug to the 220V cable provided. Make a tray with aluminium SQ tubing and connect-it blocks similar to that used at a roadhouse when they bring the food to your car. Just make the legs adjustable from the ground and not from the side of the van. (Due to the weight of the Unit) Set up the tray. Place the Air-con on the tray. Plug it in and there you go.
There are some other pointers I can give like, how to:
1. Seal of the gap around the air-con neatly
2. Make sure it is not stolen while you are not at the caravan
3. Making it more user friendly.
And so on.
This is much cheaper. No need for installation costs. You only travel with it when you know you will need it. Can be used at home while not in use with the van. The weight of it is about 29kg. You only need to store it while traveling as it fits neatly in the window while camping.
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11 Sep 2017 @ 14:45:31 pm
Danie-SLK
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It's actually very easy to seal it against the caravan by using the very same rubber that seals the window by using a piece of misted perpex around the unit and the bottom of the unit can partially rest on the bottom of the window sill and supported. Brackets that secure on the sides of the unit can be used to go on the inside of the wall so that the unit cannot be removed from the outside.

I think it is great not to always take it along as Leon suggested and used at home. With higher temperatures than years ago one can do with such a unit in the house/garage etc.

 

13 Sep 2017 @ 14:46:35 pm
Chris E
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Man! As ek die geld gehad het.

Kyk bietjie hier

https://www.mobilodge.com/1-Dometic-Freshwell-3000-Air-Conditioner-9200BTU-installed-in-Mobi-Lodge

Jy sit hom onder die bed en installeer pype vir uitlate. Hy suig warm lug in vanuit die ruim, en blaas koue lug terug. Vir sy condenser maak jy twee gate in die vloer waar hy lug insuig en uitblaas. 25kg, 9000btu, supernetjies, loop ook op 12V... Maar dit kos amper R19,000

 

 

13 Sep 2017 @ 15:00:14 pm
Chris E
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Oops, sorry for the afrikaans. Got a bit excited!

Here's another one

http://www.vanbiljoens.co.za/index.php/product/9000-btu-maclaren-hb9000-under-bench-air-conditioning-unit-r410a/

R14,250

Looks like the thing to search for is; "under bench RV aircon"

13 Sep 2017 @ 15:39:53 pm
Danie-SLK
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Man! As ek die geld gehad het.

Kyk bietjie hier

https://www.mobilodge.com/1-Dometic-Freshwell-3000-Air-Conditioner-9200BTU-installed-in-Mobi-Lodge

Jy sit hom onder die bed en installeer pype vir uitlate. Hy suig warm lug in vanuit die ruim, en blaas koue lug terug. Vir sy condenser maak jy twee gate in die vloer waar hy lug insuig en uitblaas. 25kg, 9000btu, supernetjies, loop ook op 12V... Maar dit kos amper R19,000

 

 

Dis darem maar grand. Ek wonder net hou lank kan dit op 12V loop aangesien mens minstens 75 Amp gaan nodig he behalwe as die 9000BTU afgeskaal word na iets soos 200BTU.

Dit sal interessant wees om die spesifikasies te sien rondom die 12V deel.

Om te dink dat 'n gewone vloer aircon omtrent R7000 kos beteken dit die 3 pype met hul plek waar hulle vaskom sowel as die 3 uitlate op die McLaren 9000 kos R7000. Mens betaal vir die goeie konsep en nie vir wat mens kry nie.

