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DIY - Budget Air Conditioning in an A'van

 

Hi Bob & Chrissy

Firstly, thank you for the Aroundoz site and the interesting items from other A'vanners. We have had our A'van for just over two years and covered some 25,000 kilometres in that period. We purchased it in Perth and took delivery in Victoria from there we zigzagged to Bundaberg before heading for home - Geraldton W.A. This ten week trip is the longest we have undertaken. Our Van is A Liner 3 Series 2000 with the Adventure Pack with 10cm higher sides for the larger refrigerator.

 

     

 

Installing a Home Style Budget Air-conditioning

Nowadays one would not purchase a vehicle without air-conditioning, we feel the same goes for a caravan. So one of the first items planned, was to air-condition the van without it taking up valuable storage space. We settled on using a household air-conditioner placed on a frame to fit through the sliding window over the cook top. (You can purchase four and a bit household air-conditioners for the price of one fitted in a Caravan not to mention the loss of space).

We used a 1 HP Fujitsu model AKT7A - cooling only. Weight 27 kg.  This model leaves 10mm clearance at the top and sides with sufficient room for 400mm double draw sliders at the bottom.

Caution: As a household air conditioner is not designed for a caravan the vibration of the compressor will cause the tubes to fracture. To reduce this vibration while traveling I made a stainless steel bracket with a piece of rubber on top to support the fans motor (see photo). The manufacturer of the air conditioner placed a hole in the base plate below the compressor for support packaging it fits up against the top nuts to prevent vibration while traveling. This made it easy to replace the packaging with a block of wood.

The support platform was made with folding timber legs down to the bench so that  the weight is carried by the bench. On the outside there are support brackets. The top one has  a backing plate on the inside similar to the closing latches for the roof. The lower bracket is bolted to the underside of the van with the refrigerator vent removed to tighten nuts (take care not to damage refrigerator components).

 

     

 

Use a vice to make the flats on the aluminium tubing. When the ends of tubing are out of alignment bolt  the first end to the bracket then mark where the tube comes in contact with next bracket. This then becomes the middle of the flat section after squashing in the vice.

 

     

 

As the draw slider has to be level, the last part of the exercise is to have a 10mm slope outwards on the air conditioner platform for the water to drain away as per installation instructions. This is achieved by dismantling the platform and removing the sides of the platform so that the top outer end of the sides can be tapered 10mm.

 

     

 

Material:
 

Timber - Meranti  70mm x 19mm &  42mm x 19mm

Sealing - Grey Foam Tape 19mm x 20mm

 

     

 

Small gusset in the radius of the LH corner of sliding window (from outside) was made from scrap model aircraft plywood. An alternative would be to use construct this from PVC a down pipe or gutter connector using the appropriate glue. The power chord goes through a slot in the ply seat to a double power outlet shared with the battery charger.

 

     

 

Fly wire is easy to replace using a roller designed to push the beading back into the slot.
 

Suggested improvement

Use two pieces of aluminium tubing as a cross brace from frame to underside of van and a single piece of tubing at the top to hold frame in position so the folding legs do not collapse when using slider.

Yes, by all means it is OK to share these ideas with the USA A'vanners

Kind regards

Ray & Jean Yeates

 

       

 


 

 

 

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Last updated: 28-Jan-03