 

13 Sep 2017 @ 17:17:24 pm
Leon
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Man! As ek die geld gehad het.

Kyk bietjie hier

https://www.mobilodge.com/1-Dometic-Freshwell-3000-Air-Conditioner-9200BTU-installed-in-Mobi-Lodge

Jy sit hom onder die bed en installeer pype vir uitlate. Hy suig warm lug in vanuit die ruim, en blaas koue lug terug. Vir sy condenser maak jy twee gate in die vloer waar hy lug insuig en uitblaas. 25kg, 9000btu, supernetjies, loop ook op 12V... Maar dit kos amper R19,000

 

 


Hy werk nie met 12V nie. Slegs met 220V na my kennis. Dit is die aircons wat Sensation as standaard gebruik tensy jy 'n split eenheid wil hĂȘ as jy 'n karavaan by hulle bestel.
Tans is ek gelukkig met die een. Werk heel gerieflik vir ons.
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13 Sep 2017 @ 18:46:13 pm
Camdeboo Rover
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Hi,
Athough I can't read what you have all written recently since I unfortunately don't speak Afrikaans, but I do know about the dometic version as we requested a quote from Dometic SA last year, and I actually mention it in the original post. Then it worked out about R25K because on top of actual cost (it's only imported to order) is the cost of installation. That sum represents about 20% of what we original paid for the caravan, not to mention making it grossly overcapitalised should we wish to sell it later. Also the bottom line is as pensioners we cannot afford that level of expenditure.
We are currently investigating the feasibility of getting installed a wall vent under the table in order to use a portable compressor type - Russell Hobbs has a small sized unit for about R6-7K that goes down to 16degrees/10K BTU. It will be a hassle with the 'tumble dryer' type flexible vent hose, but frankly at the moment we see that as the only real viable alternative to installing the conventional aircon which will rob us of lots of storage space both internally and in the front compartment. Something we are loath to do which is why we are researching alternatives.
thanks for all the help though, much appreciated for the imput!



14 Sep 2017 @ 11:42:04 am
Chris E
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Cam, sorry about that got a bit excited.

Let's get back to english.

 

Something I've been wondering about, and maybe something you want to look out for.

The portable ACs I've seen has ONE pipe coming out the back, like the one at the left. I always wondered where the inlet air comes from.

But I see you get units with two pipes, like the one on the right. Here is why I think you need that and why you should look out for such a unit even if it costs more.

The one pipe unit draws air to cool the condenser from air surrounding the unit, thus the inside of the caravan, and blows the hot air out through the pipe (you can see an inlet vent on the left unit above the pipe) . This works great if you are sitting outside and want something to blow cool air on you. But if the unit is sucking air from the caravan inside, then it needs to be replaced by air from somewhere else. So the AC is constantly sucking air through every possible leak in your caravan, and most caravans do not seal particularly well. 

If you are in kruger in January the air it is sucking in is 42C, so the AC constantly has to fight against this. It will also draw in dust if there is any around. If your caravan is very well sealed the internal pressure will just drop, to the point where the fan in the AC is not moving any air anymore.

So look out for a unit with two pipes

You could also get a second pipe and make a hood that fits over the inlet vent so it draws air directly from OUTSIDE the caravan. May be the cheapest/most practical option given the apparent lack of units with inlet and outlet pipes.

 

 

I think the setup below is something like what was spoken of previously. Just replace a window (the smallest one maybe?) with a piece of perspex, with holes precut for the pipe/pipes, and let the window seal do the work. You could even get the right hinges and handles for a proper window so you can just take of the standard window and replace it with your modified version.

14 Sep 2017 @ 13:19:42 pm
Bushbaby
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Hi Chris I use a 14000 Btu self evaporating portable single hose model.I am no aircon fundi but with a single hose unit only part of the air is expelled outside while the majority of air is  returned to the caravan as cold. This will result in only a small negative pressure the way I see it.

Dual hose units are not readily available in places like Makro etc.

I have used my unit at 42C in Kruger and yes it struggled but so did the split units.But any temp  up to say 38 C its a pleasure.

 

 

14 Sep 2017 @ 15:05:52 pm
Danie-SLK
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This picture shows the better airflow if only 1 pipe is used. There is a larger area to suck in the air in the room/caravan and only exhausts the hot air via the only pipe.

I have a portable with the 2 pipes and it is working fine. This picture shows the current Defy design with 1 pipe.

 

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